Precision Works K Series Upper Coolant Housing & Filler Neck K20 K24A1

• 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
• The higher 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, and is also available 16AN fitting (optional, and sold separately)
• Designed for use with a 92-00 Honda Civic radiator cap.
• Uses Type B caps.  Order here.

Installation Note:

• Does not fit with PRB manifold and throttle bodies with cruise control.
• Does not include radiator cap, but you can add one here for just $10!