2014 Oshkosh S-series Recalls

---

NHTSA Campaign Number: 15V532000
Manufacturer: OSHKOSH CORPORATION
Manufacturer Campaign Number: Emcara: 15E-059
Manufactured Begin Date: July 16th, 2014
Manufactured End Date: June 30th, 2015
Date of Owner Notification: September 25th, 2015

Defect Summary:
Oshkosh Corporation (Oshkosh) is recalling certain model year 2014-2015 S-Series concrete mixers manufactured July 16, 2014, to June 30, 2015. The affected concrete mixers are powered with compressed natural gas (CNG) and are equipped with pressure relief devices (PRD) that may not function as designed, failing to vent a buildup of pressure, such as could occur if the CNG tank was exposed to fire.

Consequence Summary:
If the PRD does not activate in the event of a buildup of pressure, the CNG tank may explode, increasing the risk of fire and injury.

Corrective Summary:
Oshkosh will notify owners, and dealers will inspect and replace the PRD's, as necessary, free of charge. The recall began on September 25, 2015. Owners may contact Oshkosh customer service at 1-888-686-7278. Oshkosh's number for this recall is Emcara 15E-059.

Recall Notes:
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.safercar.gov.

---

NHTSA Campaign Number: 15V330000
Manufacturer: OSHKOSH CORPORATION
Manufactured Begin Date: February 29th, 2012
Manufactured End Date: November 13th, 2013
Date of Owner Notification: June 12th, 2015

Defect Summary:
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.

Consequence Summary:
If engine oil comes into contact with a hot surface, there is an increased risk of a fire.

Corrective Summary:
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 Notes:
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.safercar.gov.

---

NHTSA Campaign Number: 15V193000
Manufacturer: OSHKOSH CORPORATION
Manufacturer Campaign Number: VSR-TSB-010
Manufactured Begin Date: September 24th, 2013
Manufactured End Date: November 12th, 2014
Date of Owner Notification: April 15th, 2015

Defect Summary:
Oshkosh Corporation (Oshkosh) is recalling certain model year 2014-2015 S-Series Front Discharge Concrete Mixer vehicles manufactured September 24, 2013, to November 12, 2014. The affected vehicles have air tanks that hold less than the required 12 times the combined volume of the service brake chambers. As a result, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."

Consequence Summary:
With the air tank volume being less than required, in certain situations the vehicle may have an insufficient quantity of air to operate the brakes, increasing the risk of a crash.

Corrective Summary:
Oshkosh will notify owners and dealers will install a larger capacity air tank, free of charge. The recall began April 15, 2015. Owners may contact Oshkosh customer service at 1-888-686-7278. Oshkosh's number for this recall is VSR-TSB-010.

Recall Notes:
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.safercar.gov.

---

NHTSA Campaign Number: 14V183000
Manufacturer: OSHKOSH CORPORATION
Manufactured Begin Date: February 29th, 2012
Manufactured End Date: January 27th, 2014
Date of Owner Notification: April 12th, 2014

Defect Summary:
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.

Consequence Summary:
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.

Corrective Summary:
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 Notes:
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.safercar.gov.