Upgrade or restore your classic Honda motorcycle’s rear wheel assembly with this Rear Wheel Bearing Retainer — a quality replacement designed to replace OEM #41231‑323‑020 for the left side bearing. This retainer helps secure the rear wheel bearing in place, maintaining correct alignment and smooth wheel rotation. Whether you’re refreshing worn hardware during a restoration or performing routine maintenance, this bearing retainer delivers reliable performance and proper fitment where it matters most.
Key Features
• Replaces OEM part number: 41231‑323‑020
• Rear wheel left bearing retainer for secure wheel bearing placement
• Designed to maintain proper bearing alignment and wheel rotation
• Durable construction for long‑lasting use
• Our Part Number: 99‑4859
• Honda part name: Retainer, Rr. Wheel Bearing
Fitment / Compatibility
• CB500K (1971‑73)
• CB550K (1974‑78)
• CB550F (1975‑77) Supersport
Check the listed model and year, then read any fitment notes in the description.
| Make | Model | Year |
|---|---|---|
| Honda | CB550K0 | 1974 |
| Honda | CB550K1 | 1975 |
| Honda | CB550K2 | 1976 |
| Honda | CB550K3 | 1977 |
| Honda | CB550K4 | 1978 |
| Honda | CB550F1 | 1975 |
| Honda | CB550F2 | 1976 |
| Honda | CB550F3 | 1977 |
| Honda | CB500K0 | 1971 |
| Honda | CB500K1 | 1972 |
| Honda | CB500K2 | 1973 |
No listed models match your search.
Free ground shipping over $50
To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.
| Destination | Delivery time |
|---|---|
| USA | 4–7 business days |
| Canada | 2–6 business days |
Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.
60-day returns on eligible parts
No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.
Electrical parts are excluded from standard returns. Check return eligibility.
Start your return below. Wait for our instructions before mailing a part back.
Start a returnOther shipping options
Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.
Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.
Frequently Asked Questions
Which Honda rear-wheel bearing retainer does this replace?
It replaces Honda OEM 41231-323-020 at the left-side rear-wheel bearing location on the listed 1971-1978 CB500K, CB550F and CB550K models.
How many rear-wheel bearing retainers are included?
One left-side retainer is included. The opposite-side hardware is not included and is not interchangeable unless the Honda parts diagram gives the same reference.
What should be checked before removing the old bearing retainer?
Clean the hub, remove any staking or locking feature and confirm thread direction and service-tool engagement in the Honda manual. After bearing service, torque and resecure the retainer as specified and verify the wheel turns smoothly without play.