Parts for your 2009 Ford Territory-Oil seals

2009 Ford Territory oil seals: what they do and how to look after them

Oil-seals are absolutely used on the 2009 Ford Territory. Technical sources including the Ford Territory SY/SY II Workshop Manual and Ford’s Microcat parts catalogue list multiple seals on this model — notably the engine’s front crankshaft seal (Ford base number 6700), rear main seal (6A340), differential/axle shaft seals, and (on AWD) transfer case and front diff output seals. Those factory references confirm oil-seals are relevant service items on this vehicle.

On a Territory, oil-seals do the simple but crucial job of keeping lubricants in and grime out. They sit where a rotating shaft passes through a housing — think the crankshaft at the timing cover and rear main housing, transmission and diff output shafts, and (if AWD) the transfer case. Most are spring-loaded lip seals made from durable elastomers designed to ride on a smooth shaft surface and hold pressure and temperature without weeping.

There’s no fixed replacement interval in Ford schedules for oil-seals, they’re serviced on condition. During routine servicing (every 10,000–15,000 km typically in AU/NZ conditions), a good technician will check for fresh oil misting, wetness or drips at common leak points:

• Front crank area (behind the harmonic balancer/pulley)
• Bellhousing join (possible rear main seal weep)
• Diff pinion and axle flanges, transfer case outputs on AWD
• Transmission output/extension housing

Symptoms of a failing seal include drops in engine, diff or gearbox oil levels, oily residue collecting on undertrays or crossmembers, a burning-oil smell on the exhaust, or driveline oil flicked around a flange. Left alone, a leak can contaminate belts, clutches, or brake linings and accelerate bearing wear.

When replacement’s needed, quality and prep matter. Choose OEM or reputable-brand seals, inspect the shaft surface for grooves, clean the bore, lightly oil the seal lip, and install square to the housing at the specified depth. On diffs and transfer cases, renew companion flange nuts and set correct preload/torque as per workshop specs. It also pays to clear engine and diff breathers — blocked breathers raise internal pressure and can force new seals to leak. After any seal work, top up with the correct grade oil and recheck levels and the repaired area after a few short drives.

Popular questions about 2009 Ford Territory oil-seals

What are the signs an oil-seal is failing on a 2009 Ford Territory?
Tell-tales include fresh oil dampness at the crank pulley, a smear at the bellhousing lip, or wet flanges on diffs/transfer case. You might notice oil spots on the driveway, a whiff of hot oil after a run, or a gradual drop in engine or driveline fluid levels.

If it’s the rear main seal, expect oil tracking from the engine–trans join, if it’s a diff pinion, the yoke and underbody just behind it often get oily. Any new noise or vibration points to checking bearing preload as well.

Do oil-seals have a set replacement interval on a Territory?
No — they’re replaced on condition. During each service, a visual check and fluid level check is sufficient. Many last well past 200,000 km, but age, heat cycles, dust, and blocked breathers can shorten life. If there’s noticeable weeping or a wet leak, plan a replacement rather than waiting.

Can driving with a leaking oil-seal cause damage?
Yes. Even minor leaks can contaminate belts or rubber mounts, and ongoing loss of oil risks low lubrication in the engine, gearbox, diff or transfer case. That can lead to bearing wear, noisy operation, and expensive repairs. It’s best to fix early and restore correct fluid levels.