G&W Diesel is the premier Cummins and Detroit Diesel engine and Allison transmission service center in the mid-south.
G&W Diesel has been the premier service provider for the markets we serve since 1958. That’s over 60 years that our customers have chosen to partner with us. No matter what market segment or industry your needs come from – Diesel Engines, Marine, Allison Transmissions, RV & Motor Home, Agricultural, Fire & Emergency, Powertrain & Generators, G&W has the experience and factory trained service technicians to get you back on the road.
We are a factory authorized Cummins and Allison sales and service center, operating in the Memphis, Nashville, and Knoxville, TN markets, as well as Conway, AR. We are pleased to help you with your power and drivetrain problems.
We also keep over two million dollars of parts in stock, so we can get you back on the road even faster.
DIESEL ENGINES
We specialize in the maintenance and repair of diesel engines. Our expertise includes diagnosing and repairing issues, such as fuel injection problems, turbocharger malfunctions, and combustion system failures. Our main goal is to ensure the optimal performance and efficiency, ensuring that vehicles and equipment operates safely and reliably.
- Engine Diagnostics and Troubleshooting: Identify and resolve issues, including performance problems, emissions control failures, and mechanical breakdowns.
- Preventive Maintenance
- Engine Repairs and Rebuilds: Repairing or rebuilding diesel engines to meet original equipment manufacturer (OEM) specifications or custom requirements.
- Fuel System Management: Maintaining and optimizing fuel systems, including fuel injection systems, fuel pumps, filters, and storage tanks.
- Cooling and Lubrication Systems: Ensuring proper functioning of cooling and lubrication systems, including radiators, water pumps, oil coolers, and lubrication oil systems.
- Exhaust Emissions Control: Working with diesel particulate filters (DPFs), selective catalytic reduction (SCR) systems, and other emission control technologies to maintain compliance with environmental regulations.
Our Services Include:
- Agricultural Construction
- Fire & Emergency
- Industrial
- Logging & Timber
- Marine Service
- Road Side Assistance
- RV Bus
- Scheduled Maintenance
Factory Authorized Service Center For The Following:
- Cummins
- Detroit Diesel
- John Deere Industrial / Marine
- Yanmar
- Deutz
- Perkins
REGIONAL SERVICE MANAGERS
Danny Hall
Memphis, TN
Tel: (800) 458-8748
Fax: (901) 946-4754
David White
Conway, AR
Tel: (800) 233-5053
Fax: (800) 327-3208
David Rains
Nashville, TN
Tel: (833) 284-3711
Fax: (615) 526-9605
David Clark
Knoxville, TN
Tel: (865) 269-3841
ALLISON TRANSMISSIONS
G&W Diesel is an Allison Factory Authorized Sales & Service Center.
Part of Allison Transmission’s commitment to quality is ensuring that their transmissions provide the best performance and have the longest life cycle. By partnering with G&W’s Authorized Service Center you can be sure to receive the best possible service for your Allison transmission. Our technicians are extensively trained in the entire range of Allison products, allowing them to quickly diagnose and fix the issues you may have with your transmission.
We keep only Allison Genuine Parts in stock, so you won’t have to wait while parts are ordered. Allison Genuine Parts offer the precise fit and are made from only the highest quality materials that meet Allison specifications. Watch out for unauthorized dealers and rebuilders who say that they are using Allison Genuine Parts. Always ask to make sure they’re using ONLY Allison Genuine Parts on your Allison transmission.
Service
When you combine the finest products on the market with a higher level of experience and expertise, you get the results you’re looking for. G&W has been an Allison authorized full service dealer for over 40 years. We service Allison Automatic Transmissions for virtually any industrial need. From Fire Apparatus, RV Motor Homes, School Buses to Agriculture Environments. Our highly trained technicians have the highest level of product knowledge, meaning you get top-tier service for your Allison. G&W provides top-notch transmission services including repairs, overhauls, rebuilds and standard maintenance all designed to increase the uptime and life of your transmission.
- Troubleshooting, Maintenance & Complete Overhauls
- Recalibration & Reprogramming of ECU / TCM’s
- Genuine Allison Parts, Fluids, and Filters
- Allison Diagnostic DOC™ Software
- Authorized Warranty Center
- Preventive Maintenance
- Fully Equipped Mobile Service Trucks
- Allison ReTran®
The Allison ReTran® automatic transmissions are meticulously remanufactured to precise factory tolerances using only genuine Allison parts. Factory-trained technicians using Allison-approved technologies and manufacturing processes literally remake a genuine Allison Transmission from the ground up. Genuine Allison ReTran® transmissions come with a two-year, unlimited mile worldwide warranty.
Allison Service Managers
Eugene Hunt
Memphis, TN
Tel: (800) 458-8748
Fax: (901) 946-4754
David White
Conway, AR
Tel: (800) 233-5053
Fax: (800) 327-3208
Mon-Fri 7:30am – 4:30pm | 892 Kansas St., Memphis, TN 38106
Local: (901) 948-1625 | Toll Free: (800) 233-5053