This is the Alliant Power AP55017, a remanufactured set of six fuel injectors for the Volvo D13 and Mack MP8 with the Delphi F2E fuel system. An F2E engine uses two different injectors, pumping and non-pumping, and Alliant Power lists this set as three of each: three pumping injectors (Delphi EX631133) and three non-pumping injectors (Delphi EX631134). It is sold as a set, not as single injectors, and a refundable core applies to the set.

The pumping injector replaces Volvo and Mack 22378579 and the non-pumping injector replaces 22378580. If you only need one injector, both are listed on their own as Delphi EX631133 and Delphi EX631134. Send us your engine serial number before you order a set so we can match it.

Specifications

Fits / Applications

• Volvo D13 with the Delphi F2E fuel system
• Mack MP8 with the Delphi F2E fuel system
• Old injectors carry Volvo or Mack 22378579 (pumping) and 22378580 (non-pumping)
• Set of six: three pumping and three non-pumping injectors

Keep pumping and non-pumping injectors in their own positions and check the number on each old injector as it comes out. Use new seals and clean fuel, and change the fuel filters when you fit a set.

Part Numbers & Cross Reference

Alliant Power AP55017  ·  Delphi (pumping injector, 3 in the set) EX631133  ·  Delphi (non-pumping injector, 3 in the set) EX631134  ·  Volvo / Mack (pumping injector) 22378579  ·  Volvo / Mack (non-pumping injector) 22378580  ·  Volvo / Mack (injector set) 85150916

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

What comes in the AP55017 set?

Six remanufactured F2E injectors: three pumping injectors (Delphi EX631133) and three non-pumping injectors (Delphi EX631134).

What engines does the AP55017 set fit?

The Volvo D13 and Mack MP8 with the Delphi F2E fuel system, where the old injectors carry Volvo 22378579 and 22378580. Call 530-668-0818 with the engine serial number or VIN and we will confirm it.

Is the set new or remanufactured, and is there a core?

It is a remanufactured set from Alliant Power. A refundable core applies to the set, so send back your old injectors.

Can I buy just one injector?

Yes. The single injectors are Delphi EX631133 for a pumping position and Delphi EX631134 for a non-pumping position.

Related Parts

• Volvo D13 & Mack MP8 13.0L EPA10 E3.5 Unit Injector Set of 6 | Alliant Power AP55012 Remanufactured
• Volvo D13 & Mack MP8 F2E Non-Pumping Fuel Injector | Delphi EX631134 Remanufactured (Volvo 22378580)
• Volvo D13 & Mack MP8 F2E Pumping Fuel Injector | Delphi EX631133 Remanufactured (Volvo 22378579)
• Mack E7 E-Tech & ASET 12.0L Electronic Unit Pump (EUP) | Bosch 0986445011 Remanufactured (Mack 313GC5233M)

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.