Restore correct dash vent function with authentic replacement knobs.
Bring back factory operation to your Corvette’s dash vents with these reproduction 1972–1977 Corvette C3 Dash Fresh Air Vent Outlet Knobs (GM reference 3996896). Worn, missing, or stripped knobs make it difficult to control air flow properly. These black plastic replacements are designed to self-thread onto the shut-off valve rod, restoring smooth vent operation and a correct interior look.
Fits the Following Corvette Models:
C3 Corvettes: 1972–1977
Material/Finish
Durable black plastic construction
Factory-correct finish for 1972–1977 models
Dimensions
Designed to factory-spec dimensions for OE fitment
Features/Benefits
Direct replacement for GM reference part number 3996896
Screws directly onto air vent deflector closure shaft
Restores missing or stripped dash vent outlet knobs
Self-threading design for easy installation
Sold as a pair for left and right outlets
Note: 1969–1971 vent knobs were chromed plastic; either style will fit factory outlets
Sold individually, 2 required per Corvette
Because Details Matter A missing or stripped vent knob might seem minor, but it disrupts both the function and appearance of your interior. Restoring these small details ensures your Corvette’s dash operates and looks exactly as Chevrolet intended—because details matter.
Buy 2 or More and Save Up To $1.00 Each