Parts for your 2007 Honda Accord-Oil seals

2007 Honda Accord oil seals — what they do and when to replace them

Oil seals are absolutely fitted to the 2007 Honda Accord. Honda’s 2003–2007 Accord Service Manual and the official Honda genuine parts catalogue list multiple engine and transmission oil seals for both the 2.4‑litre i‑VTEC four and the 3.0‑litre V6. These include the front and rear crankshaft oil seals, camshaft oil seals (engine‑dependent), and transmission/differential output shaft (drive axle) oil seals, among others.

On this Accord, oil seals keep engine and transmission lubricants where they belong while allowing rotating shafts to spin freely. Good seals help maintain proper oil levels, stop drips on the driveway, and prevent oil mist from softening belts or contaminating rubber bushes. When they harden or wear, they’ll weep or leak—leading to mess, low fluid, and sometimes bigger headaches like a slipping clutch (manual) or a wet timing belt (V6).

• Engine: front crankshaft seal, rear main seal, camshaft seals (varies by engine)
• Transmission: left/right drive shaft (output) oil seals on both manual and automatic models
• Other lubricated housings may also use seals and O‑rings where specified by Honda

They’re not a routine “every X kilometres” service item, they’re replaced when leaking or while other work is already underway. Practical opportunities include:

1. V6 timing belt service: replace front crank and cam seals while the covers are off.
2. Clutch replacement (manual): consider the rear main seal while the gearbox is out.
3. CV/drive shaft work: renew transmission output seals if there’s any sign of seepage.

Tell‑tale signs include oil on the lower timing cover or around the crank pulley, a burnt‑oil whiff after a drive, drips at the bellhousing, or ATF/MTF around the inner CVs. During regular servicing, a tech should check these areas, top up/replace engine oil and transmission fluids as specified, and confirm the PCV system is breathing freely—excess crankcase pressure can push oil past otherwise healthy seals.

Quality matters. Reputable seals (FKM/Viton where applicable) installed with the correct driver, to the proper depth and orientation, and on clean, unscratched shafts last far longer. Fresh engine oil of the correct grade, proper ATF/MTF, and timely fluid changes also help keep seals conditioned. If a 2007 Accord is starting to mark its spot on the driveway, getting onto the source early saves both money and mess.

Popular questions

Does the 2007 Honda Accord have a rear main seal, and when should it be replaced?
Yes. Both the 2.4‑litre and 3.0‑litre engines use a crankshaft rear main oil seal between engine and gearbox. It isn’t a scheduled item, it’s replaced when leaking, or proactively during a clutch change (manual) or any gearbox‑out job to save labour later.

What are the signs of a leaking crank or cam seal on a 2007 Accord?
Look for oil mist or wetness behind the crank pulley, damp timing covers, or oil tracks down the front of the engine. You might notice a hot‑oil smell at idle after a run. On V6 models, a leaking cam or crank seal can leave the timing belt area oily.

Should the drive shaft (axle) oil seals be replaced when doing CV shafts?
If there’s any weep at the transmission outputs or if the seal lips look worn, it’s smart to renew them while the shafts are out. It’s a modest extra step that can prevent ATF/MTF leaks and a second round of labour down the track.