Fuel system, diesel: fuel injection system: fuel rail (Watson Hopper)
Vehicle equipment recall 22E-026. NHTSA received Watson Hopper’s report on Mar 25, 2022.
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The short answer
NHTSA received Watson Hopper’s report on Mar 25, 2022. Copied from NHTSA on Oct 22, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Watson Hopper (Watson Hopper) is recalling certain X12 Power Modules.
The fuel tubes between the fuel rail and the injector for cylinders 4, 5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak.
NHTSA, Recalls flat file. Released Oct 22, 2026. Updated daily.
- NHTSA’s part: Fuel system, diesel: fuel injection system: fuel rail.
What should you do?
On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators, free of charge. Owner notification letters were mailed July 21, 2022. Owners may contact Watson Hopper customer service at 1-970-874-7410.
NHTSA, Recalls flat file. Released Oct 22, 2026. Updated daily.
- How to reach the firm: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Which ones are recalled?
NHTSA counts 11 items potentially involved, across everything this recall names.
-
Part no.
5536516 -
Part no.
5486389 -
Part no.
3695190
NHTSA, Recalls flat file. Released Oct 22, 2026. Updated daily.
- Watson Hopper X12 Power ModuleNHTSA gives no dates made
Who is recalling it?
- Made by Watson Hopper.
NHTSA, Recalls flat file. Released Oct 22, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Which ones, by part or lot: the recall’s report on NHTSA’s site gives them where the maker did; this file gives part numbers only where its maker listed them.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
-
National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 22, 2026 and checked Oct 22, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 22, 2026.