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M&M Alternators and Batteries Inc

4.8

About this business

Location details

9417 Sierra Ave. Unit B, Fontana, CA, 92335, United States

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WeekdayScheduleStatus
Mon8:00 a.m. to 6:00 p.m.
Tue8:00 a.m. to 6:00 p.m.
Wed8:00 a.m. to 6:00 p.m.
Thu8:00 a.m. to 6:00 p.m.
Fri8:00 a.m. to 6:00 p.m.
Sat8:00 a.m. to 6:00 p.m.
SunClosed
4.8115 reviews
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Danny Servin's profile image
Danny Servin 
on Google
5 days ago

Came too the is shop on this past Saturday July 12th, 2025 . I was Referred by CarMax - Ontario. Spoke with a Serviced Rep. Armando. Made a appointment to be here On Monday July 14th. These Mechanics really helped me out...in getting my Ford Explorer Service in Valuable time . They answered all my questions. Met Daniel , & he was Excellent in getting the rest of my answers done in a quickly matter. I definitely recommend my friends & family to come too this shop , here at M&M Alternators & Repair shop - Fontana keep up the ... read more

joy marshall's profile image
joy marshall 
on Google
a month ago

Monday: excited to find the shop. Got a repair time of 2.5 hours, and an estimate. Tuesday: I called to make sure the part was available. Wed: Arrived at 8:00 a.m... was THEN told the part wouldn't come till at least 12:00pm (4 hours later), but that I would be out by 1-1:30. They weren't done til 2:30pm. Sadly they were disrespectful of my time, and my concerns; AND they didn't even speak English, so they didn't give me any updates on what was done, when the part came, how it all turned out. Very hard communication, and I f... read more

Beth Cardenas's profile image
Beth Cardenas 
on Google
2 months ago

Great service, have came here twice already and they always do great work. 

Joe Cuevas's profile image
Joe Cuevas 
on Google
2 months ago

Like always, great customer service and great pricing. Definitely a 10 star. 

Keiana Brooks's profile image
Keiana Brooks 
on Google
2 months ago

Thank you Daniel for your outstanding customer service! From the diagnostic to the the prices! 10/10 

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Frequently asked questions about M&M Alternators and Batteries Inc

How is M&M Alternators and Batteries Inc rated?

M&M Alternators and Batteries Inc has a 4.8 star rating with 115 reviews. 

When is M&M Alternators and Batteries Inc open?

M&M Alternators and Batteries Inc is closed now. It will open tomorrow at 8:00 a.m. 

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