Parts for your 2019 Haval H6-Oil seals

2019 Haval H6 oil-seals — purpose, service and replacement

Based on technical references including the Haval H6 (2017–2020) workshop manual and the Great Wall Motors electronic parts catalogue, the 2019 Haval H6 definitely uses oil-seals throughout the drivetrain. These sources list front and rear crankshaft oil-seals, camshaft seals, axle/driveshaft oil-seals, and transmission/transfer case input–output shaft seals (AWD where fitted), plus differential side seals. So oil-seals are absolutely relevant to this model.

On the 2019 H6 (1.5T and 2.0T petrol variants), oil-seals keep engine oil, transmission fluid and diff oil where they belong, while keeping dust and water out. They sit at rotating shafts—think crank, cams, and driveshaft stubs—using a lip seal that rides on a machined surface. When they harden, wear a groove, or face excess crankcase pressure, they can seep or drip, making a mess under the bonnet or along the underbody.

As part of routine servicing, oil-seals aren’t a scheduled replacement item by time or kilometres, but they should be inspected anytime there’s oil misting or a fluid top-up is needed. A technician will clean suspect areas, run the engine, and check for fresh weeping.

• Common leak points on H6: front crankshaft seal, rocker/upper timing cover interfaces, rear main seal, driveshaft (CV) seals at the transmission, and diff pinion/side seals (AWD).
• Typical signs: oil on the lower timing cover, burning-oil smell on warm-up, drops on the driveway, oily CV housings, or low engine/trans/diff fluid levels.

If a seal is leaking, replacement is the fix—additives are a band-aid at best. Front crank and cam seals are moderate labour with the belt/chain covers off. Rear main seals are more involved because the transmission needs to come out. Driveshaft and diff seals are generally straightforward but need correct fluid refills and torque procedures.

Good practice for the H6 includes using quality OEM-spec seals, inspecting the crankcase ventilation (PCV) system to avoid pressure build-up, and keeping engine oil and transmission fluid at the right spec and level. After seal work, it’s smart to degrease the area and recheck after a few drives to confirm it’s all dry. Catching a small weep early helps avoid soaked mounts, slipping belts, or contamination of clutch/DCT components.

Popular questions about 2019 Haval H6 oil-seals

Where are the most common oil-seal leaks on a 2019 Haval H6?
Owners and techs most often see leaks at the front crank seal and timing cover area, plus driveshaft seals at the transmission. On AWD models, diff side seals and the pinion seal can also show weeping. Any fresh oil tracking from these spots is a cue for a closer look.

How often should oil-seals be replaced on a 2019 H6?
There’s no fixed interval. They’re replaced on condition—if there’s weeping, hardening, or damage during related jobs (like timing work or clutch/DCT service). Regular inspections at each service help catch issues before they become costly.

Is it safe to drive with a minor oil-seal leak?
A light mist may not strand the vehicle, but it can worsen quickly. Leaks can contaminate belts, clutches/DCT components, or CV boots, and low oil or fluid levels risk major damage. It’s best to monitor levels closely and book a repair sooner rather than later.