Description
The Allison Transmission 4500RDS remanufactured retran assembly part number 29571570 is a 6th generation Rugged Duty Series automatic transmission designed for vocational trucks, refuse vehicles, service fleets and other commercial platforms that demand robust performance. This remanufactured unit includes a TC521 torque converter with a 2.42:1 stall torque ratio, offering the right balance of performance and durability for high torque applications.
The retran assembly is remanufactured using genuine Allison components and undergoes comprehensive inspection and testing to ensure reliable operation consistent with factory specifications. Remanufactured transmissions provide an economical alternative to new units while delivering performance that meets the needs of heavy duty operations.
This 4500RDS unit is backed by a 2 year unlimited mile warranty from Reaction Force LLC, giving fleets and technicians confidence in the dependability of their replacement transmission. Installation requires programming and calibration to match the vehicle specific configuration and VIN. Reaction Force LLC offers expert support to help confirm fitment, advise on installation requirements and assist with programming details as needed. Local pickup and delivery options are available and core return coordination can be arranged with Reaction Force LLC.
The Allison 4500RDS Rugged Duty Series transmission family is widely used in vocational and commercial applications. This remanufactured retran assembly is ideal for fleets looking to replace a worn transmission or upgrade an existing unit with a proven Allison remanufactured solution.
Key features of the Allison Transmission 4500RDS remanufactured retran assembly
Part number 29571570
Includes TC531 torque converter with 2.34:1 stall ratio
6th generation Rugged Duty Series transmission
Remanufactured to meet Allison performance standards
2 year unlimited mile warranty
Requires programming and calibration to vehicle
Delivered assembled and ready for installation
Applications for 29571570
Used in Allison 4500RDS Rugged Duty Series automatic transmissions
Common in vocational vehicles including refuse trucks, utility service vehicles, construction trucks and commercial fleets
Compatible with Allison electronic controls and matching generation vehicles
Fitment depends on vehicle model and configuration. Confirm compatibility with Reaction Force LLC prior to ordering.
Torque converter information
This retran assembly includes a TC521 torque converter with a 2.42:1 stall torque ratio. The TC521 is designed to provide improved torque multiplication for heavy duty and vocational applications, helping with launch performance and load handling when paired with the 4500RDS transmission.
Warranty information
This remanufactured Allison Transmission 4500RDS retran assembly includes a 2 year unlimited mile warranty provided by Reaction Force LLC. The warranty covers the transmission performance and is designed to support heavy duty vocational use. Electronics, control modules and specific subcomponents may have individual coverage terms as noted at the time of sale.
Common questions about part 29571570
What is part number 29571570
Part number 29571570 is a remanufactured Allison Transmission 4500RDS Rugged Duty Series automatic transmission retran assembly including a TC521 torque converter with a 2.42:1 stall ratio.
What does 6th generation mean
Sixth generation refers to the internal version and design update of the 4500RDS transmission family. This affects internal components, controls and compatibility.
What torque converter is included
This unit includes a TC521 torque converter with a 2.42:1 stall torque ratio.
Does this transmission need programming
Yes, after installation the transmission must be programmed and calibrated to the specific vehicle configuration and VIN.
What vehicles use Allison 4500RDS
The Allison 4500RDS Rugged Duty Series transmission is commonly found in heavy vocational trucks such as refuse packers, service bodies, utility vehicles, construction chassis and commercial fleets.
Why buy from Reaction Force LLC
Reaction Force LLC specializes in Allison transmission solutions and remanufactured retran assemblies. We provide expert support to confirm the correct part for your vehicle, assist with installation preparation and ensure you have the information needed to successfully install and calibrate your transmission. Our team offers personalized service for fleets, mechanics and rebuild professionals.
Need help confirming fitment
If you are unsure whether Allison Transmission part 29571572 is correct for your application, contact Reaction Force LLC for assistance. Our team can help verify compatibility with your chassis, controls and PTO requirements.
Need help?
Reaction Force offers:
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Free spec matching and install prep support
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PTO system compatibility checks
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Access to calibration and programming guidance
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2-year unlimited mileage warranty on all 4500RDS builds
Call (503) 862-6322
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