Product Description
Industrial Injection PDM-08200 Freeze Plug Retaining Plate w/ O-Ring — 1989–2002 5.9L Cummins
Stop rear freeze plug blowouts before they happen. The Industrial Injection PDM-08200 retaining plate locks the rear core plug in place on the 5.9L Cummins (1989–2002) and includes a quality O-ring to help seal against leaks. It’s a proven upgrade for street, tow, and performance builds running higher cooling system pressure or sustained RPM.
Key Benefits
- Prevents rear freeze/core plug blowout on 5.9L Cummins
- Includes O-ring for reliable sealing
- Simple, durable plate design from Industrial Injection
- Ideal for trucks with elevated boost/RPM or heavy towing
Fitment
- Engine: 5.9L Cummins (6BT 12-Valve 1989–1998; ISB 24-Valve 1998.5–2002)
- Vehicles: 1989–2002 Dodge Ram 2500/3500
- Location: Rear freeze/core plug at back of block
What’s Included
- (1) Freeze Plug Retaining Plate
- (1) O-ring
- Mounting hardware (as supplied by manufacturer)
Recommended Parts & Related Categories (Internal Links)
- Rear Freeze Plug Kits for 5.9L Cummins
- Coolant Bypass Kits (5.9L Cummins)
- More Industrial Injection Parts for Cummins
- Sealants & Thread Lockers
- 5.9L Cummins Cooling System Components
Specifications
| Brand | Industrial Injection |
|---|---|
| Part Number | PDM-08200 |
| Material | Steel plate (hardware as supplied) |
| Finish | Manufacturer standard |
| Includes O-Ring | Yes |
| Install Location | Rear core/freeze plug at back of block |
| Vehicle Fitment | 1989–2002 Dodge Ram 2500/3500 5.9L Cummins (12V & 24V) |
| UPC | — (to be confirmed) |
| GTIN | — (to be confirmed) |
| Prop 65 | Warning: May contain compounds such as nickel that are known to the State of California to cause cancer or reproductive harm. Handle with care. |
| Warranty | Manufacturer limited warranty |
Installation Notes
- Transmission or engine removal may be required for access on some trucks.
- Clean mating surfaces thoroughly; lightly lubricate the O-ring during assembly.
- Use appropriate thread locker and torque hardware per spec.
FAQs
Why do I need a rear freeze plug retaining plate on a 5.9L Cummins?High RPM, heavy towing, or performance cooling system pressure can push out the rear core plug. A retaining plate mechanically locks the plug to prevent coolant loss and potential engine damage.
Does this kit include the actual freeze plug?This part is the retaining plate and O-ring. If you need the rear freeze plug itself, see our selection of rear freeze plug kits.
Will this fit both 12-valve and 24-valve 5.9L Cummins?Yes. It fits 1989–2002 5.9L Cummins engines used in Dodge Ram 2500/3500 trucks (12V 1989–1998 and 24V 1998.5–2002).
Do I need a coolant bypass kit too?Not required, but many performance/tow setups add a bypass to help stabilize pressure at high RPM. Browse coolant bypass kits.
Is there any special sealant needed?Follow the manufacturer’s instructions. We recommend having quality sealant and thread locker on hand.
Why Buy from CPP Diesel
- Curated Cummins parts catalog with performance & reliability in mind
- Fast shipping and knowledgeable support
- Only trusted brands like Industrial Injection
