Product Description
Stop blown rear freeze plugs before they happen. The INDUSTRIAL INJECTION PDM-08208 rear freeze plug retaining plate anchors the factory plug on 1989–2002 5.9L Cummins (12-valve & 24-valve), preventing coolant loss on hard pulls and high-RPM use. Simple, proven insurance for work, tow, and race builds.
Fitment
- 1989–1998 5.9L Cummins 12-Valve (Dodge Ram)
- 1998.5–2002 5.9L Cummins 24-Valve (Dodge Ram)
What’s Included
- (1) Rear freeze plug retaining plate
- Mounting hardware
Why It Works
- Mechanical retention keeps the OE rear core plug from pushing out under coolant pressure
- No coolant drain or plug removal required when the OE plug is still in place
- Quick install with transmission out or during clutch/transmission service
Recommended Parts (CPP links)
- Industrial Injection PDM-07001 Side Freeze Plug Plate (89–02)
- CPP Billet Rear Freeze Plug (89–02) — replacement style
- BD Diesel 1040022 Frost Plug Plate (89–02) — alternative
- Shop All Freeze Plugs & Plates
Install Notes
- This plate is designed to retain the factory rear plug. If your rear plug has already blown out, use a replacement rear plug before installing the plate.
- Best time to install is with the transmission removed; follow torque specs and use threadlocker where applicable.
FAQ
Does this replace the factory rear freeze plug?No—this is a retaining plate that holds the existing rear plug in place. If the plug is missing or leaking, replace the plug first, then add this plate for insurance.
Will I need to drain coolant?
Typically no, because you are not removing the OE rear plug when using a retaining plate. Draining may be required if you also service other cooling components.
When should I install it?
Any time the transmission is out—clutch, transmission, or rear main seal service—so you have easy access to the rear of the block.
Is this okay for stock trucks?
Yes. It’s inexpensive protection for stock to high-power builds, especially those that tow, sled pull, or see extended high RPM.
