2021 Toyota Tundra Engine Parts

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

This group shows a single part: TOPLINE RBTO50.

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

2 Conversion / Lower Gasket Set parts for the 2021 Toyota Tundra come from 2 brands — AJUSA and TOPLINE.

This group includes AJUSA 54321000 and TOPLINE CBSTO50.

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 both parts for the 2021 Toyota Tundra.

Listed part numbers: TOPLINE TWTO50 and TOPLINE MBTO50.

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

8 Crankshaft Seal parts are listed for the 2021 Toyota Tundra, from AJUSA, MAHLE / CLEVITE, FEL-PRO and 3 other brands. AJUSA 15019600 carries the "Popular" badge.

This group includes AJUSA 15019600, FEL-PRO BS40679 and AJUSA 15060300 and the remaining parts above.

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

2 Cylinder Head Bolt parts for the 2021 Toyota Tundra come from 2 brands — AJUSA and TOPLINE.

This group includes AJUSA 81042100 and TOPLINE HBTO50.

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

10 Cylinder Head Gasket parts for the 2021 Toyota Tundra come from 5 brands — FEL-PRO, AJUSA, APEX and 2 other brands. The "Popular" part is FEL-PRO 26393PT.

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

2 Cylinder Head Gasket Set parts for the 2021 Toyota Tundra come from 2 brands — AJUSA and TOPLINE.

Part numbers include AJUSA 52656900 and TOPLINE HSTO50.

This table covers the Cylinder Head Spacer shims. Read more

2 Cylinder Head Spacer Shim parts for the 2021 Toyota Tundra come from SBI.

This group includes SBI 2302204L and SBI 2302204R.

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

2 Engine Kit Gasket Set parts for the 2021 Toyota Tundra come from 2 brands — AJUSA and TOPLINE.

Part numbers include AJUSA 50583500 and TOPLINE CGSTO50.

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

2 Exhaust Valve parts are listed for the 2021 Toyota Tundra, from SBI and TOPLINE.

Part numbers include SBI 13087 and TOPLINE EVTO50.

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

3 Harmonic Balancer parts for the 2021 Toyota Tundra come from 3 brands — ACKOJA, ATP and DAYCO.

Listed part numbers: ACKOJA A700992, ATP 102416 and DAYCO PB1650N.

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

3 Intake Manifold Gasket parts for the 2021 Toyota Tundra come from 3 brands — AJUSA, FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: AJUSA 13254700, FEL-PRO MS97044 and MAHLE / CLEVITE MS19736.

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

4 Intake Valve parts are listed for the 2021 Toyota Tundra, from MELLING, QUALCAST, SBI and 1 other brand.

Listed part numbers: MELLING V3086, QUALCAST 1013086 and SBI 13086, plus the other parts 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

8 Motor Mount parts are listed for the 2021 Toyota Tundra, from ANCHOR, DEA / MARMON RIDE CONTROL, PIONEER and 1 other brand. ANCHOR 9693 carries the "Popular" badge.

This group includes ANCHOR 9693, ANCHOR 9692 and DEA / MARMON RIDE CONTROL A4267 and the remaining parts above.

This table covers the Motor Mount kits. Read more

4 Motor Mount Kit parts are listed for the 2021 Toyota Tundra, from ANCHOR and WESTAR.

Part numbers include ANCHOR 300151, ANCHOR 300149 and WESTAR ETK087, among others listed 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

30 Oil parts are listed for the 2021 Toyota Tundra, from VALVOLINE, LIQUI MOLY, MOBIL and 2 other brands. LIQUI MOLY 22044 carries the "Popular" badge. Grades run from Full Synthetic through High Mileage (>75,000 Miles); Full Synthetic is the most populated section, led by LIQUI MOLY, VALVOLINE, MOBIL and 2 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

3 Oil Cooler parts are listed for the 2021 Toyota Tundra, from ACKOJA and NISSENS.

Listed part numbers: ACKOJA A70600025, ACKOJA A70600019 and NISSENS 91443.

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

This group shows a single part: MAHLE / CLEVITE GS33926.

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

5 Oil Drain Plug parts are listed for the 2021 Toyota Tundra, from DORMAN, ACKOJA, BECK/ARNLEY and 1 other brand. DORMAN 090038 carries the "Popular" badge.

This group includes DORMAN 090038, ACKOJA A700114 and BECK/ARNLEY 0160116 and the remaining parts 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 Tundra come from 6 brands — DORMAN, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is DORMAN 095156.

This group includes DORMAN 095156, MAHLE / CLEVITE 2051 and APEX ADP1902 and the remaining parts above.

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

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

Listed part numbers: CALORSTAT OC2312, GATES 31285 and MOTORAD MO155.

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

21 Oil Filter parts are listed for the 2021 Toyota Tundra, from CHAMP / LUBER-FINER, FVP, VARIOUS MFR and 13 other brands. MOBIL M1C453A carries the "Popular" badge.

In the Economy grade, CHAMP / LUBER-FINER, FRAM, FVP and 4 other brands supply 8 parts: the catalog's value-priced group. A representative part number is CHAMP / LUBER-FINER P979.

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 M1C453A.

The Standard Replacement section lists 11 options from ACDELCO, WIX, BECK/ARNLEY and 8 other brands — built to original-equipment specification. ACDELCO PF466G is listed in this group.

This table covers the Oil Filter covers. Read more

6 Oil Filter Cover parts for the 2021 Toyota Tundra come from 5 brands — MOTORAD, DORMAN, SKP and 2 other brands. The "Popular" part is DORMAN 917016.

Part numbers include DORMAN 917016, SKP SK917016 and AUTOTECNICA TY1420831, among others listed above.

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

5 Oil Pan parts for the 2021 Toyota Tundra come from 5 brands — SKP, ACKOJA, DORMAN and 2 other brands. The "Popular" part is SKP SK264475.

Part numbers include SKP SK264475, ACKOJA A700987 and DORMAN 264475, among others listed 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

3 Oil Pan Gasket parts are listed for the 2021 Toyota Tundra, from APEX, FEL-PRO and VICTOR REINZ.

This group includes APEX AOP879, FEL-PRO OS30803 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

4 Oil Pump parts are listed for the 2021 Toyota Tundra, from MELLING, SEALED POWER, TOPLINE and 1 other brand.

This group includes MELLING M544, SEALED POWER 22443692 and TOPLINE OPTO50K and the remaining parts above.

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 Tundra — FEL-PRO 73595.

This table covers the Oil Pump repair kits. Read more

This group shows a single part: MELLING K544.

This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo. Read more

This group shows a single part: TOPLINE PATO50L.

This table covers the Piston Pin bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2021 Toyota Tundra — TOPLINE PBH36.

This table covers the rings that seal each piston to the cylinder wall. Read more

This group shows a single part: TOPLINE RSTO50.

This table covers the timing chains that keep the cams in time with the crank. Read more

6 Timing Chain parts for the 2021 Toyota Tundra come from 3 brands — MELLING, PREFERRED COMPONENTS INC and S.A. GEAR. The "Popular" part is MELLING 1026.

Listed part numbers: MELLING 1026, MELLING 1041 and PREFERRED COMPONENTS INC C1145, plus the other parts above.

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

8 Timing Chain & Component Kit parts are listed for the 2021 Toyota Tundra, from PREFERRED COMPONENTS INC, S.A. GEAR, MELLING and 2 other brands. MELLING 31041SX carries the "Popular" badge.

Economy: 4 parts, from PREFERRED COMPONENTS INC and S.A. GEAR. A representative part number is PREFERRED COMPONENTS INC TS21026.

The Standard Replacement section: 4 options from MELLING, ENGINETECH and INA. MELLING 31041SX is listed in this group.

Part numbers include MELLING 31041SX, PREFERRED COMPONENTS INC TS21026 and PREFERRED COMPONENTS INC TS11026, among others listed above.

This table covers the guides and dampers that keep the timing chain on its path. Read more

12 Timing Chain Guide / Damper parts for the 2021 Toyota Tundra come from 3 brands — MELLING, PREFERRED COMPONENTS INC and S.A. GEAR. The "Popular" part is MELLING BG5078.

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. Read more

12 Timing Chain Tensioner parts are listed for the 2021 Toyota Tundra, from MELLING, PREFERRED COMPONENTS INC and S.A. GEAR. MELLING BT5099 carries the "Popular" badge.

This table covers the Timing covers. Read more

This group shows a single part: TOPLINE TCTO50.

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

One part is listed for the 2021 Toyota Tundra — MAHLE / CLEVITE 67860.

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

6 Timing Crank Sprocket parts are listed for the 2021 Toyota Tundra, from MELLING, PREFERRED COMPONENTS INC and S.A. GEAR. MELLING S1283 carries the "Popular" badge.

Listed part numbers: MELLING S1283, MELLING S1314 and PREFERRED COMPONENTS INC G56368, plus the other parts above.

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

9 Valve Cover Gasket parts are listed for the 2021 Toyota Tundra, from VICTOR REINZ, AJUSA, FEL-PRO and 2 other brands. FEL-PRO VS50742R carries the "Popular" badge.

This group includes FEL-PRO VS50742R, MAHLE / CLEVITE VS50568 and AJUSA 56097300 and the remaining parts above.

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. Read more

4 Valve Guide parts are listed for the 2021 Toyota Tundra, from SBI and TOPLINE.

Listed part numbers: SBI 1403135, SBI 1403134 and TOPLINE EVGTO55, plus the other parts above.

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

5 Valve Lifter parts are listed for the 2021 Toyota Tundra, from ULTRA-POWER, MELLING, AJUSA and 2 other brands. MELLING JB7524 carries the "Popular" badge.

Economy: 1 part, from ULTRA-POWER. A representative part number is ULTRA-POWER JB7524.

The Standard Replacement section: 4 options from MELLING, AJUSA, SEALED POWER and 1 other brand. MELLING JB7524 is listed in this group.

Listed part numbers: MELLING JB7524 and AJUSA 85010900, plus the other parts above.

This table covers the Valve seats. Read more

2 Valve Seat parts for the 2021 Toyota Tundra come from SBI.

This group includes SBI SB1288E1 and SBI SB1527E1.

This table covers the Valve Spring retainers. Read more

This group shows a single part: MELLING VSR726.

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

2 Valve Spring Retainer Keeper parts for the 2021 Toyota Tundra come from 2 brands — MELLING and SBI.

Listed part numbers: MELLING VL1100 and SBI 1211100.

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

6 Valve Stem Seal parts are listed for the 2021 Toyota Tundra, from AJUSA, SBI and TOPLINE. SBI 1221266 carries the "Popular" badge.

Listed part numbers: SBI 1221266, SBI 1221282 and AJUSA 12015500, plus the other parts above.

This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

7 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2021 Toyota Tundra, from GATES, HOLSTEIN, WELLS and 4 other brands. NTK VV0027 carries the "Popular" badge.

Economy: 3 parts, from GATES, HOLSTEIN and WELLS. A representative part number is GATES VVS130.

The Standard Replacement section: 4 options from NTK, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 1 other brand. NTK VV0027 is listed in this group.

Listed part numbers: NTK VV0027, GATES VVS130 and HOLSTEIN 2VTS0015, plus the other parts above.

This table covers the Variable Valve Timing (VVT) Solenoid filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

3 Variable Valve Timing (VVT) Solenoid Filter parts are listed for the 2021 Toyota Tundra, from DORMAN, GATES and MELLING.

Listed part numbers: DORMAN 926126, GATES VVS916 and MELLING VCTF2000.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

ACKOJA supplies both parts for the 2021 Toyota Tundra.

This group includes ACKOJA A701013 and ACKOJA A701012.

This table covers the Variable Valve Timing (VVT) Sprocket bolts. Read more

This group shows a single part: CLOYES VCB103.