2018 Audi A3 Engine Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

This page lists 140 engine parts for the 2018 Audi A3, across 53 part types, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.

The engine on the 2018 Audi A3 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Crankshaft Seal (8 parts), Valve Cover Gasket (8 parts) and Cylinder Head Gasket (7 parts). The other 50 part types cover the remaining 117 parts.

Camshaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 242650
🇲🇽 MX
Dust Cover: with dust LipHeight [MM]: 7
Fitment notes — ELRING 242650
Dust Cover: with dust LipHeight [MM]: 7Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Right-hand Twist
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 897690
🇲🇽 MX
Dust Cover: without dust LipMaterial: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)
Fitment notes — ELRING 897690
Dust Cover: without dust LipMaterial: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Right-hand Twist
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 523650
🇲🇽 MX
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Left-hand Twist
Fitment notes — ELRING 523650
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Left-hand Twist
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 814110
🇲🇽 MX
Material: FPM (Fluoride Rubber)
Fitment notes — ELRING 814110
Material: FPM (Fluoride Rubber)
Attraction
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This table covers the seals at each camshaft end. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Circular / Semi-Circular Plug

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 391020
🇲🇽 MX
Outer Diameter [MM]: 32
Fitment notes — ELRING 391020
Outer Diameter [MM]: 32
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This table covers the Circular / Semi-Circular plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.

Connecting Rod Bolt

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 038970
🇲🇽 MX
Bolt Head-/Nut Design: Male TorxThread Size: M9X1X50
Fitment notes — ELRING 038970
Bolt Head-/Nut Design: Male TorxThread Size: M9X1X50
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 039000
🇲🇽 MX
Bolt Head-/Nut Design: Male TorxThread Size: M8X1X44
Fitment notes — ELRING 039000
Bolt Head-/Nut Design: Male TorxThread Size: M8X1X44
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 038820
🇲🇽 MX
Bolt Head-/Nut Design: Male Star
Fitment notes — ELRING 038820
Bolt Head-/Nut Design: Male Star
Attraction
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This table covers the Connecting Rod bolts.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 54258600
🇲🇽 MX
Engine # CJSA, CJSB, CNSB
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ELRING Fits: 1.8L L4 Turbocharged 798670
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 452990
🇲🇽 MX
with Crankshaft Seal
Fitment notes — ELRING 452990
with Crankshaft Seal
Attraction
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This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Crankshaft Main Bearing Cap Bolt

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 206350
🇲🇽 MX
Thread Size: M10X80
Fitment notes — ELRING 206350
Thread Size: M10X80
Attraction
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This table covers the Crankshaft Main Bearing Cap bolts.

Crankshaft Seal

Brand Part Number Markets Notes Buy
ELRING Popular Fits: 1.8L L4 Turbocharged 248300
🇲🇽 MX
Height [MM]: 8Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)
Fitment notes — ELRING 248300
Height [MM]: 8Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Right-hand Twist
Attraction
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ELRING Popular Fits: 1.8L L4 Turbocharged 798660
🇲🇽 MX
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: SP
Fitment notes — ELRING 798660
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: SPSwirl Type: Left-hand Twist
Attraction
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AJUSA Fits: 1.8L L4 Turbocharged 71007200
🇲🇽 MX
RearEngine CJSA,CJSB,CNSB
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ELRING Fits: 1.8L L4 Turbocharged 248270
🇲🇽 MX
Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: ASW
Fitment notes — ELRING 248270
Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: ASW
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 340290
🇲🇽 MX
Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: SP
Fitment notes — ELRING 340290
Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: SP
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 340280
🇲🇽 MX
with Mounting SleeveMaterial: PTFE (polytetrafluoroethylene)
Fitment notes — ELRING 340280
with Mounting SleeveMaterial: PTFE (polytetrafluoroethylene)Swirl Type: Left-hand Twist
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 523120
🇲🇽 MX
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: IWD
Fitment notes — ELRING 523120
Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: IWDSwirl Type: Left-hand Twist
Attraction
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VICTOR REINZ Fits: 1.8L L4 Turbocharged 814273700
🇲🇽 MX
FrontReplaces OE Part Number(s) 06L 103 085 B
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This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Crankshaft Seal Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 092360
🇲🇽 MX
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This table covers the gaskets that seal the Crankshaft Seal. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Cylinder Head Bolt

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 81054400
🇲🇽 MX
Engine # CJSA,CJSB,CNSB
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ELRING Fits: 1.8L L4 Turbocharged 323300
🇲🇽 MX
SetBolt Head-/Nut Design: Female Star
Fitment notes — ELRING 323300
SetBolt Head-/Nut Design: Female StarThread Size: M10X1,5x115
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 445910
🇲🇽 MX
SetBolt Head-/Nut Design: Female Star
Fitment notes — ELRING 445910
SetBolt Head-/Nut Design: Female StarThread Size: M9X1,25x140
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 351900
🇲🇽 MX
SetBolt Head-/Nut Design: Female Star
Fitment notes — ELRING 351900
SetBolt Head-/Nut Design: Female StarThread Size: M12X1,75x206
Attraction
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This table covers the bolts that clamp the cylinder head to the block.

Cylinder Head Gasket

Brand Part Number Markets Notes Buy
ELRING Popular Fits: 1.8L L4 Turbocharged 008040
🇲🇽 MX
Diameter [MM]: 83,3Installed Thickness [MM]: 0,9
Fitment notes — ELRING 008040
Diameter [MM]: 83,3Installed Thickness [MM]: 0,9Material: Multi-Layer Steel (MLS)
Attraction
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VICTOR REINZ Popular Fits: 1.8L L4 Turbocharged 614216500
🇲🇽 MX
Replaces OE Part Number(s) 06K103383K
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AJUSA Fits: 1.8L L4 Turbocharged 10202800
🇲🇽 MX
Multi Layered Steel
Fitment notes — AJUSA 10202800
Multi Layered Steel
83 Bore DiameterEngine CJSA,CJSB,CNSB
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ELRING Fits: 1.8L L4 Turbocharged 523821
🇲🇽 MX
Diameter [MM]: 76,5Gasket Design: Multilayer Steel (MLS)
Fitment notes — ELRING 523821
Diameter [MM]: 76,5Gasket Design: Multilayer Steel (MLS)Installed Thickness [MM]: 0,72Thickness: 0.72 MM
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 718051
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 718061
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 718071
🇲🇽 MX
Attraction
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This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Cylinder Head Gasket Set

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 52360600
🇲🇽 MX
Engine # CJSA, CJSB, CNSB
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ELRING Fits: 1.8L L4 Turbocharged 313201
🇲🇽 MX
Includes Valve Stem SealsInstalled Thickness [MM]: 0,9
Fitment notes — ELRING 313201
Includes Valve Stem SealsInstalled Thickness [MM]: 0,9
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 576280
🇲🇽 MX
without Cylinder Head Gasketwith valve stem seals
Fitment notes — ELRING 576280
without Cylinder Head Gasketwith valve stem seals
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 877090
🇲🇽 MX
Includes Valve Stem SealsInstalled Thickness [MM]: 0,72
Fitment notes — ELRING 877090
Includes Valve Stem SealsInstalled Thickness [MM]: 0,72
Attraction
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This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Engine Cover

Brand Part Number Markets Notes Buy
TECHPRO Fits: 1.8L L4 Turbocharged AU1228140
🇲🇽 MX
Front LowerMaterial: PE/Vacuum Form
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TECHPRO Fits: 1.8L L4 Turbocharged AU1228128
🇲🇽 MX
Front Lower
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This table covers the Engine covers.

Engine Kit Gasket Set

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 50447100
🇲🇽 MX
Engine # CJSA,CJSB,CNSB
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This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Fuel Pump Camshaft Follower

Brand Part Number Markets Notes Buy
INA Fits: 1.8L L4 Turbocharged VT02941
🇲🇽 MX
with CNSB Engine
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This table covers the followers that drive a mechanical fuel pump off the camshaft.

High Pressure Diesel Injection Oil Pump (HPOP)

Brand Part Number Markets Notes Buy
MARELLI Fits: 1.8L L4 Turbocharged PHP1002
🇲🇽 MX
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This table covers the high-pressure oil pumps that fire HEUI diesel injectors. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.

Intake Manifold Gasket

Brand Part Number Markets Notes Buy
ELRING Popular Fits: 1.8L L4 Turbocharged 297590
🇲🇽 MX
Material: Fluoroelastomer (FPM)
Fitment notes — ELRING 297590
Material: Fluoroelastomer (FPM)
Attraction
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AJUSA Fits: 1.8L L4 Turbocharged 13245500
🇲🇽 MX
Engine CJSA, CJSB, CNSB
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ELRING Fits: 1.8L L4 Turbocharged 470370
🇲🇽 MX
Inner Diameter [mm]: 45
Fitment notes — ELRING 470370
Inner Diameter [mm]: 45
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 352810
🇲🇽 MX
Material: Metaloseal
Fitment notes — ELRING 352810
Material: Metaloseal
Attraction
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VICTOR REINZ Fits: 1.8L L4 Turbocharged 714278600
🇲🇽 MX
Replaces OE Part Number(s) 06K129717A
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This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Intermediate Shaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 299640
🇲🇽 MX
Outer Diameter [MM]: 32
Fitment notes — ELRING 299640
Outer Diameter [MM]: 32
Attraction
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This table covers the seals at the Intermediate Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Motor Mount

Economy

Brand Part Number Markets Notes Buy
SUSPENSIA Fits: 1.8L L4 Turbocharged X01EM0012
🇲🇽 MX
Right
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SUSPENSIA Fits: 1.8L L4 Turbocharged X01EM0007
🇲🇽 MX
Frontwith Hydraulic Bearing
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 5Q0199262BK
🇲🇽 MX
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Standard Replacement

Brand Part Number Markets Notes Buy
BECK/ARNLEY Fits: 1.8L L4 Turbocharged 1042355
🇲🇽 MX
Right
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This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.

Oil

Summary: Notes list SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE and VAICO.

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: 1.8L L4 Turbocharged VV966
🇲🇽 MX
European Vehicle Full Synthetic SAE 5W-401 Quart
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VAICO Fits: 1.8L L4 Turbocharged V600422
🇲🇽 MX
Description: Engine Oil SAE 5W-40 C3 1 L
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VAICO Fits: 1.8L L4 Turbocharged V600423
🇲🇽 MX
Description: Engine Oil SAE 5W-40 C3 4 L
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VALVOLINE Fits: 1.8L L4 Turbocharged 881166
🇲🇽 MX
European Vehicle Full Synthetic SAE 5W-40Easy Pour 5 Quart
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VALVOLINE Fits: 1.8L L4 Turbocharged 881167
🇲🇽 MX
European Vehicle Full Synthetic XL-III SAE 5W-30Easy Pour 5 Quart
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This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.

Oil Cooler

Brand Part Number Markets Notes Buy
ÜRO PARTS Fits: 1.8L L4 Turbocharged 06L117021E
🇲🇽 MX
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This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant.

Oil Cooler Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 279610
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 482140
🇲🇽 MX
Attraction
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MAHLE / CLEVITE Fits: 1.8L L4 Turbocharged B33478
🇲🇽 MX
Engine Oil Cooler GasketMolded Rubber
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This table covers the gaskets that seal the Oil Cooler. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Cooler Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 315540
🇲🇽 MX
Material: HNBR (hydrogenated nitrile butadiene rubber)
Fitment notes — ELRING 315540
Material: HNBR (hydrogenated nitrile butadiene rubber)
Attraction
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This table covers the seals at the Oil Cooler. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Oil Drain Plug

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: 1.8L L4 Turbocharged 090090
🇲🇽 MX
Plastic
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ELRING Popular Fits: 1.8L L4 Turbocharged 588690
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 982340
🇲🇽 MX
with Seal RingBolt Head/Nut Design: Hexagon Socket
Fitment notes — ELRING 982340
with Seal RingBolt Head/Nut Design: Hexagon SocketThread Size: M14X1,5x12
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 567640
🇲🇽 MX
with Seal RingBolt Head-/Nut Design: Male Hex
Fitment notes — ELRING 567640
with Seal RingBolt Head-/Nut Design: Male HexThread Size: M14X1,5x22
Attraction
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 06L103801PRM
🇲🇽 MX
ÜRO SolutionsHD Brass Upgrade, ACM Synthetic Rubber O-Ring
Fitment notes — ÜRO PARTS 06L103801PRM
ÜRO SolutionsHD Brass Upgrade, ACM Synthetic Rubber O-RingPremium Brass ConstructionIncludes O-Ring
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 11137618512DP
🇲🇽 MX
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This table covers the drain plugs in the oil pan.

Oil Drain Plug Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 813036
🇲🇽 MX
Material: CopperOuter Diameter [MM]: 20
Fitment notes — ELRING 813036
Material: CopperOuter Diameter [MM]: 20Thickness [MM]: 2
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 591840
🇲🇽 MX
Material: Steel
Fitment notes — ELRING 591840
Material: Steel
Attraction
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This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Drain Plug Removal Tool

Brand Part Number Markets Notes Buy
DORMAN Fits: 1.8L L4 Turbocharged 090999
🇲🇽 MX
For GM, Ford, VW, Audi and BMW
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DORMAN Fits: 1.8L L4 Turbocharged 49822
🇲🇽 MX
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This table covers the Oil Drain Plug Removal tools. This is a service tool, not a wear part — match the application in the notes.

Oil Filler Cap Gasket

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 24035800
🇲🇽 MX
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This table covers the gaskets that seal the Oil Filler Cap. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Filter

High Performance / Heavy Duty

Brand Part Number Markets Notes Buy
MOBIL Fits: 1.8L L4 Turbocharged M1C258A
🇲🇽 MX
Extended PerformanceStyle: Cartridge Lube Metal Free Filter
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MOBIL Fits: 1.8L L4 Turbocharged M1C258
🇲🇽 MX
Extended Performance15,000 Mile Warranty
Fitment notes — MOBIL M1C258
Extended Performance15,000 Mile WarrantyStyle: Cartridge Lube Metal Free Filter
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Standard Replacement

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 1.8L L4 Turbocharged OFCS2025
🇲🇽 MX
Includes Cap and Filter
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VARIOUS MFR Fits: 1.8L L4 Turbocharged PG8161EX
🇲🇽 MX
Extended LifeCartridge Filter
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This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.

Oil Filter Cover

Brand Part Number Markets Notes Buy
MOTORAD Fits: 1.8L L4 Turbocharged MO319
🇲🇽 MX
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 06L115401LPRM
🇲🇽 MX
ÜRO SolutionsFilter Not included
Fitment notes — ÜRO PARTS 06L115401LPRM
ÜRO SolutionsFilter Not includedHeavy Duty Aluminum UpgradeAluminum Construction VS OEM Plastic
FKM O-Ring
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VAICO Fits: 1.8L L4 Turbocharged V106835
🇲🇽 MX
Fits Transmission code: RAT, RAV, RMU, SKX, SQK, SWQ, SWR, SWS, TCY, TCZ, TDA, TNS, UAK, UAQ, UAT
Fitment notes — VAICO V106835
Fits:
Transmission code: RAT, RAV, RMU, SKX, SQK, SWQ, SWR, SWS, TCY, TCZ, TDA, TNS, UAK, UAQ, UAT
or:
Transmission code: RAT, RAV, RMU, SKX, SQK, SWQ, SWR, SWS, TCY, TDA, UAK, UAQ
or:
Transmission code: RAU, RJG, SQL, SWU, SWW, TDH, TDK, TNV, UAW, UAZ
or:
Transmission code: RAU, RJG, SQL, SWU, SWW, TDK, UAZ
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This table covers the Oil Filter covers.

Oil Filter Housing Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 279630
🇲🇽 MX
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 330260
🇲🇽 MX
Material: HNBR (hydrogenated nitrile butadiene rubber)
Fitment notes — ELRING 330260
Material: HNBR (hydrogenated nitrile butadiene rubber)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 332890
🇲🇽 MX
Material: AEM (Ethylene Acrylate Rubber)
Fitment notes — ELRING 332890
Material: AEM (Ethylene Acrylate Rubber)
Attraction
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This table covers the seals at the Oil Filter Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Oil Level Sensor

Brand Part Number Markets Notes Buy
ÜRO PARTS Fits: 1.8L L4 Turbocharged 03F907660E
🇲🇽 MX
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WELLS Fits: 1.8L L4 Turbocharged 5S15303
🇲🇽 MX
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This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.

Oil Level Sensor Gasket / O-Ring

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 351210
🇲🇽 MX
Colour: BlackMaterial: AEM (Ethylene Acrylate Rubber)
Fitment notes — ELRING 351210
Colour: BlackMaterial: AEM (Ethylene Acrylate Rubber)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 301540
🇲🇽 MX
Colour: Red
Fitment notes — ELRING 301540
Colour: Red
Attraction
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This table covers the Oil Level Sensor Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.

Oil Pan

Brand Part Number Markets Notes Buy
DORMAN Fits: 1.8L L4 Turbocharged 264629
🇲🇽 MX
LowerDirect Replacement For Plastic Pan
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DORMAN Fits: 1.8L L4 Turbocharged 264889
🇲🇽 MX
OE FIX
Fitment notes — DORMAN 264889
OE FIX
LowerAluminum PanImproved Design
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SPECTRA PREMIUM Fits: 1.8L L4 Turbocharged VWP55A
🇲🇽 MX
Includes Gasket
Fitment notes — SPECTRA PREMIUM VWP55A
Includes Gasket
Lower
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 06K103600RPRM
🇲🇽 MX
ÜRO SolutionsHeavy Duty Aluminum Upgrade
Fitment notes — ÜRO PARTS 06K103600RPRM
ÜRO SolutionsHeavy Duty Aluminum Upgrade
Heavy Duty Aluminum
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This table covers the oil pans that hold the engine's oil sump.

Oil Pan Gasket

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 59016200
🇲🇽 MX
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ELRING Fits: 1.8L L4 Turbocharged 398260
🇲🇽 MX
Attraction
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 06K103649J
🇲🇽 MX
View on
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VICTOR REINZ Fits: 1.8L L4 Turbocharged 711083500
🇲🇽 MX
ACM (Polyacrylate)
Fitment notes — VICTOR REINZ 711083500
ACM (Polyacrylate)
Replaces OE Part Number(s) 06K103649J
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This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Oil Pump Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 332970
🇲🇽 MX
Engine SidedAttraction
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ELRING Fits: 1.8L L4 Turbocharged 245730
🇲🇽 MX
frontal sidedAttraction
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This table covers the gaskets that seal the Oil Pump. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Piston Ring

Brand Part Number Markets Notes Buy
HASTINGS MANUFACTURING Fits: 1.8L L4 Turbocharged 2N5385S
🇲🇽 MX
1 Cylinder SetTop Groove: 1.20 mm
Fitment notes — HASTINGS MANUFACTURING 2N5385S
1 Cylinder SetTop Groove: 1.20 mm2nd Groove: 1.20 mm1st Oil Groove: 2.00 mmFor 2 Ring PistonNitride Top Ring
Engine. Bore (in.): 3.346Top Groove: 1.50 mm2nd Groove: 1.50 mm1st Oil Groove: 4.00 mmTop Ring Surface Treatment: Chrome
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HASTINGS MANUFACTURING Fits: 1.8L L4 Turbocharged 2N5385
🇲🇽 MX
Full SetTop Groove: 1.20 mm or 1.50 mm
Fitment notes — HASTINGS MANUFACTURING 2N5385
Full SetTop Groove: 1.20 mm or 1.50 mmTop Ring Surface Treatment: Nitride or Chrome2nd Groove: 1.20 mm or 1.50 mm1ST Oil Groove: 2.00 mm or 4.00 mmfor 2 Ring Piston
Engine. Bore (in.): 3.346
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This table covers the rings that seal each piston to the cylinder wall.

Rocker Arm

Brand Part Number Markets Notes Buy
INA Fits: 1.8L L4 Turbocharged VR0119
🇲🇽 MX
Intakewith CNSB Engine
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This table covers the rocker arms that transfer cam motion to the valves.

Timing Belt & Component Kit

Brand Part Number Markets Notes Buy
GMB Fits: 1.8L L4 Turbocharged 34800923
🇲🇽 MX
Includes Water Pump
Fitment notes — GMB 34800923
Includes Water Pump
Includes Toothed Water Pump Drive Belt
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This table covers the Timing Belt & component kits.

Timing Chain & Component Kit

Brand Part Number Markets Notes Buy
DANSK Fits: 1.8L L4 Turbocharged 1112501800
🇲🇽 MX
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This table covers kits that group a timing chain with the related tensioners and guides.

Timing Chain Tensioner

Brand Part Number Markets Notes Buy
ÜRO PARTS Fits: 1.8L L4 Turbocharged 06K109467K
🇲🇽 MX
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This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage.

Timing Cover

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 231851
🇲🇽 MX
with Crankshaft Seal
Fitment notes — ELRING 231851
with Crankshaft Seal
Attraction
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ÜRO PARTS Fits: 1.8L L4 Turbocharged 06K109210AF
🇲🇽 MX
Lower
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This table covers the Timing covers.

Timing Cover Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 302690
🇲🇽 MX
Cylinder HeadAttraction
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ELRING Fits: 1.8L L4 Turbocharged 268000
🇲🇽 MX
Cylinder HeadAttraction
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ELRING Fits: 1.8L L4 Turbocharged 872370
🇲🇽 MX
Attraction
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This table covers the gaskets that seal the Timing Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Turbocharger

Brand Part Number Markets Notes Buy
GPD Fits: 1.8L L4 Turbocharged 2511633
🇲🇽 MX
Original Equipment (OE) Specifications
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This table covers the turbochargers that compress intake air.

Turbocharger Boost Solenoid

Brand Part Number Markets Notes Buy
ÜRO PARTS Fits: 1.8L L4 Turbocharged 06H906283J
🇲🇽 MX
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This table covers the Turbocharger Boost solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.

Turbocharger Diverter / Bypass Valve

Brand Part Number Markets Notes Buy
ÜRO PARTS Fits: 1.8L L4 Turbocharged 06H145710D
🇲🇽 MX
Cut-Off Valve
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This table covers the Turbocharger Diverter / Bypass valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.

Turbocharger Gasket

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged JTC11717
🇲🇽 MX
Mounting Gasket Set
Fitment notes — AJUSA JTC11717
Mounting Gasket Set
Engine # CJSA,CJSB,CNSB
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ELRING Fits: 1.8L L4 Turbocharged 006060
🇲🇽 MX
Inner Diameter [MM]: 56
Fitment notes — ELRING 006060
Inner Diameter [MM]: 56
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 268402
🇲🇽 MX
Inner Diameter [MM]: 44
Fitment notes — ELRING 268402
Inner Diameter [MM]: 44
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 847040
🇲🇽 MX
Inner Diameter [MM]: 65
Fitment notes — ELRING 847040
Inner Diameter [MM]: 65
Attraction
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This table covers the gaskets that seal the Turbocharger. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Turbocharger Mounting Hardware

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 793230
🇲🇽 MX
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Fitment notes — ELRING 793230
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 570870
🇲🇽 MX
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Fitment notes — ELRING 570870
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 877100
🇲🇽 MX
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Fitment notes — ELRING 877100
with gaskets/sealswith Mounting Manual,with Bolts/Screws
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 100090
🇲🇽 MX
with gaskets/sealswith Bolts/Screws
Fitment notes — ELRING 100090
with gaskets/sealswith Bolts/Screwsfor OE Number: 2554592
Attraction
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This table covers the fasteners that mount the turbocharger.

Turbocharger Oil Line

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged OP10639
🇲🇽 MX
Engine # CJSA, CJSB, CNSBSupply Tube
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DORMAN Fits: 1.8L L4 Turbocharged 667428
🇲🇽 MX
Return
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SUNSONG Fits: 1.8L L4 Turbocharged 5804226
🇲🇽 MX
Return
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This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early.

Turbocharger Oil Line Gasket / O-Ring

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 245830
🇲🇽 MX
Mounting Bores Distance [MM]: 38
Fitment notes — ELRING 245830
Mounting Bores Distance [MM]: 38
Attraction
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This table covers the Turbocharger Oil Line Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.

Valve Cover Gasket

Brand Part Number Markets Notes Buy
AJUSA Popular Fits: 1.8L L4 Turbocharged 75000400
🇲🇽 MX
Engine CJSA, CJSB, CNSB
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ELRING Popular Fits: 1.8L L4 Turbocharged 461682
🇲🇽 MX
Available as universal article as well, See article No.: 461.682 EL-LIQ 74Material: Zinc-Copper brazing alloy (ZN-CU)
Fitment notes — ELRING 461682
Available as universal article as well, See article No.: 461.682 EL-LIQ 74Material: Zinc-Copper brazing alloy (ZN-CU)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 374000
🇲🇽 MX
Material: Polyacrylate Rubber (ACM)
Fitment notes — ELRING 374000
Material: Polyacrylate Rubber (ACM)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 330200
🇲🇽 MX
Material: Polyacrylate Rubber (ACM)
Fitment notes — ELRING 330200
Material: Polyacrylate Rubber (ACM)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 982110
🇲🇽 MX
Material: Zinc-Copper brazing alloy (ZN-CU)
Fitment notes — ELRING 982110
Material: Zinc-Copper brazing alloy (ZN-CU)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 982100
🇲🇽 MX
Material: Zinc-Copper brazing alloy (ZN-CU)
Fitment notes — ELRING 982100
Material: Zinc-Copper brazing alloy (ZN-CU)
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 471650
🇲🇽 MX
Material: Metaloseal
Fitment notes — ELRING 471650
Material: Metaloseal
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 793630
🇲🇽 MX
Material: Metaloseal
Fitment notes — ELRING 793630
Material: Metaloseal
Attraction
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This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Valve Cover Grommet

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 035450
🇲🇽 MX
Attraction
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This table covers the Valve Cover grommets.

Valve Guide

Brand Part Number Markets Notes Buy
ENGINETECH Fits: 1.8L L4 Turbocharged GD3027
🇲🇽 MX
Bronze
Fitment notes — ENGINETECH GD3027
Bronze
.2362 X .4355 X 1.504"Plain ID
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This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering.

Valve Lifter

Brand Part Number Markets Notes Buy
AJUSA Fits: 1.8L L4 Turbocharged 85009000
🇲🇽 MX
Engine # CJSA,CJSB,CNSB
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This table covers the lifters / tappets that transfer cam motion to the valves.

Valve Stem Seal

Brand Part Number Markets Notes Buy
ELRING Popular Fits: 1.8L L4 Turbocharged 724590
🇲🇽 MX
Colour: BlackHeight [MM]: 9,3
Fitment notes — ELRING 724590
Colour: BlackHeight [MM]: 9,3Material: FPM (fluoride rubber)Outer Diameter [MM]: 12,2
Attraction
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AJUSA Fits: 1.8L L4 Turbocharged 57042000
🇲🇽 MX
Engine CJSA,CJSB,CNSB
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ELRING Fits: 1.8L L4 Turbocharged 308610
🇲🇽 MX
Height [MM]: 10,3Material: FPM (fluoride rubber)
Fitment notes — ELRING 308610
Height [MM]: 10,3Material: FPM (fluoride rubber)Outer Diameter [MM]: 11Outside Diameter: 11.0 mm
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 302890
🇲🇽 MX
Height [MM]: 9,7Thickness: 9.7 mm
Fitment notes — ELRING 302890
Height [MM]: 9,7Thickness: 9.7 mm
Attraction
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ELRING Fits: 1.8L L4 Turbocharged 235610
🇲🇽 MX
SetMaterial: FPM (fluoride rubber)
Fitment notes — ELRING 235610
SetMaterial: FPM (fluoride rubber)Valve Stem Diameter [MM]: 6
Attraction
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This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Variable Valve Timing (VVT) Solenoid Gasket / Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 1.8L L4 Turbocharged 332730
🇲🇽 MX
Material: ACM (Polyacrylate)
Fitment notes — ELRING 332730
Material: ACM (Polyacrylate)
Cylinder Head, Transmission SidedAttractionAdjuster Seal
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ELRING Fits: 1.8L L4 Turbocharged 732692
🇲🇽 MX
Cylinder Head, Transmission SidedAttraction
Fitment notes — ELRING 732692
Cylinder Head, Transmission SidedAttractionAdjuster Seal
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This table covers the seals at the Variable Valve Timing (VVT) Solenoid Gasket. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Buying Engine Parts for a 2018 Audi A3

On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.

  • Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Crankshaft Seal and Valve Cover Gasket .

Frequently Asked Questions

How many engine parts fit the 2018 Audi A3?

Our catalog currently lists 140 engine parts for the 2018 Audi A3 across 53 subcategories and 25 brands, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.

Do engine parts differ between 2018 Audi A3 engines?

Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of engine problems on a 2018 Audi A3?

Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What oil viscosity is listed for the 2018 Audi A3?

Oil rows on this page include SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.

What should I replace at the same time?

Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Audi A3 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2018 Audi A3?

First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2018 Audi A3

Engine Parts for Other Audi A3 Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.