2021 BMW Z4 Engine Parts

This table covers the Balance Shaft covers. Read more

This group shows a single part: DORMAN 926054.

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

3 Conversion / Lower Gasket Set parts for the 2021 BMW Z4 come from 2 brands — AJUSA and ELRING.

Listed part numbers: AJUSA 54303200, 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

9 Crankshaft Seal parts are listed for the 2021 BMW Z4, from VICTOR REINZ, ELRING, AJUSA and 1 other brand. ELRING 575970 carries the "Popular" badge.

Part numbers include ELRING 575970, AJUSA 15075200 and AJUSA 15107900, among others listed above.

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

4 Cylinder Head Bolt parts for the 2021 BMW Z4 come from 3 brands — AJUSA, ELRING and VICTOR REINZ.

Listed part numbers: AJUSA 81065000, AJUSA 81069200 and ELRING 794480, 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

11 Cylinder Head Gasket parts for the 2021 BMW Z4 come from 5 brands — AJUSA, ELRING, MAHLE / CLEVITE and 2 other brands. The "Popular" part is ELRING 793491.

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

2 Cylinder Head Gasket Set parts for the 2021 BMW Z4 come from AJUSA.

This group includes AJUSA 52563000 and 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

2 Engine Kit Gasket Set parts for the 2021 BMW Z4 come from AJUSA.

This group includes AJUSA 50516100 and AJUSA 50565600.

This table covers the Harmonic Balancer bolts. Read more

One part is listed for the 2021 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

4 Intake Manifold Gasket parts for the 2021 BMW Z4 come from 4 brands — AJUSA, ELRING, MAHLE / CLEVITE and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.

This group includes AJUSA 13313000, ELRING 076500 and MAHLE / CLEVITE MS20642 and the remaining parts above.

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

13 Motor Mount parts are listed for the 2021 BMW Z4, from ANCHOR, ÜRO PARTS, REIN and 3 other brands. ANCHOR 10343 carries the "Popular" badge.

In the Economy grade, ÜRO PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is ÜRO PARTS 22117581617.

The Standard Replacement section lists 4 options from ANCHOR and REIN — built to original-equipment specification. ANCHOR 10343 is listed in this group.

7 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the Motor Mount kits. Read more

One part is listed for the 2021 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 2021 BMW Z4, from LIQUI MOLY, PENTOSIN, MOBIL and 1 other brand. LIQUI MOLY 22044 carries the "Popular" badge. All of them fit every engine offered in the 2021 Z4.

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

5 Oil Cooler parts are listed for the 2021 BMW Z4, from NISSENS, MAHLE / CLEVITE, REIN and 1 other brand.

This group includes MAHLE / CLEVITE CLC362000S, NISSENS 91395 and NISSENS 91359 and the remaining parts above.

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

4 Oil Cooler Gasket parts for the 2021 BMW Z4 come from 2 brands — AJUSA and ELRING.

Part numbers include AJUSA 77031200, AJUSA 77010300 and AJUSA 77010400, among others listed above.

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

5 Oil Drain Plug parts are listed for the 2021 BMW Z4, from ELRING, DORMAN, AGS and 1 other brand. DORMAN 090088 carries the "Popular" badge. 3 parts fit every engine; the other 2 are engine-specific.

Part numbers include DORMAN 090088, AGS ODP00010 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 for the 2021 BMW Z4 come from 3 brands — AJUSA, ELRING and VICTOR REINZ. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include AJUSA 21010400, ELRING 110507 and VICTOR REINZ 417005800.

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

2 Oil Filler Cap parts are listed for the 2021 BMW Z4, from MOTORAD and VAICO. All of them fit every engine offered in the 2021 Z4.

This group includes MOTORAD MO214 and VAICO V204688.

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

25 Oil Filter parts are listed for the 2021 BMW Z4, from WIX, PRO-TEC, FVP and 12 other brands. PRO-TEC PXL10358 carries the "Popular" badge.

Economy: 7 parts, from PRO-TEC, FVP, CHAMP / LUBER-FINER and 2 other brands. A representative part number is PRO-TEC PXL10358.

In the High Performance / Heavy Duty grade, MOBIL and WIX supply 3 parts: 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: 15 options from HENGST, MAHLE / CLEVITE, MANN and 6 other brands. HENGST E859HD352 is listed in this group.

This table covers the Oil Filter Adapter 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

This group shows a single part: MAHLE / CLEVITE B33885.

This table covers the Oil Filter covers. Read more

4 Oil Filter Cover parts for the 2021 BMW Z4 come from 3 brands — MOTORAD, REIN and VAICO.

Listed part numbers: MOTORAD MO373, MOTORAD MO388 and REIN CPL0070, plus the other parts above.

This table covers the Oil Filter housings. Read more

6 Oil Filter Housing parts for the 2021 BMW Z4 come from 4 brands — DORMAN, ÜRO PARTS, HENGST and 1 other brand.

Part numbers include DORMAN 918943, DORMAN 926453 and HENGST H811H, among others listed above.

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 2021 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

3 Oil Level Sensor Gasket / O-Ring parts are listed for the 2021 BMW Z4, from ELRING and AJUSA.

Listed part numbers: AJUSA 01311200, ELRING 351210 and ELRING 078500.

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

3 Oil Pan parts for the 2021 BMW Z4 come from 2 brands — REIN and VAICO.

This group includes REIN ESK0235, REIN ESK0247 and VAICO V204615.

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 2021 BMW Z4 — VICTOR REINZ 703141410.

This table covers the Oil pumps. 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

One part is listed for the 2021 BMW Z4 — VAICO V204981.

This table covers the chains that drive the oil pump. Read more

2 Oil Pump Chain parts for the 2021 BMW Z4 come from 2 brands — CLOYES and VAICO. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: CLOYES C529 and VAICO V203921.

This table covers the Oil Pump sprockets. Read more

This group shows a single part: CLOYES S1172.

This table covers the timing chains that keep the cams in time with the crank. Read more

This group shows a single part: CLOYES C528.

This table covers kits that group a timing chain with the related tensioners and guides. Read more

4 Timing Chain & Component Kit parts are listed for the 2021 BMW Z4, from CLOYES and VAICO. 2 parts fit every engine; the other 2 are engine-specific.

Part numbers include CLOYES 90528SX, CLOYES 90528S and VAICO V2010026BEK, among others listed above.

This table covers the guides and dampers that keep the timing chain on its path. Read more

3 Timing Chain Guide / Damper parts for the 2021 BMW Z4 come from CLOYES.

Part numbers include CLOYES 96180, CLOYES 96181 and CLOYES 96182.

This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

One part is listed for the 2021 BMW Z4 — CLOYES 96179.

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

One part is listed for the 2021 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 the 4 Turbocharger Coolant Line parts for the 2021 BMW Z4.

This group includes REIN CHT0924, REIN CHT0923 and REIN CHT0972 and the remaining parts above.

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

6 Turbocharger Gasket parts for the 2021 BMW Z4 come from 3 brands — AJUSA, ELRING and MAHLE / CLEVITE. 1 part fits every engine; the other 5 are engine-specific.

Listed part numbers: AJUSA 01335100, AJUSA JTC12488 and AJUSA JTC12750, plus the other parts above.

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 2021 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

7 Turbocharger Oil Line parts are listed for the 2021 BMW Z4, from REIN, AJUSA and ÜRO PARTS.

Listed part numbers: AJUSA OP11220, AJUSA OP11237 and REIN TRP0377, plus the other parts above.

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

One part is listed for the 2021 BMW Z4 — AJUSA 16006101.

This table covers the Valve covers. Read more

3 Valve Cover parts for the 2021 BMW Z4 come from 3 brands — SKP, ÜRO PARTS and VAICO. 1 part fits every engine; the other 2 are engine-specific.

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

This table covers the Valve Cover Bolt screws. Typical signs include a rounded head, a seeping bleeder, or a fastener that will not hold torque. Do not force a new screw into a stripped hole — repair the thread first. Read more

This group shows a single part: ÜRO PARTS 11129454322.

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

7 Valve Cover Gasket parts are listed for the 2021 BMW Z4, from AJUSA, APEX, BECK/ARNLEY and 3 other brands.

This group includes AJUSA 11162700, AJUSA 56080600 and APEX AVC984 and the remaining parts above.

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

One part is listed for the 2021 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

12 Valve Stem Seal parts are listed for the 2021 BMW Z4, from AJUSA, MAHLE / CLEVITE, ELRING and 2 other brands. AJUSA 57067700 carries the "Popular" badge.

This table covers the Variable Valve Timing (VVT) Eccentric Shaft 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 2021 BMW Z4 — ÜRO PARTS 11378652738.

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

8 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2021 BMW Z4, from VAICO, VNE, GATES and 3 other brands. GATES VVS229 carries the "Popular" badge. 3 parts fit every engine; the other 5 are engine-specific.

Part numbers include GATES VVS229, HOLSTEIN 2VTS0370 and ÜRO PARTS 11368696446, among others listed 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.