
Built for Performance
Tuned for Power
Welcome to Diamond Diesel, your premier diesel engine mechanic shop that specializes in maintenance, tuning, and performance upgrades for diesel engine trucks. We are dedicated to providing top-notch service and expertise to keep your diesel trucks running at their best.
OUR SERVICES
PARTS AND ACCESSORIES
Highly skilled working with EFI Live, EZ Lynk and SCT tuning platforms
From routine maintenance to complex engine tuning, Diamond Diesel offers a wide range of services to meet all your diesel truck needs. Our team of skilled technicians is committed to delivering high-quality workmanship and exceptional results for every service we provide.
At Diamond Diesel, we not only offer top-notch repair and maintenance services but also provide a comprehensive selection of high-quality parts and accessories for diesel trucks. Whether you're looking for performance upgrades or replacement parts, we've got you covered.
From bench tuning to on-truck performance upgrades, we’ve got you covered with our in-house EFI Live tuning expertise. Not local? No problem! Ship us your Cummins or Duramax ECM, and we’ll return it pre-loaded and ready to perform at its best.
VISIT DIAMOND DIESEL TODAY
Ready to experience the expertise and dedication that sets Diamond Diesel apart? Schedule your appointment now and trust our skilled team to handle all your diesel truck needs with precision and care. We’re committed to delivering exceptional service and ensuring your complete satisfaction every time you visit.

WHY CHOOSE DIAMOND DIESEL?
Diamond Diesel is committed to delivering expert diesel truck services backed by industry-leading knowledge and precision. Our experienced team ensures your vehicle operates at peak performance with reliable, high-quality care.
Fast Reliable Service
We prioritize getting you back on the road quickly and with courtesy vehicles available, your routine won’t miss a beat.
FLEXIBLE DROP OFF &
COURTESY VEHICLE
Our secure facility and convenient key drop allow you to leave your truck before or after hours, on your schedule.
ADVANCED DIAGNOSTICS
Equipped with top-tier factory diagnostic tools and scan software, we handle everything from simple re-flashes to complex diagnostics beyond what typical shops or dealerships offer.
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What are the service intervals for my vehicle?This varies based off your truck make and you can always check your service manual for service intervals but here is what we recommend: Oil change: Every 6,000 km Fuel filters: Every 12,000 km or every second oil change Air & cabin filters: As needed (we check them at every oil change) Transmission service: Every 100,000–120,000 km Differential service: Every 60,000–80,000 km Transfer case service (if applicable): Every 60,000–80,000 km Brake/front end check: At every oil change Coolant flush: Every 80,000 km Brake fluid flush: Every 2 years or 50,000 km
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Do you perform alignments?We are not tooled to perform alignments in our shop, but we have multiple local shops that we work with frequently that will align your vehicle for us after we perform front end/steering repairs.
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Do you perform regular maintenance like brakes or steering repairs?Yes! We do it all here. From basic or complex diagnosis to brake repairs, maintenance, ECM/TCM tuning, performance upgrades and so on; we got you covered!
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Can I drop off my vehicle for my appointment outside of your business hours?Absolutely! We have an open parking lot and a key drop at our front door so you can drop off your vehicle if you cannot make it to us during our business hours.
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I need a commercial vehicle inspection annually – can you do this for me?We sure can! We are a certified inspection facility and handle plenty of fleet vehicles for annual or semi-annual inspections as well as out of province inspections and notice and order inspections.
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Do you provide courtesy vehicles?Yes! We provide complimentary loaner vehicles, so you can stay on the move while we take care of your truck.
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What vehicles do you not service?We do not take on the following due to parts availability and other limitations: 7.3L IDI & Powerstroke (1988–2002) 6.5L GMC/Chevrolet (1992–2000) Izuzu, E-Series Vans, Mercedes, BMW, Sprinter Vans, VW TDI Jeep Diesels (except the 3.0L EcoDiesel)
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Do you rebuild transmissions?Not in-house, no. We can check all external components as well as fluids and perform diagnosis on the transmission for any issues you may be experiencing but internal transmission repairs/rebuilds are sent out to one of our trusted shops we work alongside that specialize in transmission repairs and rebuilds. We handle all the logistics during this sublet, from dealing with the transmission shop to relaying information to you so you don’t have to jump from shop to shop.
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I’m looking at buying a diesel – can you inspect it for me before I buy it?Yes, and we highly recommend it! Let us check over the diesel you are interested in purchasing before you buy it so we can tell you whether it’s in your best interest to proceed with the purchase. We perform a complete bumper to bumper inspection, so you have peace of mind knowing you found a good, running diesel.
TRUSTED BRANDS WE WORK WITH



































