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Bosch Rexroth R986110073 (Series 52/53) is a performance-focused OEM replacement for CAT 172-5637, built to deliver reliable hydraulic output with direct-fit compatibility.
Technical Specifications
Flow Performance
With a 71 cc displacement, the R986110073 provides strong volumetric output per revolution for consistent actuator response and predictable machine behavior. Stable flow delivery supports repeatable performance across operating speeds up to 2600 max RPM.
Efficiency & Durability
Rated for 3600 PSI nominal pressure and 4600 PSI peak pressure, this unit is designed to maintain output under demanding load conditions. Its 2600 max speed capability helps sustain performance in high-duty cycles without requiring operation beyond stated limits.
Installation
Designed as a direct OEM replacement for CAT 172-5637, the R986110073 matches fitment expectations for straightforward installation. OEM-form compatibility supports swap-in replacement without modifications.
Features and Benefits
- 71 cc displacement: Delivers high fluid volume per revolution for strong, consistent hydraulic response.
- 3600 PSI nominal / 4600 PSI peak pressure capability: Maintains performance under heavy loads with defined pressure headroom for transient spikes.
- 2600 max RPM operating speed: Supports high-speed operation to sustain flow output across demanding duty cycles.
Operational Information
Operate within the stated 3600 PSI nominal (4600 PSI peak) and up to 2600 max RPM to maintain consistent hydraulic performance. The 48.5 weight reflects a robust build suited to sustained service in standard hydraulic operating conditions.
Quality Assurance
Manufactured to Bosch Rexroth’s stringent quality standards with rigorous testing throughout the production process.
| Weight | 48.5 lbs |
|---|---|
| Dimensions | 15 × 15 × 15 in |
| Manufacturer | Bosch Rexroth |
| Pumps Max Pressure | 3600 PSI |
| Pumps Rated Speed | 2600 |
| Pumps Max Speed | 2600 |
| Pumps Displacement | 71cc |
| Pump Continuous Pressure | 3600 PSI |
| Pump Intermittent Pressure | 4600 PSI |
Product Selection Guide
These Series 52/53 components share a 3600 PSI nominal pressure class but vary mainly by displacement (flow capability) and maximum speed limits.
?? 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 |
|---|---|---|---|---|
| R986110073 | 71cc | 3600 PSI | 2600 | 52/53 |
| R986110051 | 74cc | 3600 PSI | 2600 | 52/53 |
| R986111457 | 128cc | 3600 PSI | N/A | 52/53 |
| R986110091 | 140cc | 3600 PSI | 2000 | 31* |
| R986110071 | 28cc | 3600 PSI | 3000 | 52/53 |
Key Differences
Displacement
R986110073 is 71cc; R986110051 is slightly higher at 74cc for a small step up in flow, while R986111457 (128cc) and R986110091 (140cc) target much higher flow needs and R986110071 (28cc) suits lower-flow requirements.
Pressure Rating
All compared models list 3600 PSI nominal pressure; R986110073 additionally specifies a 4600 PSI peak pressure, so confirm peak-pressure requirements when matching or substituting.
Speed
Maximum speed differs: R986110073 and R986110051 are listed at 2600, R986110091 at 2000, and R986110071 at 3000, so ensure the replacement meets your operating RPM range (R986111457 speed is not provided).
Quick Selection Guide
Choose: R986110073
Because: When you need a 71cc unit with 3600 PSI nominal / 4600 PSI peak capability and up to 2600 max speed in a Series 52/53 replacement.
Choose: Higher displacement model
Because: Choose R986111457 (128cc) or R986110091 (140cc) when flow requirements exceed a 71cc/74cc displacement option, while maintaining 3600 PSI nominal pressure.
Choose: Lower displacement model
Because: Choose R986110071 (28cc) when your system requires lower displacement (lower flow) and can benefit from a higher listed max speed (3000).
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm displacement, pressure (including peak where required), and maximum speed align with your system.
For application-specific guidance, contact our technical team.
Compatibility & Applications
Direct Replacement Information
This Bosch Rexroth R986110073 replaces CAT 172-5637 in closed-loop and open-circuit hydrostatic drive and implement hydraulic system applications.
- Hydrostatic drive systems requiring 71cc displacement variable flow control
- Circuits operating at 3600 PSI nominal pressure (with appropriate system relief settings)
- Mobile hydraulic systems with pump input speeds up to 2600 RPM
- Load-sensing and pressure-compensated circuits for implements, steering assist, and auxiliary hydraulics
- Closed-loop transmission circuits (with charge pump/charge circuit support as applicable)
Common Applications
This Bosch Rexroth R986110073 is commonly used in:
- construction equipment (dozers, loaders, excavators)
- mining equipment
- forestry machinery
- heavy-duty mobile equipment with hydrostatic propulsion
- industrial hydraulic power units requiring variable displacement axial piston pumps
Important: Verify mounting interface, shaft type, rotation, control configuration, and porting match the existing CAT 172-5637 installation before installation.
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 R986110073, 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, including selection of compatible hydraulic pumps
- Returns accepted within 30 days in unused, original condition
Questions? Call our specialists: (800) 823-4937 | Monday-Friday, 7 AM – 5 PM MST
Bosch Rexroth R986110073 Axial Piston Variable Pump | Replaces CAT 172-5637 | 71cc | 3600 PSI
$4,203.00
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Expected delivery Oct 13 - Oct 19
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