Custom Fire Spartan Gladiator, Custom Fire Spartan Metrostar, model years 2017 to 2021. Filed by Custom Fire Apparatus, Inc. and reported to NHTSA on 9 August 2021. 48 vehicles potentially affected.
What the notice says Custom Fire Apparatus, Inc. (Custom Fire) is recalling certain 2017-2021 Spartan Gladiator, MetroStar, and MetroStarX emergency vehicles equipped with Cummins L9 diesel engines. The sealing washer may not seat correctly in the pilot boreholes, allowing the high pressure fuel rail assembly to leak.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 21V630 cover?
- Custom Fire Spartan Gladiator, Custom Fire Spartan Metrostar, model years 2017-2021.
- What is wrong with them?
- Custom Fire Apparatus, Inc. (Custom Fire) is recalling certain 2017-2021 Spartan Gladiator, MetroStar, and MetroStarX emergency vehicles equipped with Cummins L9 diesel engines. The sealing washer may not seat correctly in the pilot boreholes, allowing the high pressure fuel rail assembly to leak.
- What can happen if it is not put right?
- A fuel leak in the presence of an ignition source increases the risk of a fire.
- Is there a fix yet?
- Yes, and it is free. Cummins will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on August 8, 2021. Owners may contact Custom Fire's customer service at 1-715-294-2555.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A fuel leak in the presence of an ignition source increases the risk of a fire.”
affected
in the notice
caught
| Campaign | 21V630 |
|---|---|
| Filed by | Custom Fire Apparatus, Inc. |
| System at fault | Fuel System, Diesel:Fuel Injection System:Fuel Rail |
| Reported to NHTSA | 9 August 2021 |
| Model years | 2017-2021 |
| Vehicles named | CUSTOM FIRE SPARTAN GLADIATOR, CUSTOM FIRE SPARTAN METROSTAR |
What the notice says today
The consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
The remedy
Cummins will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on August 8, 2021. Owners may contact Custom Fire's customer service at 1-715-294-2555.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 197 notices in the record whose component field names fuel system, diesel. Across that group the median wait before owners were written to was 43 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
- Custom Fire Spartan Gladiator recalls: 4 US campaigns
- Custom Fire Spartan Metrostar recalls: 4 US campaigns
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 21V630, wording as read on 16 September 2026. https://carsmultiverse.com/recall/21v630/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Custom Fire notices we hold
- 23V747: 2021-2024 Spartan Gladiator, MetroStar, and FC-94 emergency
- 23V316: 2022-2024 Gladiator, Metro Star, FC-94
- 22V461: one 2018 Peterbilt 348 fire truck
- 22V316: 2021-2022 Spartan Gladiator, MetroStar, and MetroStar-RT emergency
- 21V620: 2017-2021 Peterbilt 348, Freightliner M2, Kenworth T370, and T880 emergency
- 21V618: 2019-2021 Spartan Gladiator and Metrostar emergency
- 20V111: one2017 In Side Mount Pumper vehicle equipped with a Smart Foam 6
All 8 Custom Fire campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V630 on 23 August 2026, they were:
- Defect summary
721e462b - Consequence
2c1e78b5 - Remedy
34820c77
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V630 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Custom Fire Spartan Gladiator, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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