Parts for your 2016 Ford Territory-Oil seals

2016 Ford Territory oil seals — what they do and when to sort them

Oil seals are absolutely used on the 2016 Ford Territory. This is backed by the Ford Territory SZ II Workshop Manual (2014–2016), which identifies radial oil seals at the crankshaft (front and rear), camshafts, transmission output, transfer case and differential pinion/axle areas across RWD and AWD variants. Ford’s Electronic Parts Catalogue for the SZ II Territory likewise lists multiple engine, transmission and driveline oil seals. General engineering guidance from seal makers (SKF, Corteco, NOK, Timken) explains these as radial shaft seals designed to retain lubricants and exclude contamination.

On a 2016 Territory, oil seals keep engine oil, ATF and diff oil where they belong while keeping grit and water out. They ride on rotating shafts (like the crank, pinion and output shafts), maintaining a thin oil film under the sealing lip. This protects bearings, clutches and gears, and helps the big Ford run quietly and reliably on long Aussie and Kiwi roads.

They’re not a routine replacement item, but they do deserve a look at each service. Tell-tales include dampness around the crank pulley, a drip from the bellhousing (rear main seal), oil mist around the transmission or transfer case, or a weep at the nose of the diff. On AWD models, also keep an eye on front diff and transfer seals. If left too long, a small weep can drop onto exhausts (burnt oil smell), soften rubber mounts, or lower fluid levels enough to cause expensive wear.

• Common Territory oil seals: front and rear crankshaft, camshaft, auto transmission output/selector, transfer case input/output (AWD), differential pinion and axle tube seals.
• Typical causes of leaks: age hardening, shaft wear grooves, heat cycles, overfilled fluids, blocked engine PCV or diff breathers increasing internal pressure.

Replacement is straightforward for some seals and a big job for others. A rear main needs the transmission out, so many owners line it up with a clutch or flexplate-related job to save labour. Good workshops will:

• Use quality OEM or reputable-brand seals and the correct driver tools.
• Lightly oil the lip and set the right depth/orientation.
• Inspect shaft surfaces and fit a wear sleeve if grooved.
• Clear the engine PCV and diff breathers so new seals aren’t pressurised.
• Top up the correct oil/ATF and recheck for weeps after a few hundred kilometres.

For most Territory owners, the plan is simple: inspect at every service, fix minor weeps before they become gushers, and insist on proper installation technique. Do that, and the seals will quietly get on with the job for years.

FAQs

How can someone spot a leaking rear main seal on a 2016 Territory?
Usually by fresh oil at the join between engine and transmission, or drops collecting at the bottom of the bellhousing. If the leak is larger, there may be oil on the undertray or a burnt-oil smell after a drive. A UV dye check during a service helps confirm it’s the rear main and not a rocker cover or sump weep tracking backwards.

Is it okay to keep driving with a weeping diff pinion seal?
A short trip is usually fine, but it’s not ideal to leave it. Diff oil level can drop and bearings won’t be happy running dry. If there’s noticeable sling on the underbody or the tailshaft, book it in soon and have the breather checked so the new seal lasts.

Do oil seals need routine replacement on the Territory?
No, there’s no fixed kilometre change. They’re replaced on condition. During regular services, a technician should inspect for dampness or dust build-up around seals. If seepage is minor, monitoring may be all that’s needed