Motor Service Group LLC

MIAMI’S TRUSTED DIESEL ENGINE MACHINE SHOP SINCE 1949

Trusted across Miami and South Florida for precision diesel engine machining, cylinder head rebuilding, crankshaft grinding, and crack detection services for marine, heavy equipment, fleet, and power generation engines.
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Trusted by Industry Professionals

Brands Serviced & Sold

OEM and After Market Parts

Engine Parts Distributor
Distributor
OEM & Aftermarket
OEM & Aftermarket
What We Offer

Our Services

CYLINDER HEAD SERVICE

Most major diesel brands serviced

Complete diesel cylinder head rebuilding including pressure testing, resurfacing, valve grinding, injector tube replacement, crack detection, and precision inspection for marine and heavy equipment engines in Miami.

PRESSURE TESTING

Cylinder Head, Engine Block & Manifold Testing

Professional diesel head and block pressure testing services in Miami using calibrated equipment to verify casting integrity, cooling passage sealing, and structural reliability before reassembly.

ENGINE BLOCK MACHINING

Surfacing, Milling, Align Boring & More

Full-service diesel engine block machining including boring, honing, decking, counterbore cutting, sleeving, and align honing for Caterpillar, Cummins, Detroit Diesel, and large industrial engines.

MAGNAFLUX CRACK DETECTION

Unmatched crack detection

Advanced magnaflux crack detection in Miami to identify structural flaws in cylinder heads, crankshafts, blocks, and rods before machining or rebuild—preventing costly failures.

CONNECTING ROD CHECK & REPAIR

Precision connecting rod reconditioning including bushing replacement, resizing, polishing, and measurement verification to factory specifications for heavy-duty diesel engines.

R&R Pin Bushings

CRANKSHAFT & CAMSHAFT

Crankshaft Verification & Machining

Crankshaft grinding, polishing, straightening, and camshaft inspection using precision measuring tools to restore proper tolerances and bearing clearances for long engine life.

other services

Fabrication, Welding & Precision Machining

Custom machining, fabrication, welding, and specialty diesel engine services designed to support fleet maintenance shops, marine repair centers, and heavy equipment contractors across South Florida.

Why Choose Us

75+ YEARS OF
TRUSTED EXPERTISE

Motor Service Group has delivered precision diesel engine machining in Miami since 1949. Our facility supports marine engines, construction equipment, fleet vehicles, generators, and industrial diesel platforms with strict quality control and advanced machining equipment.

75+

YEARS OF EXPERIENCE

50K+

Engines Rebuilt

10K+

Satisfied Customers

100%

Quality Guarantee

OUR EXPERTS

MEET THE TEAM

Ray Weeks

Shop Manager

36 yrs experienced Machinist

Tim

Machinist / Industrial Mechanic

30 years experience

TJ

Cleaning Dept.

18 Years Experience

Patrick

Block inspection & rods connection

25 Years Experience

Carlos

Blocks, rods and alignbore

40 Years Experience

Vienes

Rods and crankshafts

15 Years Experience

Get Your Engine Machined Right
the First Time

When precision matters, choose Miami’s trusted diesel engine machine shop. We serve marine repair companies, fleet managers, heavy equipment contractors, and power generation facilities throughout South Florida.

Accurate diagnostics. Proper machining. Reliable results.

Contact us

SERVING MIAMI
& SOUTH FLORIDA

Located in Miami, Florida, Motor Service Group proudly serves Miami-Dade County, Broward County, Palm Beach County, and surrounding South Florida regions with professional diesel engine machining and inspection services.

Business Hours
Mon - Fri: 5:30 am - 2:00 pm
Location
6600 NW 77th Court, Miami, FL 33166, USA
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