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DNJ Expansion Plug Kit 1997-2008 Ford, Mercury 4.2L

DNJ Expansion Plug Kit 1997-2008 Ford, Mercury 4.2L

Part number: FPS4123

Regular price $38.99 USD
Regular price Sale price $38.99 USD
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Listed for: 1997–2008 Ford and MercuryFitment notes & questions

Expansion Plug Kit from DNJ, listed for the 1997–2008 Ford and Mercury with the 4.2L engine. Thread type and size must match on both sides; AN, NPT and metric threads do not mix. Part number: FPS4123.

Key features

  • DNJ Brass Freeze Plug Set
  • Made for VIN 2 N/R 12V OHV engines
  • Listed for V6 4.2L 256 OHV 12V engines

Specifications

  • Brand: DNJ
  • Part type: Fitting
  • Part number: FPS4123
  • Engine: 4.2L
  • Engine code: VIN 2 N/R 12V OHV

Fitment for the 1997–2008 Ford and Mercury

  • Years: 1997–2008
  • Vehicles: Ford
  • Cylinders: V6
  • Displacement: 4.2L
  • Engine: 256 OHV 12V
  • Engine codes: TRITON

Check your year, model, engine and trim against this list before you order.

What it does

Fittings and hardware connect lines, hoses and parts securely. 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?
FPS4123 (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 4.2L VIN 2 N/R 12V OHV engine in the 1997–2008 Ford and Mercury. 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

  • Confirm your year, make, model, engine and trim match the fitment listed above (1997–2008 Ford and Mercury 4.2L).
  • Compare part number FPS4123 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.
View full details

DNJ fitting or hardware for the Ford and Mercury: what to know

Thread type and size must match on both sides; AN, NPT and metric threads do not mix.

Fitment notes

  • Listed for: 1997–2008 Ford and Mercury.
  • Model years: 1997–2008. Check your car's year falls inside this range.
  • 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? Send us your year, make, model, engine and trim and we'll check before you order.

Ask about fitment

What else to plan for

  • Hose. Match hose size to the fitting.

More for your car: Mercury Parts Β· Ford Parts Β· Fuel & air intake

Questions about Ford and Mercury fitting or hardware

Will this fit my Ford and Mercury?
It is listed for the 1997–2008 Ford and Mercury. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
Does it need thread sealant?
NPT threads do; AN and flare fittings seal on the flare and should go on dry.
Where do specs and warranty details come from?
From DNJ. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

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