21426 N 14th Ave. Phoenix, AZ 85027 | Mon-Fri 8am-5pm Sat: By Appt. | (623) 244-8887
Hiring Diesel Technicians, $5,000 Sign-On Bonus

Semi Truck Services in Phoenix and the Surrounding Areas

A purple semi truck is parked in front of a row of school buses.

At S&K Transmission & Diesel Repair, we are dedicated to helping long-haul drivers keep their rigs running and driving like new. Our full service semi truck shop in Phoenix is equipped with everything necessary to perform complex repairs and preventative maintenance for all foreign and domestic 18-wheelers.


Whether you need a routine oil change or heavy-duty diesel engine repair, we’re here to help. Give us a call to learn more about our nearby semi repair center or to request an estimate for the cost of big rig repair in Phoenix.

  • Full Service Semi Repair
  • Big Rig Repair
  • 18 Wheeler Repair
  • Tractor Trailer Repair
  • Diesel Semi Repair
  • Semi Truck Brake Repair
  • Big Rig Chassis Repair
  • Big Rig Transmission Services
  • Truck Starting System Repair
  • Detroit Diesel Repair
  • Fleet Vehicle Maintenance
  • Big Rig Oil Change
  • Semi Truck Maintenance
  • Semi Truck Fluid Services
  • Semi Truck Glow Plugs
  • Truck AC Repair
  • Big Rig Electrical Repair
  • Diesel Powertrain Services
  • Diesel Fleet Services
  • Cummins Repair & Maintenance

Full Service Big Rig Repair

Our tractor trailer mechanics are skilled at all aspects of truck repair. No matter what issue your heavy duty vehicle is facing, we can fix it.


This includes services such as truck chassis repair, drivetrain repair, powertrain repair, cooling system repair, semi truck transmission repair and rebuilding, suspension and steering repair, fluid leak repair, fuel system repair, and more. If you experience any starting or driveability issues with your truck, call us to schedule professional semi repair in Phoenix.

A close up of a motorcycle engine with a hole in it

Semi Truck Engine Repair

Large truck engines are complex beasts that require specialized tools and knowledge to service. Our team offers expert heavy duty diesel engine repair for all foreign and domestic big rigs. Using the latest technology, we perform diesel engine diagnostics to pinpoint issues and get them fixed fast. We know if your truck is in the shop, you’re not making money with it. Trust our nearby diesel engine shop to get you back on the road as soon as possible in a safe and reliable vehicle.

A semi truck with three tires is parked on the side of the road.

Semi Truck Brake Repair

A healthy set of brakes is critical for any vehicle, but especially for large trucks that take longer to stop. Our team uses high quality parts to complete truck brake repair in Phoenix for tractor trailers, ensuring they’re able to stop as quickly and safely as possible.


We are well versed in all types of semi braking systems and can complete truck brake jobs on them all, including air brakes. Give our local truck brake repair shop a call to schedule service when your rig is due.

Semi Truck Maintenance in Phoenix

Big rigs cover a lot of ground day after day, which is why routine maintenance is so critical to their long-lasting performance. S&K Transmission & Diesel Repair offers everything you need at our Phoenix semi truck shop to keep yourself rolling down the road. We can conduct a semi truck oil change, semi truck battery replacement, big rig fluid services, belt and hose services, filter replacements and other services required to maintain maximum performance and efficiency. Don’t hesitate to give us a call when it’s time for preventative semi maintenance.


Big Rigs Serviced

Our nearby semi truck shop is equipped with the tools and technology to service all makes and models of trucks from leading manufacturers. You can count on us to care for your big rig nose to tail, including:

  • Peterbilt Repair
  • Freightliner Repair
  • International Truck Repair
  • Kenworth Repair
  • Navistar Repair
  • Cummins Repair
  • Detroit Diesel Repair
  • Caterpillar Repair
  • Mack Repair
  • Volvo Truck Repair
A cat freightliner volvo mack detroit diesel and peterbilt logos on a white background

Give S&K Transmission & Diesel Repair a call at (623) 244-8887 to request an appointment or a quote for the cost of semi-truck repair in Phoenix. We will gladly answer any questions you may have about our truck garage and the services that we provide. Thank you for considering our expert truck mechanics for your heavy duty commercial vehicle needs.

S&K Transmission & Diesel Repair Blog

White semi-truck driving on a winding road under a clear blue sky
By S&K Transmission & Diesel Repair August 29, 2026
Whether you're hauling freight across the country or making local deliveries, your engine is subjected to long hours of operation, heavy loads, and demanding driving conditions. Major engine repairs can be extremely expensive and lead to significant downtime, making preventive maintenance essential for keeping your truck on the road. By taking a proactive approach to engine care, you can reduce the risk of serious problems. Here are four ways to help prevent major engine issues in your semi truck. Stay Current with Oil Changes Regular oil changes are one of the most important maintenance tasks for any diesel engine. Engine oil lubricates moving parts, reduces friction, and helps control operating temperatures. Over time, oil breaks down and becomes less effective, increasing wear on critical engine components. Following the manufacturer's recommended oil change intervals helps keep your engine properly protected. Monitor the Cooling System Overheating is a leading cause of serious engine damage in heavy-duty trucks. Regularly inspect coolant levels, radiator hoses, belts, and the radiator for signs of leaks or wear. Watch the engine temperature gauge during every trip and investigate any signs of overheating immediately. Routine cooling system inspections can identify worn components before they lead to expensive engine repairs. Address Warning Signs Promptly Small engine problems often become major repairs when ignored. If you notice unusual noises, excessive exhaust smoke, reduced power, fluid leaks, warning lights, rough operation, or declining fuel-economy, schedule a professional inspection as soon as possible. Early diagnosis can often resolve minor issues before they result in catastrophic engine damage. Schedule Routine Preventive Maintenance Preventive maintenance allows experienced diesel technicians to inspect your truck for developing problems before they become costly failures. During routine service, technicians can check belts, hoses, fluids, sensors, electrical systems, and other engine components while identifying worn parts that should be replaced. Regular inspections also help ensure your truck remains reliable and ready for demanding workloads. Semi Truck Maintenance in Phoenix, AZ For expert semi truck repair and maintenance in Phoenix and the surrounding area, contact S&K Transmission & Diesel Repair at  623-244-8887  . Feel free to give us a call to male an appointment!
White semi-truck driving on a winding road under a clear blue sky
By S&K Transmission & Diesel Repair August 29, 2026
Whether you're hauling freight across the country or making local deliveries, your engine is subjected to long hours of operation, heavy loads, and demanding driving conditions. Major engine repairs can be extremely expensive and lead to significant downtime, making preventive maintenance essential for keeping your truck on the road. By taking a proactive approach to engine care, you can reduce the risk of serious problems. Here are four ways to help prevent major engine issues in your semi truck. Stay Current with Oil Changes Regular oil changes are one of the most important maintenance tasks for any diesel engine. Engine oil lubricates moving parts, reduces friction, and helps control operating temperatures. Over time, oil breaks down and becomes less effective, increasing wear on critical engine components. Following the manufacturer's recommended oil change intervals helps keep your engine properly protected. Monitor the Cooling System Overheating is a leading cause of serious engine damage in heavy-duty trucks. Regularly inspect coolant levels, radiator hoses, belts, and the radiator for signs of leaks or wear. Watch the engine temperature gauge during every trip and investigate any signs of overheating immediately. Routine cooling system inspections can identify worn components before they lead to expensive engine repairs. Address Warning Signs Promptly Small engine problems often become major repairs when ignored. If you notice unusual noises, excessive exhaust smoke, reduced power, fluid leaks, warning lights, rough operation, or declining fuel-economy, schedule a professional inspection as soon as possible. Early diagnosis can often resolve minor issues before they result in catastrophic engine damage. Schedule Routine Preventive Maintenance Preventive maintenance allows experienced diesel technicians to inspect your truck for developing problems before they become costly failures. During routine service, technicians can check belts, hoses, fluids, sensors, electrical systems, and other engine components while identifying worn parts that should be replaced. Regular inspections also help ensure your truck remains reliable and ready for demanding workloads. Semi Truck Maintenance in Phoenix, AZ For expert semi truck repair and maintenance in Phoenix and the surrounding area, contact S&K Transmission & Diesel Repair at  623-244-8887  . Feel free to give us a call to male an appointment!
By S&K Transmission & Diesel Repair July 21, 2026
A semi truck's transmission is one of the hardest-working components on the vehicle, handling heavy loads and countless miles under demanding conditions. Whether you're driving long-haul routes or making frequent local deliveries, proper transmission maintenance is essential for maximizing performance and avoiding costly repairs. Fortunately, a few good maintenance habits can go a long way toward extending the life of your transmission. Here are four tips for keeping your semi truck's transmission in great shape. Follow the Recommended Maintenance Schedule Routine maintenance is one of the best ways to prevent transmission problems. Follow the service intervals recommended by the transmission manufacturer for fluid changes, filter replacements, and inspections. Clean transmission fluid provides proper lubrication and cooling while helping maintain the hydraulic pressure needed for smooth shifting. Skipping scheduled maintenance allows contaminants to build up and accelerate internal wear. Check Transmission Fluid Regularly Transmission fluid plays a critical role in lubricating gears, reducing heat, and ensuring proper operation. Regularly inspect the fluid level and condition according to your truck manufacturer's guidelines. Low fluid levels, dirty fluid, or signs of leaks should be addressed immediately. Catching a small transmission fluid leak early can prevent overheating and major internal damage. Don't Ignore Early Warning Signs Transmission problems often provide warnings before escalating. Difficulty shifting, delayed gear engagement, grinding noises, slipping gears, unusual vibrations, or warning lights should all be inspected promptly. Addressing smaller issues early often prevents much larger and more expensive repairs later. Ignoring symptoms may result in complete transmission failure and costly downtime. Reduce Heat Buildup Excessive heat is one of the leading causes of transmission failure in heavy-duty trucks. Avoid overloading your truck beyond its rated capacity and make sure the cooling system is functioning properly. Regularly inspect the transmission cooler and related components to ensure they’re operating efficiently. Keeping transmission temperatures under control helps prevent premature wear. Semi Truck Transmission Repair in Phoenix, AZ For expert truck transmission repair in Phoenix and the surrounding area, contact S&K Transmission & Diesel Repair at  623-244-8887  . Feel free to give us a call to make an appointment for big rig repair in greater Phoenix, AZ!
By S&K Transmission & Diesel Repair June 28, 2026
Your semi truck's transmission is one of the most important and expensive components in the drivetrain. It endures tremendous stress as it transfers power from the engine to the wheels while hauling heavy loads over long distances. Transmission repairs and replacements can be costly, making preventive maintenance essential for keeping your truck on the road and minimizing downtime. At S&K Transmission & Diesel Repair, we provide expert semi truck transmission service in the greater Phoenix area. Here’s a look at four tips for preventing serious transmission problems in your semi truck. Follow Recommended Transmission Service Intervals Routine maintenance is one of the best ways to protect your transmission. Following the manufacturer's recommended service schedule for fluid changes, filter replacements, and inspections helps ensure the system remains properly lubricated and free of harmful contaminants. Regular maintenance can also help identify small issues before they become major repairs. Monitor Transmission Fluid Condition Transmission fluid plays a critical role in cooling, lubricating, and protecting internal components. Low fluid levels, contaminated fluid, or fluid that has broken down due to age can increase wear and heat buildup. Regularly checking transmission fluid levels and condition can help prevent unnecessary damage. Avoid Overloading the Truck Consistently hauling loads that exceed the truck's recommended weight capacity can place excessive strain on the transmission. Overloading forces the transmission to work harder than designed, increasing heat and accelerating component wear. Staying within manufacturer weight limits can significantly reduce stress on the transmission. Address Warning Signs Immediately Unusual noises, slipping gears, fluid leaks, and warning lights should never be ignored. These symptoms often indicate developing transmission problems that can worsen quickly if left unresolved. Prompt diagnosis and repair can prevent more extensive and expensive damage. Semi Truck Transmission Service in Phoenix, AZ For expert truck transmission service in Phoenix and the surrounding area, contact S&K Transmission & Diesel Repair at  623-244-8887  . Feel free to give us a call to schedule an appointment for big rig repair in greater Phoenix, AZ!
Purple semi truck parked in a lot, side view with chrome exhaust stacks and sleeper cab
By S&K Transmission & Diesel Repair May 29, 2026
Learn about semi truck cooling system repair. Understand common issues & maintenance needs. Contact S & K Transmission & Diesel Repair today!
Close-up of a red semi-truck driving on a highway with blurred traffic in the background
By S&K Transmission & Diesel Repair April 23, 2026
Regular oil changes are vital for your commercial truck. Prevent breakdowns & improve fuel efficiency with S & K's expert services.
Red semi-truck hauling a white trailer on a пуст desert highway at sunset
By S&K Transmission & Diesel Repair March 26, 2026
Address semi truck cooling system issues to prevent engine damage & breakdowns. Trust S&K Transmission & Diesel Repair for expert service.
Close-up shot of truck tires, focusing on the shiny rims and dark tires. Black and white.
By S&K Transmission & Diesel Repair February 28, 2026
Learn about semi truck suspension repair, signs of issues, and the repair process. Contact S & K Transmission & Diesel Repair for expert service!
Gray industrial diesel engine with belts, pipes, and filters.
By S&K Transmission & Diesel Repair January 28, 2026
Get expert insights on semi truck fuel system repair, including signs of issues & maintenance tips. Contact S & K Transmission & Diesel Repair today!
Mechanic using a forklift to move a heavy engine in a repair shop. Another man observes.
By S&K Transmission & Diesel Repair December 22, 2025
Ignoring semi truck transmission issues can lead to costly repairs and safety risks. Contact us for expert repair services today!
Purple semi-truck with silver accents parked outside. A school bus and a white van are nearby under a sunny sky.
By S&K Transmission & Diesel Repair October 29, 2025
Learn the signs of semi truck suspension issues. Contact S & K Transmission & Diesel Repair for expert solutions today!