The Bendix 800453 is an SC-3 single check valve for air brake systems. It is a one-way valve: compressed air passes in one direction and is stopped from flowing back, which helps keep pressure isolated so air held in a reservoir is not lost back through the line if the supply side drops.
That makes it a small but important piece of heavy-duty truck air brake plumbing, where air is routed between the supply and the reservoirs. It is a genuine Bendix part from Pro Gear and Transmission. If you are unsure which check valve your brake circuit calls for, call us and we will help confirm fit.
A factory handling fee of $20.00 per unit is added at checkout.
Features
Genuine Bendix part
SC-3 single check valve
One-way flow: air passes in one direction only
Air brake reservoir check valve
Helps isolate pressure in the air brake circuit
