SUMMER PROMO!!! TAKE AN EXTRA 2% OFF OF YOUR SUBTOTAL OF 150.00 OR MORE!! INSTANT SAVINGS!!

Engine Crankcase Vent Valve - GM (12739531)

2025-2026 GM - 12739531

Engine Crankcase Vent Valve - GM (12739531)

2025-2026 GM - 12739531

Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12739531

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12739531

  • Positions: Upper
  • Other Names:

    Separator, F (S)Separator

  • Description:

    # Engine Crankcase Vent Valve Description Genuine GM OEM Engine Crankcase Vent Valve (MPN: 12739531) is a critical upper engine component designed to manage crankcase pressure and oil vapor separation in 6.6L diesel engines. This oil separator assembly with included gasket prevents excessive pressure buildup while minimizing oil consumption and emissions on select General Motors diesel-powered vehicles. OEM replacement parts ensure proper engine ventilation, performance, and longevity. - Genuine OEM General Motors crankcase vent valve and oil separator assembly with gasket - Factory-engineered for 6.6L diesel engine upper component applications on select GM vehicles - Regulates crankcase pressure and separates oil vapors to optimize engine efficiency and reduce emissions - Authentic General Motors replacement part engineered to exact OEM specifications for reliable fitment - Genuine condition with manufacturer quality assurance and warranty coverage

  • MSRP: $149.56
  • Discount: $66.70 (44.6% off)
  • Sale Price: $82.86
OR
My Location

Packages shipped within the U.S. and Puerto Rico will automatically be protected from any loss, damage, and theft. Learn More

Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products
Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12739531

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12739531

  • Positions: Upper
  • Other Names:

    Separator, F (S)Separator

  • Description:

    # Engine Crankcase Vent Valve Description Genuine GM OEM Engine Crankcase Vent Valve (MPN: 12739531) is a critical upper engine component designed to manage crankcase pressure and oil vapor separation in 6.6L diesel engines. This oil separator assembly with included gasket prevents excessive pressure buildup while minimizing oil consumption and emissions on select General Motors diesel-powered vehicles. OEM replacement parts ensure proper engine ventilation, performance, and longevity. - Genuine OEM General Motors crankcase vent valve and oil separator assembly with gasket - Factory-engineered for 6.6L diesel engine upper component applications on select GM vehicles - Regulates crankcase pressure and separates oil vapors to optimize engine efficiency and reduce emissions - Authentic General Motors replacement part engineered to exact OEM specifications for reliable fitment - Genuine condition with manufacturer quality assurance and warranty coverage

Vehicle Fitment

No application/vehicle fitment information available for this product
Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

Product Reviews

Ask Our Team

Londoff Discount Parts

Order your Engine Crankcase Vent Valve (12739531) today and have it in your hands in a matter of days. Your Engine Crankcase Vent Valve will be backed by a warranty and guaranteed to fit your 2025-2026 vehicle. 

OEM parts at great prices. That is what we stand for.

Shop OEM parts by model and catalog by first selecting your make below:

| Buick | Cadillac | Chevrolet | GMC |

| Hummer | Oldsmobile | Pontiac | Saturn |