OEM Honda CR Water Pump Cover Bearing – 12x28x7 (Supersedes 91001-KA4-004)
Precision Fitment for CR Water Pump Systems
Don’t Cut Corners. Run the OEM Bearing MSV Racing Trusts.
This is the OEM-spec radial ball bearing (12x28x7) used in water pump covers for many high-performance dirt bikes — including Honda CR models. It supersedes part number 91001-KA4-004 and is manufactured by TOYO, a trusted OEM supplier.
✅ Genuine OEM water pump cover bearing
✅ Exact spec: 12mm ID x 28mm OD x 7mm width
✅ High-speed, high-temp rated for off-road abuse
✅ Designed to handle coolant exposure and engine vibration
✅ MSV Racing approved — no sketchy eBay knockoffs here
Cheap bearings fail early — and can destroy seals, shafts, or worse. This is the only bearing MSV Racing recommends when rebuilding or maintaining your CR water pump system.
✔ In stock now – Protect your motor with the real deal.
William Klea (verified owner) –
Great!