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Bosch Rexroth R986110124 (Series 52/53) is a precision OEM replacement for CAT 168-7873, built to maintain original hydraulic performance with reliable fit and consistent output.
Technical Specifications
Flow Performance
With a 45 cc displacement, the R986110124 delivers predictable flow proportional to input speed for stable actuator response and controllable system behavior. It supports operation up to 2600 max speed, enabling responsive flow delivery across a wide operating range. The displacement rating supports repeatable metering characteristics under load.
Efficiency & Durability
Rated for 3600 PSI nominal pressure and 4600 PSI peak pressure, the unit is designed to sustain high-load duty cycles while maintaining hydraulic performance. The 2600 max speed capability supports consistent operation in demanding circuits where both pressure and rotational speed vary. These limits help preserve output stability and component life under specified operating conditions.
Installation
Designed as a direct replacement for CAT 168-7873, the R986110124 matches OEM interface requirements for straightforward installation. It is intended to mount and connect without modifications when replacing the original component.
Features and Benefits
- 45 cc displacement: Provides consistent, repeatable flow characteristics tied to input speed for predictable system response.
- 3600 PSI nominal / 4600 PSI peak pressure capability: Supports high-pressure operation and transient load spikes within rated limits to maintain circuit performance.
- 2600 max speed rating: Enables stable flow delivery at higher operating speeds for responsive hydraulic control.
Operational Information
Operate within the stated 3600 PSI nominal and 4600 PSI peak pressure limits and up to 2600 max speed to maintain expected performance. The 40 weight and Series 52/53 build profile support stable operation in standard hydraulic environments when system conditions remain within rated limits.
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 |
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 R986110124, 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
The Bosch Rexroth R986110124 axial piston variable pump replaces CAT 168-7873 in high-pressure hydraulic power unit and mobile equipment pump applications.
- Hydraulic systems requiring 45cc displacement variable flow control (see related piston pumps for similar architectures)
- Circuits operating at 3600 PSI nominal pressure (with appropriate relief and filtration)
- Closed-loop or open-loop axial piston variable pump circuits for work functions, propulsion assist, and auxiliary hydraulics
- Installations requiring up to 2600 RPM maximum pump speed
Common Applications
This Bosch Rexroth R986110124 is commonly used in:
- construction and earthmoving equipment hydraulics
- industrial hydraulic power units (HPUs)
- material handling equipment
- marine and offshore auxiliary hydraulic systems
Important: Confirm mounting interface, shaft configuration, rotation, and porting match the existing CAT 168-7873 installation before installation.
Product Selection Guide
These Series 52/53 components share a 3600 PSI nominal pressure rating but differ primarily in displacement and maximum speed, which drive flow capability and operating range.
?? 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 |
|---|---|---|---|---|
| R986110124 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986111124 | 140cc | 3600 PSI | 2000 | 31* |
| R986111618 | 85cc | 3600 PSI | 2500 | 52/53 |
| R986110075 | 28cc | 3600 PSI | 3000 | 52/53 |
| R986110051 | 74cc | 3600 PSI | 2600 | 52/53 |
Key Differences
Displacement
R986110124 is 45cc, positioned between smaller 28cc (R986110075) and larger 74cc (R986110051), 85cc (R986111618), and 140cc (R986111124) options; choose higher displacement when you need more flow at the same speed, and lower displacement when you want finer control or lower flow demand.
Pressure Rating
All listed comparison models show 3600 PSI nominal pressure; R986110124 additionally lists 4600 PSI peak pressure, so confirm your system’s peak/transient requirements against the specific part’s published peak rating.
Speed
Maximum speed varies across the group (2000 to 3000); R986110124 is rated to 2600, so select a higher-speed option if your duty cycle requires operating above 2600, or a lower-speed model if your system speed is inherently limited.
Quick Selection Guide
Choose: R986110124
Because: When you need a 45cc displacement with 3600 PSI nominal pressure, 4600 PSI peak pressure, and up to 2600 max speed in a Series 52/53 replacement.
Choose: Higher displacement model
Because: When required displacement exceeds 45cc (e.g., 74cc R986110051, 85cc R986111618, or 140cc R986111124) to meet higher flow requirements at comparable nominal pressure.
Choose: Lower pressure model
Because: Not applicable here—each listed comparison part is specified at 3600 PSI nominal pressure, so select based on displacement and max speed instead.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation. If you’re comparing options across your fleet, browse our full hydraulic pumps selection.
For application-specific guidance, contact our technical team.
Bosch Rexroth R986110124 Axial Piston Variable Pump | Replaces CAT 168-7873 | 45cc | 3600 PSI
$3,049.00
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No sales tax
Expected delivery Oct 14 - Oct 20
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Pump showed up and we installed it but its been leaking around the shaft seal since day one. Reached out to customer service and still waiting to hear back. Maybe a defective unit, I don't know, but for what this thing costs I expected better out of the box.
Does the job. Bolted right in place of the original and pressure came up where it needed to be. Nothing fancy to say, just works like it should.
Pump fit right up on our CAT and has been running strong for about three weeks now. Only knock is shipping took a day longer than the site suggested, but once it showed up everything was exactly right. Would order again.
Dropped this into one of our machines and it came right up to pressure without any fuss — honestly the easiest swap we've done in a while. Build quality feels solid, same as OEM. Called the support line before ordering just to confirm fitment and the guy I talked to knew his stuff. No complaints at all.
fit perfect, runs quiet