Heavy Duty Done Right

A family owned-and-operated company located in Mid-Michigan, your #1 trusted source for diesel engine manufacturing, machining and parts. Serving Hundreds of customers nationwide.

Call Now: (810) 221-7181

Remanufacturing Diesel Engines

Contact us today to have your engine remanufactured, or for more information about our remanufacturing process.


Shop our current inventory of remanufactured engines, engine kits, and parts.

We are here to help, 24/7 troubleshooting available! Engine questions? We have solutions!

Need diesel engine replacement parts? Contact us today for a quote!

We Supply All Your Heavy Duty Engine Needs

We supply HD Diesel engine parts. New, used and remanufactured parts. O.E. and O.E.M quality parts.

New Replacement Cylinder Heads

New and Reman Crankshafts

New and Reman Camshafts

Engine Rebuild Kits

Oil Coolers


New and Reman Fuel Injectors

Oil Pumps

Water Pumps

And much more!

Fisher Power Supply LLC

Leaders in the Heavy-Duty Diesel industry, Fisher Power Supply is your one stop shop for everything diesel. From engine rebuilding to providing parts we can do it all. We offer a full list of machinging services. Everything is done under one roof! Our diesel technicians assemble every engine with extreme precision to OE specifications. Providing quality products and service to each and every customer!

With years of experience in this industry, you will not find a better service or quality in standards elsewhere. We are one of the few companies that deliver exactly what we promise. We can assure you that your engine will be in the best of hands. Our business was built on honesty and integrity. We believe in doing things right the first time.

Our mission is “Heavy Duty, Done Right!”

Why Choose Us

Rapid Turn-Around Time

Knowledgeable Technicians 

Precison Work

Competitive Pricing

Excellent Customer Service

Remanufacturing Services

Rebuild Cylinder Head(s)

Polish Crankshafts & Camshafts

Replace All Wearable Parts

Machine Connecting Rods

Machine Blocks

Boring, Honing, and Resurfacing

Test and/or Replace Injectors

Magnafluxing and Pressure Checking 


Tom went above and beyond to help me. He is an outstanding individual and really cares about his customers. He really does a great job. Highly recommend.  



It’s where I have all my engines built.

Raymond Caldwell


Upstanding young man! Takes pride in his craftsmanship, and delivers a quality product! Don’t overlook this company!

Ken E.


Call or Email Us Today

(810) 221-7181


Fisher Power Supply, LLC: Your Diesel Engine Specialists

Engine Builders Association

Offering diagnostic solutions and troubleshooting 24-7. Call us today. We would love to help with all your heavy-duty engine needs!

Our Warranty Program

At Fisher Power Supply we work hard to ensure the quality of our workmanship and the products we use. We offer a 1-year unlimited miles/hour parts warranty on our all our remanufactured diesel engines. For more information on our warranty program click here.