2016–2018 Newmar Mountain Aire Recall: Diesel Exhaust Fluid (DEF) tank bracket may contact the tag axle tire…
NHTSA campaign 18V307000 · Tires · filed May 11, 2018 · verified Jul 30, 2026
The defect
Newmar Corporation (Newmar) is recalling certain 2016-2018 Newmar Mountain Aire motorhomes. The Diesel Exhaust Fluid (DEF) tank bracket may contact the tag axle tire, possibly causing tire damage.
The risk
If the bracket damages the tire, it can cause tire failure, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Newmar will notify owners, and Spartan Motors dealers will move the DEF bracket away from the tire, free of charge. The recall began on June 21, 2018. Owners may contact Newmar customer service at 1-800-731-8300.
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.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Newmar | Mountain Aire | 2016, 2017, 2018 |
Related recalls
More Newmar Mountain Aire recalls
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- 2019–2022 Newmar Bay Star and 11 other models — Wiring under the seats may be incorrectly secured, which…
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Other campaigns involving Newmar vehicles
Source: NHTSA recall database, campaign 18V307000. Data last verified Jul 30, 2026.