Parts for your 2016 Ford Transit-Sump plug washers

2016 Ford Transit — Sump Plug Washers

Based on technical sources including the Ford Workshop Manual (2016 Transit, engine oil drain/fill procedures), the Ford Electronic Parts Catalog (EPC/Microcat), and independent service data (Autodata/Haynes for 2014–2019 Transit), the 2016 Ford Transit does use a sump plug sealing washer. Depending on engine, it’s either a separate crush washer (commonly on Duratorq/Power Stroke diesels) or a one-piece drain plug with a bonded rubber seal (often on the petrol V6s). In every case, Ford service information specifies renewing the seal (or the complete plug if integral) at each oil change.

On this Transit, the sump plug washer’s job is simple but critical: it seals the oil drain plug to the sump so engine oil doesn’t weep out once the plug is tightened. When the engine heats and cools, metals expand and contract, and vibrations do their bit too—so a fresh, deformable seal maintains a tight, leak-free joint. On diesel variants, the washer is typically a copper or aluminium crush type, on some petrol engines, Ford supplies a drain plug with a bonded rubber gasket built in. Either way, it’s still the sump plug “washer” doing the sealing.

Workshop guidance calls for replacing the sealing washer every time the plug is removed. For plugs with a bonded seal, the whole plug is considered single-use and should be swapped out during the service. That approach matches what’s shown in the Ford WSM oil service procedures and the EPC parts listings for the 2016 Transit range.

Good practice for owners and techs in Australia and New Zealand:

• Use a new crush washer or a new one-piece plug at each oil change—don’t reuse a flattened washer.
• Clean the sump seat and plug face before refitting. Never stack old washers.
• Tighten the drain plug to the specified torque from the Ford manual for the exact engine code.
• After refilling and running the engine, check for drips around the plug. Any weep means the washer or plug should be replaced again.

If the vehicle has been serviced with a generic plug or an incorrect washer size, minor seepage can show up as oily misting on the sump or small spots on the driveway. Matching the washer style and size to the VIN-listed engine variant avoids that grief and keeps the Transit tidy between services.

Popular questions

Does a 2016 Ford Transit have a sump plug washer?
Yes. Ford’s workshop procedures and parts catalogues specify a sealing washer for the drain plug. On some engines it’s a separate crush washer, on others it’s a one-piece plug with a bonded seal that’s replaced as an assembly.

How often should the sump plug washer be replaced?
Every oil change, or anytime the plug is removed. That’s consistent with Ford’s service information, which treats the seal as single-use to ensure a reliable, leak-free refit.

Which washer fits a 2016 Transit?
It varies by engine. Diesel and petrol variants use different plugs and seals. The correct way is to match by VIN through the Ford EPC or use the engine code to select the exact washer or one-piece plug specified for that Transit.