1984-1996 C4 Radiator Overflow Tank 10239666 - OEM Number(s) (10239666)
Restore Cooling System Confidence and Underhood Appearance
Discolored, cracked, or leaking coolant tanks are a common aging issue on C4s. This 1984–1996 Radiator Overflow Tank is a direct-fit replacement for GM part number 10239666, restoring both proper coolant reservoir function and that clean, factory look under the hood. Molded in correct translucent white plastic, this reservoir installs easily in place of the original—no modifications required.
Features
• Fits all 1984–1996 C4 models
• Direct replacement for GM part number 10239666
• Correct translucent white plastic for OE appearance
• Helps maintain proper coolant expansion and recovery
• Restores clean, original look to engine bay
Because Details Matter
• Cap not included—reuse your existing or source new
• Molded plastic construction matches original fit and finish
• Simple bolt-in installation with factory mounting points
• Improves cooling system reliability and safety
• Ideal replacement for aged or leaking tanks
Refresh your C4's engine bay and cooling system function with this reproduction overflow tank—made to match the original in form, fit, and function.
Also known under these part numbers: (For reference only)
- 10239666
- 145001
- 244422
- 25-177156-1
- 50796
- 609074
- 686420023586