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Let's Fix Your Diesel Today!

Call Now  715-254-2307

Owner, Gary Nilsen, will answer your diesel parts question when you call.

Reducers/Couplers

Grand Rock Manufacturing 

Heavy Duty Commercial Grade Stack Exhaust Reducers and Couplers, Clamps

Aluminized Steel Reducers and Couplers

Chrome Plated Reducers and Couplers also available; some are Custom/Made to Order parts