Parts for your 2017 Haval H6-Harmonic balancers

2017 Haval H6 Harmonic Balancer — Purpose, Care and Replacement

Yes, the 2017 Haval H6 uses a harmonic balancer (also called a crankshaft vibration damper). Technical documentation for the Haval/Great Wall GW4C20A 2.0‑litre turbo petrol engine fitted to AU/NZ‑spec H6 models identifies an elastomer‑type crankshaft pulley/damper on the nose of the crank. This is backed up by OEM parts catalogues from Great Wall Motors and common aftermarket listings (e.g., Dayco and Gates), as well as standard engine design practice noted in engineering texts and SAE literature on torsional vibration control for inline‑four engines.

On the H6, the harmonic balancer’s job is to soak up crankshaft torsional vibrations created every time a cylinder fires. That rubber‑bonded damper ring helps keep the crank happy, protects the timing gear and bearings, and keeps the accessory drive smooth so the belt, alternator and A/C don’t cop unnecessary punishment. It also helps the engine feel less buzzy at idle and during quick rev changes.

There’s no hard replacement interval, but it’s smart to inspect it at each service. Look for perished, cracked or oily rubber, wobble in the pulley, a chirp or squeal from the belt area, or extra tingles through the cabin at idle. Oil leaks can soften the elastomer, so fixing any front main seal or timing cover weep is worth it.

• Typical symptoms of a failing balancer: visible pulley wobble, belt noise, unexplained misalignment, vibration under load, or the belt walking off a rib.
• Good practice at service time: check the rubber ring, pulley runout, and belt/tensioner condition together.

Replacement is straightforward for a trained tech: safely lock the crank, remove the belt, crack the crank bolt, swap the damper, and torque the new bolt to spec (many are torque‑to‑yield, so use new hardware). Align any timing or keyway features, then refit and tension the belt. It’s a great time to replace a tired belt or noisy tensioner so it’s sorted in one go.

Quality matters here. Stick with a genuine unit or a reputable brand balancer that matches the GW4C20A spec. With a healthy damper, the H6 runs smoother, accessories last longer, and the engine’s internal bits don’t have to work as hard—easy peace of mind for the next many thousands of kilometres.

• Does the 2017 Haval H6 actually have a harmonic balancer?
  Yes. The AU/NZ‑spec 2.0‑litre turbo petrol (GW4C20A) engine uses an elastomer‑type crankshaft vibration damper. This is shown in the engine service manual and reflected in OEM and aftermarket parts catalogues listing a crank pulley/damper for the 2017 H6.
• What are the tell‑tale signs the H6 balancer is failing?
  Look for pulley wobble, rubber cracking or separation, belt chirp, increased vibration at idle or under load, and any oil contamination around the pulley. If the belt starts walking off or there’s visible runout, get it checked promptly.
• What does replacement usually cost in Australia or New Zealand?
  Ballpark: parts typically land around AUD/NZD $180–$450 depending on brand, with 1–2 hours labour common. All‑up, many owners see roughly AUD/NZD $350–$800, especially if a belt or tensioner is done at the same time.