2020 Suzuki KingQuad 400 — Should You Buy One?
Typical asking price: $4,500–$6,500. There is 1 high-severity known issue you need to know before handing over a check.
Kestrel Take
A simple, tough, reliable utility quad — the KingQuad 400 is old-school dependable, with a durable engine and available manual or automatic transmission, making it a value workhorse for hunting and chores. Lower-tech than the 570/700 machines but bulletproof. Same mud/water and CV-boot inspection. A well-kept, un-drowned KingQuad is a dependable, affordable utility quad; verify the airbox, oil, and boots and check for hard use.
Known Issues for the 2020 Suzuki KingQuad 400
Ranked by wallet impact. These are documented, recurring problems — not freak accidents.
Check the airbox and oil for water/mud; inspect bearings, CV boots, and radiator.
Repair cost range: $200-$1,200
Inspect CV boots for tears.
Repair cost range: $100-$500
Verify oil, valve, and air-filter service.
Repair cost range: $100-$400
Check tires and brakes.
Repair cost range: $100-$500
Walk-Away Red Flags
- ✗Water/mud in oil or airbox
- ✗Torn CV boots
- ✗Neglected service
- ✗Worn tires/brakes
Good Signs
- ✓Clean oil and airbox
- ✓Intact boots
- ✓Documented service, honest use
Found a specific Suzuki KingQuad 400?
This page covers what goes wrong on the 2020 Suzuki KingQuad 400 in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.
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