After Treatment Gasket
The PAI 131972 After Treatment Gasket delivers a precise, leak-resistant seal for Cummins ISX and QSX aftertreatment systems. Designed to replace OEM references 2871453, 3684079, 21371338 (Mack), and 21371338 (Volvo), this gasket ensures a proper fit and durable performance under high-heat conditions. Manufactured by PAI Industries under ISO 9001 standards and backed by a 2-year unlimited mileage warranty, it's a reliable choice for emission-critical applications. Available now at Wofford Truck Parts.
$35.09
Specifications
The PAI 131972 After Treatment Gasket is meticulously engineered to maintain a secure seal in the aftertreatment systems of Cummins ISX and QSX engines. It is a direct replacement for Cummins OEM part numbers 2871453 and 3684079, as well as Mack and Volvo 21371338. Manufactured in the U.S. by PAI Industries with rigorous ISO 9001 quality control, this gasket is built to withstand extreme thermal stress and vibration common in heavy-duty truck applications. It’s also backed by a 2-year unlimited mileage warranty, offering peace of mind and long-term reliability—essential for fleets and repair professionals alike.
Weight
0.4
Compatibility
Freightliner Cascadia (2008–2020)
Kenworth T680 / T880 (2013–2020 / 2014–2020)
Peterbilt 579 / 389 (2013–2020 / up to 2020)
Volvo VNL Series (2008–2019)
International ProStar (2008–2016)
Western Star 4900 / 5700 (2008–2018)
Alternative Part Numbers
Cummins 2871453
Cummins 3684079
Mack 21371338
Volvo 21371338
Mack 21371338
Volvo 21371338
Cummins 2871453
Cummins 3684079
PAI 131972
Cummins 3684079
Mack 21371338
Volvo 21371338
Mack 21371338
Volvo 21371338
Cummins 2871453
Cummins 3684079
PAI 131972
