1968-1972 C3 Corvette Wiper Door Cowl Reinforcement Plate 3921586 - OEM Number(s) (3921586)
Keep your classic C3 looking sharp and operating like it should with the 1968-1972 Corvette Wiper Door Cowl Reinforcement Plate. This essential structural component reinforces the mounting area for the wiper door cowl—a notorious weak spot in early C3s—restoring rigidity and support where it matters most.
Over time, stress and flex from wiper door operation, road vibration, and even minor front-end impacts can cause metal fatigue around the cowl area. That’s where this OE-style reinforcement plate steps in. It bolts into place just like the original, using factory mounting points, and strengthens the cowl so your wiper door opens and closes smoothly and reliably.
Precision stamped to match original specifications, this reinforcement plate is an ideal solution for restorers looking to maintain factory integrity or drivers wanting long-lasting functionality.
Why It Matters: Without this reinforcement, your wiper door assembly is vulnerable to sagging, misalignment, or failure. Installing a new cowl reinforcement plate helps eliminate these issues—preserving both function and appearance.
Key Details:
-
Direct replacement for GM part number 3921586
-
Restores structural integrity to wiper cowl area
-
Critical for smooth wiper door operation on 1968–1972 Corvettes
-
Factory-correct fit and finish
-
Made from durable stamped steel
-
Sold Individually
-
3 Required for Complete Installation
Don’t let a weakened cowl compromise your Corvette’s style or function. Reinforce it the right way—order your Wiper Door Cowl Reinforcement Plate today and protect your classic from preventable wear.
Also known under these part numbers: (For reference only)
- 3921586
- 653028
- 686420085560
- E6535
- WAA REINFORCEMENT
- WW-285