This genuine Honda 16mm lock nut is used on compatible clutch basket and oil filter rotor assemblies. It is a small hardware part, but it matters when you are servicing clutch or oil filter rotor components and want the correct factory-style Honda lock nut instead of reusing a worn or damaged one.
Key Features
• Genuine Honda OEM part
• Honda OEM number: 90231-KCS-651
• Replaces / supersedes: 90231-200-010, 90231-028-000, 90231-030-000, 90231-703-000, 90231-KCS-920, 90232-700-000, 90231-200-000
• 16mm lock nut for clutch basket and oil filter rotor applications
• Sold as: each
• Quantity required: commonly 1 where used
Fitment / Compatibility
• CB750K (1969-1982)
• CB750L (1979)
• CB750SC (1982-1983)
Buyer Notes
Confirm the part number and location in your parts diagram or service manual before ordering, especially if the engine or clutch assembly has been changed.
Shipping Information
We ship orders daily from our warehouse, and most orders leave either the same day or the next business day after they are placed.
As soon as your order ships, we’ll send you an email with tracking information. You can also log in to your Account page at any time to track packages, review past orders, print invoices, and more.
We offer free ground shipping on all orders over $50 USD to the United States and over $50 CAD to Canada.
Standard delivery typically takes 3 to 7 business days. If you need your order sooner, expedited shipping options are available at checkout.
Orders below the free shipping threshold will have standard shipping charges applied.
Qualifying orders may be combined into a single shipment.
Orders are processed Monday through Friday. We are closed on Saturday and Sunday.
Orders shipping to Alaska, Hawaii, Puerto Rico, APO/FPO addresses, and some Canadian destinations may be subject to standard shipping rates.
Returns
We never charge restocking fees.
Ordered the wrong parts? Sold the bike before you had a chance to install them? Wrong size or wrong color? No problem. We accept returns on unused and unaltered items within 30 days of receipt, excluding electrical parts.
We believe in treating customers fairly and handling returns with a friendly, common-sense approach. When you are reasonable, so are we.
Once we receive and inspect your return, a full refund of the purchase price will be issued. Refunds are processed within 10 business days of receiving the returned item, less any original and/or return shipping charges.
Refunds are issued back to the original payment method used at the time of purchase. Any fees paid for international duties, taxes, and/or brokerage charges are non-refundable.
To exchange an item, simply follow the return steps below. Once your refund has been processed, place a new order for the replacement item or items you need.
All returns must include the original packaging and must be shipped in a proper shipping box.
Return shipments that do not meet all of the above criteria will be refused and returned to sender.
Return Steps
Please email us at helpdesk@oldbikebarn.com with your order number, the part you would like to return, and the reason for the return. We will reply within 1 business day with return authorization and return instructions.
Still have questions? Submit a support ticket through our Contact Us page.