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Bosch Rexroth R986110074 (Series 52/53) is a direct OEM replacement for CAT 145-4878, built to deliver consistent hydraulic performance with reliable fit and compatibility.
Technical Specifications
Flow Performance
With a 71 cc displacement, the R986110074 provides predictable output per revolution to support stable actuator and drive response. Its performance is designed to remain consistent across operating speeds up to 2600 RPM, helping maintain smooth flow delivery under varying demand.
Efficiency & Durability
Rated for 3600 PSI nominal pressure and 4600 PSI peak pressure, this unit is engineered to sustain output under high-load hydraulic conditions. Continuous operation up to 2600 RPM supports strong duty-cycle capability while maintaining performance stability within the Series 52/53 design envelope.
Installation
Designed as an OEM form/fit replacement for CAT 145-4878, the R986110074 installs as a direct replacement with no modifications required. OEM-style compatibility helps reduce installation time and supports correct alignment with existing hydraulic connections.
Features and Benefits
- 71 cc displacement: Delivers consistent volume per revolution for repeatable machine response and predictable flow behavior.
- 3600 PSI nominal / 4600 PSI peak pressure capability: Supports high-load operation and short-duration pressure spikes without compromising functional performance.
- 2600 RPM maximum speed: Maintains usable hydraulic output across a wide operating speed range for responsive performance.
Operational Information
Operate within the specified limits of 3600 PSI nominal (4600 PSI peak) and up to 2600 RPM to maintain stable performance. The 48.5 lb Series 52/53 construction supports reliable operation in demanding hydraulic environments when run within rated 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, with selection primarily driven by displacement (flow) 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 |
|---|---|---|---|---|
| R986110074 | 71cc | 3600 PSI | 2600 | 52/53 |
| R986110679 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986110713 | 74cc | 3600 PSI | 2600 | 52/53 |
| R986110771 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986110676 | 100cc | 3600 PSI | 2300 | 52/53 |
Key Differences
Displacement
R986110074 is 71cc, while comparable options range from 45cc (R986110771) to 74cc (R986110713) and 100cc (R986110679/R986110676); choose higher displacement when you need more flow at a given speed, and lower displacement when you want reduced flow or tighter control at the same speed.
Pressure Rating
All listed comparison models show 3600 PSI pressure, matching the nominal pressure of R986110074; R986110074 also specifies a 4600 PSI peak rating, which should be confirmed against your system’s peak pressure requirements.
Speed
R986110074 and the 74cc/45cc options list 2600 max speed, while the 100cc options list 2300; if your machine operates near 2600, the 2600-rated models align more closely.
Quick Selection Guide
Choose: R986110074
Because: When you need a 71cc displacement with 3600 PSI nominal pressure, 4600 PSI peak capability, and up to 2600 max speed in a Series 52/53 configuration.
Choose: Higher displacement model
Because: When required flow exceeds what a 71cc unit can provide at your available operating speed (e.g., consider 100cc options such as R986110679 or R986110676, noting their 2300 max speed).
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.
For application-specific guidance, contact our technical team.
Compatibility & Applications
Direct Replacement Information
This Bosch Rexroth R986110074 replaces CAT 145-4878 in mobile and industrial hydraulic system pump applications.
- Closed-loop or open-circuit hydraulic systems requiring a 71cc axial piston variable displacement pump (see our full line of piston pumps)
- Hydraulic circuits operating at 3600 PSI nominal pressure with speeds up to 2600 RPM max
- Variable-flow pump applications for implement, steering, fan drive, or auxiliary hydraulic functions where pressure/flow demand changes
Common Applications
This Bosch Rexroth R986110074 is commonly used in:
- mobile hydraulics
- construction equipment
- agricultural machinery
- material handling equipment
- industrial power units and machinery hydraulics (browse related hydraulic pumps for similar duty cycles)
Important: Confirm the mounting interface, shaft type, rotation, and port locations match the existing CAT 145-4878 installation before replacement.
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 R986110074, 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 (additional cross references may include R986111250 depending on configuration)
- 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
Bosch Rexroth R986110074 Axial Piston Variable Pump | Replaces CAT 145-4878 | 71cc | 3600 PSI
$4,224.00
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Expected delivery Oct 13 - Oct 19
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