//Wholesale Distribution & Heavy-Duty Repair
Cooling built to take the heat.
Wholesale radiators, charge air coolers, DPF filters and heat exchangers — plus a full heavy-duty repair shop. Serving the Intermountain West since 1972.
- Est. 1972
- Free Pickup & Delivery
- All Makes & Models
- West-to-East Inventory
// Who we serve
One shop. Three ways we keep you running.
Wholesale buyers, fleets, and industrial operators all pull up to the same State Street shop.
Wholesale & Resellers
Real-time pricing, West-to-East inventory, and loyalty pricing for parts pros. Order online, on Nexpart, or by phone.
Become a customer
Fleet & Heavy-Duty Repair
Re-core, DPF cleaning, charge air coolers, welding and fabrication that get your equipment back to work fast.
Explore services
Industrial & Heat Exchangers
Tube & shell, gensets and large-scale industrial heat transfer — built, repaired and tested in-house.
See capabilities// Products
Shop by application
Radiators, charge air coolers, A/C parts and DPF/DOC filters — for all makes and models, heavy-duty and automotive.
// Repair & Service
A full heavy-duty cooling shop
Re-core, DPF cleaning, charge air coolers, fuel tanks, welding and fabrication — with free pickup and delivery.
Radiator Repair & Re-Core
Rod-out, re-core, and rebuilds in copper/brass, plastic/aluminum.
DPF / DOC / SCR Cleaning
Thermal + aqueous cleaning with before & after flow readings.
Charge Air Cooler Repair
Intercooler testing, repair, and pressure verification.
Heat Exchangers
Tube & shell, testing and evaluation, fabrication.
Fuel Tank Repair & Coating
Cleaning, testing, interior coating — steel & aluminum.
A/C Hose & Cooling Systems
Same-day custom A/C lines — steel or aluminum.
Aluminum & Steel Welding
In-house welding and custom cooling fabrication.
// Why J-Mac
52+ years of getting it right.
Since 1972, shops, fleets, and operators across the Intermountain West have trusted J-Mac to keep their cooling systems running.
- Real-time wholesale pricing and West-to-East inventory reach
- In-house re-core, aluminum & steel welding, and fabrication
- DPF / DOC / SCR cleaning with before-and-after flow verification
- Free pickup and delivery along the Wasatch Front
- Order your way — wholesale portal, Nexpart, or a phone call
Averaged across 335 verified customer reviews.
Ready to order or get a quote?
Apply for a wholesale account, order on the portal, or just call the shop — we'll get you moving fast.