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S&K Transmission & Diesel Repair

About Us

S&K Transmission & Diesel Repair is a trusted auto repair shop in Phoenix, AZ, serving Phoenix, North Phoenix, Deer Valley, and surrounding communities. We specialize in transmission repair, transmission rebuilding, diesel engine repair, tractor-trailer maintenance, commercial truck service, and preventative vehicle maintenance. As Allison Transmission specialists, we also manufacture and install Allison Transmissions for a wide range of applications. Our experienced technicians are committed to providing reliable diagnostics, expert repairs, and quality workmanship to keep your vehicle or fleet operating at peak performance. Contact S&K Transmission & Diesel Repair today for dependable transmission and diesel service in the Phoenix area.

Areas Served

Phoenix, AZ | Deer Valley, AZ | North Phoenix, AZ | Valley Wide | 200 Mile Radius

Our Certifications

ASE Certified

What We Offer

Our Specialties include:

Allison Transmissions
Diesel Service

Our Services include:

Transmission Shop
Allison Transmission Manufacturing and Installation
Genuine Parts
Remanufactured Transmissions
No Interest Financing and Financing Available
Battery Replacement
Rig Service
Semi Service
Diesel Service
Truck Auto Repair
Oil Changes
Service Center
Transmission and Maintenance
Auto Maintenance and Repair
Semi Service and Maintenance
Tractor Trailer Service
Diesel Service, Repair and Maintenance
Brake Repair
Transmission Overhaul
Suspension
Fleet Maintenance
Saturdays by Appointment
Oil Coolers

Our Brands include:

Allison
NAPA
OEM
Reman
Eaton Fuller
Cummins
Detroit Diesel
DuraMAX
Powerstroke
Caterpillar
MAK

Our Products include:

Oil Coolers

Testimonials

On 8/21/2026 Dark Explorations had this to say:
We took our coach in because it had transmission issues, and it ended up needing an overhaul due to ethylene glycol contamination. S&K was very thorough in their work and communication, they also took care of a couple other issues that we had, and the coach was ready to go in about three weeks time.

On 8/10/2026 Mark A. had this to say:
Chris, Dave, and crew! thank you for taking care of my RV. Rear Brakes!!! Transmission flush! Thank you for getting me in and out in time for our next trip! BUT big thanks to finding the broken leaf spring and fixing. No other RV repair would have been able to do all of of this in a week! I appreciate your expertise and service with a smile!!! Cheers! 2018 Tiffin open road. Mark A.

On 7/9/2026 Mc8541SS had this to say:
We had a truck go down in the Phoenix area, S&K was able to get us towed to their shop for cheaper than we were able to find. Truck arrived to their shop on Monday night, It’s now Thursday morning and truck is ready to roll. Unfortunately transmission needed replacing but they were able to replace with a reman, also replaced clutch and had us ready to go by Wednesday evening. Took care of our driver by getting him to and from a hotel that was nearby. Chris had constant communication with us and kept us in the loop with constant updates. Never had a shop out on the road, get us back up and going this quickly. It was all done at a fair price. Thanks for the help.

On 5/24/2026 Anthony K. had this to say:
Just left for a two month road trip and the turbo on our 2015 Ram Cummims decided to die. S and K went out of their way to get me the only turbo in Phoenix and install it the very same day. They stayed past closing for us just to get us back on the road to continue our trip. This was also a holiday weekend. It would have been easy for them to say no. The quality of their work was stellar. No issues pulling our fifth wheel the next day. I can't thank the guys there enough for going above and beyond. Highly recommend Chris and his crew. Six stars was earned! Anthony K. Very satisfied customer

On 4/28/2026 Larry T. had this to say:
2006 Tiffin Phaeton Allison MH300 wasn't shifting properly. Chris diagnosed the problem, and completed repairs at the proposed price. Along the way, Chris found the solution to an intermittent problem we have been having with our CAT C7 for two years (4 prior shops could not find). We would recommend Chris to anyone with a DP. Larry T

Contact Us

S&K Transmission & Diesel Repair
21426 N 14th Ave Phoenix, AZ 85027
Phone: (623) 869-9136
Email: Skcares602@gmail.com

Located in Deer Valley

Where To Find Us

Our Hours

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM

News

We truly appreciate your kind words and are so grateful you chose S&K Transmission & Diesel Repair to help keep your motorhome road-ready. It means everything to our team to know we’ve been able to support you and your family during those stressful repair moments. We’ll be sure to pass your special thanks along to Dave—he’ll really appreciate it!
If you’re looking for reliable, honest, and high-quality service, we’d love to help. Whether it’s your motorhome, diesel vehicle, or transmission repair, S&K Transmission & Diesel Repair in Phoenix is here to keep you moving with confidence. Stop by or give us a call today and experience the difference for yourself!
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From oil changes and battery replacements to full rig, semi, and diesel service, S&K Transmission & Diesel Repair is your complete service center in Phoenix. Whether it’s your daily driver or a heavy-duty truck, our skilled technicians handle everything with precision and care. When reliability matters most, choose the shop that keeps Phoenix moving—schedule your service today!
#DieselService #TruckAutoRepair #SemiService #RigMaintenance #OilChange #BatteryReplacement #PhoenixTrucks #ServiceCenter #AutoRepairAZ

At S&K Transmission & Diesel Repair, we specialize in Allison Transmission manufacturing and installation, ensuring your vehicle or fleet operates with power and efficiency. We also offer genuine parts, remanufactured transmissions, and flexible financing options—including no-interest plans—to keep your repairs affordable. Trust Phoenix’s go-to transmission shop for quality service that delivers lasting results.
#AllisonTransmission #TransmissionShop #PhoenixDiesel #TruckRepair #HeavyDutyRepair #AutoExperts #ReliableService #AutoCareAZ

Keep your vehicle running at peak performance with S&K Transmission & Diesel Repair in Phoenix, Arizona! From expert transmission services to complete diesel repairs, our experienced team is dedicated to keeping you safely on the road. Whether you’re driving through Phoenix, North Phoenix, or Deer Valley, we provide dependable service you can trust—every mile of the way. Contact us today and experience top-tier auto care built around your needs.
#SKTransmission #PhoenixAutoRepair #DieselExperts #TransmissionSpecialists #ArizonaAutoCare #VehicleMaintenance #PhoenixMechanic #AutoService

Transform your vehicle's performance with S&K Transmission and Diesel Repair's expert Allison Transmission services. From precise manufacturing to flawless installation, trust us to enhance your vehicle's reliability and efficiency. Contact us today to learn more about how we can optimize your transmission needs.