1991 Oshkosh S Series problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 0 complaints on file for the 1991 Oshkosh S Series — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

NHTSA complaints

Recalls

Investigations

Crash-involved

Fires reported

Injuries

Deaths

—

NCAP overall

How does 1991 compare to other S Series years?

S Series NHTSA complaints by model year, 1991 highlighted. Red bars are years to avoid.

See all S Series years to avoid →

Does the 1991 Oshkosh S Series have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

92V171000Body & StructureNovember 24, 1992 · 216 units

Defect

THE STAINLESS STEEL FASTENERS FOR THE CAB ENTRY STEPS AND GRAB HANDLES CAN CRACK AND BREAK.

Consequence

THE STEPS AND GRAB HANDLES CAN SEPARATE FROM THE TRUCKBODY UNDER LOAD FROM CAB OCCUPANTS ENTERING OR EXITING THE CAB, WHICH COULDRESULT IN AN INJURY TO USERS.

Remedy

REPLACE THE STEP AND GRAB HANDLE STAINLESS STEEL FASTENERS WITH GRADE 5 ZINC AND YELLOW COATED FASTENERS. OSHKOSH WILL SEND THE REPLACEMENT FASTENERS TO OWNERS WITH THE NOTIFICATION LETTERS. OWNERS WILL BE REQUESTED TO REPLACE THE FASTENERS ON THEIR VEHICLES, AND WILL BE REIMBURSED FOR THE LABOR TO PERFORM THE REPAIR.

91V194000BrakesNovember 4, 1991 · 104 units

Defect

THE REAR TANDEM AXLE BRAKES DO NOT MEET THE SERVICE BRAKE APPLICATION TIME REQUIREMENTS OF FMVSS 121.

Consequence

FAILURE TO MEET STANDARDS OF FMVSS 121 INCREASES BRAKINGDISTANCE AND INCREASES THE POSSIBILITY OF AN ACCIDENT.

Remedy

THE O.625 INCH NYLON AIR TUBING BETWEEN THE CHASSIS AIR MANIFOLD AND THE TANDEM SERVICE RELAY WILL BE REPLACED WITH .75 INCH NYLON TUBING, WHICH WILL ALLOW BRAKE SYSTEM TO MEET THE SERVICE BRAKE APPLICATION TIME REQUIREMENTS OF FMVSS 121.

1991 Oshkosh S Series — common questions

Is the 1991 Oshkosh S Series reliable?

The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

Does the 1991 Oshkosh S Series have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 1991 Oshkosh S Series. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.

How does 1991 compare to other S Series years?

Does the 1991 Oshkosh S Series have recalls?

1991 Oshkosh S Series — common questions

Is the 1991 Oshkosh S Series reliable?

Does the 1991 Oshkosh S Series have recalls?

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