2021 Audi TT Engine Parts

This table covers the seals at the Balance 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. Read more

One part is listed for the 2021 Audi TT — MAHLE / CLEVITE 68079.

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. Read more

2 Camshaft Seal parts for the 2021 Audi TT come from AJUSA.

This group includes AJUSA 01164900 and AJUSA 01567100.

This table covers the Connecting Rod bolts. Read more

This group shows a single part: ELRING 038970.

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. Read more

AJUSA supplies both parts for the 2021 Audi TT.

Listed part numbers: AJUSA 54295500 and AJUSA 54295100.

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. Read more

9 Crankshaft Seal parts for the 2021 Audi TT come from 5 brands — ELRING, AJUSA, MAHLE / CLEVITE and 2 other brands. The "Popular" part is ELRING 798660.

Listed part numbers: ELRING 798660, AJUSA 15084000 and AJUSA 71012600, plus the other parts above.

This table covers the Crankshaft Seal covers. Read more

One part is listed for the 2021 Audi TT — DORMAN 635696.

This table covers the bolts that clamp the cylinder head to the block. Read more

3 Cylinder Head Bolt parts are listed for the 2021 Audi TT, from AJUSA and ELRING.

Part numbers include AJUSA 81077400, AJUSA 81068900 and ELRING 112130.

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. Read more

6 Cylinder Head Gasket parts are listed for the 2021 Audi TT, from AJUSA, APEX, FEL-PRO and 2 other brands. APEX AHG947 carries the "Popular" badge.

Listed part numbers: APEX AHG947, AJUSA 10202800 and AJUSA 10230100, plus the other parts above.

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. Read more

AJUSA supplies both parts for the 2021 Audi TT.

This group includes AJUSA 52550700 and AJUSA 52549700.

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. Read more

AJUSA supplies both parts for the 2021 Audi TT.

This group includes AJUSA 50504600 and AJUSA 50503600.

This table covers the followers that drive a mechanical fuel pump off the camshaft. Read more

One part is listed for the 2021 Audi TT — ASTEMO / HITACHI HCF3057.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

2 Harmonic Balancer parts are listed for the 2021 Audi TT, from DAYCO and VAICO.

This group includes DAYCO PB1721N and VAICO V105424.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

This group shows a single part: VAICO V108485.

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. Read more

5 Intake Manifold Gasket parts are listed for the 2021 Audi TT, from AJUSA, ELRING, FEL-PRO and 1 other brand.

This group includes AJUSA 13245500, AJUSA 13283200 and ELRING 297590 and the remaining parts above.

This table covers the Intake Manifold nuts. Read more

One part is listed for the 2021 Audi TT — REIN HWB0103.

This table covers the gaskets that seal the Intake Plenum. 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. Read more

This group shows a single part: AJUSA 13237700.

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. Read more

This group shows a single part: ELRING 299640.

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. Read more

6 Motor Mount parts for the 2021 Audi TT come from 2 brands — ANCHOR and PIONEER. The "Popular" part is ANCHOR 9919. 5 parts fit every engine; the other 1 is engine-specific.

This group includes ANCHOR 9919, ANCHOR 9918 and ANCHOR 10393 and the remaining parts above.

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. Read more

21 Oil parts for the 2021 Audi TT come from 5 brands — PENTOSIN, LIQUI MOLY, VALVOLINE and 2 other brands. The "Popular" part is LIQUI MOLY 20238. 4 parts fit every engine; the other 17 are engine-specific.

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. Read more

3 Oil Cooler parts for the 2021 Audi TT come from 3 brands — DORMAN, HELLA and NISSENS.

This group includes DORMAN 918985, HELLA 366360581 and NISSENS 90914.

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. Read more

3 Oil Cooler Gasket parts are listed for the 2021 Audi TT, from ELRING, FEL-PRO and MAHLE / CLEVITE.

Part numbers include ELRING 279610, FEL-PRO 73305 and MAHLE / CLEVITE B33478.

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. Read more

One part is listed for the 2021 Audi TT — DORMAN 926601.

This table covers the seals at the Oil Dipstick / Tube. 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. Read more

One part is listed for the 2021 Audi TT — FEL-PRO 73668.

This table covers the drain plugs in the oil pan. Read more

8 Oil Drain Plug parts for the 2021 Audi TT come from 5 brands — REIN, ELRING, DORMAN and 2 other brands. The "Popular" part is DORMAN 090090.

Part numbers include DORMAN 090090, ELRING 858050 and ELRING 858040, among others listed above.

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. Read more

6 Oil Drain Plug Gasket parts are listed for the 2021 Audi TT, from DORMAN, ELRING, FEL-PRO and 2 other brands. DORMAN 095147 carries the "Popular" badge.

This group includes DORMAN 095147, DORMAN 995147CD and ELRING 591840 and the remaining parts above.

This table covers the Oil Drain Plug Removal tools. This is a service tool, not a wear part — match the application in the notes. Read more

This group shows a single part: DORMAN 090999.

This table covers the caps on the oil filler neck. Read more

This group shows a single part: REIN CPL0046.

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. Read more

39 Oil Filter parts for the 2021 Audi TT come from 17 brands — WIX, CHAMP / LUBER-FINER, FRAM and 14 other brands. The "Popular" part is PRO-TEC PXL57187. They are grouped as Economy, High Performance / Heavy Duty and Standard Replacement, with Standard Replacement the largest group at 21 parts from HASTINGS / BALDWIN, HENGST, MANN and 9 other brands.

This table covers the Oil Filter Adapter 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. Read more

3 Oil Filter Adapter Gasket / O-Ring parts are listed for the 2021 Audi TT, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.

Part numbers include FEL-PRO 76367, MAHLE / CLEVITE B33479 and VICTOR REINZ 713756900.

This table covers the Oil Filter covers. Read more

9 Oil Filter Cover parts are listed for the 2021 Audi TT, from VAICO, DORMAN, MOTORAD and 2 other brands. DORMAN 921169 carries the "Popular" badge. 1 part fits every engine; the other 8 are engine-specific.

Listed part numbers: DORMAN 921169, DORMAN 921171 and MOTORAD MO319, plus the other parts above.

This table covers the Oil Filter housings. Read more

One part is listed for the 2021 Audi TT — HENGST H816H.

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. Read more

This group shows a single part: ELRING 279630.

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. Read more

5 Oil Level Sensor parts for the 2021 Audi TT come from 4 brands — VNE, HELLA, ÜRO PARTS and 1 other brand.

Listed part numbers: HELLA 013680091, ÜRO PARTS 03F907660E and VEMO V10721427, plus the other parts above.

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. Read more

This group shows a single part: AJUSA 01899000.

This table covers the oil pans that hold the engine's oil sump. Read more

5 Oil Pan parts are listed for the 2021 Audi TT, from DORMAN, ÜRO PARTS, REIN and 1 other brand. ÜRO PARTS 06K103600RPRM carries the "Popular" badge.

Listed part numbers: ÜRO PARTS 06K103600RPRM, DORMAN 264629 and DORMAN 264889, plus the other parts above.

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. Read more

5 Oil Pan Gasket parts for the 2021 Audi TT come from 4 brands — AJUSA, VICTOR REINZ, ELRING and 1 other brand. The "Popular" part is VICTOR REINZ 703141410. 1 part fits every engine; the other 4 are engine-specific.

Listed part numbers: VICTOR REINZ 703141410, AJUSA 16063100 and AJUSA 59016200, plus the other parts above.

This table covers the Oil pumps. 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. Read more

This group shows a single part: VAICO V10000228.

This table covers the chains that drive the oil pump. Read more

VAICO supplies the 3 Oil Pump Chain parts for the 2021 Audi TT.

This group includes VAICO V105855, VAICO V105855BEK and VAICO V105856.

This table covers the Oil Pump Chain tensioners. 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. Read more

This group shows a single part: INA ZT0273.

This table covers the Oil Pump Control Valve 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. Read more

One part is listed for the 2021 Audi TT — DORMAN 916880.

This table covers the Oil Temperature senders. Read more

One part is listed for the 2021 Audi TT — VEMO V10720210.

This table covers the rocker arms that transfer cam motion to the valves. Read more

This group shows a single part: MELLING MR1349.

This table covers the Timing belts. Typical signs include squeal on cold start, cracked ribs, or glazing. Spin the tensioner and idlers by hand while the belt is off. Read more

One part is listed for the 2021 Audi TT — DAYCO 95352.

This table covers the Timing Belt & component kits. Read more

This group shows a single part: GMB 34800923.

This table covers kits that group a timing chain with the related tensioners and guides. Read more

This group shows a single part: VAICO V1010023.

This table covers the Timing covers. Read more

2 Timing Cover parts are listed for the 2021 Audi TT, from REIN and ÜRO PARTS.

This group includes REIN TCV0137 and ÜRO PARTS 06K103269F.

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. Read more

5 Timing Cover Gasket parts for the 2021 Audi TT come from 3 brands — ELRING, MAHLE / CLEVITE and FEL-PRO. The "Popular" part is MAHLE / CLEVITE JV5175.

This group includes MAHLE / CLEVITE JV5175, ELRING 893790 and ELRING 893820 and the remaining parts above.

This table covers the seals at the Timing Cover. 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. Read more

2 Timing Cover Seal parts for the 2021 Audi TT come from 2 brands — FEL-PRO and SKF.

Part numbers include FEL-PRO TCS46292 and SKF 17708.

This table covers the crankshaft sprockets that drive the timing chain or belt. Read more

2 Timing Crank Sprocket parts for the 2021 Audi TT come from 2 brands — PREFERRED COMPONENTS INC and ÜRO PARTS.

Listed part numbers: PREFERRED COMPONENTS INC G56385 and ÜRO PARTS 06H105209AT.

This table covers the Torque Strut mounts. 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. Read more

5 Torque Strut Mount parts are listed for the 2021 Audi TT, from ANCHOR, DEA / MARMON RIDE CONTROL, VNE and 1 other brand.

Part numbers include ANCHOR 10363, ANCHOR 10326 and DEA / MARMON RIDE CONTROL A4984, among others listed above.

This table covers the turbochargers that compress intake air. Read more

7 Turbocharger parts for the 2021 Audi TT come from 3 brands — GPD, BORG-WARNER and NISSENS.

Part numbers include BORG-WARNER 18559880036, BORG-WARNER 18559880037 and GPD 2511774, among others listed above.

This table covers the Turbocharger Boost 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. Read more

3 Turbocharger Boost Sensor parts are listed for the 2021 Audi TT, from WELLS and HELLA.

In the Economy grade, WELLS supplies 1 part: the catalog's value-priced group. A representative part number is WELLS 5S15727.

The Standard Replacement section lists 1 option from HELLA — built to original-equipment specification. HELLA 358152261 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include WELLS 5S15727, HELLA 358152261 and WELLS 5S13477.

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. Read more

This group shows a single part: ÜRO PARTS 06H906283J.

This table covers the Turbocharger Coolant 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. Read more

3 Turbocharger Coolant Line parts for the 2021 Audi TT come from 2 brands — DORMAN and REIN.

Part numbers include DORMAN 667430, DORMAN 667816 and REIN CHT0783.

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. Read more

3 Turbocharger Diverter / Bypass Valve parts for the 2021 Audi TT come from 3 brands — DORMAN, STANDARD MOTOR PRODUCTS and VEMO. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L5 Turbocharged.

Part numbers include DORMAN 911240, STANDARD MOTOR PRODUCTS TBV1013 and VEMO V10771023.

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. Read more

AJUSA supplies both parts for the 2021 Audi TT.

Part numbers include AJUSA JTC12454 and AJUSA JTC12307.

This table covers the fasteners that mount the turbocharger. Read more

One part is listed for the 2021 Audi TT — ELRING 033070.

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. Read more

7 Turbocharger Oil Line parts for the 2021 Audi TT come from 4 brands — DORMAN, AJUSA, SUNSONG and 1 other brand. The "Popular" part is DORMAN 667428.

This group includes DORMAN 667428, TERREPOWER TO92366 and AJUSA OP10639 and the remaining parts above.

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. Read more

This group shows a single part: AJUSA 01200600.

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. Read more

2 Valve Cover Gasket parts for the 2021 Audi TT come from 2 brands — AJUSA and VICTOR REINZ.

This group includes AJUSA 75000400 and VICTOR REINZ 703141410.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

2 Valve Lifter parts for the 2021 Audi TT come from 2 brands — AJUSA and MELLING.

Listed part numbers: AJUSA 85009000 and MELLING JB7532.

This table covers the keepers that lock each valve-spring retainer to the stem. Read more

One part is listed for the 2021 Audi TT — MELLING VL1098.

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. Read more

2 Valve Stem Seal parts for the 2021 Audi TT come from AJUSA.

This group includes AJUSA 12037600 and AJUSA 57077700.