Motor Service Group

What Motor Service Group does

Motor Service Group LLC operates a single-location diesel engine machine shop in Miami, Florida, delivering precision machining and repair services for marine, commercial fleet, heavy equipment, and power generation diesel platforms. The company was founded in 1949 and serves customers across Miami-Dade, Broward, and Palm Beach counties, with stated reach extending to ten-plus South Florida municipalities. Core capabilities include magnaflux crack detection, calibrated pressure testing of heads, blocks, and manifolds, crankshaft grinding and polishing, complete engine block machining (boring, honing, decking, sleeving, align honing), cylinder head rebuilding, and connecting rod reconditioning. The shop works on Caterpillar, Cummins, Detroit Diesel, and large industrial engines, using in-house precision equipment and ASE-credentialed technicians to restore components to OEM specifications and document tolerances. Revenue is generated through job-based professional services priced per scope, supplemented by OEM and aftermarket parts distribution as an authorized dealer for brands including Performa. Customers reach the business via local SEO landing pages for individual service areas, blog content on diesel repair topics, Google Reviews, a free-estimate website form, and direct phone contact; service delivery is direct, with engines and components brought to the Miami facility. The staff includes seven named personnel with combined machining experience exceeding 164 years, providing a highly experienced workforce that concentrates on Caterpillar, Cummins, and Detroit Diesel platforms among others.

Name

Motor Service Group

Legal name

Motor Service Group LLC

Website

https://motorservicegroup.com

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

1–10 employees

Short description

Motor Service Group is a Miami-based diesel engine machine shop founded in 1949 that provides precision machining, cylinder head rebuilding, crankshaft grinding, magnaflux crack detection, and parts distribution for marine, fleet, heavy equipment, and power generation operators across South Florida.

Ownership category

akta.pro rank

Product category

Diesel Engine Repair and Machining Services

SIC

Engines & Turbines (3510)

akta.pro primary industry

Cylinder Heads, Blocks & Rotating Assemblies Machining/Rebuild Services (TLAKALAG)

Keywords

• Diesel engine machining
• Engine rebuilding services
• Cylinder head repair
• Crankshaft grinding
• Magnaflux crack detection

Headquarters

HQ city

Miami

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Others

Revenue model

1. Diesel Engine Repair and Machining Services: Core revenue from precision diesel engine machining and repair services including engine block machining, cylinder head rebuilding, crankshaft grinding, magnaflux crack detection, pressure testing, and connecting rod reconditioning. Services are quoted on a per-job basis based on engine type, damage scope, and required machining.
2. OEM and Aftermarket Parts Sales: Revenue from distribution of OEM and aftermarket diesel engine parts as an authorized distributor for major brands including Performa, engine parts, and related components.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Motor Service Group is a precision diesel engine machine shop that performs in-house engine block machining, cylinder head rebuilding, crankshaft grinding, magnaflux crack detection, pressure testing, and connecting rod reconditioning. It serves marine, heavy equipment, commercial fleet, and power generation customers across South Florida, with revenue generated from per-job service fees and OEM/aftermarket parts distribution.

Product overview

Motor Service Group is a single-location diesel engine machine shop offering precision machining and repair services since 1949. The company provides a unified set of integrated diesel engine services including engine block machining, cylinder head rebuilding, pressure testing, magnaflux crack detection, crankshaft grinding/polishing, connecting rod reconditioning, and custom fabrication/welding. These services are offered as a coordinated portfolio where complete engine rebuilds can be supported through multiple service lines performed at the same facility. The shop serves marine engines, heavy equipment, commercial fleet vehicles, power generation systems, and industrial diesel platforms across South Florida.

Differentiator

Problem solved

Functional benefit

Products and services

• Engine Block Machining Full-service diesel engine block machining including boring, honing, decking, counterbore cutting, sleeving, and align honing for Caterpillar, Cummins, Detroit Diesel, and large industrial diesel engines. Serves fleet operators, marine operators, heavy equipment contractors, and power generation facilities across South Florida.
• Cylinder Head Service Complete diesel cylinder head rebuilding including pressure testing, resurfacing, valve grinding, injector tube replacement, crack detection, and precision inspection for marine and heavy equipment diesel engines.
• Pressure Testing Professional diesel head and block pressure testing services using calibrated equipment to verify casting integrity, cooling passage sealing, and structural reliability before reassembly.
• Magnaflux Crack Detection Advanced magnaflux magnetic particle crack detection to identify structural flaws in cylinder heads, crankshafts, blocks, and connecting rods before machining or rebuild, preventing costly failures.
• Crankshaft Services Crankshaft grinding, polishing, straightening, and camshaft inspection using precision measuring tools to restore proper tolerances and bearing clearances for long engine life.
• Connecting Rod Service Precision connecting rod reconditioning including bushing replacement, resizing, polishing, and measurement verification to factory specifications for heavy-duty diesel engines.
• Other Services 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.

Quantifiable outcome

• 50,000+ engines rebuilt since 1949
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Caterpillar Inc. World's largest diesel engine OEM for heavy equipment, marine, and power generation; Caterpillar's Cat Reman program and dealer service network directly overlap with MSG's engine rebuilding work on Caterpillar platforms.
• Cummins Inc. Major diesel engine manufacturer with a global authorized service network; MSG services Cummins platforms, and Cummins' dealer remanufacturing operations are a broad incumbent comparable to MSG's independent rebuild services.
• Stewart & Stevenson (now REV Group): Long-standing provider of diesel engine services, power generation equipment, and industrial engine rebuilds across multiple US geographies, historically comparable to MSG's multi-vertical diesel service model.

Regional players

• Ring Power Corporation: Caterpillar dealer with multiple service locations across Florida, providing diesel engine repair, rebuild, and parts for heavy equipment, marine, and power generation customers in the same South Florida geography as Motor Service Group.
• Velocity Vehicle Group: Formerly Florida Detroit Diesel-Allison, Velocity operates Detroit Diesel and Allison authorized service centers across Florida serving commercial truck, marine, and industrial customers with engine rebuild and machining services comparable to MSG's offerings.
• Waukesha-Pearce Industries: Industrial engine distributor and service provider for Caterpillar, Waukesha, and other diesel platforms across Texas and the Gulf region, offering engine rebuild, machining, and parts comparable to MSG's commercial diesel service offerings.
• Yancey Power Systems: Caterpillar engine and power generation service provider operating across the Southeastern US, offering diesel engine rebuild, repair, and field service for industrial and marine customers comparable to MSG's regional service model.

Direct peers

• Diesel Power Products: Independent diesel engine specialist offering performance and remanufactured diesel engines, machining services, and parts for heavy-duty trucks and industrial applications - a direct comparable to MSG's independent diesel rebuild model.
• Engine Distributors Inc. (EDI): Independent engine remanufacturer offering diesel and gas engine remanufacturing, machining, and component reconditioning services - directly comparable business model to Motor Service Group's precision diesel engine rebuild services.
• Inland Diesel Inc. Independent remanufacturer of diesel engines and components for heavy-duty applications, providing precision machining, block work, crankshaft service, and cylinder head rebuilding closely aligned with MSG's service portfolio.

Market position

Strengths4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/motorservicemiami
• LinkedInlinkedin.com/company/motorservicegroup

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Motor Service Group