Full-Service Automotive Machining in Hartford, WI
Our in-house machine shop at Bumper to Bumper Hartford offers expert machining services backed by decades of experience. We serve Hartford and the surrounding areas. You can also drop off your parts at any nearby Bumper to Bumper store for machine work delivery to our shop.






Machine Shop Services
- Engine Block Work
- Driveshaft Repair
- Complete Engine Rebuilding
- Cylinder Head Services
- Piston & Rod Work
- Bearing & Flywheel Machining
- Crankshaft Services
- Pins, Drums & Rotors
- Precision Balancing
- Valve Jobs
Drop-Off Instructions
Before sending in your project, call (262) 673-2740 to speak directly with one of our full-time machinists. We’ll confirm quote details, capabilities, and turnaround time. This helps us serve you better and avoid delays. We also offer convenient transfer of your job to and from our local stores (within reasonable weight limits).
Contact & Location
Bumper to Bumper Hartford
721 E Sumner St
Hartford, WI 53027
(262) 673-2740
Hours (CST)
Mon–Fri: 7:30am – 5:00pm
Sat: 8:00am – 12:00pm
Sun: Closed