OPGI.com works best with JavaScript enabled.
Please finalize your shopping cart. Scheduled maintenance will begin at 1 AM PT, and will last 60 minutes.
Early Black Friday! Save up to 20% off Restoration! - use code: BIGDEAL20W
  • As seen on
  • Rust Valley Restorers
  • Wrench'd

Vent Valve, Differential, 1966-77 BOP/Chevrolet

Vehicle Specific View fitment for 11 models
Part# C220128
Sold As Each
Eligible for Price Match
$9.99
List Price: $11.95
You Save 16%
In Stock
available for immediate delivery
Add To Wishlist 

Factory duplicate

This vent is located on top of the differential housing. It is a necessary plastic vent that is often broken or distorted over the years. One per vehicle.

Find Item In These Catalogs

  • 2024 Chevelle, El Camino 64-77 238
  • 2024 Cutlass, F-85 & 442 61-77 151
  • 2024 Grand Prix 1962-77 116
  • 2024 GTO, LeMans & Tempest 165
  • 2024 Monte Carlo 70-77 111
  • 2024 Skylark, GS & GSX 61-72 125
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1965–1972 Buick Skylark  
1964–1977 Chevrolet Chevelle one per car
1964–1977 Chevrolet El Camino one per car
1970–1977 Chevrolet Monte Carlo One Required Per Car
1964–1977 Oldsmobile Cutlass  
1963–1976 Pontiac Bonneville  
1963–1976 Pontiac Catalina  
1963–1977 Pontiac Grand Prix  
1964–1973 Pontiac GTO one per car
1964–1973 Pontiac LeMans one per car
1964–1970 Pontiac Tempest one per car
  • Headshot of OPGI Employee
    Have a Question? Chat with an Expert or Call 1‑800‑243‑8355
    Mon‑Fri 8:00‑4:30 PT Experts are currently offline
  • Low Prices. Price Match Guarantee
  • GM Automotive Experts. We know car parts
  • Guaranteed Fitment. 100% factory accurate
  • Superior Selection. Largest selection of in-stock parts

Customers Who Viewed This Item Also Viewed

Reviews (13)

UH OH! Product reviews didn't load.
Please reload the page, or unblock our review partner Yotpo.com.
Vent Valve, Differential, 1966-77 BOP/Chevrolet
Vent Valve, Differential, 1966-77 BOP/Chevrolet