This is the Delphi EX631085, an E3.5 electronic unit injector remanufactured by Delphi for the 12.8L Volvo D13 and Mack MP8 at the EPA14 emissions level (the GHG engines). Catalogs list it for 2015 to 2018 model year Volvo and Mack trucks. The Delphi number for it is BEBE4L16001. It replaces Volvo and Mack numbers 22012829, 22479124, 85020032, 85020033, 85020428, 85020429, 85144517 and 85144518. It is sold one at a time, and a refundable core applies.

A miss or rough idle that follows one cylinder, hard starting, fuel in the oil, white or black smoke and an injector fault code for one cylinder are the usual reasons these get replaced. The D13 and MP8 were built with more than one injector. Earlier engines take the E3.5 injector listed as Delphi EX631079, and engines with the F2E fuel system take EX631133 (pumping) and EX631134 (non-pumping). Each has its own list of Volvo numbers, so match the number on your old injector before you order.

Specifications

Fits / Applications

• 12.8L Volvo D13 and Mack MP8, EPA14 emissions level (GHG engines)
• Cataloged for 2015 to 2018 model year Volvo and Mack trucks
• Engines whose injector carries one of the Volvo or Mack numbers in the cross reference list
• D13 and MP8 engines with the F2E fuel system take different injectors (EX631133 pumping, EX631134 non-pumping)
• Six injectors per engine, sold one at a time

Part Numbers & Cross Reference

Delphi EX631085  ·  Delphi BEBE4L16001  ·  Delphi HRE376  ·  Volvo / Mack 22012829  ·  Volvo / Mack 22479124  ·  Volvo / Mack 85020032  ·  Volvo / Mack 85020033  ·  Volvo / Mack 85020428  ·  Volvo / Mack 85020429  ·  Volvo / Mack 85144517  ·  Volvo / Mack 85144518

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 engine does the EX631085 fit?

The 12.8L Volvo D13 and Mack MP8 at the EPA14 emissions level. Catalogs list it for 2015 to 2018 model year trucks. Engines with the F2E pumping and non-pumping injectors take a different part, so check the number on your old injector.

What numbers does the EX631085 replace?

Volvo and Mack 22012829, 22479124, 85020032, 85020033, 85020428, 85020429, 85144517 and 85144518. The Delphi number is BEBE4L16001.

Is it new or remanufactured, and is there a core?

It is remanufactured by Delphi, the company that made the original injector. A refundable core applies, and it comes back when we receive your old injector.

How is it different from the other Volvo and Mack E3.5 injectors?

Each engine size has its own injector at this emissions level: EX631084 for the 11L D11 and MP7, EX631085 for the 12.8L D13 and MP8, and EX631086 for the 16L D16 and MP10. Call 530-668-0818 with the number off your old injector and your engine serial number if you are not sure.

Related Parts

• Volvo D11 & Mack MP7 11L EPA14 E3.5 Unit Injector (Volvo 85020426) | Delphi EX631084 Remanufactured
• Volvo D13 & Mack MP8 13.0L EPA10 E3.5 Unit Injector (Volvo 22027808) | Delphi EX631079 Remanufactured
• Volvo D11 & Mack MP7 11.0L EPA10 E3.5 Unit Injector (Volvo 22027807) | Delphi EX631078 Remanufactured
• 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.