Description
Product Overview
The DNJ Freeze Plug Set is a brand‑new, brass‑crafted replacement designed for 5.7L V8 OHV naturally aspirated engines across the 2003‑2016 Chrysler, Dodge, Jeep and Ram line‑up. Each plug measures 4 × 4 × 1 inches and weighs 5.17 lb, offering a robust yet lightweight solution. Brass provides superior corrosion resistance compared with standard steel plugs, extending service life and maintaining optimal coolant pressure. The set includes the exact OEM part number FPS1160, ensuring a seamless fit without the need for modifications.
Usage
These freeze plugs are installed during routine engine maintenance, coolant system repairs, or when replacing damaged plugs after overheating incidents. Ideal for both DIY enthusiasts and professional technicians, the plugs fit directly into the factory‑specified locations on the engine block, restoring the cooling system’s integrity. Suitable for daily driving, heavy‑duty towing, and high‑temperature operating conditions common to V8 powertrains.

Why Choose Us
DNJ Engine Components brings over 30 years of expertise in domestic and Japanese engine parts. Each freeze plug undergoes rigorous quality testing to meet or exceed OEM specifications. Our brass material is sourced from certified suppliers, guaranteeing uniform composition and dimensional accuracy. Backed by a 5‑star rating from ten verified customers, this product delivers reliability that mechanics trust.
Key Features
- Premium brass construction for exceptional corrosion resistance
- Exact OEM fit – matches part number FPS1160
- Designed for 5.7L V8 engines in Chrysler, Dodge, Jeep, Ram
- Lightweight yet durable, reducing overall engine weight
- Easy installation with standard tools, no special equipment required
FAQ
Will these plugs fit my 2005 Jeep Grand Cherokee?
Yes. The DNJ Freeze Plug Set is compatible with all 2003‑2016 models that use the 5.7L V8 engine, including the 2005 Jeep Grand Cherokee.
Do I need to replace all plugs at once?
While it’s not mandatory, replacing all freeze plugs during a coolant system service ensures uniform protection and prevents future leaks.
Can I install the plugs without removing the engine?
Yes. The plugs are accessed from the engine block exterior; removal of major components is not required.
What torque specification should I use?
Apply a torque of 18‑22 lb‑ft to secure the plug without over‑tightening, following the vehicle’s service manual.
Is there a warranty?
DNJ offers a limited one‑year warranty against material defects for this freeze plug set.





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