San Diego's Trusted Engine Re-Manufacturing and Machine Shop Specialists

North County 760-745-4104 N. County Inland 858-888-7430 South County 619-915-6182 Temecula 951-900-4760


Do you have a diesel truck and live in the El Cajon area and need transmission help?  We can help!  Having modern day machines has had immeasurable impacts on the way we do business, but ensuring those machines are functioning properly is tremendously important, especially transmission issues arise. Fortunately, the experts here at MJM Engines have the experience and equipment to handle any type of transmission service or repair to big rig engines, semi trucks, diesel engines and more. We are not just a transmission shop and our service center is well equipped with the latest technology to adequately serve our customers. For more information on all of our services, call us at 760-745-4104 and remember here at MJM Engines, our loyal customers come first. We look forward to serving you!

Understanding Transmissions

Here at MJM Engines, we’ve been in the business long enough to have seen all types of transmission repairs and services needed, and we know that these types of engines take specialized, expert level care. Our technicians are well trained and finely tuned to all of the regular maintenance, installation services, repairs, conversions, and more that are needed. Each job is different and our staff wants to give the most personalized, custom service possible because we know that time is money, but that quality service takes time. We want you back on the road in no time. Your specific needs will always be #1 when we are completing your job, and our fully certified mechanics are second to none in the area.

Our Services

When we understand all of the components involved in a job, we can better service the issue and get you back on the road. Figuring out each component and what is needed is what makes us expert technicians, and restoring your rig to fully functioning is our number 1 goal. We aim for a smoothly functioning vehicle with an extended lifetime of use, and we are confident that you will be satisfied with our team at MJM Engines. Our services include but are not limited to:

Engine Conversion
Engine Repair
Engine Rebuild
Engine Replace
Engine Service
Engine Inspection
Diesel Truck Maintenance
Brake Repair
Transmission Repair

In addition to this above mentioned services, we are proud to offer Federal Department of Transportation (DOT) Annual Inspections to our customers, a must for any trucker. Handle the mechanical AND logistical aspects under one roof at MJM Engines!

Our technicians are on call at all hours of the day and night in case an issue arises. Remember, small issues that seem minor can easily turn into a major situation that can be costly and potentially dangerous for you and those around you on the road. Trust the experts at MJM Engines to diagnose and fix whatever engine troubles come upon you. We look forward to serving you and getting you back on the road as fast and safely as possible. With competitive rates and expert care, MiJM Engines is your engine expert. Call us today at 760-745-4104 to hear more about all of our services.

Don’t let your engine troubles cause you any more headaches. Trust the experts at MJM Engines to get you truckin’ ASAP! Call 760-745-4104 today for more information!