2021 BMW M3 Engine Parts

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

This group shows a single part: AJUSA 54320500.

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

5 Crankshaft Seal parts are listed for the 2021 BMW M3, from VICTOR REINZ and AJUSA. VICTOR REINZ 813700200 carries the "Popular" badge.

This group includes VICTOR REINZ 813700200, AJUSA 15075200 and AJUSA 15107900 and the remaining parts above.

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

3 Cylinder Head Bolt parts for the 2021 BMW M3 come from 3 brands — AJUSA, MAHLE / CLEVITE and VICTOR REINZ.

This group includes AJUSA 81082000, MAHLE / CLEVITE GS33999 and VICTOR REINZ 141308203.

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

2 Cylinder Head Gasket parts for the 2021 BMW M3 come from 2 brands — AJUSA and ELRING.

Listed part numbers: AJUSA 10260600 and ELRING 511091.

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 BMW M3 come from 2 brands — AJUSA and VICTOR REINZ.

This group includes AJUSA 52601200 and VICTOR REINZ 021136501.

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

This group shows a single part: AJUSA 50546600.

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2021 BMW M3 — REIN HWB0074.

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

2 Intake Manifold Gasket parts for the 2021 BMW M3 come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

This group includes MAHLE / CLEVITE MS20465 and VICTOR REINZ 711243900.

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

4 Motor Mount parts are listed for the 2021 BMW M3, from ANCHOR and PIONEER.

Part numbers include ANCHOR 10258, ANCHOR 10259 and PIONEER 610258, among others listed above.

This table covers the Motor Mount kits. Read more

One part is listed for the 2021 BMW M3 — ANCHOR 300959.

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

5 Oil parts are listed for the 2021 BMW M3, from LIQUI MOLY and VALVOLINE. VALVOLINE 787301 carries the "Popular" badge.

Part numbers include VALVOLINE 787301, LIQUI MOLY 22260 and LIQUI MOLY 22261, among others listed above.

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

2 Oil Drain Plug parts are listed for the 2021 BMW M3, from DORMAN and REIN.

Part numbers include DORMAN 090088 and REIN HWU1041.

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

This group shows a single part: AJUSA 21010400.

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

2 Oil Filler Cap parts are listed for the 2021 BMW M3, from MOTORAD and VAICO.

Part numbers include MOTORAD MO214 and VAICO V204688.

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

5 Oil Filter parts are listed for the 2021 BMW M3, from HENGST, MANN, PUROLATOR and 2 other brands. HENGST E258HD379 carries the "Popular" badge.

This group includes HENGST E258HD379, MANN HU6032Z and PUROLATOR PL31791 and the remaining parts above.

This table covers the Oil Filter covers. Read more

This group shows a single part: MOTORAD MO388.

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

One part is listed for the 2021 BMW M3 — VICTOR REINZ 703141410.

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. Read more

This group shows a single part: AJUSA 01835400.

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

3 Turbocharger Gasket parts for the 2021 BMW M3 come from 2 brands — AJUSA and ELRING.

Part numbers include AJUSA 01158200, AJUSA JTC12650 and ELRING 087320.

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

AJUSA supplies both parts for the 2021 BMW M3.

Listed part numbers: AJUSA OP11305 and AJUSA OP11315.

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

One part is listed for the 2021 BMW M3 — AJUSA 01335200.

This table covers the Valve covers. Read more

This group shows a single part: SKP SK743462.

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

One part is listed for the 2021 BMW M3 — AJUSA 11172800.

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

One part is listed for the 2021 BMW M3 — AJUSA 85022300.

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 BMW M3, from AJUSA, VICTOR REINZ and MAHLE / CLEVITE. VICTOR REINZ 123686601 carries the "Popular" badge.

Listed part numbers: VICTOR REINZ 123686601, VICTOR REINZ 123725601 and AJUSA 57051500, 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

6 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2021 BMW M3, from GATES, HOLSTEIN, VEMO and 3 other brands. GATES VVS229 carries the "Popular" badge.

In the Economy grade, GATES, HOLSTEIN, VEMO and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is GATES VVS229.

The Standard Replacement section lists 2 options from STANDARD MOTOR PRODUCTS and NTK — built to original-equipment specification. STANDARD MOTOR PRODUCTS VVT269 is listed in this group.

Part numbers include GATES VVS229, HOLSTEIN 2VTS0370 and VEMO V20540005, among others listed above.

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. Read more

This group shows a single part: AJUSA 01907000.