Generators: warranties compared
14 brands. We read every warranty so you don't have to. Checked through October 2026.
7 of 14 brands cover generators in full for one year or less. The longest full coverage is 5 years, from DuroMax and Kohler Generators. 7 brands keep some parts covered after full coverage ends.
Every brand, side by side
- 1DuroMax65/100Full: 5 yearsNo partial coverage
- 2Kohler Generators60/100Full: 5 yearsNo partial coverage
- 3Champion Power Equipment43/100Full: 3 yearsNo partial coverageVaries by model line
- 4Honda43/100Full: 3 yearsNo partial coverage
- 5Honda Power Equipment43/100Full: 3 yearsNo partial coverage
- 6Yamaha43/100Full: 3 yearsNo partial coverageCheck your model's manual
- 7Generac35/100Full: 2 yearsPartial: to 5 yearsPartial covers: Engine short block and alternator; Parts only (year 3)
- 8A-iPower26/100Full: 1 yearPartial: to 3 yearsPartial covers: Parts onlyCheck your model's manual
- 9Firman26/100Full: 1 yearPartial: to 3 yearsPartial covers: Parts
- 10WEN26/100Full: 1 yearPartial: to 3 yearsPartial covers: Replacement partsCheck your model's manual
- 11Westinghouse26/100Full: 1 yearPartial: to 3 yearsPartial covers: Replacement parts only
- 12Westinghouse Outdoor Power26/100Full: 1 yearPartial: to 3 yearsPartial covers: Replacement parts only; Emission control parts
- 13Pulsar Products17/100Full: 6 monthsPartial: to 1 yearPartial covers: Engine and alternator partsCheck your model's manualUnverified
- 14Briggs & Stratton10/100Full: NoneNo partial coverage
From each maker's published warranty. “Unverified” means we couldn't confirm the terms on the maker's own site. How we rate warranties
What these warranties often leave out
- Normal wear and tear13 of 14 brands
- Scratches, dents and looks5 of 14 brands
- Water damage5 of 14 brands
- Stopping working from outside causes4 of 14 brands
- Batteries2 of 14 brands
- Accidental breaks and misuse1 of 14 brands
How long stores give you to return it
Longest return window first, for generators.
- CostcoMost itemsNo fixed deadline
- Sam's ClubMost itemsNo fixed deadline
- The Home DepotMost items90 days
- WalmartMost items90 days
- Blain's Farm & FleetUpper Midwest storesMost items90 days
- Northern Tool + EquipmentMost items60 days from delivery
Show all 9 stores
- Ace HardwareMost items30 days
- Do it BestMost items30 days
- Tractor SupplyMost items30 days
From each store's published return policy, using its rule for generators where it has one. Member and holiday extensions aren't counted. Check yours before you buy.
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Questions shoppers ask
Which brand of generators has the best warranty?
On paper, DuroMax scores highest, with 5 years of full coverage.
Is a long warranty on generators really that long?
Often not for the whole product. Many longer warranties cover only certain parts after the first year or two, and you usually pay for the labor. The bars above show full and partial coverage separately.
Do I need to register to get the warranty?
2 of 14 brands require registration for some of their coverage, often within a set number of days. Keep your receipt either way.
Forward the receipt and I-BUY.AI tracks the return window and warranty for you.