2025 BMW 840I Engine Parts

This table covers the Harmonic Balancer bolts. Read more

This group shows a single part: REIN HWB0074.

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 2025 BMW 840I come from 2 brands — ANCHOR and DEA / MARMON RIDE CONTROL. The "Popular" part is ANCHOR 10258.

This group includes ANCHOR 10258, ANCHOR 10260 and ANCHOR 10259 and the remaining parts above.

This table covers the Motor Mount kits. Read more

This group shows a single part: ANCHOR 300958.

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 2025 BMW 840I come from 4 brands — LIQUI MOLY, PENTOSIN, MOBIL and 1 other brand. The "Popular" part is LIQUI MOLY 22044.

Part numbers include LIQUI MOLY 22044, LIQUI MOLY 22046 and LIQUI MOLY 22048, among others listed 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

2 Oil Cooler parts for the 2025 BMW 840I come from 2 brands — NISSENS and REIN.

This group includes NISSENS 91359 and REIN ECK0273.

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

2 Oil Drain Plug parts for the 2025 BMW 840I come from 2 brands — DORMAN and REIN.

Part numbers include DORMAN 090088 and REIN HWU1041.

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

This group shows a single part: MOTORAD MO214.

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 2025 BMW 840I come from 8 brands — FVP, PRO-TEC, MOBIL and 5 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 2 other brands supply 5 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 2025 BMW 840I, from MOTORAD and REIN.

This group includes MOTORAD MO388 and REIN CPL0070.

This table covers the Oil Filter housings. Read more

One part is listed for the 2025 BMW 840I — HENGST H811H.

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

REIN supplies both parts for the 2025 BMW 840I.

Listed part numbers: REIN ESK0247 and REIN ESK0249.

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

This group shows a single part: GPD 2512001.

This table covers the Turbocharger Boost sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2025 BMW 840I — WELLS 5S14741.

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 2025 BMW 840I 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

One part is listed for the 2025 BMW 840I — GPD 2535112.

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

One part is listed for the 2025 BMW 840I — REIN TRK0024.

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

2 Turbocharger Oil Line parts for the 2025 BMW 840I come from REIN.

Part numbers include REIN TFP0393 and REIN TRP0391.

This table covers the Valve covers. Read more

One part is listed for the 2025 BMW 840I — SKP SK743462.

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

This group shows a single part: MAHLE / CLEVITE SS46008.

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 2025 BMW 840I — AJUSA 01907000.