Northern Radiator built this cooling system hose fill (Model Z12006) for technicians and DIYers who need to service, flush, or refill a cooling system. It helps bleed air out of the system, which lowers the risk of overheating and cavitation damage. Whether you are rebuilding a classic engine or just doing routine coolant work, this adapter belongs in your toolbox.
Made by Northern Radiator, a trusted OEM supplier, it presses directly into standard radiator neck openings. Measuring 6.1 x 2.2 x 9 inches and weighing just 0.4 lbs, it fits easily in tight engine bays and won't add weight. Durable construction stands up to repeated use across many coolant system jobs.
Shop mechanics, restoration pros, and serious garage builders use this adapter on domestic and import vehicles alike. It comes in handy during head gasket repairs, water pump swaps, or thermal upgrades where keeping air out of the system is critical to good engine performance.
| Item Returns | This item can be returned |
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