ACDelco 12479390 OE White Vent Cap, Front Differential for Synthetic Fluid, 2001-2003 GM 6.6L Duramax LB7
ACDelco 12479390 OE White Vent Cap, Front Differential for Synthetic Fluid, 2001-2003 GM 6.6L Duramax LB7 is backordered and will ship as soon as it is back in stock.
Shipping & delivery
Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).
Shipping policy · Returns · Fitment questions? (561) 207-7988
Delivery and Shipping
Delivery and Shipping
Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.
Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.
Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.
ACDelco 12479390 OE White Vent Cap, Front Differential for Syntheti...
ACDelco 12479390 OE White Vent Cap, Front Differential for Synthetic Fluid, 2001-2003 GM 6.6L Duramax LB7 is backordered and will ship as soon as it is back in stock.
Description
Description
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.
Fitment & installation
Fitment & installation
Check the selected part against your vehicle. Need help? Call (561) 207-7988.
Selected part: 12479390
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Read FOX’s application notes for part 987-24-001 (rear shock)
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