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A person working under a vehicle. They are wearing a long-sleeve shirt and gloves. The setting is a garage.

A Local Shop Built on Trust, Not Guesswork

Transmission Rebuilds, Engine Replacements & Diesel Repair You Can Trust.

From compact cars to heavy-duty diesel trucks — we do the jobs other shops can't.

DK Auto & Diesel Services Inc.

Transmission Rebuilds & Replacements

ATRA-certified transmission experts handling the work others won’t.

Transmission Rebuilds & Replacements

ATRA-certified transmission experts handling the work others won’t.

Red icon of a manual transmission next to a cutaway view of an engine.

Engine Replacements & Overhauls

Full engine services - from compact cars to medium-duty trucks, gas or diesel.

Red gear icon next to a detailed grayscale engine.

Diesel Service & 

Repair

Diesel specialists for fleet and heavy-duty trucks - Ford, GM, Sprinter, F-Series certified.

Car engine and red car icon.
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Since 1990, DK Auto & Diesel Service has been the go-to shop for major repairs that other shops turn away. We're a family-owned business with 8 highly trained technicians who specialize in the complex work: transmission rebuilds, engine replacements, and diesel service.

Transmission Rebuilds, Engine Replacements & Diesel Repair in Magnolia, TX

Welcome to DK Auto & Diesel Service Inc.

ATRA logo in black and yellow:

Proud ATRA Member

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ASE Certified Technicians

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Free Wi-Fi 

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Local Shuttle

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Financing Available

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Waiting Room

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Beverages & Snacks

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TV Available

Complete Auto Repair Services

Beyond our specialty services, we provide comprehensive auto repair and maintenance for all your vehicle needs.

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Brake rotors, pads, and lines; automotive parts against white background.

Brake Service & Repair

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Exhaust System Service

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Air Conditioning Repair

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Oil container and oil filters.

Oil Changes Service

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Two metal gears interlocked, silver color, for mechanical motion.

Preventive Maintenance

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Alignment sensor attached to a vehicle's wheel, showing a grid of reflective markers for measuring wheel alignment.

Wheel
Alignments

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Trusted by Our Community Since 1990

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Backed by One of the Best Warranties in the Industry

We stand behind our work with comprehensive coverage that gives you peace of mind.

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24K Miles

Mileage Coverage

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24 Months

Time Coverage

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Warranty on Parts & Labor

Pay over time with our financing options

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From Compact Cars to Heavy-Duty Trucks

Passenger Cars

Honda Accord, Toyota Camry, Ford Fusion

Light Trucks

Ford F-150, Chevy Silverado, Ram 1500

Heavy-Duty Trucks

Ford F-350, F-450, F-550

Diesel Vehicles

Power Stroke, Duramax, Cummins

Medium-Duty

Box trucks, delivery vehicles

Sprinter Vans

Mercedes Sprinter, cargo vans

All Vehicles

Check Full List of Vehicles

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In-House Towing Available

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During Business Hours: 7am – 5pm

Vehicle broken down? We can help. Our in-house towing service operates during business hours to get you safely to our shop.