Norlin Historic CAB Bell Truss Rod Cover for Gibson® Guitars

Gibson® first introduced adjustable truss rods in 1921, invented by Ted McHugh, their factory manager. Early truss rod covers were simple, narrow plates. By the mid 1930s , Gibson® standardized the bell shaped cover you recognize today. Through the 1940s and 1950s, nearly every Gibson® guitar carried this small but iconic detail. The design has remained essentially unchanged for decades and has become an industry standard.

Cellulose Acetate Butyrate (CAB) is an old-school bio-plastic prized for its durability, flexibility and natural aging properties. Unlike many modern plastics, it develops character over time, making it a favorite material among restorers, collectors and builders seeking period-correct components.

The vintage-correct shape and dimensions were reverse engineered from an authentic 1959 Gibson® Les Paul®, ensuring an exceptionally accurate reproduction of one of the most iconic truss rod covers ever produced.

Individual Norlin® historic bell truss rod cover for Gibson® guitars. Does not include mounting hardware. Compatible with Heritage® and Jimmy Wallace Guitars®.

• Base Material: Cellulose Acetate Butyrate
• Country of Manufacture: Made in USA
• Mounting Hole Distance: 52mm
• Orientation: Right-Handed & Left-Handed

Available in:

• Abalone Shell
  • SKU: DM008
• Acrylic
  • SKU: F4007
• CAB
  • SKU: TE2013
• Maple Wood
  • SKU: DM006

** MATCHING HARDWARE **

Truss Rod Cover Mounting Screws

• Gold
  • SKU: 1824G
• Nickel
  • SKU: 1824N

Norlin® is the historic brand you’ve trusted since 1969. Specializing in replacement guitar parts to repair and refurbish vintage classics. We’re proud to usher in a new Norlin® era.'

Another Quality Product from Norlin®