From highway tractors to heavy vocational trucks to major off-road equipment, when an engine reaches the end of its useful life, you need more than repairs. You need a trusted team that can diagnose the real problem, rebuild or replace the engine properly, and get it back into service with confidence. TOP GUN HD builds, rebuilds, and replaces heavy-duty diesel engines for on-road and off-road applications across Alberta, focusing on safety, reliability, and long-term uptime.
Whether your unit is showing its age, experiencing failure, or you are planning a proactive overhaul before a critical project or contract, we help you make the right decision and deliver work you can trust.
Professional heavy-duty engine builds that restore power, reliability, and confidence in Alberta’s toughest working conditions.
We treat every engine build like a critical asset, not a quick fix. Our team inspects, measures, and rebuilds to strict standards, replacing worn components and correcting issues that led to failure in the first place. The goal is a strong, dependable engine that performs as it should, reduces downtime, and gives you confidence in your investment.
We support both on-road and off-road diesel engines, including:
Oil and gas units such as vac trucks, fluid hauling units, hot oilers and service trucks
Heavy off-road equipment used in mining, construction, civil, and forestry operations
Highway tractors and transport trucks
Vocational and specialty trucks
Dependable Power For Alberta’s Hardest-Working Trucks
Long-haul, local haul, vocational, and oilfield highway units demand engines that handle heavy loads, extreme temperatures, and long operating hours. We perform in-frame and out-of-frame engine builds for transport fleets and owner-operators who need work done right the first time. Our focus is simple: a truck that runs smoothly, pulls strong, and goes back into service without recurring engine problems.
We work with major engine platforms including:
Heavy-Duty Engines Built For Tough Industrial Environments
Off-road engines live hard lives. High hours, extreme temperature swings, heavy loads, and demanding conditions in mining, pipeline, forestry, and industrial environments all take a toll. When it is time for a rebuild, you need experienced heavy-equipment technicians who understand how these powerplants are used in Alberta.
TOP GUN HD supports engine builds for large construction and industrial equipment, including:
As engines age or begin to experience serious internal issues, problems can escalate quickly. In many cases, the signs are clear that the current engine is no longer a reliable long-term solution:
Planning ahead to extend the life of a critical unit instead of replacing it
Oil contamination, bearing failure, or severe internal damage
Loss of power, smoke, hard starts, poor fuel efficiency
Catastrophic failures or repeated major repairs
High hours and performance deterioration
Engine builds are often a smarter long-term investment than constant ongoing repairs or purchasing new equipment at today’s pricing.
Let’s chat about a diesel engine build that restores power, reliability, and confidence.
TOP GUN HD supports heavy-duty customers across Alberta, starting from Lac La Biche and Plamondon and extending into Fort McMurray, Fort McKay, Conklin, northeastern Alberta, central Alberta, and surrounding industrial regions.
Mining
Oil & Gas
Drilling
Civil Earth Works
Pipeline Construction
Forestry & Agriculture
Transportation & Logistics
If your work relies on dependable engines, we understand what is at stake and we build accordingly.
Choosing the right team for an engine build matters. You are trusting someone with one of the most critical and expensive components in your truck or equipment, and the outcome needs to support reliability, performance, and long-term confidence. TOP GUN HD approaches every engine build with professionalism, careful planning, and respect for how these engines are actually used in Alberta. Your engine build is not just a job. It is a commitment to reliability.
Call us to talk through symptoms, condition, and your best options. We will give you straight answers and a professional plan.
Yes. We determine the best approach based on engine condition, failure type, and long-term cost effectiveness.
Yes. We support highway tractors, vocational trucks, and major off-road equipment used in industrial environments. We do not work on personal vehicles and regular sized diesel trucks.
Absolutely. We diagnose the engine, review options, and help you choose the smartest path forward.
We regularly service Cummins, Detroit Diesel, Caterpillar, PACCAR/MX, Volvo/Mack, Navistar, and similar heavy-duty platforms.
Yes. We can assist with diagnostics, assessment, and certain stages in the field. Final engine builds are primarily completed in our facility or at your site to ensure quality.
500+ Happy Clients
100% Satisfaction
Jack M.
Fleet Manager
TOP GUN HD responds quickly, diagnoses problems accurately, and delivers solid heavy-duty repairs. They understand how important uptime is to our operation.
Billy D.
Mining Superindendant
Professional, reliable, and safety-focused. We trust TOP GUN HD with our heavy-duty fleets on and off the road.
Why Choose Us?
Our Services
24/7 Emergency Service
Not Sure if a Rebuild Is the Right Move? Contact us and we’ll walk you through your options, costs, and the smartest long-term decision.
We go wherever the roads go
TOP GUN HD meets and exceeds industry safety and compliance standards to support heavy-duty industrial, commercial, and fleet operations across Alberta.
