2021 Polestar Polestar 1 Engine Parts

This table covers the seals at each camshaft end. 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 15111000.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 54276300.

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

2 Crankshaft Seal parts for the 2021 Polestar Polestar 1 come from AJUSA.

Listed part numbers: AJUSA 15012500 and AJUSA 15110800.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 81068200.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 10229200.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 52589300.

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 2021 Polestar Polestar 1 — AJUSA 50537600.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 13281000.

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

5 Oil parts for the 2021 Polestar Polestar 1 come from 3 brands — LIQUI MOLY, LUCAS OIL and VALVOLINE. The "Popular" part is LIQUI MOLY 20200.

Part numbers include LIQUI MOLY 20200, LIQUI MOLY 20198 and LUCAS OIL 10564, 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

This group shows a single part: VEMO V95600024.

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

This group shows a single part: REIN HWU0111.

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

One part is listed for the 2021 Polestar Polestar 1 — AJUSA 22008700.

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

10 Oil Filter parts for the 2021 Polestar Polestar 1 come from 9 brands — WIX, FVP, PRO-TEC and 6 other brands. The "Popular" part is MANN HU8014Z.

The Economy section lists 3 options from FVP, PRO-TEC and ULTRA-POWER — the catalog's value-priced group. FVP G0241 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 M1C260A is listed in this group.

In the Standard Replacement grade, MANN, WIX, HENGST and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is MANN HU8014Z.

This table covers the Oil Filter covers. Read more

One part is listed for the 2021 Polestar Polestar 1 — VAICO V950654.

This table covers the gaskets that seal the Supercharger. 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 Supercharger Gasket parts for the 2021 Polestar Polestar 1 come from AJUSA.

Part numbers include AJUSA 01550100, AJUSA 01550200 and AJUSA 01550300.

This table covers the Torque Strut mounts. 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

One part is listed for the 2021 Polestar Polestar 1 — DEA / MARMON RIDE CONTROL A70013.

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

This group shows a single part: BORG-WARNER 18559880018.

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 2021 Polestar Polestar 1 — AJUSA JTC12388.

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 OP11069.

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

3 Valve Stem Seal parts for the 2021 Polestar Polestar 1 come from AJUSA.

Listed part numbers: AJUSA 12038800, AJUSA 12038900 and AJUSA 57079400.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

2 Variable Valve Timing (VVT) Sprocket parts for the 2021 Polestar Polestar 1 come from VAICO.

This group includes VAICO V950698 and VAICO V950699.