Cummins QSF2.8 DOC Rebuild
New England Supply House rebuilds the catalytic converter for the Cummins QSF2.8 — send us your existing core and we’ll rebuild it with new internals, built to meet EPA emissions standards, typically for a fraction of OEM cost.
How the rebuild works
Core exchange is required — we rebuild your catalytic converter, so we need your core to complete the job.
- Get a quote. Tell us your engine model and the machine it’s in, and we’ll reply with a price.
- Ship us your catalytic converter core (with tracking and insurance).
- We rebuild it with new internals, built to meet EPA emissions standards.
- We ship it back — usually within 3–5 business days of receiving your core.
Machines that run the Cummins QSF2.8
The Cummins QSF2.8 (2.8L) is a Tier 4 Final diesel with a diesel oxidation catalyst (DOC). It powers ASV Posi-Track skid steers and compact track loaders, compact mulchers, and a range of compact off-road equipment. If your machine runs the Cummins QSF2.8, we can rebuild its converter. The catalyst is on Tier 4 builds (roughly 2013 and newer); pre-Tier 4 (Tier 3) versions of these engines don’t have one, and sub-25 hp units often have no aftertreatment at all — so confirm your engine year, model, and serial with us before shipping. This is not a complete list — call 774-701-6374 with your engine data tag and we’ll confirm.
Pricing: Off-road converter rebuilds are quoted per engine and converter — call 774-701-6374 for your price.
Why rebuild instead of buying new
| New OEM converter | NESH rebuild | |
|---|---|---|
| Cost | Full dealer price | Save vs. OEM |
| Turnaround | Often weeks via a dealer | ~3–5 business days after we get your core |
| Emissions | OEM | Built to meet EPA emissions standards |
| Backing | Manufacturer | Warranty against manufacturing defects |
Get your quote
New England Supply House rebuilds the catalytic converter for any Tier 4 off-road engine. Tell us your engine model and the machine it’s in and we’ll reply with a price.
Get your quote → or call 774-701-6374
We rebuild catalytic converters (diesel DOC and 3-way) for wood chippers, stump cutters, mulchers and off-road equipment across all major engine brands — Caterpillar, Cummins, John Deere, Kubota, Yanmar, Doosan, Deutz, Perkins, Kohler and more. See our catalytic converter rebuild program.