ZYT PRODUCT CATALOG
158829 Bolt
Find engine service parts by category and part number. Please provide the engine serial number and photographs of the existing component so fitment and supply origin can be verified before order.



Genuine Parts
158829 Cummins Bolt
- Primary Application : It is most commonly used on Euro 3 15-liter ISX and QSX series engines, though it is also compatible with a wide range of other Cummins platforms (such as the G855, K-series, and B-series models).
- Function : Used in critical high-vibration engine assemblies requiring secure mechanical support, such as alternator brackets, turbocharger mountings, vibration dampers, and structural engine mounts.
- Head Typ e: Standard Hexagon Head (for easy torque application with standard socket/wrench sets).
- Thread Size : 1/2″-20 (0.500 in nominal diameter, 20 threads per inch, Class 2A right-hand thread).
- Thread Length : Minimum 1.50 inches.
- Material & Build : High-strength alloy steel designed to withstand dynamic loads, engine heat, and corrosion in heavy commercial vehicle applications.
The Cummins 158829 is a genuine OEM hexagon head cap bolt(screw) engineered for heavy-duty fastening in Cummins diesel and gas engine systems.
- Product reference
- 158829
Ordering & compatibility
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