2021 Toyota Corolla Engine Parts

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

One part is listed for the 2021 Toyota Corolla — ELRING 135140.

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. Read more

2 Connecting Rod Bearing parts for the 2021 Toyota Corolla come from TOPLINE.

Part numbers include TOPLINE RBTO55 and TOPLINE RBTO61.

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

6 Conversion / Lower Gasket Set parts for the 2021 Toyota Corolla come from 3 brands — AJUSA, TOPLINE and ELRING.

This group includes AJUSA 54241600, AJUSA 54317900 and AJUSA 54307700 and the remaining parts above.

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. Read more

TOPLINE supplies the 4 Crankshaft Main Bearing parts for the 2021 Toyota Corolla.

Part numbers include TOPLINE TWTO39, TOPLINE MBTO55 and TOPLINE MBTO61, among others listed above.

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

12 Crankshaft Seal parts are listed for the 2021 Toyota Corolla, from AJUSA, ELRING, VICTOR REINZ and 2 other brands. AJUSA 15121900 carries the "Popular" badge.

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

7 Cylinder Head Bolt parts for the 2021 Toyota Corolla come from 6 brands — TOPLINE, AJUSA, BECK/ARNLEY and 3 other brands.

This group includes AJUSA 81078700, BECK/ARNLEY 0161075 and ELRING 590400 and the remaining parts above.

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

12 Cylinder Head Gasket parts for the 2021 Toyota Corolla come from 7 brands — AJUSA, APEX, ELRING and 4 other brands. The "Popular" part is FEL-PRO 26515PT.

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

11 Cylinder Head Gasket Set parts for the 2021 Toyota Corolla come from 5 brands — AJUSA, VICTOR REINZ, ELRING and 2 other brands.

This table covers the Engine covers. Read more

15 Engine Cover parts for the 2021 Toyota Corolla come from 2 brands — TECHPRO and VARIOUS MFR. The "Popular" part is TECHPRO TO1228253. 10 parts fit every engine; the other 5 are engine-specific.

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

9 Engine Kit Gasket Set parts for the 2021 Toyota Corolla come from 4 brands — AJUSA, ELRING, TOPLINE and 1 other brand.

Listed part numbers: AJUSA 50419700, AJUSA 50541900 and AJUSA 50542500, plus the other parts above.

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. Read more

4 Exhaust Valve parts are listed for the 2021 Toyota Corolla, from TOPLINE, MELLING and SBI.

Listed part numbers: MELLING V3366, SBI 13366 and TOPLINE EVTO55, plus the other parts above.

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

8 Harmonic Balancer parts for the 2021 Toyota Corolla come from 5 brands — ULTRA-POWER, ATP, PIONEER and 2 other brands. The "Popular" part is ULTRA-POWER 594705.

Part numbers include ULTRA-POWER 594705, ACKOJA A700938 and ATP 102342, among others listed above.

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

6 Intake Manifold Gasket parts for the 2021 Toyota Corolla come from 5 brands — ELRING, AJUSA, BECK/ARNLEY and 2 other brands.

Part numbers include AJUSA 13316600, BECK/ARNLEY 0376229 and ELRING 298230, among others listed above.

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. Read more

5 Intake Valve parts are listed for the 2021 Toyota Corolla, from TOPLINE, ENGINETECH, MELLING and 1 other brand.

Part numbers include ENGINETECH IM4472, MELLING V3365 and SBI 13365, among others listed above.

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

15 Motor Mount parts are listed for the 2021 Toyota Corolla, from DEA / MARMON RIDE CONTROL, PIONEER, ANCHOR and 1 other brand. ANCHOR 10169 carries the "Popular" badge.

This table covers the Motor Mount kits. Read more

ANCHOR supplies both parts for the 2021 Toyota Corolla.

Listed part numbers: ANCHOR 300927 and ANCHOR 300915.

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

47 Oil parts are listed for the 2021 Toyota Corolla, from VALVOLINE, IDEMITSU, LIQUI MOLY and 3 other brands. LIQUI MOLY 22044 carries the "Popular" badge. They are grouped as Full Synthetic, High Mileage (>75,000 Miles) and Racing, with Full Synthetic the largest group at 38 parts from LIQUI MOLY, VALVOLINE, IDEMITSU and 3 other brands.

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

STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Toyota Corolla. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: STANDARD MOTOR PRODUCTS OCK86 and STANDARD MOTOR PRODUCTS OCK99.

This table covers the Oil Dipstick tubes. Read more

One part is listed for the 2021 Toyota Corolla — DORMAN 9175501.

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

This group shows a single part: BECK/ARNLEY 0396661.

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

7 Oil Drain Plug parts are listed for the 2021 Toyota Corolla, from DORMAN, ELRING, ACKOJA and 2 other brands. DORMAN 090038 carries the "Popular" badge. 4 parts fit every engine; the other 3 are engine-specific.

Part numbers include DORMAN 090038, DORMAN 090049 and ACKOJA A700114, 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 for the 2021 Toyota Corolla come from 6 brands — DORMAN, ULTRA-POWER, APEX and 3 other brands. The "Popular" part is DORMAN 095156. 5 parts fit every engine; the other 1 is engine-specific.

Part numbers include DORMAN 095156 and APEX ADP1902, among others listed above.

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

4 Oil Filler Cap parts are listed for the 2021 Toyota Corolla, from MOTORAD, CALORSTAT and GATES.

This group includes CALORSTAT OC2312, GATES 31285 and MOTORAD MO155 and the remaining parts above.

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

19 Oil Filter parts are listed for the 2021 Toyota Corolla, from VARIOUS MFR, BOSCH, WIX and 11 other brands. VARIOUS MFR PG4476 carries the "Popular" badge. 11 parts fit every engine; the other 8 are engine-specific.

In the Economy grade, VARIOUS MFR, BOSCH, FRAM and 2 other brands supply 6 parts: the catalog's value-priced group. A representative part number is VARIOUS MFR PG4476.

In the High Performance / Heavy Duty grade, MOBIL and WIX supply 2 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is MOBIL M1103A.

The Standard Replacement section lists 11 options from MAHLE / CLEVITE, ACDELCO, WIX and 7 other brands — built to original-equipment specification. ACDELCO PF1233 is listed in this group.

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

2 Oil Filter Adapter Gasket / O-Ring parts for the 2021 Toyota Corolla come from 2 brands — FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: FEL-PRO ES71858 and MAHLE / CLEVITE B33713.

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

One part is listed for the 2021 Toyota Corolla — VEMO V70720463.

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

10 Oil Pan parts for the 2021 Toyota Corolla come from 6 brands — DORMAN, SKP, SPECTRA PREMIUM and 3 other brands. The "Popular" part is AUTOTECNICA TY1415247.

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

3 Oil Pan Gasket parts are listed for the 2021 Toyota Corolla, from APEX, FEL-PRO and VICTOR REINZ. 1 part fits every engine; the other 2 are engine-specific.

This group includes APEX AOP881, FEL-PRO OS30829 and VICTOR REINZ 703141410.

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

5 Oil Pump parts are listed for the 2021 Toyota Corolla, from TOPLINE, AISIN, MELLING and 1 other brand.

This group includes AISIN OPT124, MELLING M584 and PIERBURG 706595110 and the remaining parts above.

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

7 Oil Pump Chain parts for the 2021 Toyota Corolla come from 4 brands — PREFERRED COMPONENTS INC, MELLING, S.A. GEAR and 1 other brand.

The Economy section: 1 option from PREFERRED COMPONENTS INC. PREFERRED COMPONENTS INC C1001 is listed in this group.

The Kit section lists 1 option from PREFERRED COMPONENTS INC — grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. PREFERRED COMPONENTS INC TS10000 is listed in this group.

Standard Replacement: 1 part, from MELLING. A representative part number is MELLING 751.

4 further parts sit outside the graded sections, with the same engine-level match.

Part numbers include PREFERRED COMPONENTS INC C1001, PREFERRED COMPONENTS INC TS10000 and MELLING 751, among others listed above.

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

6 Oil Pump Chain Tensioner parts are listed for the 2021 Toyota Corolla, from MELLING, PREFERRED COMPONENTS INC, CLOYES and 1 other brand.

Part numbers include CLOYES 96157, MELLING BT5936 and MELLING BT7064, among others listed above.

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

This group shows a single part: GATES VVS398.

This table covers the Oil Pump Drive gears. Read more

This group shows a single part: PREFERRED COMPONENTS INC G56125.

This table covers the O-rings that seal the oil-pump pickup tube. 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

One part is listed for the 2021 Toyota Corolla — FEL-PRO 73595.

This table covers the Oil Pump sprockets. Read more

5 Oil Pump Sprocket parts for the 2021 Toyota Corolla come from 4 brands — MELLING, CLOYES, PREFERRED COMPONENTS INC and 1 other brand.