E & M Machinery in Baltimore: Transmission Rebuild and Overhaul for Heavy Equipment
E & M Machinery is a heavy-equipment transmission specialist located in Baltimore that rebuilds, repairs, and overhauls industrial and commercial transmissions rather than passenger-vehicle transmissions. The shop serves construction contractors, quarry operators, and fleet owners who need transmissions restored to working condition, not quick roadside fixes.
What E & M Machinery actually is
E & M Machinery focuses on transmission rebuilds for equipment like excavators, wheel loaders, dozers, and dump trucks. This is distinct from the passenger-car transmission shops found throughout Baltimore. The operation involves disassembling transmissions to component level, inspecting wear, replacing seals and clutches, and reassembling units to manufacturer specifications. Work is project-based and typically takes weeks, not hours, because each rebuild is custom to the equipment model and the damage found during teardown.
Services and pricing
The shop performs full transmission rebuilds, which typically range from $2,500 to $8,000 depending on transmission size and complexity. A rebuild on a mid-size loader transmission may cost $4,000 to $5,500; a large quarry truck transmission can exceed $7,000. Partial repairs, such as seal replacement or clutch work without full disassembly, cost $800 to $2,000. The shop also supplies remanufactured transmissions as a faster alternative to rebuild; these are priced $3,500 to $6,500 and carry a 90-day warranty. Call to confirm current pricing, as component costs fluctuate with material markets.
Labor is charged at $65 per hour for diagnostic work and disassembly. A typical rebuild diagnostic takes 4 to 8 hours; customers pay this fee upfront, though it is credited toward the total rebuild cost if they proceed. This approach prevents surprise pricing and ensures the shop identifies all damage before committing to full work.
How E & M Machinery compares to other Baltimore transmission options
Baltimore has several independent transmission shops, but most focus on passenger vehicles and light trucks. Cottman Transmission, with multiple Baltimore-area locations, handles automatic transmissions for cars and SUVs; they offer rebuilt units with a 3-year/unlimited-mile warranty but do not service heavy equipment. Superior Transmission in Dundalk similarly specializes in passenger vehicles.
Heavy-equipment transmission work in the Baltimore region is limited. E & M Machinery's strength is scope: they understand loader transmissions, excavator drive units, and quarry-truck systems that most shops cannot touch. For a contractor with a disabled wheel loader, E & M Machinery is often the only local option; shipping a transmission to a regional heavy-equipment specialist in Pennsylvania or Ohio adds cost and downtime. For a passenger-vehicle transmission, Cottman or Superior Transmission will be faster and cheaper.
Who E & M Machinery suits and who it does not
E & M Machinery serves contractors and fleet operators whose equipment failure stops job sites or revenue. If your excavator or dump truck transmission fails mid-project, a rebuild here keeps you operating within weeks. The shop also works well for owners of older equipment where replacement is costlier than repair.
This shop does not suit passenger-car owners. A consumer with a Chevy or Honda transmission problem should go to Cottman or an independent auto-transmission shop; they will be faster and price-competitive. E & M Machinery also does not handle manual transmission rebuilds on cars or light trucks, only hydraulic and automatic heavy-equipment units.
What the first visit involves
Contact E & M Machinery with the equipment make, model, and year, and describe the transmission symptom (no forward gear, slipping, noise). If possible, provide the transmission serial number or model plate. The shop will discuss whether a rebuild or remanufactured replacement makes sense and quote a diagnostic fee, typically $300 to $500.
Bring the transmission to the shop, or arrange for the shop to collect it if you lack transport. Removal is your responsibility unless you contract with a local equipment mechanic to handle it. Turnaround for a rebuild is usually 3 to 4 weeks once teardown is complete; remanufactured units ship in 5 to 7 business days.
Hours, parking, and logistics
E & M Machinery operates Monday through Friday, 7:30 a.m. to 4:30 p.m., with a small yard for equipment delivery and pickup. Street parking is available. The shop is not accessible by public transit; a personal vehicle or trailer transport is necessary. Verify hours by phone before visiting, as seasonal or project-based closures occasionally shift the schedule.
E & M Machinery fills a narrow but essential gap in Baltimore's automotive-repair landscape: contractors and fleet owners facing heavy-equipment transmission failure have few local alternatives and no faster path to repair.


