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Specifications

The 4040 Input S Seal for TAS65 THP steering systems is engineered for heavy-duty reliability and optimal sealing performance. Manufactured with high-grade elastomers, it withstands extreme temperatures, hydraulic pressure, and constant movement within commercial truck steering assemblies. This seal prevents fluid leaks, protects internal components from contaminants, and maintains the correct lubrication environment essential for steering gear longevity. Whether replacing a worn seal or performing preventative maintenance, the 4040 ensures precise fit, strong durability, and consistent performance across fleet and vocational applications. Wofford Truck Parts provides dependable parts designed to keep trucks running safely and efficiently.
Weight
0.1

Compatibility

Freightliner Cascadia: 2008–2023
Freightliner Columbia / Century: 2004–2016
International ProStar: 2007–2020
International 4000/7000 Series: 2005–2019
Kenworth T680 / T880: 2013–2023
Mack Anthem / Pinnacle: 2010–2023
Peterbilt 579 / 587: 2011–2023
Volvo VNL / VNR: 2006–2023

Alternative Part Numbers

Bendix 4040
Daimler 4040
Detroit Diesel 4040
Eaton 4040
Freightliner 4040
International 4040
Kenworth 4040
Mack 4040
Meritor 4040
Navistar 4040
PACCAR 4040
Peterbilt 4040
TRW TAS65 Seal
Volvo 4040

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