1958-1962 Front License Bumperettes Click Here To Order

1956-1958 Wheel Covers with Spinners  Click Here to Order

1959-1962 Wheel Covers with Spinners  Click Here to Order

1965 Wheel Covers with Spinners  Click Here to Order

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1965-1967 Corvette Side Exhaust Cover U-Nuts


  • Set of 14 u-nuts
  • Includes “M” logo on each nut
  • Original GM Part# 3880494


1965-1967 Corvette Side Exhaust Cover U-Nuts

Factory side exhaust equipped cars used a special u-nut to attach the side exhaust cover.  We have reproduced the GM 3880494 u-nuts that were used in 7 locations on each side of a 1965-1967 factory side exhaust car.

The front bracket of the exhaust cover attaches to one inside the wheel well area. They are unique as there was no other application in the GM parts system for these items. These are new reproductions of the original part. There has been no correct reproduction of these nuts, just a generic version u-nut that has a hex steel nut instead of the square nut like the original. Judges look for these! Get those extra points!   Note the “M” logo on each nut.

CSMfg Part# 1164

Remember, we ship orders of $40 or more FREE to the 48 contiguous United States!

Additional information

Weight0.2 lbs
Dimensions4 × 3 × 0.75 in

1963, 1964, 1965, 1966, 1967

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