Here is the K-Tuned 45 degree angled type upper coolant housing for K20Z3 & K24A2/3/4 (excl.K24A1) cylinder head applications. This housing follows the OEM 45⁰ angle to keep in line with the factory radiator hose configuration and is made to fit both K20Z3 and K24A2/A3/A4 engines (excluding K24A1). There are three available hose outlet types and optional remote filler neck add-on.
These housings will provide several unique advantages over the stock units. The hose outlet on the K-Tuned housing pivots slightly, allowing approximately 15 degrees of angle adjustment. This is helpful when compared to the fixed the factory outlet that always seems to put the upper rad hose in the path of the intake piping. There are three available hose outlets to work with any radiator hose setup. Choose the standard 1.25” hose fitting outlet for use with regular rubber or silicone rad hoses or you can choose -12AN or -16AN fittings.
An optional integrated Filler Neck is available that 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 optional Filler Neck housing carries the same optional hose fittings and is designed for use with an OEM 92-00 Honda civic type radiator cap or K-tuned rad cap (cap not included). This part will be very helpful on an engine that already has a bad reputation for coolant bleeding.
The K-Tuned Upper Coolant Housing will compliment the K-tuned swivel neck thermostat and water pump block off plate kit. All of these parts allow plenty of options for custom and race engine cooling setups.
See pull down menu for coolant housing options.
- This is an older design that is being phased out, limited stock on hand.
- Optional taller filler neck available separately.
- Not compatible with K20A/A2/A3/Z1 and K24Z/K24Y series (2012-15) cylinder heads.