2018 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 are listed for the 2018 BMW 420I, from ELRING and AJUSA. ELRING 376590 carries the "Popular" badge.

Listed part numbers: ELRING 376590, AJUSA 54263900 and ELRING 376500, plus the other 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 for the 2018 BMW 420I come from 2 brands — ELRING and AJUSA. The "Popular" part is ELRING 575970.

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

One part is listed for the 2018 BMW 420I — ELRING B45970.

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

4 Cylinder Head Bolt parts are listed for the 2018 BMW 420I, from ELRING and AJUSA.

Listed part numbers: AJUSA 81065000, ELRING 233370 and ELRING 577230, plus the other 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

ELRING supplies the 8 Cylinder Head Gasket parts for the 2018 BMW 420I. ELRING 796280 carries the "Popular" badge.

This group includes ELRING 796280, ELRING 019321 and ELRING 173021 and the remaining parts 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

5 Cylinder Head Gasket Set parts are listed for the 2018 BMW 420I, from ELRING and AJUSA. ELRING 444970 carries the "Popular" badge.

Part numbers include ELRING 444970, AJUSA 52503900 and ELRING 456190, among others listed 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

One part is listed for the 2018 BMW 420I — AJUSA 50453600.

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

2 Harmonic Balancer parts are listed for the 2018 BMW 420I, from SKP and DORMAN.

In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SK594828.

The Standard Replacement section lists 1 option from DORMAN — built to original-equipment specification. DORMAN 594828 is listed in this group.

This group includes SKP SK594828 and DORMAN 594828.

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

2 High Pressure Diesel Injection Oil Pump (HPOP) parts for the 2018 BMW 420I come from MARELLI.

Listed part numbers: 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

This group shows a single part: 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

ELRING supplies both parts for the 2018 BMW 420I.

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 for the 2018 BMW 420I come from 3 brands — ANCHOR, DEA / MARMON RIDE CONTROL and PIONEER. The "Popular" part is ANCHOR 9983.

Part numbers include ANCHOR 9983, DEA / MARMON RIDE CONTROL A4082 and ANCHOR 9972, among others listed above.

This table covers the Motor Mount kits. Read more

This group shows a single part: ANCHOR 300955.

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

3 Oil parts for the 2018 BMW 420I come from VALVOLINE.

Part numbers include VALVOLINE VV966, VALVOLINE 881166 and VALVOLINE 881050.

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

5 Oil Cooler Gasket parts are listed for the 2018 BMW 420I, from ELRING and AJUSA. ELRING 549303 carries the "Popular" badge.

Part numbers include ELRING 549303, AJUSA 77005900 and AJUSA 77006000, 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

One part is listed for the 2018 BMW 420I — ELRING 748935.

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

4 Oil Drain Plug parts for the 2018 BMW 420I come from 3 brands — ELRING, AGS and DORMAN.

Part numbers include AGS ODP00010, DORMAN 090088 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 2018 BMW 420I, from ELRING and AJUSA.

Part numbers include AJUSA 21010400, ELRING 110507 and ELRING 110906.

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

This group shows a single part: 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

8 Oil Filter parts for the 2018 BMW 420I come from 7 brands — WIX, FVP, PRO-TEC and 4 other brands. The "Popular" part is MAHLE / CLEVITE OX8132D.

The Economy section: 2 options from FVP and PRO-TEC. FVP G0358 is listed in this group.

The High Performance / Heavy Duty section lists 2 options from MOBIL and WIX — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1C354A is listed in this group.

Standard Replacement: 4 parts, from MAHLE / CLEVITE, MANN, VARIOUS MFR and 1 other brand. A representative part number is MAHLE / CLEVITE OX8132D.

Listed part numbers: MAHLE / CLEVITE OX8132D, FVP G0358 and PRO-TEC PXL10358, plus the other parts above.

This table covers the Oil Filter covers. Read more

3 Oil Filter Cover parts are listed for the 2018 BMW 420I, from DORMAN, MOTORAD and SKP.

Listed part numbers: DORMAN 921115, MOTORAD MO310 and SKP SK921115.

This table covers the Oil Filter housings. Read more

One part is listed for the 2018 BMW 420I — 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

This group shows a single part: 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

2 Oil Level Sensor Gasket / O-Ring parts for the 2018 BMW 420I come from ELRING.

Part numbers include ELRING 351210 and ELRING 301540.

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

One part is listed for the 2018 BMW 420I — ELRING B22120.

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

2 Rocker Arm parts for the 2018 BMW 420I come from INA.

Part numbers include INA VR02421 and INA VR02451.

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

This group shows a single part: 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

ELRING supplies the 5 Turbocharger Gasket parts for the 2018 BMW 420I. ELRING 087320 carries the "Popular" badge.

Part numbers include ELRING 087320, ELRING 077420 and ELRING 344890, among others listed above.

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

ELRING supplies the 3 Turbocharger Mounting Hardware parts for the 2018 BMW 420I.

Listed part numbers: ELRING 259930, ELRING 082220 and ELRING B29160.

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

This group shows a single part: 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 for the 2018 BMW 420I come from 2 brands — ELRING and AJUSA.

Listed part numbers: AJUSA 16006101, ELRING 635432 and ELRING 876070, plus the other 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

This group shows a single part: DORMAN 667845.

This table covers the Valve covers. Read more

3 Valve Cover parts are listed for the 2018 BMW 420I, from 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

4 Valve Cover Gasket parts for the 2018 BMW 420I come from 2 brands — ELRING and AJUSA.

This group includes AJUSA 11140100, ELRING 249750 and ELRING 597000 and the remaining parts above.

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

5 Valve Stem Seal parts for the 2018 BMW 420I come from 2 brands — ELRING and AJUSA. The "Popular" part is ELRING 308970.

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