A full-service diesel performance and machine shop specializing in Cummins diesels. Custom competition engines, in-house CNC machine work, and parts that are priced right on the page — no surprises at checkout.
Pick your generation and the catalog below filters to parts that fit it — with the count shown right here, so you always know what you're looking at.
12-Valve · 24-Valve · Common Rail 5.9 · 6.7L — the way the catalog is organized.
Organized the same way as our parts counter — engine parts, fuel system, drivetrain, and competition gear.
Engines built to win championships deserve a store built the same way.
Every product shows its real price on the page. Variable items show the full range before you ever add one to the cart.
Subtotal, shipping, and tax are spelled out in the cart before checkout — the number you see is the number you pay.
Questions on fitment or a build? Call the office at (765) 948-3164, Mon–Fri 9–6, and talk to the crew that builds the engines.
Automotive machine shop and CNC services for Cummins B & C Series, some Case IH, some John Deere, and Honda Midget engine needs — plus B Series Cummins parts sales and dyno services, all in house.
Tell us what you're building — class, truck, and goals — and the shop will follow up with next steps. No payment here; builds are quoted and confirmed by the shop first.
Haisley Machine is a small family owned and operated company located in the middle of the cornfields near Fairmount, Indiana. Van & Patty Haisley started Haisley Machine & Repair in 1985 after moving back to Indiana from stays in Texas and Germany while Van served 7 years in the military.
The shop started with machine shop services and general diesel repair — then the search for more horsepower took over. In 1994 the Haisleys decided to specialize in Cummins engine repair and performance, and have done so ever since. Their son Curt joined full time in 2004 after graduating from Purdue University.
In 2012 the shop added a Land & Sea dual-brake engine dyno, and the winter of 2017 brought the machine shop into full operation with CNC head porting and full automotive machine services in house. Van pulls the “Rock Hard Ram” Super Stock truck; the whole crew is heavily involved in diesel motorsports, traveling to events from May to November.
Our mission: provide customers with the best quality products and service available — you work hard for your money, and we want you to get the most for it.
Van Haisley — Owner. Engine building to tear down, technical expertise for the whole operation, and an excellent fabricator. Pulls “Rock Hard Ram.”
Patty Haisley — Owner. Phone support, estimates, invoices — and “team mom” to the pullers.
Curt Haisley — Clutch builder, engine builder, R&D, welder, design engineer & turbo specialist. Purdue, Mechanical Engineering Technology, 2004.
Haisley Machine
8231 S 200 W
Fairmount, IN 46928
Phone: (765) 948-3164
Toll-free: 1-877-948-3164
Email: info@haisleymachine.com
Dyno scheduling: curt@haisleymachine.com
Hours
Monday: 9:00 AM – 6:00 PM
Tuesday: 9:00 AM – 6:00 PM
Wednesday: 9:00 AM – 6:00 PM
Thursday: 9:00 AM – 6:00 PM
Friday: 9:00 AM – 6:00 PM
Saturday: Closed
Sunday: Closed
Weekends from May to November, you'll usually find the crew at diesel motorsport events.
Prices are shown on each product page and confirmed in your cart total before checkout. If anything about your order needs a second look, we call you before anything is charged beyond what you approved.
Shipping is calculated and shown in the cart before you pay — no estimated shipping that changes after the fact. Freight and oversized items are quoted up front.
Call the office at (765) 948-3164 before returning any part so we can get it handled quickly. Electrical and special-order competition parts may be non-returnable; the product page will say so.
Your contact details are used to process your order and answer your questions — nothing else. We do not sell customer information.
