The Enginetech PK278 is a steel engine expansion plug set for 1990-2011 Ford/Mazda/Mercury 4.0L engines.
Specifications
| Part Number | PK278 |
| Product Type | Steel Freeze Plug Set |
| Material | Steel |
Vehicle Fitment
- 1990-1997 Ford Aerostar 4.0L 245ci V6 OHV [VIN:X]
- 1990-2000 Ford Ranger 4.0L 245ci V6 OHV [VIN:X]
- 1991-1994 Mazda Navajo 4.0L 245ci V6 OHV [VIN:X]
- 1991-2000 Ford Explorer 4.0L 245ci V6 OHV [VIN:X]
- 1994-2000 Mazda B4000 4.0L 245ci V6 OHV [VIN:X]
- 1997-2010 Ford Explorer 4.0L 245ci V6 SOHC [VIN:E]
- 1998-2002, 2004-2010 Mercury Mountaineer 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2003 Ford Explorer Sport 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2005, 2008-2010 Ford Explorer Sport Trac 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2011 Ford Ranger 4.0L 245ci V6 SOHC [VIN:E]
- 2002-2005 Ford Explorer 4.0L 245ci V6 SOHC [VIN:K]
- 2002-2005 Mercury Mountaineer 4.0L 245ci V6 SOHC [VIN:K]
- 2004-2005, 2007-2008, 2010 Ford Explorer Sport Trac 4.0L 245ci V6 SOHC [VIN:K]
Enginetech freeze plug sets (also known as expansion plugs, core plugs,
or Welsh plugs) are produced using high quality cold-rolled steel with zinc plating for
excellent corrosion resistance, or brass for superior long-term protection in severe-duty
and high-mileage applications. Enginetech offers a full selection including standard cup
design, reverse taper, disc, and deep cup styles. Always replace all expansion plugs
during a complete engine rebuild - old plugs left in place are a common source of coolant
leaks on rebuilt engines. Apply a thin coat of thread sealant or anaerobic gasket maker
to the plug outer diameter before installation. Verify all plug diameters match your
engine block before ordering.
