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Campaign 12V074 Posted February 28, 2012 103,437 units

2006-2013 Western Star Trucks Recall 12V074: Fuel Line

RN
Reviewed by the RecallNotify editorial team
Published June 2, 2026

Recall 12V074 covers 103,437 2006-2013 Western Star trucks with diesel fuel-line supports that loosen after service. Repair is free at Western Star service facilities.

Western Star is recalling 103,437 2006-2013 vehicles, including 6900 trucks, because high-pressure fuel line supports on certain Detroit Diesel engines can loosen after service work. A fuel leak can create a road hazard, raise crash risk, or result in a fire near an ignition source; the Western Star dealer repair will be free once available.

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What's wrong?

The high-pressure fuel line on affected 2006-2013 Western Star trucks carries diesel fuel from the engine's pump to the fuel rail. That rail feeds the engine injectors, so the line has to stay tight, aligned, and supported while the diesel engine runs under pressure.

The problem is in the pump-to-rail fuel line support system used with Detroit Diesel EPA07 and EPA10, DD13, and DD15/16 engines. The supports are sensitive to assembly torque, which means too much or too little tightening during service work damages the support setup. After other repairs, the supports can loosen and let the fuel line move instead of staying fixed. That movement can crack the line and create a diesel fuel leak.

There is no warning sign before failure. If the line has already cracked, the first thing an owner or driver notices can be fuel odor, visible wet fuel near the engine, or fuel leaking from the truck.

Who's affected?

Spans 10 truck lines across the 2006-2013 model years, all tied to the diesel-engine component.

2008 Western Star 6900 Diesel
2008 Freightliner Century Diesel
2007 Freightliner Century Diesel
2012 Freightliner Columbia Diesel
2010 Freightliner Columbia Diesel
Units affected103,437

The year, make, and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific truck is included.

What's the safety risk?

A fuel leak creates a road hazard, increasing crash risk. Fuel that reaches an ignition source can also start a fire. Schedule the recall repair soon, and ask the dealer what to do if fuel is leaking now. Repair will be free at any franchised Western Star dealer once available.

What should I do?

  1. Check your VIN to confirm your 2006-2013 Western Star vehicle is included in this recall.
  2. Watch for the owner notice DTNA mailed on April 27, 2012, or ask Western Star customer service for a copy if you bought the vehicle used.
  3. Contact a franchised Western Star service facility and reference recall number 12V074 when you call.
  4. Ask whether the high pressure fuel line support replacement applies to your engine, since loose supports can lead to fuel line cracking and a fuel leak.
  5. Bring the recall notice to the service facility if you have it. The recall repair is free.

What happens at the repair

At an authorized Western Star service facility, a Western Star technician checks the pump to rail high pressure fuel line support system and replaces the support system when required. The source record says the safety recall began on April 27, 2012, and the repair is performed free of charge. Because this record does not list a current remedy status, confirm parts and scheduling with the service facility before you bring the truck in.

Timeline

February 28, 2012 NHTSA published the recall
April 27, 2012 Owner notification mailed

Frequently asked questions

What is recall 12V074?

Recall 12V074 covers 103,437 2006-2013 Western Star vehicles with Detroit Diesel EPA07 or EPA10 DD13 and DD15/16 engines. The high-pressure fuel line support system can loosen after service work, leading to fuel line cracking, a fuel leak, a road hazard, crash risk, or fire risk.

What should I do if my 2006-2013 Western Star 6900, 4700, or 4900 is on this recall?

Check your VIN to confirm your specific vehicle is included in recall 12V074. If it is, contact a franchised Western Star dealer or DTNA authorized service facility and reference recall number 12V074. The high-pressure fuel line support system repair is free.

Is the recall repair free?

Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and DTNA says the high-pressure fuel line support system will be replaced free of charge where needed at an authorized service facility.

What is the safety risk?

The safety risk is a fuel leak from a cracked high-pressure fuel line. A leak can create a road hazard that increases crash risk. Fuel near an ignition source can also result in a fire. The repair path is the free fuel line support system replacement where needed.

What if I bought this Western Star used?

The free recall repair still applies. Recall coverage follows the VIN, not the first owner. Check your VIN to confirm whether your specific vehicle is included, then call a franchised Western Star dealer or DTNA at 1-800-547-0712 with recall number 12V074.

More information

NHTSA campaign pagenhtsa.gov/vehicle-recalls/12V074000
Western Star customer service1-800-547-0712
NHTSA recall #12V074
NHTSA recall # (full)12V074000

Source documents

This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →