2025 BMW Z4 Engine Parts

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2025 BMW Z4 — 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

ANCHOR supplies both parts for the 2025 BMW Z4.

This group includes ANCHOR 10258 and ANCHOR 10259.

This table covers the Motor Mount kits. Read more

One part is listed for the 2025 BMW Z4 — ANCHOR 300956.

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

6 Oil parts are listed for the 2025 BMW Z4, from LIQUI MOLY, PENTOSIN and VALVOLINE. LIQUI MOLY 22044 carries the "Popular" badge.

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

2 Oil Cooler parts are listed for the 2025 BMW Z4, from NISSENS and REIN.

Part numbers include NISSENS 91359 and REIN ECK0273.

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

One part is listed for the 2025 BMW Z4 — DORMAN 090088.

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

One part is listed for the 2025 BMW Z4 — 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 are listed for the 2025 BMW Z4, from FVP, PRO-TEC, MOBIL and 5 other brands. HENGST E859HD352 carries the "Popular" badge.

In the Economy grade, FVP and PRO-TEC supply 2 parts: the catalog's value-priced group. A representative part number is FVP G0342.

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 M1C457A.

The Standard Replacement section lists 5 options from HENGST, MANN, HASTINGS / BALDWIN and 2 other brands — built to original-equipment specification. HENGST E859HD352 is listed in this group.

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 for the 2025 BMW Z4 come from 2 brands — MOTORAD and REIN.

Listed part numbers: MOTORAD MO388 and REIN CPL0070.

This table covers the Oil Filter housings. Read more

This group shows a single part: HENGST H811H.

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

One part is listed for the 2025 BMW Z4 — ELRING 351210.

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

This group shows a single part: REIN ESK0247.

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

One part is listed for the 2025 BMW Z4 — 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

REIN supplies both parts for the 2025 BMW Z4.

Listed part numbers: REIN CHT0972 and REIN CHT0971.

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

One part is listed for the 2025 BMW Z4 — ELRING 113670.

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

REIN supplies both parts for the 2025 BMW Z4.

Part numbers include REIN TFP0393 and REIN TRP0391.

This table covers the Valve covers. Read more

This group shows a single part: 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

One part is listed for the 2025 BMW Z4 — MAHLE / CLEVITE SS46008.

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 are listed for the 2025 BMW Z4, from VNE, WELLS and ÜRO PARTS.

Listed part numbers: ÜRO PARTS 11368696446, VNE 4022002 and VNE 4022005, plus the other parts 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.