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Bosch Rexroth R986110039 (Series 53) is a dependable OEM replacement for CAT 158-0522, built to maintain consistent 63 cc displacement performance with OEM-fit compatibility in demanding hydraulic duty.
Technical Specifications
Flow Performance
With a 63 cc displacement, the R986110039 delivers predictable flow output per revolution to support stable actuator and circuit response. Its Series 53 design targets consistent hydraulic performance under load, helping reduce variability in system behavior over time.
Efficiency & Durability
Rated for 3600 PSI nominal pressure with 4600 PSI peak capability, this unit is engineered to sustain performance through pressure transients and heavy working cycles. A maximum speed of 2600 supports reliable operation across a broad operating range while maintaining consistent output characteristics.
Installation
Designed as a direct OEM replacement for CAT 158-0522, the R986110039 installs with standard mounting expectations for the original component. OEM-fit compatibility supports replacement without modifications to the hydraulic system layout.
Features and Benefits
- 63 cc displacement: Provides consistent flow per revolution for predictable machine response and repeatable cycle performance.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Maintains reliable operation through high-load conditions and short-duration pressure spikes without compromising functional stability.
- 2600 maximum speed capability: Supports dependable performance across operating speeds, helping maintain consistent output in variable-duty cycles.
Operational Information
Operate within the stated limits of 3600 PSI nominal, 4600 PSI peak, and up to 2600 speed to maintain reliable performance. The 48.5 weight and Series 53 build are suited for sustained hydraulic service where consistent output and durability are required.
Quality Assurance
Manufactured to Bosch Rexroth’s stringent quality standards with rigorous testing throughout the production process.
| Weight | 48.5 lbs |
|---|---|
| Manufacturer | Bosch Rexroth |
| Pumps Max Pressure | 3600 PSI |
| Pumps Rated Speed | 2600 |
| Pumps Max Speed | 2600 |
| Pumps Displacement | 63cc |
| Pump Continuous Pressure | 3600 PSI |
| Pump Intermittent Pressure | 4600 PSI |
Product Selection Guide
These Series 53 components share a 3600 PSI nominal pressure rating, so selection is primarily driven by displacement (flow per revolution) and allowable speed for your duty cycle.
?? 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 |
|---|---|---|---|---|
| R986110039 | 63cc | 3600 PSI | 2600 | 53 |
| R986111204 | 140cc | 3600 PSI | 2000 | 31* |
| R986110100 | 71cc | 3600 PSI | 2600 | 52/53 |
| R986110069 | 60cc | 3600 PSI | 2600 | 52 |
| R986110080 | 28cc | 3600 PSI | 3000 | 52/53 |
Key Differences
Displacement
R986110039 is 63cc, with nearby options at 60cc (R986110069) and 71cc (R986110100) for fine-tuning flow, while 28cc (R986110080) reduces flow and 140cc (R986111204) substantially increases flow where higher output per revolution is required.
Pressure Rating
All compared models list 3600 PSI pressure, matching the nominal pressure of R986110039; confirm your system also accounts for the 4600 PSI peak requirement of the current unit.
Speed
R986110039, R986110100, and R986110069 are rated at 2600 max speed, while R986110080 is higher at 3000 and R986111204 is lower at 2000, which can affect allowable operating RPM and drive selection.
Quick Selection Guide
Choose: R986110039
Because: When you need a 63cc displacement with 3600 PSI nominal pressure and up to 2600 max speed to match the existing performance envelope.
Choose: Higher displacement model
Because: When flow requirements exceed a 63cc unit; consider R986111204 (140cc) for a major increase or R986110100 (71cc) for a smaller step up while maintaining the same 3600 PSI pressure rating.
Choose: Lower pressure model
Because: Not applicable within this comparison set, since all listed alternatives are rated at 3600 PSI; select based on displacement and speed instead.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm the replacement meets your required nominal and peak pressure conditions.
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 R986110039, 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 Rexroth R986110039 replaces CAT 158-0522 in high-pressure hydraulic power unit and mobile equipment applications.
- Hydraulic systems requiring 63cc/rev displacement variable-flow control
- Circuits operating at 3600 PSI nominal pressure (up to system relief settings) with stable pressure/flow regulation
- Closed-loop and open-loop axial piston variable pump circuits for hydrostatic drive, implement hydraulics, and auxiliary power functions—see related piston pumps for comparable technologies and configurations
- Systems with prime mover speeds up to 2600 RPM where variable displacement is used to match demand
Common Applications
This Bosch Rexroth R986110039 is commonly used in:
- construction and earthmoving equipment hydraulics
- mining and quarry equipment hydraulic systems
- industrial hydraulic power units (HPUs)
- material handling equipment and lift systems
- marine and offshore hydraulic power and deck machinery
Important: Verify mounting interface, shaft configuration, control type, and porting match the existing CAT 158-0522 installation and system plumbing. If you are evaluating other hydraulic pumps for the same machine family, also confirm case drain requirements and control compatibility.
Bosch Rexroth R986110039 Axial Piston Variable Pump | Replaces CAT 158-0522 | 63cc | 3600 PSI
$3,866.00
In stock
No sales tax
Expected delivery Jul 19 - Jul 23
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