Parts for your 2018 Haval H6-Thrust bearing

2018 Haval H6 thrust-bearing: what it is and when to service it

Technical sources confirm a thrust-bearing is fitted to the 2018 Haval H6. The Haval/Great Wall workshop literature for the GW4C20-series 2.0‑litre turbo engine used in the H6 specifies crankshaft endplay checks and identifies a thrust-bearing (typically integrated with a main bearing) to control axial movement. Great Wall Motors’ electronic parts catalogue for GW4C20 engines lists thrust-bearing components in the bottom end, and standard references such as the Bosch Automotive Handbook and Schaeffler/INA engine bearing guides describe thrust-bearings as a universal feature of modern inline petrol engines. On that basis, a thrust-bearing is relevant and used on the 2018 H6.

In this H6, the thrust-bearing’s job is to keep the crankshaft from walking forwards and backwards under axial loads. Those loads come from clutch or dual‑clutch actuation, accessory belt forces, torque converter thrust (on autos), and the helical cut of the oil pump and timing drive. By holding endplay within spec, the thrust-bearing protects the block, keeps the crank aligned with the oil pump and timing set, and helps the engine idle smoothly.

It isn’t a scheduled replacement item, but it does rely on clean, correct‑grade oil and sensible service intervals. During major servicing or any lower‑end work, a technician may:

• Measure crankshaft endplay with a dial indicator and compare to the Haval spec in the workshop manual.
• Inspect sump and filter for metallic flakes that could indicate bearing distress.
• Verify oil pressure and address any lubrication issues straight away.

Typical warning signs of thrust-bearing wear include a change in idle when the clutch is pressed (manual/DCT actuation load), a light knock from the front of the engine, visible fore‑aft movement of the crank pulley, or recurring metal glitter in the oil. If endplay is out of spec, replacement involves removing the sump and main bearing caps, renewing the flanged/thrust main bearing shells, checking clearances, torquing caps to spec, and re‑measuring endplay. Always use new seals and any torque‑to‑yield fasteners specified by Haval.

Worth noting: some people use “thrust-bearing” to mean a clutch release/throw‑out bearing. The 2018 H6’s dual‑clutch/automatic variants use release bearings inside the transmission module, those aren’t routine service items and are normally replaced only when the clutch pack or gearbox is out. The engine’s thrust-bearing, however, is always present regardless of transmission and benefits directly from timely oil changes with the factory‑approved grade.

Popular questions

Does a 2018 Haval H6 have a thrust-bearing?
Yes. The GW4C20‑series engine in the H6 uses a crankshaft thrust-bearing (often part of a flanged main bearing) to control endplay. It’s an essential bit of kit in virtually all modern inline engines.

What symptoms point to a worn thrust-bearing on a Haval H6?
Look for a change in idle when applying clutch load, a light front‑engine knock, visible in‑out movement of the crank pulley, or metallic debris in the oil. Proper diagnosis involves measuring crank endplay against the workshop spec.

When should the thrust-bearing be replaced?
There’s no fixed interval. It’s replaced if endplay is out of spec, if there’s bearing damage during a rebuild, or when the bottom end is open for related repairs. Sticking to the correct oil and service schedule goes a long way to preventing issues.