Pontiac GTO Oil Cooler Adapter

Adapter Fitting: -8AN
$ 136


Pontiac GTO Oil Cooler Thermostat

This is the only oil cooler adapter suitable for both rear sump and front sump vehicles such as the 2004-2006 Pontiac GTO. It is also ideal for rear sump applications where bottom exit lines are preferred, such as the C5 Corvette and 2010-2015 Camaro SS. The EGM-107 is machined from 6061-T6 billet aluminum and is anodized for durability with a custom edge-bonded Viton rubber gasket. This design is patented (US Pat. Number D863,360).

The adapter features an 1/8" NPT port suitable for an oil pressure or temperature sensor, or for a turbo oil supply line. Features standard female -8AN O-ring boss threads for optional anodized adapter fittings in your choice of -8AN, -10AN or -12AN lines.

The optional bracket relocates the hard power steering line out of the way of the adapter in front sump applications such as the Pontiac GTO and Holden VT-VZ platforms. This is a 100% bolt-on solution; no fabrication, bending or line modification is required.

Features and Benefits

  • 100% bolt-on in place of the factory oil bypass cover, just above the oil filter
  • 1/8" NPT port for a sensor or turbo oil feed line
  • New edge-bonded aluminum and Viton gasket for maximum reliability
  • Oil exiting the adapter is filtered oil
  • 6061-T6 billet aluminum construction with black MIL-A-8625 Type II anodized finish
  • Optional aluminum power steering line relocation bracket for front sump applications
  • Includes all necessary hardware for front or rear sump LS oil pans
  • Lifetime Warranty
  • Made in the USA


  • 1x Oil cooler adapter block
  • 2x Black anodized -8AN, -10AN, or -12AN adapter fittings with Viton O-rings (OPTIONAL)
  • 1x aluminum power steering line relocation bracket (OPTIONAL)
  • 1x Edge-bonded Viton and aluminum gasket
  • 1x 1/8" NPT plug with thread sealant
  • All necessary mounting hardware for front sump and rear sump applications

Installation Notes

  • We recommend using one 90-degree and one 45-degree AN fitting to connect the oil lines to this adapter


  • All GM LS engine oil pans, both front and rear sumps
  • Clears LSX block
  • Fits front-sump applications such as:
    • 2004-2006 Pontiac GTO
    • 2001-2005 Holden Monaro (V2 VC8 & VZ)
    • 1999-2006 Holden Commodore (VT, VX, VY & VZ)
    • 1999-2006 Holden Commodore Ute
    • 1999-2006 Holden Statesman (WH, WK, WL)
    • 1999-2006 Holden Caprice (WH, WK, WL)
    • 2001-2006 Vauxhall Monaro
    • Other vehicles equipped with the GM front-sump oil pan part number 12599397, 12599398, 12581209, or 12581210.


    Available in -8AN, -10AN, or -12AN

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