Engine block being hoisted in MJM Engines shop
Under New Ownership and Management

RV ENGINE REBUILDING. DONE RIGHT.

Gas and diesel engine rebuilds, remanufacturing, and precision machine work for motorhomes, all handled in-house.

Carry-Out Engine Service. Pickup and drop-off available within 50 miles.

30+
Years in Business
100%
In-House Machining
100+
Years Combined Experience
2 YR
24,000-Mile Warranty*

ONE SHOP. ONE PROCESS. ONE WARRANTY.

Removed RV engines receive complete in-house attention from inspection through final quality check.

HOW CARRY-OUT SERVICE WORKS

01

REMOVE

Your shop, dealer, or mechanic removes the engine from the RV.

02

TRANSPORT

Bring it to MJM, or ask about pickup within our 50-mile service area.

03

REBUILD

We inspect, machine, source parts, and rebuild the engine in-house.

04

RETURN

Final quality check, written warranty, and pickup or arranged drop-off.

RV ENGINE CAPABILITIES

  • Gas and diesel engine rebuilding
  • Complete remanufacturing
  • Diagnostics and precision inspection
  • Cylinder-head machining
  • Short-block and long-block assemblies
  • Boring, honing, decking, and grinding
  • Valve-seat cutting and line boring
  • OEM replacement-parts sourcing
MJM Engines machinist at work

BUILT FOR EVERY RV SERVICE CUSTOMER

RV OWNERS

A clear path to restore the original engine without sourcing an unknown replacement.

REPAIR SHOPS

A capable machine-shop partner for removed engines, with commercial pricing available.

RV DEALERSHIPS

Consistent outside engine support and a single point of accountability.

FLEETS

Reliable rebuild support that helps control replacement cost and vehicle downtime.

The MJM Difference

NO OUTSOURCING. NO SHORTCUTS.

Certified technicians, OEM-spec rebuilding, direct quality control, and service backed by a written 2-year/24,000-mile warranty.*

Ask About Introductory Offers and Shop Pricing

READY FOR A STRAIGHT ANSWER?

Call (760) 745-4104 or request a quote online.

222 N. Vinewood St, Escondido, CA 92029

Monday through Friday, 8:00 a.m. to 5:00 p.m.

Carry-out service only: the customer or the customer's service provider is responsible for engine removal and installation. Pickup and drop-off apply to removed engines within 50 miles; availability, fees, and scheduling are confirmed at booking. *Warranty coverage is subject to written terms, conditions, and eligibility.