The 1993 Oshkosh Mb18fd has 2 NHTSA recall campaigns affecting an estimated 179 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
A BRACKET INSTALLED TO SECURE A HIGH IDLE COMPONENT ONTO THE ENGINE THROTTLE ARM CAN HOOK THE WIRE HARNESS AND PREVENT ITS RETURN TO IDLE SPEED.
THE ENGINE THROTTLE CAN STICK PARTIALLY OPEN RESULTING IN LOSS OF THROTTLE CONTROL AND AN ACCIDENT.
DEALERS WILL RELOCATE THE HIGH IDLE BRACKET AWAY FROM THE THROTTLE LINKAGE AND SECURE THE WIRING HARNESS AWAY FROM THE THROTTLE LINKAGE.
THE AIR COMPRESSOR AIR SUPPLY LINE IS ROUTED FROM THE COMPRESSOR OVER THE TOP OF THE FRAME RAIL, UNDER THE BRAKE HYDROMAX, AND DOWN TO THE AIR SYSTEM. THIS LINE CAN CONTACT THE STEEL SECTION OF THE HYDROMAX HYDRAULIC SUPPLY LINE, CAUSING A LEAK TO OCCUR IN THE HYDRAULIC LINE, ALLOWING HYDRAULIC FLUID TO LEAK ON THE…
THE LEAK ALLOWS ENOUGH FLUID TO BE PUMPED FROM THE SYSTEM TO ELIMINATE POWER STEERING ASSIST. THE ELECTRONIC SECONDARY BRAKE PUMP WILL ENGAGE, BUT THE LEAK WILL RESULT IN INCREASED STOPPING DISTANCE.
DEALERS WILL INSTALL A CUSHION CLIP ON THE TOP LEFT FRAME RAIL SEPARATING AND ELIMINATING ANY CONTACT BETWEEN THE STEEL JACKETED AIR LINE AND THE METAL SECTION OF THE HYDRAULIC LINE.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1993 Oshkosh Mb18fd as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.