Broken Shaft Seal May Cause Loss of Power Steering – 2020 Sutphen Fire Trucks

November 17, 2021 NHTSA CAMPAIGN NUMBER: 21V891000

Broken Shaft Seal May Cause Loss of Power Steering

A loss of power steering assist can increase the risk of a crash.


NHTSA Campaign Number: 21V891

Manufacturer Sutphen Corporation

Components STEERING

Potential Number of Units Affected 20



Sutphen Corporation (Sutphen) is recalling certain 2020 Sutphen Fire trucks. Pressure may build in the power steering pump and break the shaft seal, resulting in a loss of power steering assist.



Dealers will inspect the power steering pump serial numbers, and the affected pumps will be replaced, free of charge. Owners may contact Sutphen customer service at 1-614-889-1005.



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


Chronology :

In July 2020, Spartan Fire notified ZF about a zero mileage issue identified in Spartan Fire’s assembly plant involving power steering pumps supplied by ZF. ZF thereafter conducted an engineering analysis of affected parts, verified production parameters, performed calibrations, and verified potential corrective measures through lab measurements and testing.

In September 2020, ZF identified a potential manufacturing issue. ZF continued to monitor warranty data but did not detect an issue with other vehicle manufacturers similar to what was experienced by Spartan Fire.

In October 2020, ZF implemented a process sequence change in its manufacturing process to address the issue. In April 2021, Spartan Fire informed ZF of a warranty claim involving loss of power steering assist.

On April 10, 2021, Spartan Fire initiated a recall of 243 vehicles containing power steering pumps supplied by ZF (21V252).

In July 2021, ZF responded to an informal inquiry by NHTSA’s Recall Management Division related to the Spartan Fire recall.

On August 4, 2021, at the agency’s request, and although ZF had not made a safety defect determination with respect to the subject power steering pumps, ZF submitted a list of purchasers to NHTSA with a Part 512 request for confidential treatment.

On August 31, 2021, Autocar initiated a recall related to vehicles containing power steering pumps supplied by ZF (21V677).

On September 3, 2021, NHTSA requested that ZF file a part 573 report based on the Spartan Fire and Autocar recalls. Although ZF has not determined that a safety-related defect exists in the subject power steering pumps, ZF agreed to submit a Part 573 report as requested. On October 27,2021 Sutphen received a notice from NHTSA about the report from ZF North America and received a copy of recall notice 21E-085


21E085 – PS ED Power Steering Pumps May Fail – ZF North America


21E085 – PS ED Power Steering Pumps May Fail – ZF North America


1 Affected Product




4 Associated Documents

Recall Acknowledgement

RCAK-21V891-6242.pdf 706.002KB



Defect Notice 573 Report

RCLRPT-21V891-4271.PDF 214.554KB



Recall 573 Report – January 12, 2022

RCLRPT-21V891-5043.PDF 214.555KB



Recall Quarterly Report #1, 2022-3

RCLQRT-21V891-3290.PDF 239.327KB



Latest Recalls Documents



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Last update on 2022-11-14 / Affiliate links / Images from Amazon Product Advertising API

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