Belt Tensioner Assembly for Cummins ISX QSX (2018–2021)
Belt Tensioner Assembly for Cummins ISX QSX (2018–2021)
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Product Description: Belt Tensioner Assembly for Cummins ISX QSX (2018–2021)
Fits Models:
Cummins ISX, Cummins QSX
Model Years:
2018, 2019, 2020, 2021
Submodels:
Heavy-Duty Trucks, Commercial Vehicles
Engine Options:
Cummins ISX 15L, Cummins QSX 15L
Description:
The Belt Tensioner Assembly for Cummins ISX QSX is a high-quality, OEM-style replacement component designed to ensure optimal performance of your engine's serpentine belt system. Manufactured with precision, this direct fit assembly guarantees ease of installation and dependable operation under demanding conditions.
Features:
- OEM specifications for superior performance
- Direct fit design for easy installation
- Robust construction for increased durability
- Ensures proper belt tension to extend belt life
- Ideal for heavy-duty applications
Enhance the reliability of your Cummins engine with this essential Belt Tensioner Assembly.

Delivered in 5–15 business days