2025 Honda Civic Engine Parts

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 are listed for the 2025 Honda Civic, from FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: FEL-PRO BS40535 and MAHLE / CLEVITE 68080.

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

3 Cylinder Head Gasket parts for the 2025 Honda Civic come from FEL-PRO.

Listed part numbers: FEL-PRO 26840PT, FEL-PRO 26912PT and FEL-PRO 26776PT.

This table covers the Engine covers. Read more

This group shows a single part: TECHPRO HO1228169.

This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2025 Honda Civic — QUALCAST 1030539.

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: MAHLE / CLEVITE MS20396.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2025 Honda Civic — QUALCAST 1030540.

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

One part is listed for the 2025 Honda Civic — DEA / MARMON RIDE CONTROL A65173.

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

38 Oil parts are listed for the 2025 Honda Civic, from LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands. LIQUI MOLY 22044 carries the "Popular" badge. Grades run from Full Synthetic through High Mileage (>75,000 Miles); Full Synthetic is the most populated section, led by LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands.

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

3 Oil Drain Plug parts are listed for the 2025 Honda Civic, from DORMAN and REIN. All of them fit every engine offered in the 2025 Civic.

Part numbers include DORMAN 090033, DORMAN 090053 and REIN HWU0110.

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

2 Oil Filler Cap parts are listed for the 2025 Honda Civic, from GATES and MOTORAD. All of them fit every engine offered in the 2025 Civic.

This group includes GATES 31284 and MOTORAD MO159.

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

14 Oil Filter parts are listed for the 2025 Honda Civic, from BOSCH, VARIOUS MFR, WIX and 8 other brands. WIX 57356XP carries the "Popular" badge. 11 parts fit every engine; the other 3 are engine-specific.

In the Economy grade, BOSCH, FRAM, FVP and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is BOSCH 72226WS.

In the High Performance / Heavy Duty grade, WIX and MOBIL supply 2 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 WIX 57356XP.

The Standard Replacement section lists 7 options from BOSCH, WIX, BECK/ARNLEY and 4 other brands — built to original-equipment specification. BOSCH 3323 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 B33713.

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

One part is listed for the 2025 Honda Civic — INA ZC1891.

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

This group shows a single part: MELLING BG7045.

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

MELLING supplies both parts for the 2025 Honda Civic.

Part numbers include MELLING BT7059 and MELLING BT7057.

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

One part is listed for the 2025 Honda Civic — MAHLE / CLEVITE 68064.

This table covers the Turbocharger Boost sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Turbocharger Boost Sensor parts for the 2025 Honda Civic come from WELLS.

This group includes WELLS 5S15125 and WELLS 5S15759.

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

This group shows a single part: MAHLE / CLEVITE F33463.

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

4 Turbocharger Oil Line parts are listed for the 2025 Honda Civic, from SUNSONG and DORMAN.

Part numbers include DORMAN 667728, SUNSONG 5802170 and SUNSONG 5804143, among others listed above.

This table covers the Turbocharger Wastegate Solenoid 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 2025 Honda Civic — SKP SK6T52372.

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 2025 Honda Civic, from FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: FEL-PRO VS50965R, FEL-PRO VS50975R and MAHLE / CLEVITE VS50884.

This table covers the Valve Spring retainers. Read more

This group shows a single part: MELLING VSR731.

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

This group shows a single part: MELLING VL1060.

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

7 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2025 Honda Civic, from WELLS, STANDARD MOTOR PRODUCTS, GATES and 1 other brand.

Economy: 4 parts, from WELLS and GATES. A representative part number is GATES VVS383.

The Standard Replacement section: 2 options from ACKOJA and STANDARD MOTOR PRODUCTS. ACKOJA A260287 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include GATES VVS383, WELLS 2T1277 and WELLS 2T1275, among others listed above.

This table covers the Variable Valve Timing (VVT) Solenoid filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

One part is listed for the 2025 Honda Civic — GATES VVS920.

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

One part is listed for the 2025 Honda Civic — STANDARD MOTOR PRODUCTS VVT773.