Free Shipping on orders over $100

Orders will not ship until March 15th

Due to COVID-19 affecting the Diesel industry, some orders may take longer to ship. ZZ Diesel is committed to getting you the parts you need during this time.

12479390 White Vent CapMedium
View Larger
0 Star Rating
 (Be the first to Write a Review)

White Vent Cap, Front Differential for Synthetic Fluid, 2001-2003 GM 6.6L Duramax LB7

SKU: 12479390  
Easy install, threaded and comes with proper o-ring seal for your 2001, 2002, 2003 GM 6.6L Duramax LB7

Early trucks ( 2001-2003) came from GM with a vent cap in the front diff that may not be compatible with synthetic fluid. In fact GM issued a TSB outlining that the vent cap should be replaced if using synthetic fluid. This is only needed if you do not already have the white cap.

Its also common for these to work themselves loose and cause a leak that looks like it is coming from the left front axle seal. Easy install, threaded and comes with proper o-ring seal.

 Average Rating:  0 Star Rating
Write a Review