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M&J Auto Sales & Service - logo
(262) 670-9800
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M&J Auto Sales & Service - logo
Contact Us

Serving

Hartford, WI | Erin, WI

M&J Auto Sales & Service - logo
Request Call Back

Contact Us

(262) 670-9800

  • Home
  • Auto Repair Services
    • Air Conditioning Service & Repair
    • Alternator & Starter Repair
    • Auto Diagnostics
    • Battery Replacement
    • Belts & Hoses
    • Brake Service & Repair
    • Car Radiator Service
    • Check Engine Light Services
    • Steering & Suspension
    • Transmission Repair Service
  • Car Maintenance Services
    • Car Air Filter Replacement
    • Car Fuel System Services
    • Oil Change
  • Exhaust System Repairs
    • Catalytic Converter Replacement
    • Diesel Exhaust Systems
    • Exhaust Inspection and Leak Repair
    • Exhaust Manifold Repair
    • Exhaust System Replacements
    • Muffler Replacement
  • Tires
    • Alignment
    • Flat Tire Repair
    • Tire Balancing
    • Tire Rotation
  • Wisconsin State Emissions Testing Facility
  • Pre-Owned Inventory
    • Finance
    • Finance Calculator
  • About
    • Careers
    • Team
    • FAQs
    • Reviews
  • Serving Area
  • Contact
    • Request a Call Back
  • Home
  • Pre-Owned Inventory
    • Finance
    • Finance Calculator
  • About
    • Careers
    • Team
    • FAQs
    • Reviews
  • Serving Area
  • Contact
    • Request a Call Back
  • calculator
  • Home
  • Auto Repair Services
    • Air Conditioning Service & Repair
    • Alternator & Starter Repair
    • Auto Diagnostics
    • Battery Replacement
    • Belts & Hoses
    • Brake Service & Repair
    • Car Radiator Service
    • Check Engine Light Services
    • Steering & Suspension
    • Transmission Repair Service
  • Car Maintenance Services
    • Car Air Filter Replacement
    • Car Fuel System Services
    • Oil Change
  • Exhaust System Repairs
    • Catalytic Converter Replacement
    • Diesel Exhaust Systems
    • Exhaust Inspection and Leak Repair
    • Exhaust Manifold Repair
    • Exhaust System Replacements
    • Muffler Replacement
  • Tires
    • Alignment
    • Flat Tire Repair
    • Tire Balancing
    • Tire Rotation
  • Wisconsin State Emissions Testing Facility
  • Pre-Owned Inventory
    • Finance
    • Finance Calculator
  • About
    • Careers
    • Team
    • FAQs
    • Reviews
  • Serving Area
  • Contact
    • Request a Call Back
Call Us
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Request Call Back

Learn more about

M&J Auto Sales & Service

Serving Hartford, WI, and the surrounding communities, M&J Auto Sales and Service specializes in automotive repair and vehicle maintenance services. We offer a 12-month/24,000-mile nationwide warranty on qualifying repairs and work with all insurance and aftermarket warranty companies. M&J Auto is a CARFAX Top-Rated Dealer. Call us today.

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Serving Area

Hartford, WI

Erin, WI

and surrounding areas

CONTACT US

(262) 670-9800

Send a Message
BUSINESS HOURS
Mon - Fri
8:30 am - 5:00 pm
Sat - Sun
Closed

Monday–Friday: 8:30 AM–5:00 PM (Closed for Lunch 12:00 PM–1:00 PM) Saturday (Sales Only): By Appointment Only

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