2004 Diamond Coach C3500 Recall: ON CERTAIN DIESEL BUSES BUILT ON FORD E-350 AND E-450 CHASSIS AND EQUIPPED…
NHTSA campaign 04V611000 · Equipment · filed Dec 29, 2004 · verified Jul 30, 2026
The defect
ON CERTAIN DIESEL BUSES BUILT ON FORD E-350 AND E-450 CHASSIS AND EQUIPPED WITH CARRIER VACUUM PUMP BRACKETS, THE BRACKETS COULD BREAK.
The risk
WHEN THE BRACKET BREAKS, THE VACUUM PUMP THAT PROVIDES THE POWER TO THE POWER BRAKES BECOMES INOPERATIVE, INCREASING THE RISK OF A CRASH. ALSO, THE POWER STEERING COULD BE AFFECTED IF THE BELT GETS INTO THE OTHER BELTS.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DEALERS WILL REPLACE THE BRACKETS. THE RECALL BEGAN ON JANUARY 21, 2005. OWNERS SHOULD CONTACT DIAMOND COACH AT 1-620-795-2191.
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-327-4236.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Diamond Coach | C3500 | 2004 |
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Source: NHTSA recall database, campaign 04V611000. Data last verified Jul 30, 2026.