Parts for your 2018 Haval H6-Ignition leads

2018 Haval H6 ignition leads — not used on this model

For the 2018 Haval H6, ignition leads (high‑tension spark plug leads) aren’t fitted or required. Technical references including the Great Wall Motors/Haval H6 Workshop Manual for the GW4G15B/GW4C20B petrol engines (Ignition System section) specify a direct ignition, coil‑on‑plug layout with an individual pencil coil on each cylinder. Aftermarket catalogues such as NGK’s TecDoc listings for the 2018 H6 back this up by showing spark plugs and ignition coils, but no HT lead sets. OE parts diagrams used by dealer networks also depict four coil packs mounted directly over the plugs, with no conventional leads.

Why no ignition leads? Coil‑on‑plug (COP) systems deliver the spark straight to each plug, doing away with long high‑voltage cables. This improves spark energy and timing accuracy, reduces electromagnetic interference, and cuts down on common lead issues like cracking, arcing and moisture tracking. It also saves space on the top of the engine and generally boosts reliability—handy for Aussie and Kiwi conditions where heat and dust can be tough on older lead‑type setups.

For owners looking after a 2018 H6, the focus shifts from “leads” to the items that actually exist: spark plugs and the four ignition coils. Service checks should include plug condition and gap, and basic coil health if any misfire codes appear. Follow the owner’s handbook interval for plugs (iridium types commonly run long intervals, often around 60,000–100,000 kilometres, but always go by the Haval schedule for the specific engine). If a misfire pops up, technicians typically scan for fault codes, swap coils cylinder‑to‑cylinder to confirm a fault, and inspect the coil boots for carbon tracking or oil ingress.

• Keep water and degreaser away from the coil tops and connectors when cleaning the engine bay.
• If removing coils, handle the connectors carefully and refit the coils squarely onto the plugs.
• Use the specified spark plugs and correct torque, over‑tightening can damage threads.

Bottom line: the 2018 Haval H6 simply doesn’t use ignition leads. Its COP ignition is by design—and that’s a good thing for day‑to‑day reliability and lower maintenance.

Popular questions about 2018 Haval H6 ignition leads

Does the 2018 Haval H6 have ignition leads?
No. The 2018 H6 uses a coil‑on‑plug ignition system with an individual coil on each spark plug, so there are no traditional high‑tension leads to replace. This layout is confirmed in Haval’s workshop documentation for the GW4G15B/GW4C20B petrol engines and is reflected in major parts catalogues that list coils and plugs, but no lead sets.

What should be serviced instead of ignition leads on a 2018 H6?
Focus on spark plugs and the four ignition coils. Replace the plugs at the interval shown in the owner’s manual (iridium plugs often run 60,000–100,000 km, but follow Haval’s spec). If there’s a misfire, a technician will usually scan for codes, check coil operation, and inspect coil boots for tracking or oil.

Can ignition leads be fitted or upgraded on a 2018 H6?
No—there’s nowhere to fit them. The engine is designed without high‑tension leads. If chasing better performance or smoother running, ensure the correct OEM‑spec plugs are installed, coils are healthy, and the engine software is up to date.