Part Number: 1131150
Type: Rear Drive Shaft / Main Drive Shaft
Location: Between the transmission and the rear axle
Brand: NEXGEN (Aftermarket)
Product Description
The rear drive shaft 1131150 is a key drivetrain component in CAT backhoe loaders. It connects the transmission output to the rear drive axle, which in most operating modes transfers the majority of the machine’s driving force.
To perform reliably, the shaft must be extremely strong and precisely balanced. Choosing a NEXGEN product guarantees high-quality aftermarket manufacturing, durability, and accurate fitment.
Part Function and Failure Diagnostics
The rear drive shaft is responsible for transmitting engine power from the gearbox to the rear axle. Due to high torque loads, any wear or imbalance can quickly lead to serious drivetrain damage.
Common symptoms of a worn or damaged rear drive shaft include:
Applications
⚠️ Safety Warning
Failure of the rear drive shaft (for example, a broken universal joint) results in an immediate loss of the main drive of the machine. This can lead to loss of control, especially on slopes.
A rotating, broken drive shaft can cause severe damage to the chassis, hydraulic hoses, or fuel tank and poses a serious safety risk to the operator.
Application in machinery
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Brand
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Machine Type
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Models
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Caterpillar (CAT) |
Backhoe Loaders |
416C, 416D, 420D, 424D, 426C, 428C, 428D, 430D, 432D, 436C, 438C, 438D, 442D |
The list above is for reference. It is crucial to verify the part number 1131150 in your machine's parts catalogue.
Data sheet
Specific References
Manufacturer
Responsible person






The rear drive shaft 1131150 is a key drivetrain component in CAT backhoe loaders. It connects the transmission output to the rear drive axle, which in most operating modes transfers the majority of the machine’s driving force.
To perform reliably, the shaft must be extremely strong and precisely balanced. Choosing a NEXGEN product guarantees high-quality aftermarket manufacturing, durability, and accurate fitment.

















