DNJ
DNJ Expansion Plug Kit 1989-1995 Geo 1.6L
DNJ Expansion Plug Kit 1989-1995 Geo 1.6L
Part number: FPS525
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- Free fitment check before you order
DNJ Expansion Plug Kit. Fittings and hardware connect lines, hoses and parts securely. Part number: FPS525.
Key features
- DNJ Brass Freeze Plug Set
- Made for VIN U 8V SOHC engines
- Listed for L4 1.6L 98 SOHC 16V, 8V engines
Specifications
- Brand: DNJ
- Part type: Fitting
- Part number: FPS525
- Engine: 1.6L
- Engine code: VIN U 8V SOHC
- Model years: 1989–1995
Fitment
- Years: 1989–1995
- Vehicles: GM
- Cylinders: L4
- Displacement: 1.6L
- Engine: 98 SOHC 16V, 8V
What it does
Quality hardware prevents leaks that are hard to chase down later. The right fitting, thread and size keeps a connection sealed and secure, which matters most on fuel, oil, coolant and brake lines.
Installation & tips
- Confirm thread type and size on both sides, and use the right sealant or none as the fitting type requires.
- Hose: Match hose size to the fitting.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
What is the part number of this expansion plug kit?
FPS525 (DNJ). Compare it with the number on your old part or in your parts catalog.
Which engine is it for?
It is listed for the 1.6L VIN U 8V SOHC engine. Check the engine code on your vehicle if it was offered with more than one engine.
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
Before you order
- Compare part number FPS525 with your original part.
Good to know
- Warranty: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.

DNJ fitting or hardware: what to know
Thread type and size must match on both sides; AN, NPT and metric threads do not mix.
Fitment notes
- Engine: match the engine size and code to your vehicle; the same model often came with several engines.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Hose. Match hose size to the fitting.
More for your car: Fuel & air intake
Questions about fitting or hardware
Will this fit my car?
Does it need thread sealant?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.