Thor Motor Coach warranty: 2026 A, B and C guides

Use the Thor Motor Coach warranty guide for the motorhome’s model year and class. The 2026 A/C guide states different base, lamination and structural limits; the 2026 Class B guide has its own limited-warranty period. Time, mileage, use and ownership conditions all matter.

2026 guides replace the old 2021-only summary

Published 2026 terms; exclusions and restrictions still apply
Guide and layerStated outside limit
Class A/C limited12 months or 15,000 miles
Class A/C lamination6 years or 50,000 miles
Class A/C structural12 years or 100,000 miles
Class B limited24 months or 30,000 miles

Each stated time/mileage limit ends at whichever comes first. Read the 2026 A/C guide and 2026 Class B guide from the manufacturer’s manual directory for the actual scope and conditions. These periods are not additive.

Annual inspections and transfer conditions need records

The A/C guide requires approved annual inspections to retain structural/lamination coverage, with proof kept and inspections by the purchase anniversaries. It limits transfer to a qualifying second retail owner registered during the original 12-month/15,000-mile period. The Class B guide uses its own original limited period for second-owner registration.

Verify coverage on a used Thor motorhomeIdentify class, original retail date, mileage and issued guideThen: Confirm qualifying second-owner registration and remaining periodThen: Check required inspection records and affected assemblyVerify coverage on a used Thor motorhomeIdentify class, original retail date, mileage and issued guideConfirm qualifying second-owner registration and remaining periodCheck required inspection records and affected assembly

A longer calendar term can still end by mileage

For an assumed 2026 Class B at month 18 with 31,000 odometer miles, the stated 30,000-mile limit has been passed even with six calendar months remaining. That example illustrates the limit; it is not a decision on any actual claim.

Use and failed-part restrictions can change the answer

The Class B guide restricts full-time, residential and certain business use to 90 days/5,000 miles and excludes rental use. A/C provisions also contain use restrictions and defined assembly exclusions. Obtain the clause applicable to your use rather than assuming a long structural term covers every failure.

Keep the chassis and component warranties with the coach guide. Identify the failed part and cause, report it through the required route and retain dated service records. Legal filing provisions also differ from repair-coverage periods; use the issued document for those deadlines.