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Campaign 14V452 Posted July 23, 2014 374 units

2012-2014 Collins DH/DE Recall 14V452: Propane Line

RN
Reviewed by the RecallNotify editorial team
Published June 2, 2026

Recall 14V452 covers 374 2012-2014 Collins DH500, DH516, DH516WR, DE500, and DE516WR buses for propane-line damage. Free repair at Collins dealers.

Collins is recalling 374 2012-2014 DH516, DH516WR, DH500, DE516WR, and DE500 school buses because the propane fuel line can rub against a body mount bolt and become damaged. A damaged line can leak propane, stall the bus, or start a fire near an ignition source; Collins dealers will inspect and repair the fuel line free of charge.

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What's wrong?

The propane fuel line on 2012-2014 Collins DH516, DH516WR, DH500, DE516WR, and DE500 school buses carries propane from the fuel system along the frame. It needs clear space around it so the line can stay protected while the bus moves, vibrates, and flexes over the road.

On these buses, the propane fuel line is routed close enough to the third body mount bolt at the left rear of the frame rail that the two parts can rub. That contact wears against the fuel line instead of leaving it isolated from the frame hardware. Over time, the rubbing can damage the propane line.

There is no warning sign before failure. The source does not identify a smell, light, noise, or driver complaint that reliably appears before the line is damaged.

Who's affected?

Spans the DH and DE bus lines across the 2012-2014 model years, all tied to the fuel system component.

2013 Collins DH516 fuel system
2013 Collins DH516WR fuel system
2014 Collins DH516WR fuel system
2012 Collins DH516 fuel system
2012 Collins DH500 fuel system
Units affected374

A matching year and model does not confirm inclusion. Check your VIN to confirm whether your specific bus is included.

What's the safety risk?

Fuel-line damage can let propane leak. That leak can stall the vehicle and increase crash risk. Propane near an ignition source can lead to a fire. Schedule the recall repair soon. If you suspect a propane leak, shut the vehicle off in a safe place and call the dealer. Repair is free at any franchised Collins dealer.

What should I do?

  1. Check your VIN to confirm your 2012-2014 Collins DH516, DH516WR, DH500, DE516WR, or DE500 school bus is included in this recall.
  2. Contact a franchised Collins dealer to schedule the free propane fuel-line inspection and relocation that keeps the line from rubbing against the frame mount bolt.
  3. Bring the Collins owner notice when available, and reference recall number 14V452 when you call.
  4. Drive cautiously until the repair is complete, and stop using the bus if you smell propane or notice fuel-line damage.
  5. Call Collins customer service at 1-800-533-1850 with questions about scheduling or the free repair.

What happens at the repair

At the dealer, a Collins technician inspects the propane fuel line where it passes near the third body mount bolt on the left rear frame rail. If the line is routed too close to the bolt, the technician relocates the line so it no longer rubs against that mounting point. The recall repair is free at the dealer now. Parts and labor are covered under campaign 14V452.

Timeline

July 23, 2014 NHTSA published the recall
July 31, 2014 Interim owner notification (was planned for this date)
September 23, 2014 Owner notification mailed

Frequently asked questions

What is recall 14V452?

Recall 14V452 covers 374 2012-2014 Collins DH516, DH516WR, DH500, DE516WR, and DE500 school buses with a propane fuel line that can rub against a body mount bolt. Collins dealers will inspect and relocate the fuel line for free.

What should I do if my 2012-2014 Collins DH516, DH516WR, DH500, DE516WR, or DE500 is on this recall?

Check your VIN to confirm your specific bus is included in recall 14V452. If it is, contact a Collins dealer or Collins customer service at 1-800-533-1850 to schedule the fuel-line inspection and relocation. The repair is free.

Does the recall repair cost anything?

No. Federal recall law requires the manufacturer to repair the defect at no cost. Collins dealers will inspect the propane fuel line and relocate it free of charge for buses included in recall 14V452.

What is the safety risk in recall 14V452?

The safety risk is a propane leak from fuel-line damage. A leaking propane line can cause the bus to stall, increasing crash risk. If propane leaks near an ignition source, fire risk increases. The dealer repair fixes the line routing for free.

What if I bought this Collins school bus used?

The free recall repair still applies. Federal recall law follows the vehicle, not the first owner. Check your VIN to confirm whether your specific Collins bus is included, then reference recall 14V452 when you call a Collins dealer or Collins customer service.

More information

NHTSA campaign pagenhtsa.gov/vehicle-recalls/14V452000
Collins customer service1-800-533-1850
NHTSA recall #14V452
NHTSA recall # (full)14V452000

Source documents

This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →