Precision Works K Series Filler Neck Upgrade For Upper Coolant Housing For K20

Precision Works K-Series Filler Neck Upgrade

Upgrade a non-integrated filler neck upper coolant housing to an optional filler neck.

Fitting is 16AN for AN fitting radiator hose.

• Works with Precision Works K20 Upper Coolant Housing with Hose Fitting
• Installation instruction is not Included