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Allison Transmission is a global leader in the design and manufacture of fully automatic transmissions and hybrid propulsion systems for commercial and specialty vehicles. Known for unmatched durability, performance, and ease of operation, Allison transmissions are trusted across a wide range of industries—from trucking and public transit to defense and construction. With over a century of innovation, Allison continues to set the standard for dependable powertrain technology that keeps fleets moving efficiently and safely.
Product Offerings
Allison provides a broad range of OEM parts and transmission solutions, including:
- Fully Automatic Transmissions (1000–9000 Series)
- Electric & Hybrid Propulsion Systems (eGen Power®)
- Transmission Control Modules (TCMs)
- Torque Converters
- Shift Selectors & Sensors
- Coolers, Filters & Gaskets
- Solenoids & Valve Bodies
- Genuine Allison Replacement Parts & Service Kits
Key Facts
- Founded: 1915
- Headquarters: Indianapolis, Indiana
- Industries Served: Commercial trucking, public transit, construction, defense, emergency response, and energy
- Known For: Industry-leading fully automatic transmissions and advanced propulsion systems
- OEM Partnerships: Trusted by major truck manufacturers like Freightliner, International, and Peterbilt
- Innovation: Pioneering electrified powertrains and hybrid systems for next-generation vehicles
- Global Reach: Products used in over 100 countries with a vast service and distribution network
Manufacturers
AG-Chem®
Allison Transmission®
Apsco®
Autocar®
AxleTech®
Badger®
Bezares®
Blount®
BorgWarner®
Capacity®
Chelsea®
Clark®
Clark-Hurth®
Comaxle®
Cotta®
Cushman®
Custom Hoists, Inc.®
Dana®
Detroit®
Dresser®
Eaton®
Euclid®
Euroricambi®
Fabco®
Freightliner®
Fuller®
Funk®
Gates®
Gemmer®
Genie®
GMC®
Gradall®
Grove®
IHC®
International®
Kalmar®
Kenworth®
Kessler+Co®
Kirkstall®
Koehring®
Komatsu®
LimaLink Belt®
Lull®
Lundy®
Mack®
Marmon-Herrington®
Meritor®
Muncie®
Navistar®
New Process®
New Venture®
Noster®
OMSI®
Oshkosh®
Ottawa®
P&H®
PAI®
Permco®
Peterbilt®
Pettibone®
Rexroth®
RH Shepard®
Rockwell®
Ross®
Saginaw®
Sige®
Spicer®
Sterling®
Taylor®
Terex®
Tico®
Tracmobile®
Tremec®
TRW®
TTC®
Twin Disc®
Tyrone®
Vickers®
Volvo®
Western Star®
ZF®
General Truck Parts is an Allison Transmission® Authorized Dealer, offering remanufactured Allison ReTran genuine parts and specs. We have Allison factory trained and certified technicians, and an Allison certified customer support staff which is experienced and knowledgeable. All 1K through 4K transmissions are fully remanufactured with 100% genuine Allison components. All 1K and 2K torque converters are replaced with NEW genuine. All valve bodies are fully remanufactured and tested on our state-of-the-art valve body test stand. All friction plates, solenoids, sensors and bearings are automatically replaced. All transmissions are fully tested on our dynamometer upon completion. AT, HT, and MT Legacy series transmissions are also available. Hundreds of remanufactured transmissions in stock and ready for immediate exchange which comes with a 3 year parts and labor warranty.
Browse all Allison parts and units
Shop for Allison Products
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Allison 2500 Transmission
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Allison 3000 Transmission
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Allison 4560PR Transmission
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Allison AT542 Transmission
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Allison AT542N Transmission
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Allison AT542NPTO Transmission
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Allison AT542PTO Transmission
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Allison AT545 Transmission
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Allison AT545N Transmission
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Allison AT545NPTO Transmission
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Allison AT545PTO Transmission
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Allison B210 Transmission
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Allison B220 Transmission
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Allison B300 Transmission
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Allison B300R Transmission
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Allison B400 Transmission
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Allison B400R Transmission
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Allison B500 Transmission
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Allison B500R Transmission
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Allison HD4060 Transmission
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Allison HD4060PR Transmission
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Allison HD4060PTO Transmission
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Allison HD4060PTOR Transmission
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Allison HD4560 Transmission
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Allison HD4560PTO Transmission
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Allison HT740 Transmission
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Allison HT750 Transmission
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Allison HT754 Transmission
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Allison HT754CR Transmission
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Allison HT754CRDPTO Transmission
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