MAPCO Machine Shop

Business Details

Trusted Automotive Machining & Repair Services in Sunbury, PA

At MAPCO Machine Shop, we have dedicated ourselves to automotive machining excellence since the 1980s. As a division of Mertz Auto Parts Company, which has served Sunbury, PA for over 50 years, we combine decades of industry heritage with cutting-edge capabilities. Our team specializes in custom engine builds, driveshaft assembly, hydraulic hose fabrication, and U-bolt bending tailored to meet unique customer requirements. With over 75 years of combined experience in engine machining and 25 years in driveline services, we serve diverse industries including racing, agriculture, and transportation.

Our facility features advanced equipment like engine dyno testing up to 1600 HP and carbon fiber driveshaft manufacturing. We maintain a massive inventory of Parker hoses and fittings while offering same-day service for critical repairs. Our commitment to personalized solutions ensures every project receives meticulous attention to detail. We take pride in supporting local businesses while delivering nationwide service through our expertise. Backed by long-standing partnerships with suppliers like Allstar Performance Parts, we continue evolving to meet modern automotive challenges.

Services

Engine Building Driveshaft Assembly Hydraulic Hose Making U-Bolt Bending Fly Wheel Surfacing

Highlights and features

We offer 75+ years combined experience in engine machining and building
Our services are custom tailored to each vehicle's unique specifications
We provide rapid hydraulic hose assembly with extensive Parker fittings inventory
Our carbon fiber driveshaft expertise serves specialized racing industries
U-bolt bending completed while you wait with immediate turnaround

Website

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Services

Engine Building

Our engine specialists create high-performance builds for racing, agriculture, and industrial applications. With capabilities up to 1600 HP dyno testing, we handle LS engines, tractor pulling, and custom restorations. Every build receives precision machining including crankshaft grinding, valve jobs, and head surfacing to optimize performance for your specific application.

Driveshaft Assembly

We fabricate and repair steel, aluminum, and carbon fiber driveshafts for vehicles ranging from UTVs to commercial trucks. Our balancing services accommodate single or three-piece shafts while meeting strict racing safety standards. Technicians use advanced equipment to create custom configurations that enhance vehicle performance and reliability in demanding environments.

Hydraulic Hose Making

As one of few local providers, we create custom hydraulic hoses using Parker components and specialized steel lines. Our rapid turnaround service addresses urgent leaks with immediate assembly while maintaining strict pressure specifications. Inventory includes diverse fittings and configurations to support agricultural, industrial, and racing equipment maintenance needs.

U-Bolt Bending

Our precision bending service creates U-bolts from 3/8 to 1 inch diameter steel for axle widths up to 6 inches. Using multiple die configurations, we produce square, half-moon, and full-round bends while customers wait. This critical suspension component receives exact measurements from broken samples to ensure proper fit and structural integrity for heavy-duty applications.

Fly Wheel Surfacing

We provide precision flywheel resurfacing to restore proper clutch engagement surfaces. The process removes warping while maintaining critical tolerances for high-performance and racing applications. Combined with our balancing services, this ensures smooth power transfer and extended component lifespan for demanding automotive uses.

Questions

What specialized engine services do you offer?

We build custom engines for racing, agriculture, and industrial applications including LS engines, tractor pulling, and circle track racing configurations with dyno testing up to 1600 HP.

Can you create custom driveshafts?

Yes, we fabricate steel, aluminum, and carbon fiber driveshafts in custom lengths and configurations for vehicles from UTVs to commercial trucks with balancing services available.

Do you provide same-day hydraulic hose services?

We offer rapid hydraulic hose assembly and repair using our extensive Parker fittings inventory while customers wait in most cases.

What U-bolt options are available?

We bend U-bolts from 3/8 to 1 inch steel in square, half-moon, and full-round configurations for axle widths up to 6 inches while you wait.

What industries do you serve?

We support racing (dirt track, drag racing), agriculture, excavation, transportation, and industrial sectors with custom machining solutions tailored to specific application requirements.

Reviews (3)

Write a Review

Vernon Weaver

Nov 27, 2021 Report

Good service, Mapco fixed a drive shaft for a dump truck, I dropped the shaft off one day and they called the next day with it fixed. If you need a drive shaft fixed check with Mapco!

Ron Jon

Aug 15, 2021 Report

Needed a driveshaft repaired that sheared off. They told me it would be at least a week but they hustled and got it done in 3 days. Shaft fit perfectly with no vibrations.

Bearclaw Chris Lapp

Feb 22, 2021 Report

Had them shorten a driveshaft for a truck project, when I talked to them about an estimate they said it would be over two weeks, but I got a call the next day they said it was done. Its a bit of a hike for me to get there but its well worth the trip. They even sanded it and painted it for me, which I did not expect, all for like 110 bucks. I will definitly be giving them more buisness in the future.

Only reason for the 4 stars was I didnt have a mask and they were pretty rude about it, made me stand outside on a pretty cold day while waiting for the clerk to get the measurements for the driveshaft