Package includes:
One billet aluminum spacer plate, one air bleeder screw and 4 bolts.

Description:
1.The spacer plate is made of CNC machined from solid billet 6061-T6 aluminum and anodized red for strength and corrosion protection.
2.The air bleeder screw is the same material and the same color as the spacer plate,No more stripping of cheap plastic bleeder screw that can break with routine servicing over a vehicle lifetime.
3.The thread length of short bolt is 30mm,The thread length of long bolt is 45mm. Use this aluminum spacer to relocate the Duramax Filter Head outboard by 1/2". This allows for much easier access to the filter for quickly and easily filter changes every time!