K Series Upper Coolant Housing w/ Filler

The integrated filler clears up more room for big turbo setups. The filler neck comes off the top of the housing and can be used to relocate the radiator cap to a higher point on the engine itself. The new location is the highest point of the cooling system and allows air pockets to easily escape during the coolant bleeding process.

The filler neck comes standard with 1.25" hose fitting, but is also available with a -16AN fitting. It was designed for use with an OEM 92-00 Honda Civic radiator cap.

Applications: 

• K20A, K20A2, K20A3, K20Z1, K24A1 cylinder heads

Key Features:

• Precision CNC machined from billet 6061 aluminum

• Integrated filler neck with more clearance for turbo setups

• The filler neck is removable from the housing and can be relocated to a higher point

• Higher point of the cooling system, allows air pockets to easily escape during bleeding process

• Comes standard with 1.25" hose fitting

• Also available with -16AN fitting (please select from drop down)

• Designed for use with a 92-00 Honda Civic radiator cap.

• Uses Type B caps