2020 BMW 420I 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

5 Conversion / Lower Gasket Set parts for the 2020 BMW 420I come from ELRING. The "Popular" part is ELRING 376590.

This group includes ELRING 376590, ELRING 376500 and ELRING 648330 and the remaining parts 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

6 Crankshaft Seal parts are listed for the 2020 BMW 420I, from ELRING and AJUSA. ELRING 575970 carries the "Popular" badge.

Listed part numbers: ELRING 575970, ELRING 492060 and AJUSA 15075200, plus the other parts above.

This table covers the gaskets that seal the Crankshaft Seal. 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 B45970.

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

4 Cylinder Head Bolt parts for the 2020 BMW 420I come from 2 brands — ELRING and AJUSA.

Part numbers include AJUSA 81065000, ELRING 233370 and ELRING 577230, among others listed 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

10 Cylinder Head Gasket parts for the 2020 BMW 420I come from ELRING. The "Popular" part is ELRING 796280.

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

4 Cylinder Head Gasket Set parts for the 2020 BMW 420I come from 2 brands — ELRING and AJUSA.

This group includes AJUSA 52503900, ELRING 456190 and ELRING 444970 and the remaining parts above.

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 50453600.

This table covers the high-pressure oil pumps that fire HEUI diesel injectors. 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

MARELLI supplies both parts for the 2020 BMW 420I.

Part numbers include MARELLI PHP1012 and MARELLI PHP1013.

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

One part is listed for the 2020 BMW 420I — MARELLI CAB501.

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 2020 BMW 420I come from ELRING.

Part numbers include ELRING 593390 and ELRING B14220.

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 are listed for the 2020 BMW 420I, from ANCHOR, DEA / MARMON RIDE CONTROL and PIONEER. ANCHOR 9983 carries the "Popular" badge.

This group includes ANCHOR 9983, DEA / MARMON RIDE CONTROL A4082 and ANCHOR 9972 and the remaining parts above.

This table covers the Motor Mount kits. Read more

One part is listed for the 2020 BMW 420I — ANCHOR 300955.

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

6 Oil Cooler Gasket parts for the 2020 BMW 420I come from 2 brands — ELRING and AJUSA. The "Popular" part is ELRING 367500.

Part numbers include ELRING 367500, ELRING 549303 and AJUSA 77005900, among others listed above.

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: ELRING 748935.

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

4 Oil Drain Plug parts are listed for the 2020 BMW 420I, from ELRING, AGS and DORMAN.

Listed part numbers: AGS ODP00010, DORMAN 090088 and ELRING 455740, plus the other 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

3 Oil Drain Plug Gasket parts for the 2020 BMW 420I come from 2 brands — ELRING and AJUSA.

Listed part numbers: AJUSA 21010400, ELRING 110507 and ELRING 110906.

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

One part is listed for the 2020 BMW 420I — MOTORAD MO156.

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

2 Oil Filter parts are listed for the 2020 BMW 420I, from MOBIL and VARIOUS MFR.

In the High Performance / Heavy Duty grade, MOBIL supplies 1 part: 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 M1C354A.

The Standard Replacement section lists 1 option from VARIOUS MFR — built to original-equipment specification. VARIOUS MFR PO99460EX is listed in this group.

This group includes MOBIL M1C354A and VARIOUS MFR PO99460EX.

This table covers the Oil Filter covers. Read more

3 Oil Filter Cover parts for the 2020 BMW 420I come from 3 brands — DORMAN, MOTORAD and SKP.

Part numbers include DORMAN 921115, MOTORAD MO310 and SKP SK921115.

This table covers the Oil Filter housings. Read more

This group shows a single part: ELRING B34630.

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

One part is listed for the 2020 BMW 420I — ELRING 596640.

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

ELRING supplies the 3 Oil Level Sensor Gasket / O-Ring parts for the 2020 BMW 420I.

This group includes ELRING 351210, ELRING 301540 and ELRING 078500.

This table covers the seals at the Oil Pump. 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 B22120.

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

One part is listed for the 2020 BMW 420I — AJUSA 77090600.

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

7 Turbocharger Gasket parts for the 2020 BMW 420I come from 2 brands — ELRING and AJUSA. The "Popular" part is ELRING 087320.

Listed part numbers: ELRING 087320, ELRING 077420 and AJUSA JTC11993, plus the other parts above.

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

3 Turbocharger Mounting Hardware parts for the 2020 BMW 420I come from ELRING.

This group includes ELRING 259930, ELRING 082220 and ELRING B22350.

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

One part is listed for the 2020 BMW 420I — AJUSA OP10925.

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

4 Turbocharger Oil Line Gasket / O-Ring parts are listed for the 2020 BMW 420I, from ELRING and AJUSA.

This group includes AJUSA 16006101, ELRING 635432 and ELRING 876070 and the remaining parts above.

This table covers the Turbocharger Wastegate Solenoid actuators. 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

One part is listed for the 2020 BMW 420I — DORMAN 667845.

This table covers the Valve covers. Read more

3 Valve Cover parts for the 2020 BMW 420I come from 3 brands — DORMAN, ELRING and SKP.

Part numbers include DORMAN 264772, ELRING B09610 and 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

5 Valve Cover Gasket parts are listed for the 2020 BMW 420I, from ELRING and AJUSA. ELRING 249750 carries the "Popular" badge.

Listed part numbers: ELRING 249750, AJUSA 11140100 and ELRING 597000, plus the other parts above.

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

One part is listed for the 2020 BMW 420I — 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

5 Valve Stem Seal parts are listed for the 2020 BMW 420I, from ELRING and AJUSA. ELRING 308970 carries the "Popular" badge.

Part numbers include ELRING 308970, AJUSA 57067700 and ELRING 539420, among others listed above.