Top 5 Aftermarket Parts Manufacturers in Idaho 2026
Last updated
FirmsLedger lists 5 aftermarket parts manufacturers headquartered in Idaho. That ranks 5th among the 44 states with listings, behind Pennsylvania (6), Florida (6) and 2 other states. The largest cluster is in Boise (2), and the other 3 are in 3 more cities. Boise listings include Factor 55 and Transtar Aftermarket Solutions.
By specialty, Idaho has transmission (2) listings.
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| NPW | Idaho Falls | Real-time inventory synchronization | (208) 523-5892 | npwcompanies.com |
| All Parts Brokers | Caldwell | Auto parts salvage | (208) 454-0713 | allpartsbroker.net |
| Factor 55 | Boise | Mechanical design and analysis | (208) 639-1674 | factor55.com |
| Idaho Precision Machines | Eagle | Custom machining | (208) 939-2735 | cecomponents.com |
| Transtar Aftermarket Solutions | Boise | Automotive aftermarket parts distribution | (208) 424-7780 | transtaraftermarket.com |
All Parts Brokers
Caldwell, Idaho
All Parts Brokers has operated as a full-service auto parts salvage company from its location on Cleveland Boulevard in Caldwell, Idaho, since 1977. The company maintains an inventory covering complete drive-train assemblies, body panels, engines, transmissions, starters, alternators, tires, and wheels.


