Parts for your 2002 Honda Civic-Oil seals

2002 Honda Civic oil seals: what they are, where they live, and when to sort them

Oil seals are absolutely used on the 2002 Honda Civic. Technical sources including the Honda Civic 2001–2005 Service Manual (D17A engine) and the Honda electronic parts catalogue specify multiple seals: front crankshaft oil seal, rear main (crankshaft) seal, camshaft seal, oil pump seal, and transaxle drive shaft (axle) oil seals for both manual and automatic models. These seals keep engine and gearbox oil in, and dust and water out, so the Civic runs clean and leak‑free.

On a 2002 Civic, the engine is a D17 SOHC unit with a timing belt, so the front crank seal and the single cam seal are behind the timing covers. The rear main seal sits between the engine and gearbox, and the transaxle has a seal where each CV shaft enters. When they harden with age or cop crankcase pressure, they start weeping and you’ll see spots on the driveway or a wet timing cover.

The purpose of these seals is simple but crucial: maintain oil pressure and lubrication, avoid contamination, and stop oil from soaking belts, clutches, or mounts. Left too long, leaks can glaze a clutch (rear main), soften rubber mounts, or make a real mess of the timing area (front crank/cam).

For servicing, oil seals aren’t a routine “every X kilometres” replacement, but they’re smart to tackle during related jobs:

• Timing belt service (typically 100,000–160,000 km, depending on local schedule): replace the cam and front crank seals while access is open.
• Clutch replacement or gearbox-out work: replace the rear main seal