Mountain Transmission is located in Mt. Helena, and we serve a wide area. We sell transmissions throughout the state and offer up to a 3 year-100,000 mile warranty.

We specialize in automatic transmission repair, Standard transmission Repair, Transfer Case Repair, Transmission sales transfer case sales, Parts sales, auto repair, welding

We’re committed to providing you with the highest level of service, so you’ll always choose us for your transmission and transfer case needs. We offer all your maintenance and repair needs. For most people, auto maintenance and repair is not fun or convenient. So, we want to make the process as easy and enjoyable as possible for you. We genuinely care about your car and your experience, and it shows.


Our first-time customers continually become our long-term customers time and time again, choosing us for all their auto needs. We may not be related, but you’ll feel like we’re family.

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Tel: 406-458-4918
Fax: 406-458-6099

1079 Trails End Road
Helena, MT 59602

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