Power Driven Diesel’s new and improved rear billet freeze plug bolts securely in place so it won’t blow out, and seals with an o-ring, so it will not leak.
We have modernised the port to -8ORB for more reliable sealing. Included is a -8ORB plug.
A -8ORB to -8AN elbow can be used for those that want to use a coolant bypass system.
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