Parts for your 2019 Haval H6-Sump plug washers

2019 Haval H6 sump plug washers: fitment, purpose and servicing

Based on technical references, a sump plug washer is used on the 2019 Haval H6. The GWM/Haval H6 Service Manual for the GW4C20B petrol engine (Lubrication System section) specifies replacing the drain plug sealing gasket during oil changes, the Great Wall Motors electronic parts catalogue lists a separate “engine oil drain plug sealing washer” for H6 models of this generation, and major aftermarket catalogues (e.g., Tridon sump plug washers application guide and Ryco vehicle lookup) list an M14 crush-type washer for the H6. All of this points to a conventional drain plug that seals via a replaceable crush washer, not a captive or tapered plug.

For the 2019 Haval H6, the sump plug washer’s job is simple but critical: it deforms slightly as the plug is tightened, creating a reliable seal between the plug head and the sump to stop weeps and drips. On this model, it’s typically an aluminium or copper crush washer sized to suit an M14 drain plug. Because it’s designed to crush once, it should be treated as a consumable item during each service.

Owners and workshops alike will save headaches by swapping the washer at every oil change. Reusing a flattened or gouged washer can cause slow leaks, oil misting under the vehicle, and messy undertrays. Best practice is to clean the sump seating face, fit a fresh washer, and tighten the plug to the service manual torque. If the exact spec isn’t to hand, most M14 plugs fall roughly in the 25–35 N·m range, always confirm for the specific engine code and market.

Handy tips when servicing a 2019 H6:

• Keep a small stash of quality M14 crush washers (aluminium or copper) in the service kit.
• Inspect the sump seat and plug head for nicks, replace the plug if it’s burred or the flange is grooved.
• Avoid thread sealants or tape, the washer provides the seal when torqued correctly.
• If there’s any weeping after a change, don’t over-tighten, refit with a new washer and correct torque.

Look after the washer and the plug, and the H6’s lubrication system will stay clean and dry between services—no oily driveway, no top-up surprises, just tidy, reliable motoring.

Popular questions about 2019 Haval H6 sump plug washers

What size sump plug washer does a 2019 Haval H6 use?
Most 2019 H6 petrol models use a crush washer for an M14 drain plug. The inside diameter is 14 mm, with an outside diameter and thickness that varies slightly by brand. Aluminium or copper types both work well. It’s smart to confirm against the VIN or measure the old washer before buying in bulk.

How often should the sump plug washer be replaced on a 2019 Haval H6?
Replace it at every oil change. The washer is a one-time-use crush seal, reusing it risks slow leaks. Fit a fresh washer, clean the sealing faces, and torque the plug correctly to keep everything bone-dry.

What is the drain plug torque for a 2019 Haval H6?
The service manual should be followed for the exact figure by engine code, but many M14 drain plugs tighten in the 25–35 N·m window. If uncertain, reference the H6 workshop manual for the GW4C20B engine to avoid under- or over-tightening.