The Colony Machine Upper Fork Bearing Adjustment Nut provides precise preload adjustment and secure fastening for your front steering neck assembly. Designed as a direct-fit replacement for steering bearing jam nuts, it ensures proper steering head alignment and smooth front-end handling.
Precision-engineered in the USA, this durable hardware component directly replaces OEM part numbers 48330-48A and 48332-48. It offers an exact fit and dependable service life for maintaining or rebuilding your vintage or modern suspension assembly.
Key Features
Brand
Colony Machine
Product Type
Upper Fork Bearing Adjustment Nut
Manufacturer Part Number
3228-1
SKU
CM-3228-1
Country of Origin
USA
OEM Replacement Numbers
48330-48A, 48332-48
Weight
0.15 kg
Compatible Front End Size
41mm Wide Glide
Highlights
Replaces OEM part numbers 48330-48A and 48332-48
Engineered for precise fork stem bearing adjustment
Manufactured in the USA by Colony Machine
Compatibility
1949–1984 Harley-Davidson FL & FX 41mm Wide Glide Big Twin (with 4-speed transmission)
1984–2015 Harley-Davidson FX Softail (Except FXSTD Deuce)
1993–2005 Harley-Davidson FXDWG Dyna Wide Glide
2002 Harley-Davidson V-Rod
Does NOT fit 2000–2006 FXSTD
Frequently asked questions
Which motorcycle models are compatible with this adjustment nut?
It fits FL & FX 41mm Wide Glide Big Twin models (1949–1984 with 4-speed transmission), FX Softail (1984–2015), FXDWG Dyna Wide Glide (1993–2005), and V-Rod (2002). It does not fit FXSTD Deuce models (2000–2006).
Which OEM part numbers does this nut replace?
This nut directly replaces Harley-Davidson OEM part numbers 48330-48A and 48332-48.
Where is this part manufactured?
The adjustment nut is manufactured in the USA by Colony Machine.
What complementary hardware is suggested for installation?
Suggested matching components include the Colony Machine Fork Stem Cap (CM-2058-1) and Stem Nut & Lock Washer (CM-2184-2).