Honda Engine and Engine Cooling: Hard Parts Internal/Mechanical

Honda is recalling about 474 vehicles over a problem with the engine and engine cooling. Rear wheel lockup increases the risk of a crash or injury.

Campaign
25V892000
Manufacturer
Honda (American Honda Motor Co.)
Reported
18 December 2025
Vehicles
474
Built between
Jan 2025 – Jun 2025
Models
1
Recall type
Vehicle
Initiated by
Manufacturer
Owners notified
Not yet
Repaired
Not reported
Unrepaired
Not reported

Does this affect my vehicle?

This recall covers vehicles built between January 2025 and June 2025. If yours was built outside that window, it is not part of this recall.

  • 2025 Honda CB1000SPBuilt January 2025 to June 2025

What the defect is

Honda (American Honda Motor Co.) is recalling certain 2025 CB1000SP motorcycles. The pistons and piston rings may have been improperly manufactured, which can lead to rod bearing failure, possibly resulting in rear wheel lock up or oil leaking onto the rear tire.

What could happen

Rear wheel lockup increases the risk of a crash or injury. Engine oil that leaks onto hot exhaust components increases the risk of a fire.

What gets fixed

Dealers will inspect and repair the engine assembly as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 9, 2026. Additional letters will be sent once the remedy is available, anticipated December 14, 2026.

Parts involved

  • Piston13101-MLL-D00PISTON
  • Ring, Piston Top 76x0.8x2.313121-MLL-D01Ring, Piston Top 76x0.8x2.3

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Vehicles builtJanuary 2025 to June 2025
  2. Recall reported to NHTSA18 December 2025

No owner-notification date has been published yet. Manufacturers normally write to registered owners within 60 days of reporting a recall.

Your rights

A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.

That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 18 December 2025.

To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.

Manufacturer contact

Owners may contact Honda's customer service at 1-866-784-1870. Honda's number for this recall is KT6. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning January 7, 2026.

Official source

Manufacturer's recall number
KT6, KU4
Recalling manufacturer
Honda (American Honda Motor Co.)
Recall initiated by
MFR

Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.

Check your own vehicle

This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.

A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.

Same component

Same brand