Parts for your 2020 Haval H6-Harmonic balancers

2020 Haval H6 Harmonic Balancer (Crankshaft Vibration Damper)

Technical documentation confirms the 2020 Haval H6 is fitted with a harmonic balancer (also called a crankshaft vibration damper or crank pulley with damper). This is shown in Haval’s factory workshop manual procedures for “Crankshaft Pulley/Vibration Damper Removal & Installation” and in Great Wall Motors’ Global EPC parts listings for the GW4G15F (1.5T) and GW4C20B (2.0T) engines as “Damper Assy – Crankshaft”.

• Haval H6 Workshop Manual (2017–2020), Engine Mechanical – Crankshaft Pulley/Vibration Damper
• Great Wall Motors Global EPC (Haval H6 2019–2020 GW4G15F/GW4C20B) – Damper Assy, Crankshaft

On the 2020 Haval H6, the harmonic balancer’s job is to soak up torsional vibration from the crankshaft so the engine runs smoother and the accessories belt system behaves itself. It’s essentially a metal hub bonded to a weighted ring with rubber in between. That rubber layer does the damping, protecting the crank, timing gear, and belt-driven components from harsh pulses, while trimming noise and vibration in the cabin. It also helps keep the serpentine belt tracking nicely across the alternator, A/C compressor and power steering drive.

There’s no fixed replacement interval, but time, heat and oil contamination can age the rubber. A good rule in Aussie and Kiwi conditions is to have it inspected at regular services and especially around the 8–10 year mark, or sooner if the vehicle does lots of hot urban work. Tell-tale signs include a wobbly crank pulley at idle, a chirp or squeal from the belt, visible cracking or separation in the damper rubber, new-found vibrations through the body, or repeated belt wear. If any of that shows up, don’t leave it—if the damper lets go, it can take out the belt and leave you without charging or power steering.

When replacing, quality matters: choose an OE or reputable brand damper. Under the bonnet, use the proper holding tool, follow the workshop manual torque and angle specs, and fit a new crank bolt if the engine specifies a torque-to-yield fastener. Never lever on the outer ring—it can damage the bond. It’s smart to replace the accessory belt at the same time and check the idlers, tensioner and front crank seal for leaks that could attack the new rubber. After fitting, run the engine and watch the pulley—no wobble, no walk, no noise. That’s the behaviour you want for long, quiet kilometres.

Does the 2020 Haval H6 actually have a harmonic balancer?

Yes. It’s fitted from factory and listed as a crankshaft vibration damper in Haval’s workshop procedures and EPC for both the 1.5T and 2.0T engines. It doubles as the drive pulley for the accessory belt.

How long should a harmonic balancer last on a 2020 H6?

Many last the life of the vehicle, but rubber ages. In local conditions, expect inspection from about 8–10 years or if symptoms show up. Regular servicing checks are the best way to catch hardening, cracks or wobble early.

What are the common signs it needs replacing?

Look for pulley wobble, belt squeal or fraying, visible cracks or rubber separation, new vibration at idle or cruise, and accessory issues like weak charging. Any oil leak onto the damper is also a red flag—fix the leak and assess the damper.