
Part Name: 1258807 SLIP JOINT GP
Part Number: 1258807
Basic Info.
Part no. | 1258807 | Material | steel |
Type | SLIP JOINT GP | Part Type | Construction Machinery |
Compatibility | Caterpillar | Transport Package | Wooden box |
Trademark | DIRON | Origin | Luoyang City |
HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model:1258807
- Date First Listed:2025/07/11
- Manufacturer:Diron Parts
Product Description
- Part Number:1258807
- Part Type: SLIP JOINT GP
- Description: Replacement Parts 1258807 SLIP JOINT GP for Caterpillar, New

The Caterpillar 1258807 Slip Joint Group (also referenced as 125-8807 or 3904797 in some contexts) is a critical component in the drivetrain system of Caterpillar wheel loaders, specifically designed for the center drive shaft. It facilitates the transmission of power between the transmission and axles, accommodating slight misalignments and movements while maintaining torque transfer in heavy-duty applications such as construction, mining, and material handling. Below is a detailed overview of its specifications and compatibility based on available information.
Specifications
- Part Number: 1258807 (also listed as 125-8807; superseded in some cases by 3904797)
- Component Type: Slip Joint Group (Drive Shaft, Center)
- Material: High-strength steel, typically heat-treated for enhanced durability and resistance to wear and fatigue. May include high-carbon steel with surface treatments like quenching to achieve hardness (e.g., HRC 58-62).
- Weight: Approximately 59 pounds (26.55 kg)
- Dimensions: Specific dimensions (e.g., length, diameter) are not universally provided in available sources but are designed to meet OEM specifications for precise fitment in compatible models.
- Design Features:
- Allows for axial movement and angular misalignment in the drive shaft, reducing stress on drivetrain components.
- Likely incorporates high-quality seals and bearings to ensure smooth operation and longevity.
- May include grease fittings for lubrication to minimize friction and wear.
- Warranty: Aftermarket versions typically offer a 1-year warranty with an "Exact Fit Guarantee" to ensure compatibility and performance.
Compatibility
The 1258807 Slip Joint Group is compatible with the following Caterpillar wheel loader models, as part of the powertrain system (specifically the drive shaft group, part number 1259358):
- 966 Series: 966G, 966G II, 966H, 966K, 966M
- 972 Series: 972G, 972G II, 972H, 972K, 972M
- Specific Configurations:
- 966H Wheel Loader (Military, serial number FMW00001-UP, powered by C11 Engine)
- Part of the 2368965 Power Train Arrangement and 280-2854 General Arrangement for the 966H.
Functional Role
- Purpose: The slip joint group is integral to the center drive shaft, enabling smooth power transmission from the transmission to the axles while accommodating chassis flex and minor misalignments during operation.
- Applications: Used in heavy-duty tasks such as loading, stockpiling, and excavation, where reliable power transfer is critical under high torque and variable terrain conditions.
- Performance: Designed to withstand the high stresses of wheel loader operations, with robust construction to handle loads and vibrations in demanding environments.