2021 BMW M340I 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

2 Conversion / Lower Gasket Set parts are listed for the 2021 BMW M340I, from AJUSA and ELRING.

This group includes AJUSA 54302500 and ELRING 113340.

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 for the 2021 BMW M340I come from 2 brands — VICTOR REINZ and ELRING. The "Popular" part is ELRING 575970.

Listed part numbers: ELRING 575970, ELRING 586550 and VICTOR REINZ 813700200, plus the other parts above.

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 BMW M340I, from AJUSA, ELRING and VICTOR REINZ.

This group includes AJUSA 81069200, ELRING 794480 and VICTOR REINZ 141226103.

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 BMW M340I, from ELRING, AJUSA and VICTOR REINZ. ELRING 793491 carries the "Popular" badge.

Part numbers include ELRING 793491, ELRING 739501 and AJUSA 10248900, among others listed 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

One part is listed for the 2021 BMW M340I — AJUSA 52635900.

This table covers the Engine covers. Read more

TECHPRO supplies both parts for the 2021 BMW M340I.

Part numbers include TECHPRO BM1228186 and TECHPRO BM1228190.

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

One part is listed for the 2021 BMW M340I — AJUSA 50565600.

This table covers the Harmonic Balancer bolts. Read more

This group shows a single part: 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

3 Intake Manifold Gasket parts are listed for the 2021 BMW M340I, from AJUSA, MAHLE / CLEVITE and VICTOR REINZ.

Part numbers include AJUSA 13313000, MAHLE / CLEVITE MS20642 and VICTOR REINZ 711737500.

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

5 Motor Mount parts for the 2021 BMW M340I come from 2 brands — ANCHOR and WESTAR. The "Popular" part is ANCHOR 10258.

Listed part numbers: ANCHOR 10258, ANCHOR 10260 and ANCHOR 10259, plus the other parts above.

This table covers the Motor Mount kits. Read more

This group shows a single part: 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

7 Oil parts for the 2021 BMW M340I come from 4 brands — LIQUI MOLY, PENTOSIN, MOBIL and 1 other brand. The "Popular" part is LIQUI MOLY 22044.

This group includes LIQUI MOLY 22044, LIQUI MOLY 22046 and LIQUI MOLY 22048 and the remaining parts above.

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 BMW M340I come from 3 brands — NISSENS, REIN and VEMO.

This group includes NISSENS 91359, REIN ECK0273 and VEMO V20600077.

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 BMW M340I, from AJUSA and ELRING.

This group includes AJUSA 77010300, AJUSA 77010400 and ELRING 784680.

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

5 Oil Drain Plug parts for the 2021 BMW M340I come from 4 brands — ELRING, DORMAN, AGS and 1 other brand. The "Popular" part is DORMAN 090088.

Part numbers include DORMAN 090088, AGS ODP00010 and ELRING 455740, 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

3 Oil Drain Plug Gasket parts are listed for the 2021 BMW M340I, from AJUSA, ELRING and VICTOR REINZ.

Part numbers include AJUSA 21010400, ELRING 110507 and VICTOR REINZ 417005800.

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

2 Oil Filler Cap parts for the 2021 BMW M340I come from 2 brands — MOTORAD and VAICO.

Listed part numbers: 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

9 Oil Filter parts for the 2021 BMW M340I come from 9 brands — FVP, PRO-TEC, MOBIL and 6 other brands. The "Popular" part is HENGST E859HD352.

The Economy section lists 2 options from FVP and PRO-TEC — the catalog's value-priced group. FVP G0342 is listed in this group.

The High Performance / Heavy Duty section lists 1 option from MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1C457A is listed in this group.

In the Standard Replacement grade, HENGST, MANN, HASTINGS / BALDWIN and 3 other brands supply 6 parts: built to original-equipment specification. A representative part number is HENGST E859HD352.

Listed part numbers: HENGST E859HD352, FVP G0342 and PRO-TEC PXL10342, plus the other parts above.

This table covers the Oil Filter covers. Read more

2 Oil Filter Cover parts are listed for the 2021 BMW M340I, from MOTORAD and REIN.

Part numbers include MOTORAD MO388 and REIN CPL0070.

This table covers the Oil Filter housings. Read more

3 Oil Filter Housing parts are listed for the 2021 BMW M340I, from DORMAN, HENGST and VEMO.

Part numbers include DORMAN 926453, HENGST H811H and VEMO V20601662.

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 784620.

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

2 Oil Level Sensor Gasket / O-Ring parts for the 2021 BMW M340I come from ELRING.

Listed part numbers: ELRING 351210 and ELRING 078500.

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

REIN supplies both parts for the 2021 BMW M340I.

Part numbers include REIN ESK0247 and REIN ESK0249.

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

This group shows a single part: VICTOR REINZ 703141410.

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

2 Oil Pump Chain parts are listed for the 2021 BMW M340I, from CLOYES and VAICO.

Part numbers include CLOYES C530 and VAICO V203921.

This table covers the Oil Pump sprockets. Read more

One part is listed for the 2021 BMW M340I — CLOYES S1172.

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

This group shows a single part: INA VF0241.

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

One part is listed for the 2021 BMW M340I — CLOYES C528.

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

4 Timing Chain & Component Kit parts for the 2021 BMW M340I come from 2 brands — CLOYES and VAICO.

Listed part numbers: CLOYES 90528SAX, CLOYES 90528SA and VAICO V2010026BEK, plus the other parts above.

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

CLOYES supplies the 3 Timing Chain Guide / Damper parts for the 2021 BMW M340I.

Listed part numbers: CLOYES 96180, CLOYES 96181 and CLOYES 96182.

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

This group shows a single part: CLOYES 96179.

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

This group shows a single part: BORG-WARNER 18559880116.

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

2 Turbocharger Coolant Line parts for the 2021 BMW M340I come from REIN.

Listed part numbers: REIN CHT0972 and REIN CHT0971.

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

2 Turbocharger Gasket parts are listed for the 2021 BMW M340I, from AJUSA and ELRING.

Part numbers include AJUSA JTC12750 and ELRING 113510.

This table covers the gaskets that seal the Turbocharger Inlet Hose. 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: ELRING 113670.

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

One part is listed for the 2021 BMW M340I — ELRING 113440.

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

3 Turbocharger Oil Line parts for the 2021 BMW M340I come from 2 brands — REIN and AJUSA.

Part numbers include AJUSA OP11237, REIN TFP0393 and REIN TRP0391.

This table covers the Valve covers. Read more

3 Valve Cover parts are listed for the 2021 BMW M340I, from SKP, ÜRO PARTS and VAICO.

Part numbers include SKP SK743462, ÜRO PARTS 11128691779 and VAICO V204929.

This table covers the Valve Cover Bolt screws. Typical signs include a rounded head, a seeping bleeder, or a fastener that will not hold torque. Do not force a new screw into a stripped hole — repair the thread first. Read more

One part is listed for the 2021 BMW M340I — ÜRO PARTS 11129454322.

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

3 Valve Cover Gasket parts for the 2021 BMW M340I come from 3 brands — AJUSA, ELRING and VICTOR REINZ.

This group includes AJUSA 56080600, ELRING 091010 and VICTOR REINZ 151120501.

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

This group shows a single part: 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 for the 2021 BMW M340I come from 4 brands — ELRING, VICTOR REINZ, AJUSA and 1 other brand. The "Popular" part is ELRING 364500.

Listed part numbers: ELRING 364500, ELRING 660360 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

5 Variable Valve Timing (VVT) Solenoid / Actuator parts for the 2021 BMW M340I come from 5 brands — ÜRO PARTS, GATES, HOLSTEIN and 2 other brands. The "Popular" part is ÜRO PARTS 11367614288.

Part numbers include ÜRO PARTS 11367614288, GATES VVS229 and HOLSTEIN 2VTS0370, 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

One part is listed for the 2021 BMW M340I — AJUSA 01907000.