I have been working with A1 transmission for quite a few years now and they give nothing but the best service they are on time and they are a bargain for the money that they charge you cannot go...
A1 Transmission & Marine
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A1 Transmission & Marine LLC, located in Hayward, CA, specializes in the transmission and axle rebuilding of various off-highway equipment, including marine, construction, and mining applications. Equipped with advanced diagnostic tools and a commitment to using OEM parts, the company ensures high-quality service while minimizing costs and downtime for its clients.
In addition to their rebuilding services, A1 Transmission & Marine offers comprehensive equipment repairs and maintenance, backed by a six-month warranty on complete rebuilds. The team is factory trained and knowledgeable about the latest products from leading manufacturers, ensuring that all work meets stringent OEM specifications and standards.
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Reviews

There service team (and Angelica), are top tier. On several occasions I have had to call them for service. They are very responsive with suggestions to help with addressing the problem before...
I am just greatful that ZF referred me to Kurt and his crew. I have had issues ongoing with a Cummins QSB 5.9 and a ZF Gear, little things that it seemed like most boatyards just could not...

I have worked closely with A1 for the past 3-4 years, and can say unequivocally that they are EXPERTS in their field and are driven to deliver high quality work. Their attention to detail is...
Oil pan leak meant I had to pull the engine to replace the gasket. A1 agreed to do it in mid May. In late May took the boat to KKMI and the engine was pulled by A1 and taken to their shop. After...
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