Seals unused coolant ports with a precise, leak-free fit. Perfect for clean and reliable custom or performance builds.
When you're simplifying your cooling system or removing unnecessary components, you need a clean and reliable way to seal off unused coolant ports. That’s exactly what the IRP B85 Billet Coolant Block-Off is made for.
Machined from solid billet aluminum, this block-off piece is designed to fit perfectly and do one job right - keep your system sealed and leak-free. No shortcuts, no guesswork.
Whether you're building a track car, running a custom setup, or just cleaning up the engine bay, this is a simple but essential part that helps everything stay tidy and reliable.
1 x billet coolant block-off plug
Intended for modified vehicles where parts of cooling system are removed or rerouted.