HomeStandard PR21T Fuel Injection Pressure Regulator
Part #: PR21T

Standard PR21T Fuel Injection Pressure Regulator

12 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, Cherokee, Comanche, and Wagoneer
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Reliable Fuel Injection Pressure Regulator for Jeep Models

The Standard PR21T fuel injection pressure regulator is designed to maintain consistent fuel pressure for optimal engine performance. Compatible with Jeep Cherokee, Comanche, and Wagoneer models, this component ensures precise fuel delivery under varying operating conditions.

  • Compatible with Jeep Cherokee, Comanche, and Wagoneer vehicles
  • Maintains stable fuel injection pressure for efficient engine operation
  • Includes caution sheet for safe handling and installation
  • Part number PR21T for easy identification and replacement

Product Details and Specifications

The Standard PR21T fuel injection pressure regulator is engineered to regulate fuel pressure within the fuel injection system, ensuring the engine receives the correct amount of fuel. This part is essential for maintaining the balance between fuel supply and engine demand, which helps prevent issues such as poor fuel economy or engine hesitation. The included caution sheet provides important safety and installation information to assist technicians during replacement.

Applications and Common Issues Addressed

  • Compatible with Jeep Cherokee, Comanche, and Wagoneer fuel injection systems
  • Helps resolve inconsistent fuel pressure problems
  • Addresses engine performance issues related to fuel delivery
  • Prevents fuel leaks and pressure drops in the injection system
  • Supports smooth acceleration and idle stability

Installation Notes and Tips

When installing the Standard PR21T fuel injection pressure regulator, refer to the included caution sheet for safety guidelines. Ensure the fuel system is depressurized before removal to avoid fuel spray. Properly secure all connections and verify there are no leaks after installation. It is recommended to inspect related fuel system components during replacement to maintain overall system integrity.

Quality Assurance and Warranty

Standard parts are manufactured to meet or exceed OEM specifications for fit and function. The PR21T fuel injection pressure regulator undergoes quality control testing to ensure reliable performance. Please consult the product documentation or manufacturer for specific warranty details.

BrandStandard
Part NumberPR21T
ContentsIncludes caution sheet

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1990JeepCherokee4.0LL6N/A
1990JeepComanche4.0LL6N/A
1990JeepWagoneer4.0LL6N/A
1989JeepCherokee4.0LL6N/A
1989JeepComanche4.0LL6N/A
1989JeepWagoneer4.0LL6N/A
1988JeepCherokee4.0LL6N/A
1988JeepComanche4.0LL6N/A
1988JeepWagoneer4.0LL6N/A
1987JeepCherokee4.0LL6N/A
1987JeepComanche4.0LL6N/A
1987JeepWagoneer4.0LL6N/A

* 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:

143-608171192342-1955521067228013-19555800-133835036358983503635FP10128FPR42PR21PRDL133SKPR21

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