1974 Fiat 128 Engine Parts

Engine:
1.3L L4

64 Engine parts are listed for the 1974 Fiat 128, in 19 part types, covering the 1.3L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 1974 Fiat 128, 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. 27 parts of the 64 listed are Crankshaft Seal (9 parts), Expansion Plug (9 parts) and Oil Filter (9 parts). The other 16 part types cover the remaining 37 parts.

Camshaft Repair Sleeve

Brand Part Number Markets Notes Buy
NATIONAL 99114
🇺🇸 US 🇨🇦 CA
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SCHAEFFLER SR3463
🇺🇸 US 🇨🇦 CA
11 MM Width35.56 mm Outside Diameter
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SKF 99114
🇺🇸 US 🇨🇦 CA
Shaft Diameter: 1.181 In
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WJB / INMOTION PARTS WS99114
🇺🇸 US 🇨🇦 CA
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This table covers the wear sleeves used to restore a Camshaft seal surface.

Camshaft Seal

Brand Part Number Markets Notes Buy
BCA Popular NS223035
🇺🇸 US 🇨🇦 CA
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NATIONAL Popular 223035
🇺🇸 US 🇨🇦 CA
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AJUSA 15009700
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 15009700
Fits:
SedanBase ModelEngine Code 128A1Clockwis
or:
SedanBase ModelClockwiseEngine 128A1.000
or:
SL ModelClockwise
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ELRING 212458
🇺🇸 US 🇨🇦 CA
SedanBase Model
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ITM ENGINE COMPONENTS 1506303
🇺🇸 US 🇨🇦 CA
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SCHAEFFLER SS2287
🇺🇸 US 🇨🇦 CA
2.05" I:D X 2.05" O.D. X 0.31" Width
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SKF 11640
🇺🇸 US 🇨🇦 CA
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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.

Connecting Rod Bearing

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS CR4099AM
🇺🇸 US 🇨🇦 CA
SetBimetal (Aluminum Base)
Fitment notes — KING ENGINE BEARINGS CR4099AM
SetBimetal (Aluminum Base)
3 Oil Holes - 1 At Center and 2 At 15 Degrees From Center
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MAHLE / CLEVITE CB1332A
🇺🇸 US 🇨🇦 CA
A Series (Aluminum)Pair
Fitment notes — MAHLE / CLEVITE CB1332A
A Series (Aluminum)Pair
(Size: Standard)
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This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 54013500
🇺🇸 US 🇨🇦 CA
Fits SL Modelor SedanBase Model
Fitment notes — AJUSA 54013500
Fits:
SL Modelor SedanBase ModelEngine Code 128A1
or:
SedanBase ModelEngine 128A1.000
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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

Brand Part Number Markets Notes Buy
ITM ENGINE COMPONENTS 5M1442
🇺🇸 US 🇨🇦 CA
Set
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SEALED POWER 4659M
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — SEALED POWER 4659M
Set
(Size: 0.030" Undersize)
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This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Crankshaft Repair Sleeve

Brand Part Number Markets Notes Buy
BCA NS99157
🇺🇸 US 🇨🇦 CA
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NATIONAL 99157
🇺🇸 US 🇨🇦 CA
Front
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SCHAEFFLER SR3483
🇺🇸 US 🇨🇦 CA
FrontFits Shaft Diameters of 1.572"-1.578"
Fitment notes — SCHAEFFLER SR3483
FrontFits Shaft Diameters of 1.572"-1.578"16 MM Width46.99 mm Outside Diameter
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WJB / INMOTION PARTS WS99157
🇺🇸 US 🇨🇦 CA
Front
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This table covers the sleeves used to restore a grooved crankshaft seal surface.

Crankshaft Seal

Brand Part Number Markets Notes Buy
NATIONAL Popular 224025
🇺🇸 US 🇨🇦 CA
Front
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WJB / INMOTION PARTS Popular WS224025
🇺🇸 US 🇨🇦 CA
Front
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AJUSA 15017500
🇺🇸 US 🇨🇦 CA
Fits FrontSedan
Fitment notes — AJUSA 15017500
Fits:
FrontSedanBase ModelEngine Code 128A1Clockwise
or:
FrontSedanBase ModelClockwiseEngine 128A1.000
or:
FrontSL ModelClockwise
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AJUSA 15031000
🇺🇸 US 🇨🇦 CA
Fits RearSedan
Fitment notes — AJUSA 15031000
Fits:
RearSedanBase ModelEngine Code 128A1Counter Clockwise
or:
RearSedanBase ModelCounter ClockwiseEngine 128A1.000
or:
RearSL ModelCounter Clockwise
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ELRING 440780
🇺🇸 US 🇨🇦 CA
Material: ACM (Polyacrylate)Radial Shaft Seal Design: AwithBS
Fitment notes — ELRING 440780
Material: ACM (Polyacrylate)Radial Shaft Seal Design: AwithBSSwirl Type: LD
SedanBase Model
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ELRING 059790
🇺🇸 US 🇨🇦 CA
Material: MVQ (Silicone Elastomer)Swirl Type: RD
Fitment notes — ELRING 059790
Material: MVQ (Silicone Elastomer)Swirl Type: RD
SedanBase Model
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ELRING 325007
🇺🇸 US 🇨🇦 CA
Material: ACM (Polyacrylate)Radial Shaft Seal Design: B
Fitment notes — ELRING 325007
Material: ACM (Polyacrylate)Radial Shaft Seal Design: BSwirl Type: RD
SedanBase Model
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ITM ENGINE COMPONENTS 1506304
🇺🇸 US 🇨🇦 CA
Rear
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SCHAEFFLER SS2642
🇺🇸 US 🇨🇦 CA
Front2.21" O.D. X 0.28" Width
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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.

Cylinder Head Bolt

Brand Part Number Markets Notes Buy
AJUSA 81007100
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 81007100
Fits:
SedanBase ModelEngine Code 128A1with Cylinder Head # 10035540
or:
SedanBase ModelEngine 128A1.000with Cylinder Head # 10035540
or:
SL Modelwith Cylinder Head # 10035540
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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
AJUSA 10035540
🇺🇸 US 🇨🇦 CA
Fits SL Model87 Bore Diameter
Fitment notes — AJUSA 10035540
Fits:
SL Model87 Bore Diameter(1.40) Thicknessor SedanBase ModelEngine Code 128A187 Bore Diameter(1.40) Thicknessor SedanBase Model87 Bore DiameterEngine 128A1.000(1.40) Thickness
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AJUSA 10063200
🇺🇸 US 🇨🇦 CA
Fits SL Model87 Bore Diameter
Fitment notes — AJUSA 10063200
Fits:
SL Model87 Bore Diameter(1.80) Thicknessor SedanBase ModelEngine Code 128A187 Bore Diameter(1.80) Thicknessor SedanBase Model87 Bore DiameterEngine 128A1.000(1.80) Thickness
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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 52022600
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 52022600
Fits:
SedanBase ModelEngine Code 128A1with Cylinder Head # 10035540
or:
SedanBase ModelEngine 128A1.000with Cylinder Head # 10035540
or:
SL Modelwith Cylinder Head # 10035540
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AJUSA 52060100
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 52060100
Fits:
SedanBase ModelEngine Code 128A1with Cylinder Head # 10063200
or:
SedanBase ModelEngine 128A1.000with Cylinder Head # 10063200
or:
SL Modelwith Cylinder Head # 10063200
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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.

Cylinder Repair Sleeve

Brand Part Number Markets Notes Buy
MELLING CSL804
🇺🇸 US 🇨🇦 CA
3/32 IN Wall Thickness
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MELLING CSL904
🇺🇸 US 🇨🇦 CA
1/8 IN Wall Thickness
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This table covers the wear sleeves used to restore a Cylinder seal surface.

Engine Block Heater

Brand Part Number Markets Notes Buy
KAT'S HEATERS 11401
🇺🇸 US 🇨🇦 CA
Freeze Plug Heater
Fitment notes — KAT'S HEATERS 11401
Freeze Plug Heater
Threaded Electrical Plug End40mm400 WattsEasiest Mounting Location: Front RightElement Must Face 6 Oclock Position To Avoid Contact with Engine Wall
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This table covers the block heaters that warm the coolant or oil in cold weather.

Engine Kit Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 50031500
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 50031500
Fits:
SedanBase ModelEngine Code 128A1with Cylinder Head # 10035540
or:
SedanBase ModelEngine 128A1.000with Cylinder Head # 10035540
or:
SL Modelwith Cylinder Head # 10035540
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AJUSA 50068000
🇺🇸 US 🇨🇦 CA
Fits SedanBase Model
Fitment notes — AJUSA 50068000
Fits:
SedanBase ModelEngine Code 128A1with Cylinder Head # 10063200
or:
SedanBase ModelEngine 128A1.000with Cylinder Head # 10063200
or:
SL Modelwith Cylinder Head # 10063200
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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.

Exhaust Valve

Brand Part Number Markets Notes Buy
ITM ENGINE COMPONENTS RX34497
🇺🇸 US 🇨🇦 CA
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This table covers the exhaust valves that let combustion gas out of the cylinder. 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.

Expansion Plug

Brand Part Number Markets Notes Buy
DORMAN Popular 555027
🇺🇸 US 🇨🇦 CA
Nominal Dia.: 38.25mmMetric Dia.
Fitment notes — DORMAN 555027
Nominal Dia.: 38.25mmMetric Dia.38.25mmSteelHeight: 0.570"Open End Dia.: 1.514"
1.50"
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DORMAN Popular 565027
🇺🇸 US 🇨🇦 CA
Nominal Dia.: 38.25mmMetric Dia.
Fitment notes — DORMAN 565027
Nominal Dia.: 38.25mmMetric Dia.38.25mmOpen End Dia.: 1.511"
1.500" Closed End Diameter1-1/2" Brass CupBase Model
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DORMAN 568009
🇺🇸 US 🇨🇦 CA
Standard Size: 1-1/2"Metric Size: 38.5mm
Fitment notes — DORMAN 568009
Standard Size: 1-1/2"Metric Size: 38.5mmMetric Max. Expansion: 38.862mm
1-1/2" Quick Seal CopperBase Model
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MELLING MPE152R
🇺🇸 US 🇨🇦 CA
Steel
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PIONEER PE152R
🇺🇸 US 🇨🇦 CA
Steel
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PIONEER PE152BR
🇺🇸 US 🇨🇦 CA
Brass or Steel
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PIONEER PE152B
🇺🇸 US 🇨🇦 CA
Brass
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QUALCAST 9736
🇺🇸 US 🇨🇦 CA
Steel
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QUALCAST 9736B
🇺🇸 US 🇨🇦 CA
Brass
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This table covers the Expansion 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.

Intake & Exhaust Manifold Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 13040500
🇺🇸 US 🇨🇦 CA
Fits SL Modelor SedanBase Model
Fitment notes — AJUSA 13040500
Fits:
SL Modelor SedanBase ModelEngine Code 128A1
or:
SedanBase ModelEngine 128A1.000
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ELRING 189768
🇺🇸 US 🇨🇦 CA
SedanBase Model
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This table covers the Intake & Exhaust Manifold gasket sets. 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.

Intake Valve

Brand Part Number Markets Notes Buy
ITM ENGINE COMPONENTS RV34496
🇺🇸 US 🇨🇦 CA
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This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. 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.

Oil Filter

Economy

Brand Part Number Markets Notes Buy
VARIOUS MFR Popular PG4670
🇺🇸 US 🇨🇦 CA
Spin-On
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BOSCH 72137WS
🇺🇸 US 🇨🇦 CA
Workshop Oil Filter
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FAMOUS BRAND 85189
🇺🇸 US 🇨🇦 CA
2Bbl
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PUROLATOR L20020
🇺🇸 US 🇨🇦 CA
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular PF53
🇺🇸 US 🇨🇦 CA
Gold / Professional or Gold / Professional DurapackSpin-On
Fitment notes — ACDELCO PF53
Gold / Professional or Gold / Professional DurapackSpin-On
2Bbl
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BOSCH 3402
🇺🇸 US 🇨🇦 CA
Premium Oil Filter
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HASTINGS / BALDWIN LF423
🇺🇸 US 🇨🇦 CA
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VARIOUS MFR PG4670EX
🇺🇸 US 🇨🇦 CA
Extended LifeSpin-On
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WIX 51189
🇺🇸 US 🇨🇦 CA
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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 Pan Gasket

Brand Part Number Markets Notes Buy
AJUSA 14028500
🇺🇸 US 🇨🇦 CA
Fits SL Modelor SedanBase Model
Fitment notes — AJUSA 14028500
Fits:
SL Modelor SedanBase ModelEngine Code 128A1
or:
SedanBase ModelEngine 128A1.000
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ELRING 191965
🇺🇸 US 🇨🇦 CA
SedanBase Model
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ITM ENGINE COMPONENTS 0996301
🇺🇸 US 🇨🇦 CA
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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.

Buying Engine Parts for a 1974 Fiat 128

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.

  • Confirm you have the 1.3L L4 engine — every part on this page is matched to it.
  • 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 Expansion Plug .

Frequently Asked Questions

How many engine parts fit the 1974 Fiat 128?

Our catalog currently lists 64 engine parts for the 1974 Fiat 128 across 19 subcategories and 23 brands, covering the 1.3L L4 engine. Each part is matched to the engine(s) it fits.

What are the signs of engine problems on a 1974 Fiat 128?

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 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 1974 Fiat 128 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 1974 Fiat 128?

Every part on this page is matched to the 1.3L L4 engine. 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 1974 Fiat 128

Engine Parts for Other Fiat 128 Years

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