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Bosch Rexroth R986110126 (Series 52/53) is an OEM replacement for CAT 142-8918, engineered to restore specified hydraulic performance with direct-fit compatibility and consistent operation under rated loads.
Technical Specifications
Flow Performance
With a 45 cc displacement, the R986110126 delivers predictable volumetric output per revolution for stable actuator response and controllable system flow. Flow scales linearly with speed up to 2600 RPM, supporting repeatable performance across operating conditions. The 45 cc displacement also provides consistent metering behavior for system tuning and response.
Efficiency & Durability
Rated for 3600 PSI nominal pressure with 4600 PSI peak capability, the unit maintains performance under high-load transients while operating within defined limits. Continuous operation up to 2600 RPM supports sustained duty cycles without exceeding the specified speed envelope. These pressure and speed ratings help preserve output stability and reduce performance drift over time.
Installation
Designed as a direct OEM replacement for CAT 142-8918, the R986110126 installs as a like-for-like component with standard mounting and interface compatibility. No modifications are required when replacing the specified OEM unit.
Features and Benefits
- 45 cc displacement geometry: Provides consistent displacement per revolution to support predictable flow output and repeatable machine response.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports continuous operation at 3600 PSI and manages short-duration pressure spikes up to 4600 PSI within rated limits.
- 2600 RPM maximum speed capability: Enables high-speed operation up to 2600 RPM for maintaining required flow output without exceeding the specified speed limit.
Operational Information
Operate within the specified limits of 3600 PSI nominal, 4600 PSI peak, and up to 2600 RPM to maintain consistent hydraulic output and reliability. The 40 lb component mass supports stable installation and handling characteristics consistent with OEM replacement requirements.
Quality Assurance
Manufactured to Bosch Rexroth’s stringent quality standards with rigorous testing throughout the production process.
| Weight | 40.0 lbs |
|---|---|
| Dimensions | 10 × 10 × 10 in |
| Manufacturer | Bosch Rexroth |
| Pumps Max Pressure | 3600 PSI |
| Pumps Rated Speed | 2600 |
| Pumps Max Speed | 2600 |
| Pumps Displacement | 45cc |
| Pump Continuous Pressure | 3600 PSI |
| Pump Intermittent Pressure | 4600 PSI |
Product Selection Guide
These Series 52/53 components share a 3600 PSI nominal pressure rating, so selection is primarily driven by required displacement (flow) and allowable operating speed versus your system needs.
?? Important: The specifications shown are for reference and comparison purposes. Always verify specifications with the official manufacturer documentation or contact our technical team before ordering to ensure compatibility with your application.
| Part Number | Displacement | Pressure | Max Speed | Series |
|---|---|---|---|---|
| R986110126 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986111452 | 140cc | 3600 PSI | 2000 | 31* |
| R986111358 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986111204 | 140cc | 3600 PSI | 2000 | 31* |
| R986111249 | 110cc | 3600 PSI | 2200 | 31* |
Key Differences
Displacement
R986110126 is 45cc for lower flow needs, while the compared options are higher displacement (100cc, 110cc, and 140cc) for higher flow per revolution; choose higher displacement when you need more output flow without increasing speed.
Pressure Rating
All listed comparison models show 3600 PSI pressure, matching the nominal rating of R986110126; note that R986110126 also lists a 4600 PSI peak rating, so verify peak/maximum pressure requirements when cross-referencing alternatives.
Speed
R986110126 is rated up to 2600 max speed, while the compared models list 2000–2300; if your application requires higher operating speed, confirm the selected part’s speed limit meets your duty cycle.
Quick Selection Guide
Choose: R986110126
Because: When you need a 45cc displacement unit with 3600 PSI nominal pressure, 4600 PSI peak pressure capability, and up to 2600 max speed in a Series 52/53 replacement.
Choose: Higher displacement model
Because: When flow requirements exceed what a 45cc unit can provide, consider 100cc (R986111358), 110cc (R986111249), or 140cc (R986111452 / R986111204) depending on the flow increase needed.
Choose: Lower pressure model
Because: When system operates at lower pressures for cost savings.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation. If you’re still narrowing down options, browse our piston pumps selection to compare similar configurations.
For application-specific guidance, contact our technical team.
Purchasing Information
Availability & Delivery
Most Bosch Rexroth replacement parts ship within 1-3 business days. Custom or special-order items may require additional lead time.
For current availability on R986110126, call (800) 823-4937.
Warranty & Protection
- Standard Warranty: 18 months from date of shipment or 12 months from date placed in service, whichever occurs first
- Coverage: Defects in material and workmanship under normal operating conditions
- Remedy: Repair, replacement, or credit at seller’s option
- Conditions: Product must be used per manufacturer specifications and documentation
Ordering Options
Contact our sales team for pricing and availability. Volume discounts may be available for larger orders.
We accept purchase orders from established accounts. New customers may require prepayment or credit approval.
Support & Documentation
- Technical specifications and datasheets available upon request
- Cross-reference assistance for OEM part identification
- Application engineering support for system integration
- Returns accepted within 30 days in unused, original condition
Questions? Call our specialists: (800) 823-4937 | Monday-Friday, 7 AM – 5 PM MST
Compatibility & Applications
Direct Replacement Information
This Bosch Rexroth R986110126 axial piston variable pump replaces CAT 142-8918 in high-pressure mobile and industrial hydraulic system applications. For similar components in this family, see R986111250.
- Closed-loop or open-loop hydraulic circuits requiring 45cc variable displacement flow control
- Systems operating at 3600 PSI nominal pressure for work functions and auxiliary hydraulics
- Hydraulic power units and machine circuits running up to 2600 max pump speed where variable output is needed
Common Applications
This Bosch Rexroth R986110126 is commonly used in:
- construction and earthmoving equipment hydraulic systems
- industrial hydraulic power units (HPUs) and other hydraulic pumps applications
- material handling and lifting equipment
- production machinery requiring variable-flow hydraulic actuation; related options may include R986111344 depending on mounting and control requirements
Important: Verify mounting interface, shaft type, rotation, and port configuration match the existing CAT 142-8918 installation and system plumbing before ordering. If you’re evaluating alternates for different equipment platforms, R986111484 may be a relevant cross-reference to review.
Bosch Rexroth R986110126 Axial Piston Variable Pump | Replaces CAT 142-8918 | 45cc | 3600 PSI
$2,943.00
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Expected delivery Oct 14 - Oct 20
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