2012 Oshkosh S-Series Problems: 0 Complaints, 2 Recalls

The worst 2012 Oshkosh S-Series problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Tap a problem to see which part fails, at what mileage and in which other years.

Engine and engine cooling: engineReported June 1, 2015 · 44 vehicles affected

What is wrong: Oshkosh Corporation (Oshkosh) is recalling certain model year 2012-2014 S-Series Front Discharge Concrete Mixer vehicles manufactured February 29, 2012, to November 13, 2013, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
Risk: If engine oil comes into contact with a hot surface, there is an increased risk of a fire.
Remedy: Cummins will notify owners on behalf of Oshkosh, and dealers will secure the ends of the 90-degree elbow. In addition, the electronic control module (ECM) will be reprogrammed with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact Oshkosh customer service at 1‑888‑686‑7278 or Cummins customer service at 1‑800‑343‑7357.

Recall number 15V330000 · Recall details

Engine and engine cooling: engineReported April 7, 2014 · 46 vehicles affected

What is wrong: Oshkosh Corporation (Oshkosh) is recalling certain model year 2012-2014 S-Series Ready Mixed Concrete trucks manufactured February 29, 2012, through January 27, 2014, and equipped with certain Cummins Westport Model ISL G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.
Risk: The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.
Remedy: Cummins Inc. and Cummins Wesport Inc. will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. Cummins Inc. and Cummins Westport Inc. began notifying the affected vehicle owners in April 2014. Owners may contact Oshkosh at 1‑920‑235‑9150 or contact Cummins Inc. at 1‑800‑343‑7357.

Recall number 14V183000 · Recall details

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

Is the 2012 Oshkosh S-Series reliable?

Owners have filed 0 complaints about the 2012 Oshkosh S-Series.

What is the most common problem with the 2012 Oshkosh S-Series?

There are not enough complaints to tell.

How many recalls does the 2012 Oshkosh S-Series have?

2 recalls, covering engine and engine cooling.

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