HomeEngine > Cylinder Block ComponentsDJ Rock P420 Engine Piston Set
Part #: P420

DJ Rock P420 Engine Piston Set

N/A
⚙️ 14 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$126.04Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mercury, Focus, Escort, and Tracer
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Piston Set for Ford and Mercury Vehicles

The DJ Rock P420 engine piston set is designed specifically for Ford Escort, Ford Focus, and Mercury Tracer models. This piston set provides a precise fit and reliable performance for cylinder block repairs and engine rebuilds.

  • Compatible with Ford Escort, Ford Focus, and Mercury Tracer
  • Part number P420 ensures exact replacement fit
  • Engine piston set designed for cylinder block components
  • Manufactured by DJ Rock for consistent quality

Product Details and Specifications

The DJ Rock P420 engine piston set is engineered to meet the specifications required for the cylinder block components of select Ford and Mercury vehicles. This set is intended for use in engine rebuilds where piston replacement is necessary due to wear or damage. The pistons are manufactured to maintain proper compression and engine efficiency, supporting the overall performance of the vehicle’s engine. The P420 part number corresponds to a piston set compatible with the Ford Escort, Ford Focus, and Mercury Tracer, ensuring a direct fit without modification.

Applications and Problem Solving

This engine piston set is used primarily in the repair and maintenance of the cylinder block assembly. It addresses several common engine issues, including:

  • Worn or scored pistons causing loss of compression
  • Engine knocking or piston slap due to damaged pistons
  • Reduced engine performance from piston ring failure
  • Overheating issues related to piston damage
  • Restoring engine efficiency during rebuilds

Installation Notes and Tips

When installing the DJ Rock P420 piston set, ensure the cylinder block is thoroughly cleaned and inspected for wear or damage. Proper lubrication of pistons and rings during installation is critical to prevent initial wear. Follow manufacturer torque specifications for piston pin and connecting rod assembly. It is recommended to replace piston rings and bearings simultaneously to maintain engine integrity.

Quality Assurance and Warranty

DJ Rock manufactures the P420 piston set to meet industry standards for durability and performance. While specific warranty details are not provided, DJ Rock products typically undergo quality control inspections to ensure reliability. Using this piston set helps maintain engine longevity when installed according to guidelines.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004FordFocus2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2003FordFocus2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2002FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2002FordFocus2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2001FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2001FordFocus2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2000FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
2000FordFocus2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1999FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1999MercuryTracer2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1998FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1998MercuryTracer2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1997FordEscort2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420
1997MercuryTracer2.0LL4N/ASet Services Complete Engine; 1.5x1.5x3.0; w/ Dome Top; 1.5x1.5x3.0 Must Use w/ PR420

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.