Product information
Overview
The 25 mm Extended Crankshaft Compensator Sprocket Nut, OEM 40392-91 - Silver for 1991-2006 Big Twin secures the compensator stack at the crankshaft with the stated extension length. It cross-references OEM 40392-91. The item is supplied only in the configuration and quantity listed below.
Key Specifications
- Extension Length: 25 mm
- Package Quantity: 1 Nut
- OEM Cross-Reference: 40392-91
Fitment
Harley-Davidson: 1991-2006 Big Twin compensating-sprocket assemblies using crankshaft nut OEM 40392-91. This is the 25 mm extended nut variant; verify thread, extension length and compensator stack before ordering.
Package and Purchase Notes
Confirm the original component, motorcycle model, model year, primary-drive or clutch configuration, critical dimensions, and OEM reference before ordering. This listing does not imply compatibility outside the stated application. Installation and final clearance checks should be completed by a qualified technician using the applicable service procedure.
Fitment
Specifications
- Extension Length
- 25 mm
- Package Quantity
- 1 Nut
- Color
- Silver
- Finish
- NOT_APPLICABLE
- Material
- Steel
Shipping & support
Shipping
Taiwan orders are prepared after payment and inventory confirmation. Shipping fees and any free-shipping threshold are shown at checkout.
View shipping policyReturns
Request a return within 14 days after receiving the item. Wait for return approval and shipping instructions before sending anything back.
View returns and warrantyFAQ
Before ordering, compare the SKU, OEM number, brand part number, model year, fitment notes, and product images.
View FAQsFitment help
If fitment is uncertain, send the SKU or OEM number together with the motorcycle year and model before checkout.
Contact fitment support