This is the Delphi EX631133, the pumping injector of the Delphi F2E fuel system used on the Volvo D13 and Mack MP8, remanufactured by Delphi. It replaces Volvo and Mack 22378579, 23771407 and 85022897, and Delphi BEBE1R18001, BEBE1R18101 and BEBE1R18201. It is sold one at a time, and a refundable core applies.

The F2E system uses two different injectors on the same engine: pumping and non-pumping. This listing is the pumping one. The non-pumping injector is Delphi EX631134 (Volvo 22378580). They are separate parts with their own numbers, so read the number on the injector you are replacing before you order.

Specifications

Fits / Applications

• Volvo D13 with the Delphi F2E fuel system
• Mack MP8 with the Delphi F2E fuel system
• Pumping injector: the old injector carries Volvo or Mack 22378579, 23771407 or 85022897
• Sold as a single injector

Keep pumping and non-pumping injectors in their own positions. 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 injectors.

Part Numbers & Cross Reference

Delphi EX631133  ·  Volvo / Mack 22378579  ·  Volvo / Mack 23771407  ·  Volvo / Mack 85022897  ·  Delphi OE BEBE1R18001  ·  Delphi OE BEBE1R18101  ·  Delphi OE BEBE1R18201

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 is the difference between EX631133 and EX631134?

EX631133 is the F2E pumping injector, Volvo 22378579. EX631134 is the F2E non-pumping injector, Volvo 22378580. An F2E engine uses both types, and each has its own number.

What engines take the Delphi EX631133?

The Volvo D13 and the Mack MP8 with the Delphi F2E fuel system. Call 530-668-0818 with the engine serial number or VIN and we will confirm it.

Which numbers does EX631133 replace?

Volvo and Mack 22378579, 23771407 and 85022897, and Delphi BEBE1R18001, BEBE1R18101 and BEBE1R18201.

Is it new or remanufactured?

It is remanufactured by Delphi, the maker of the original injector. A refundable core applies, so send back your old injector.

Related Parts

• Volvo D13 & Mack MP8 F2E Non-Pumping Fuel Injector | Delphi EX631134 Remanufactured (Volvo 22378580)
• Volvo D16 & Mack MP10 16L E3.5 Evolution Unit Injector | Delphi EX631087 Remanufactured (21457953)
• Volvo D13 & Mack MP8 F2E Injector Set of 6, Pumping & Non-Pumping | Alliant Power AP55017 Remanufactured
• Volvo FH, FH16 & FM 24V DEF (Urea) Supply Module, Volvo 21576178 & 23753841 | Bosch 044404227G New

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.