2021 Honda Civic Automatic Transmission Parts

This table covers the vents on a transmission or axle housing. Read more

One part is listed for the 2021 Honda Civic — DORMAN 14161.

This table covers the replacement filters for this application — the table heading and notes say which circuit. 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

10 Filter parts for the 2021 Honda Civic come from 5 brands — VARIOUS MFR, BECK/ARNLEY, VAICO and 2 other brands. The "Popular" part is BECK/ARNLEY 0440383.

The Economy section lists 3 options from VARIOUS MFR — the catalog's value-priced group. VARIOUS MFR PT99442 is listed in this group.

In the Standard Replacement grade, BECK/ARNLEY, VAICO and ATP supply 6 parts: built to original-equipment specification. A representative part number is BECK/ARNLEY 0440383.

1 further part sits outside the graded sections, with the same engine-level match.

This table covers the heat exchangers that cool transmission fluid. Typical signs include fluid that overheats, a leak at the cooler fittings, or milky fluid that says coolant and ATF have mixed. Flush the lines when you replace a cooler. Cross-contamination is how a small leak becomes a transmission job. Read more

3 Fluid Cooler parts for the 2021 Honda Civic come from 2 brands — ACKOJA and DORMAN.

This group includes ACKOJA A26600007, ACKOJA A26600008 and DORMAN 918485.

This table covers the pans that hold automatic-transmission fluid. Read more

4 Fluid Pan parts are listed for the 2021 Honda Civic, from AUTOTECNICA, DORMAN and SPECTRA PREMIUM.

Listed part numbers: AUTOTECNICA HA1223468, AUTOTECNICA HA1223659 and DORMAN 265894, plus the other parts above.

This table covers the gaskets that seal the Fluid Pan. 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 Fluid Pan Gasket parts for the 2021 Honda Civic come from 2 brands — FEL-PRO and VAICO.

Part numbers include FEL-PRO TOS18791 and VAICO V260297.

This table covers the governors and modulators that control transmission shift pressure. Read more

This group shows a single part: DORMAN 926428.

This table covers the seals at the Output Shaft. 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 Output Shaft Seal parts for the 2021 Honda Civic come from 2 brands — SKF and WJB / INMOTION PARTS.

Listed part numbers: SKF 16550A and WJB / INMOTION PARTS WS16550A.

This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid. Read more

13 Transmission Fluid parts for the 2021 Honda Civic come from 6 brands — VALVOLINE, IDEMITSU, LIQUI MOLY and 3 other brands. The "Popular" part is VALVOLINE 804751.

In the CVT grade, VALVOLINE, IDEMITSU, LUBEGARD and 1 other brand supply 7 parts: grouped under the catalog's "CVT" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 804751.

The Multi-Vehicle section lists 5 options from VALVOLINE and LIQUI MOLY — grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. VALVOLINE VV3246 is listed in this group.

The ZF Fluid section lists 1 option from ZF — grouped under the catalog's "ZF Fluid" designation — the notes column spells out what sets them apart. ZF 5961308626 is listed in this group.

This table covers the conditioners and additives used with this transmission fluid. Read more

This group shows a single part: LUBEGARD 67010.

This table covers the mounts that hold the transmission 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

8 Transmission Mount parts are listed for the 2021 Honda Civic, from ANCHOR, DEA / MARMON RIDE CONTROL, WESTAR and 2 other brands. ANCHOR 10038 carries the "Popular" badge.

Economy: 1 part, from SKP. A representative part number is SKP SKM99520.

The Standard Replacement section: 4 options from ANCHOR, BECK/ARNLEY, DEA / MARMON RIDE CONTROL and 1 other brand. ANCHOR 10038 is listed in this group.

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

This group includes ANCHOR 10038, SKP SKM99520 and BECK/ARNLEY 1042441 and the remaining parts above.