Parts for your 2014 Subaru Xv-Sump plug washers

2014 Subaru XV sump plug washers: what they do and when to replace them

Based on technical sources, a sump plug washer is definitely used on the 2014 Subaru XV (FB20 engine). The Subaru Owner’s Manual for the 2014 XV (Engine oil section) instructs to “use a new gasket for the drain plug” at each oil change, and the Subaru Service Manual (STIS) procedure for the FB20 specifies “install the drain plug with a new gasket” and torque the plug to 44 N·m. Genuine Subaru parts catalogues for this model list an aluminium “Gasket – drain plug” for the engine sump. So, the washer is relevant and fitted from factory.

On this XV, the sump plug washer is a small, single-use aluminium crush gasket that sits between the sump plug and the alloy sump. When the plug is tightened to spec, the washer cold-flows and conforms to tiny imperfections, creating a reliable seal. That deformation is the whole point: it seals engine oil in without needing excessive tightening, which helps protect the sump threads and the sealing face. Aluminium is used because it deforms predictably at service torque and resists corrosion in hot engine oil.

For servicing, the smart play is to replace the sump plug washer at every oil change. Reusing a crushed washer often leads to weeping or slow drips that show up days later as spots on the driveway, and mechanics may be tempted to over-tighten to compensate. Keep a couple of genuine-spec washers in the service kit, they’re inexpensive insurance. After draining, wipe the sump face clean, thread the plug in by hand to avoid cross-threading, fit a fresh washer, then torque the plug to 44 N·m. Start the engine, let it idle briefly, and check for leaks after shutdown. Recheck for any signs of seepage at the next cold start.

A few tips: never double up old washers, and don’t use thread tape or sealant on the sump plug. If the sump face has scoring or nicks, address that before refitting. Sticking with an OE-style aluminium washer maintains the right crush characteristics, mixing materials can alter the clamp load at the specified torque. Dispose of used oil responsibly, and keep the servicing interval consistent to keep that FB20 running sweet as.

Does the 2014 Subaru XV use a sump plug washer, and which type?

Yes. It uses a single-use aluminium crush washer on the engine oil drain (sump) plug. Subaru catalogues commonly list a genuine aluminium “Gasket – drain plug” for the 2014 XV/FB20, buying by VIN or genuine part reference ensures the correct fit and material.

How often should the sump plug washer be replaced on a 2014 Subaru XV?

Every oil change. The washer is designed to deform once to seal properly. Reusing it risks slow leaks, overtightening, or damage to the sump face and threads.

What’s the correct torque for the 2014 Subaru XV sump plug?

44 N·m. Tightening to this spec allows the aluminium washer to crush and seal without overstressing the alloy sump. Always start the plug by hand, then torque to spec on a clean sealing surface.