2021 Mazda CX-30 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

This group shows a single part: AJUSA 54210500.

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

AJUSA supplies both parts for the 2021 Mazda CX-30.

This group includes AJUSA 15105400 and AJUSA 15105500.

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

This group shows a single part: AJUSA 81035200.

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

This group shows a single part: AJUSA 10215400.

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 52403400.

This table covers the Engine covers. Read more

6 Engine Cover parts for the 2021 Mazda CX-30 come from 2 brands — TECHPRO and VARIOUS MFR. The "Popular" part is TECHPRO MA1228137.

Part numbers include TECHPRO MA1228137, TECHPRO MA1228134 and TECHPRO MA1228135, among others listed above.

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 50366500.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

2 Harmonic Balancer parts for the 2021 Mazda CX-30 come from 2 brands — ATP and DAYCO.

Part numbers include ATP 102485 and DAYCO PB1819N.

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

This group shows a single part: AJUSA 13261100.

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

3 Motor Mount parts are listed for the 2021 Mazda CX-30, from ANCHOR, DEA / MARMON RIDE CONTROL and WESTAR.

This group includes ANCHOR 10203, DEA / MARMON RIDE CONTROL A4457 and WESTAR EM7523.

This table covers the Motor Mount kits. Read more

One part is listed for the 2021 Mazda CX-30 — ANCHOR 300907.

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

VALVOLINE supplies the 6 Oil parts for the 2021 Mazda CX-30. VALVOLINE VV955 carries the "Popular" badge.

Part numbers include VALVOLINE VV955, VALVOLINE 904564 and VALVOLINE 891678, 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

This group shows a single part: AJUSA 22007000.

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

6 Oil Filter parts are listed for the 2021 Mazda CX-30, from VARIOUS MFR, FVP, PRO-TEC and 2 other brands. MOBIL M1108A carries the "Popular" badge.

In the Economy grade, FVP, PRO-TEC and VARIOUS MFR supply 3 parts: the catalog's value-priced group. A representative part number is FVP R7002.

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 M1108A.

The Standard Replacement section lists 2 options from WIX and VARIOUS MFR — built to original-equipment specification. WIX 57002 is listed in this group.

This group includes MOBIL M1108A, FVP R7002 and PRO-TEC PXL57002 and the remaining parts above.

This table covers the rings that seal each piston to the cylinder wall. Read more

This group shows a single part: HASTINGS MANUFACTURING 2N6037.

This table covers the seals at the Timing Cover. 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 Timing Cover Seal parts are listed for the 2021 Mazda CX-30, from SKF and WJB / INMOTION PARTS.

This group includes SKF 16880A and WJB / INMOTION PARTS WS16880A.

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

4 Torque Strut Mount parts for the 2021 Mazda CX-30 come from 4 brands — ANCHOR, DEA / MARMON RIDE CONTROL, PIONEER and 1 other brand.

Part numbers include ANCHOR 10212, DEA / MARMON RIDE CONTROL A4461 and PIONEER 630212, among others listed above.

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

One part is listed for the 2021 Mazda CX-30 — AJUSA 11137100.

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

One part is listed for the 2021 Mazda CX-30 — AJUSA 85009300.

This table covers the keepers that lock each valve-spring retainer to the stem. Read more

3 Valve Spring Retainer Keeper parts for the 2021 Mazda CX-30 come from 3 brands — ENGINETECH, QUALCAST and SBI.

This group includes ENGINETECH EPF1104, QUALCAST 345024 and SBI 1211104.

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

AJUSA supplies the 3 Valve Stem Seal parts for the 2021 Mazda CX-30.

Part numbers include AJUSA 57070800, AJUSA 12034400 and AJUSA 12034500.