The Right Connection: Brass Heater Hose Fittings & Nipples
A high-quality heater hose is useless if the fitting it connects to is corroded or cracked. The Heater Fittings screwed into your intake manifold and water pump are often the most neglected parts of the cooling system. Over decades, electrolysis eats away the threads from the inside out, leading to sudden failure.
At Old Car Parts NW, we stock authentic NORS (New Old Replacement Stock) and solid brass fittings to ensure a leak-free connection.
Brass vs. Plastic/Pot Metal
Don't risk your engine with cheap plastic connectors that become brittle and snap under heat. Our inventory focuses on solid brass components (often from brands like Four Seasons, Weatherhead and Edelmann) that can withstand years of engine vibration and thermal cycling.
Find Your Angle
Space is tight in a vintage engine bay. We carry a wide variety of configurations to route your hoses perfectly:
Elbows (45° & 90°): Essential for clearing air cleaners, alternators, and valve covers.
Straight Nipples: Standard barbed fittings for water pumps.
Reducers & Adapters: Connect a 1/2" NPT hole to a 5/8" hose without messy multiple adapters.
Sizes: We stock the standard vintage sizes: 3/8", 1/2", and 3/4" NPT threads matching to 5/8" and 3/4" heater hose barbs.
