Use cautionVehicle recall · NHTSA · Published April 8, 2021
Newmar 2021 New Aire Diesel Fuel Leak Recall: Fire Risk
Newmar is recalling 2021-2022 New Aire motorhomes with Cummins diesel engines due to potential fuel leaks that could cause fire if near ignition sources. Owners must contact customer service for free hose replacement.
Newmar is recalling certain 2021-2022 New Aire motorhomes with Cummins diesel engines because fuel hoses may leak, creating fire risk near ignition sources. This is a safety issue requiring immediate replacement of the hoses to prevent fire. Read more at govinfonow.com/recall/80604-newmar-2021-new-aire-diesel-fuel-leak-recall-fire-risk.
“Newmar 2021 New Aire Diesel Fuel Leak Recall: Fire Risk.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/80604-newmar-2021-new-aire-diesel-fuel-leak-recall-fire-risk. Based on NHTSA recall #21V604000 (https://www.nhtsa.gov/recalls?nhtsaId=21V604000).
The National Highway Traffic Safety Administration announced on April 8, 2021, that Newmar Corporation is recalling certain 2021-2022 Dutch Star, New Aire, and Ventana motorhomes due to a fuel leak that increases the risk of fire. Cummins will replace the fuel hoses free of charge.
How to tell if you have it
Newmar Dutch Star, 2021-2022
Newmar New Aire, 2021-2022
Newmar Ventana, 2021-2022
What to do
Cummins will replace the fuel hoses, free of charge. Owner notification letters were mailed on September 16, 2021. Owners may contact Newmar's customer service at 1-800-731-8300.
The hazard
A fuel leak in the presence of an ignition source increases the risk of a fire. The leak may occur from the fuel hose between the fuel pump and the remote fuel filter head.
Context
GovInfoNow's records show Newmar Corporation has 102 other recalls on record since May 27, 2010. Other recent recalls of similar products include Newmar Bay Star 2018-2026 Motorhomes (Feb. 24, 2026), Newmar 2023-2024 King Aire Motorhomes (June 27, 2025), and Newmar 2022 Bay Star Motorhomes (April 29, 2024). Other recent recalls of similar products include Tiffin Phaeton Recall (Oct. 8, 2026), KTM Husqvarna Svartpilen 401 (2024) Fuel Leak Recall (Oct. 30, 2025), and Freightliner FCCC XBS Recall (Oct. 7, 2026).
How to tell if you have this one
Check if your 2021-2022 New Aire motorhome has a Cummins L9 diesel engine. The recall covers vehicles with the Cummins 21E-063 part number.
Brand
Newmar
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Customer Service
Call Newmar's customer service at 1-800-731-8300 to schedule free fuel hose replacement.
Replace Fuel Hoses
Cummins will replace the fuel hoses at no cost to you once the replacement is arranged.
Official remedy
What NHTSA says to do
Cummins will replace the fuel hoses, free of charge. Owner notification letters were mailed on September 16, 2021. Owners may contact Newmar's customer service at 1-800-731-8300. Newmar's number for this recall is Cummins 21E-063.
How this recall unfolded
Recall timeline
Owners were mailed letters 5 months after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Newmar
We’ve drafted a message you can send Newmar to request your refund or repair — edit it as you like.
Subject: Recall 21V604000 — Newmar 2021 New Aire Diesel Fuel Leak Recall: Fire Risk
Hello,
I own a Newmar 2021 New Aire Diesel Fuel Leak Recall: Fire Risk that is covered by recall 21V604000 from Newmar.
The official recall notice states: Cummins will replace the fuel hoses, free of charge. Owner notification letters were mailed on September 16, 2021. Owners may contact Newmar's customer service at 1-800-731-8300. Newmar's number for this recall is Cummins 21E-063.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.