Parts for your 2020 Haval H6-Oil pump

2020 Haval H6 Oil Pump – Purpose, servicing tips, and when to replace

Based on technical references including the Haval H6 factory workshop manual (Lubrication System section, 2019–2021 model coverage), the Haval/Great Wall electronic parts catalogue (EPC) diagrams for the H6 turbo-petrol engines, and standard automotive texts such as the Bosch Automotive Handbook on pressure-fed lubrication, the 2020 Haval H6 is fitted with an engine oil pump. It’s a wet-sump, pressure-lubrication setup with a crank-driven pump (typically a gerotor/variable-displacement design) supplying oil to bearings, camshafts, timing components, and the turbocharger.

The oil pump’s whole job is to move and pressurise engine oil so every critical surface gets a steady film, especially under boost and hot Aussie and Kiwi conditions. Without it, bearings would score, the turbo would cook itself, and the engine wouldn’t last long. On the H6, the pump draws oil through a pickup and strainer in the sump, pushes it through the filter, and regulates pressure via an internal relief/valve system.

There’s no routine replacement interval for the pump itself, it’s designed to last the life of the engine if serviced properly. What matters is keeping the pump fed with clean, correct-spec oil and an OE-quality filter. Owners should follow the service schedule in the owner’s manual, typically every 10,000–15,000 kilometres or 12 months depending on duty. For turbo GDI variants, a high-quality oil meeting the specified API/ACEA grade (often 5W-30/5W-40 for local climates and LSPI-safe specifications) helps protect the pump and the turbo’s bearings.

Warning signs that point to pump or lubrication issues include:

• Oil pressure warning light at hot idle, or fluctuating pressure
• Tapping/rumble on start-up, rising valvetrain or bottom-end noise, or turbo whine
• Metallic glitter in drained oil or a clogged pickup strainer

If the pump must be replaced, it’s a sump-off and front cover/timing-area job on most H6 engines. Good practice is to inspect the pickup, O-rings, relief valve, and timing chain drive for wear. Prime the new pump with clean oil, pre-fill the filter, verify pressure with a mechanical gauge on first start, and clear any related DTCs. Pair a new pump with fresh oil and filter, and consider shorter initial intervals (e.g., 5,000 km) to flush any residual debris.

Smart maintenance for Aussie and Kiwi conditions: avoid extended drains, check for leaks, keep the PCV system healthy, and let the engine idle briefly after hard runs so the turbo and oil circuit aren’t heat-soaked.

Popular questions

Does the 2020 Haval H6 actually have an oil pump, and where is it?
Yes. The H6 uses a crank-driven pump inside the front cover/sump area as part of its wet-sump pressure lubrication system. It pulls oil from the sump via a pickup and sends it through the filter and galleries to the engine and turbo.

When should the oil pump be replaced on a 2020 H6?
There’s no scheduled interval. Replacement is considered when there’s verified low oil pressure, internal wear, a damaged relief valve, or contamination. A proper diagnosis with a mechanical pressure gauge and inspection of the pickup/strainer comes first.

What oil helps protect the pump and turbo on the H6?
Use the viscosity and specification called up in the owner’s manual for local temperatures (commonly a quality 5W-30 or 5W-40 meeting the required API/ACEA spec and LSPI protection for GDI turbo engines). Sticking to 10,000–15,000 km/12-month services in AU/NZ conditions is a safe bet.