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NHTSA Recall 21V987000: Radiator assembly (engine and engine cooling)

Honda (American Honda Motor Co.) reported this safety recall to NHTSA on , covering an estimated 1,022 vehicles. It affects 2021 Honda Rebel 1100.

1,022
vehicles potentially affected
1
model affected
2022
owners notified (February 22)
NHTSA campaign21V987000
Manufacturer campaignKN1
ComponentENGINE AND ENGINE COOLING › COOLING SYSTEM › RADIATOR ASSEMBLY
Report receivedDecember 16, 2021
Owner notificationFebruary 22, 2022
Initiated byManufacturer

Defect

Honda (American Honda Motor Co.) is recalling certain 2021 Honda Rebel 1100 (CMX1100) motorcycles. The radiator cap may have been improperly formed during manufacturing, which could create an insufficient seal.

Safety risk

An insufficiently sealed radiator cap may leak or spray hot coolant, increasing the risk of injury or crash.

Remedy

Dealers will replace the radiator cap and refill any lost coolant, free of charge. Owner notification letters were mailed February 22, 2022. Owners may contact Honda service at 1-888-234-2138. Honda's number for this recall is KN1.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Vehicles covered by recall 21V987000

Make and modelModel years
Honda Rebel 11002021

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.