2023 BMW Z4 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 for the 2023 BMW Z4 come from 2 brands — AJUSA and ELRING.

Listed part numbers: 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

6 Crankshaft Seal parts are listed for the 2023 BMW Z4, from ELRING, AJUSA and VICTOR REINZ. ELRING 575970 carries the "Popular" badge.

Listed part numbers: ELRING 575970, ELRING 586550 and AJUSA 15075200, 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 for the 2023 BMW Z4 come from 3 brands — 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 for the 2023 BMW Z4 come from 3 brands — ELRING, AJUSA and VICTOR REINZ. The "Popular" part is ELRING 793491.

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

This group shows a single part: AJUSA 52635900.

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 50565600.

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2023 BMW Z4 — 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

2 Intake Manifold Gasket parts for the 2023 BMW Z4 come from 2 brands — AJUSA and VICTOR REINZ.

This group includes AJUSA 13313000 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

7 Motor Mount parts are listed for the 2023 BMW Z4, from ANCHOR, PIONEER, WESTAR and 1 other brand. ANCHOR 10258 carries the "Popular" badge.

This group includes ANCHOR 10258, ANCHOR 10259 and DEA / MARMON RIDE CONTROL A70098 and the remaining parts above.

This table covers the Motor Mount kits. Read more

One part is listed for the 2023 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

7 Oil parts are listed for the 2023 BMW Z4, from LIQUI MOLY, PENTOSIN, MOBIL and 1 other brand. LIQUI MOLY 22044 carries the "Popular" badge.

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 are listed for the 2023 BMW Z4, from NISSENS and REIN.

Listed part numbers: NISSENS 91359 and REIN ECK0273.

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 for the 2023 BMW Z4 come from 2 brands — AJUSA and ELRING.

Listed part numbers: AJUSA 77010300, AJUSA 77010400 and ELRING 784680.

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

4 Oil Drain Plug parts are listed for the 2023 BMW Z4, from ELRING, DORMAN and REIN.

Part numbers include DORMAN 090088, ELRING 455740 and ELRING 427210, 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

2 Oil Drain Plug Gasket parts for the 2023 BMW Z4 come from 2 brands — AJUSA and ELRING.

Listed part numbers: AJUSA 21010400 and ELRING 110507.

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

One part is listed for the 2023 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

9 Oil Filter parts are listed for the 2023 BMW Z4, from FVP, PRO-TEC, MOBIL and 6 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 6 options from HENGST, MANN, HASTINGS / BALDWIN and 3 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 2023 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

2 Oil Filter Housing parts for the 2023 BMW Z4 come from 2 brands — DORMAN and HENGST.

This group includes DORMAN 926453 and HENGST H811H.

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 2023 BMW Z4 — 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

ELRING supplies both parts for the 2023 BMW Z4.

Part numbers include ELRING 351210 and ELRING 078500.

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 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

One part is listed for the 2023 BMW Z4 — VICTOR REINZ 703141410.

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

One part is listed for the 2023 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 2023 BMW Z4.

This group includes 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

3 Turbocharger Gasket parts for the 2023 BMW Z4 come from 2 brands — ELRING and AJUSA.

Part numbers include AJUSA JTC12750, ELRING 113510 and ELRING 074140.

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 2023 BMW Z4 — ELRING 113670.

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

This group shows a single part: 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 are listed for the 2023 BMW Z4, from REIN and AJUSA.

Listed part numbers: AJUSA OP11237, REIN TFP0393 and REIN TRP0391.

This table covers the Valve covers. Read more

3 Valve Cover parts for the 2023 BMW Z4 come from 3 brands — SKP, ÜRO PARTS and VAICO.

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

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 are listed for the 2023 BMW Z4, from 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

One part is listed for the 2023 BMW Z4 — 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 are listed for the 2023 BMW Z4, from ELRING, VICTOR REINZ, AJUSA and 1 other brand. ELRING 364500 carries the "Popular" badge.

Part numbers include ELRING 364500, ELRING 660360 and AJUSA 57051500, among others listed 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 are listed for the 2023 BMW Z4, from WELLS, GATES, HOLSTEIN and 1 other brand. GATES VVS229 carries the "Popular" badge.

This group includes GATES VVS229, HOLSTEIN 2VTS0370 and VEMO V20540005 and the remaining 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.