NHTSA service bulletin

NHTSA Service Bulletin 10025863: 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Cummins 3.2 Kw Qd

Official manufacturer communication context for 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Cummins 3.2 Kw Qd, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10025863 summary graphic for 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Cummins 3.2 Kw Qd
10025863NHTSA document ID
Service campaigncommunication type
40affected product rows
80/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

CUMMINS: ORION VOLTAGE REGULATOR CAMPAIGN. ADDRESSING A FUEL LIFT PUMP VOLTAGE REGULATOR ISSUE. AUTHORIZES REPAIR SHOP TO REMOVE CUMMINS VOLTAGE REGULATOR FROM WIRING HARNESS AND INSTALL SEPARATE 12-VDC POWER SOURCE FOR ORION BUS APPLICATIONS WITH ISB CM850 ENGINES AND 24-VDC ELELCTRICAL SYSTEMS. *PE

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
Cummins6 Cta Engine1988-1991Ask for service records and run the exact VIN before purchase.
Cummins6ctab83model years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsAir Compressormodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsB Gas Plus Engine2001-2003Ask for service records and run the exact VIN before purchase.
CumminsBmodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsBg6model years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsC Gas Plus Engine2001-2003Ask for service records and run the exact VIN before purchase.
CumminsCmodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsC Series1988Ask for service records and run the exact VIN before purchase.
CumminsC8.3model years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsC8.3gmodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsCpl0893model years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsCummins1988, 1989, 1991, 1994, 1995, 1996, 1997, 1998Ask for service records and run the exact VIN before purchase.
CumminsDiesel Engine1991Ask for service records and run the exact VIN before purchase.
CumminsElectronic Control Modulemodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsEnginemodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsIconmodel years not specifiedAsk for service records and run the exact VIN before purchase.
CumminsInsite 6model years not specifiedAsk for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10025863?

CUMMINS: ORION VOLTAGE REGULATOR CAMPAIGN. ADDRESSING A FUEL LIFT PUMP VOLTAGE REGULATOR ISSUE. AUTHORIZES REPAIR SHOP TO REMOVE CUMMINS VOLTAGE REGULATOR FROM WIRING HARNESS AND INSTALL SEPARATE 12-VDC POWER SOURCE FOR ORION BUS APPLICATIONS WITH ISB CM850 ENGINES AND 24-VDC ELELCTRICAL SYSTEMS. *PE

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

Get Full Report