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Bosch Rexroth R986110680 (Series 52/53) is a direct OEM replacement for CAT 444-8538, delivering compatible fit and consistent hydraulic performance in demanding duty cycles.
Technical Specifications
Flow Performance
With a 100 cc displacement, the R986110680 provides predictable volumetric output per revolution to support stable actuator and circuit response. Performance remains consistent across operating speeds up to 2300 RPM, supporting repeatable flow delivery for machine functions. The Series 52/53 design is built for reliable flow characteristics under load.
Efficiency & Durability
Rated for 3600 PSI nominal pressure with 4600 PSI peak capability, the unit is designed to maintain performance under high working loads and transient pressure events. Operation up to 2300 RPM supports high-demand cycles while preserving consistent output behavior. The 75 lb construction aligns with robust hydraulic component requirements for sustained service.
Installation
Designed as an OEM replacement for CAT 444-8538, the R986110680 matches the intended installation interface for straightforward swap-in replacement. It is intended to install without modifications when replacing the specified OEM component.
Features and Benefits
- 100 cc displacement: Delivers consistent volume per revolution for stable, repeatable hydraulic function response.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports high working pressures and short-duration peak events without sacrificing operational stability.
- 2300 RPM maximum speed capability: Maintains hydraulic output performance at higher operating speeds for demanding machine cycles.
Operational Information
Operate within the specified nominal and peak pressure limits and up to 2300 RPM to maintain expected performance. The Series 52/53 build is intended for consistent reliability under typical hydraulic operating conditions when system settings remain within rated limits.
Quality Assurance
Manufactured to Bosch Rexroth’s stringent quality standards with rigorous testing throughout the production process.
| Weight | 75.0 lbs |
|---|---|
| Dimensions | 20 × 20 × 15 in |
| Manufacturer | Bosch Rexroth |
| Pumps Max Pressure | 3600 PSI |
| Pumps Rated Speed | 2300 |
| Pumps Max Speed | 2300 |
| Pumps Displacement | 100cc |
| 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 R986110680, 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
Product Selection Guide
These Series 52/53 components share the same nominal pressure rating, so selection mainly comes down to displacement (flow per revolution) and allowable speed for your duty cycle. If you are comparing options across our hydraulic pumps lineup, match displacement and control type first, then verify mounting and shaft details.
?? 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 |
|---|---|---|---|---|
| R986110680 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986110055 | 74cc | 3600 PSI | 2600 | 52/53 |
| R986111171 | 60cc | 3600 PSI | 2600 | 52 |
| R986111528 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986111328 | 45cc | 3600 PSI | 2600 | 52/53 |
Key Differences
Displacement
R986110680 and R986111528 are 100cc options for higher flow per revolution, while R986110055 (74cc), R986111171 (60cc), and R986111328 (45cc) reduce flow and can be better suited when your system requires less output per rev.
Pressure Rating
All listed comparison models show 3600 PSI nominal pressure; R986110680 additionally specifies a 4600 PSI peak pressure, which may matter if your system experiences pressure spikes.
Speed
R986110680 and R986111528 list 2300 max speed, while the lower-displacement alternatives list 2600, which can be relevant if your prime mover operates at higher RPM and you need a component rated for that speed.
Quick Selection Guide
Choose: R986110680
Because: When you need a 100cc displacement with 3600 PSI nominal pressure, 4600 PSI peak pressure capability, and a 2300 max speed rating in a Series 52/53 replacement.
Choose: R986111528
Because: When you need the same 100cc displacement, 3600 PSI nominal pressure, and 2300 max speed as R986110680 but are matching to the R986111528 part number specifically.
Choose: R986110055 / R986111171 / R986111328
Because: When your required displacement is lower than 100cc (74cc, 60cc, or 45cc) and/or you need a 2600 max speed rating while keeping the same 3600 PSI nominal pressure.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm displacement, pressure ratings (nominal/peak), and max speed align with your system requirements. For other similar piston pumps, use the same fitment checks to avoid downtime and rework.
For application-specific guidance, contact our technical team.
Compatibility & Applications
Direct Replacement Information
This Rexroth R986110680 replaces CAT 444-8538 in high-pressure closed-loop and open-circuit hydraulic system applications. If you are evaluating alternate Rexroth replacements for similar platforms, you may also want to compare against R986111250 where applicable.
- Hydraulic systems requiring 100cc displacement variable flow control
- Circuits operating at 3600 PSI nominal pressure
- Closed-loop hydrostatic drive circuits (propel/travel) on mobile equipment
- Open-circuit implement/auxiliary circuits requiring variable displacement pump output
- Systems with up to 2300 RPM maximum pump speed
Common Applications
This Bosch Rexroth R986110680 is commonly used in:
- construction and earthmoving equipment
- material handling machinery
- industrial hydraulic power units
- production and process equipment
- mobile hydraulic auxiliary systems
Important: Confirm mounting interface, shaft type, rotation, control configuration, and porting match the existing CAT 444-8538 installation before fitment.
Bosch Rexroth R986110680 Axial Piston Variable Pump | Replaces CAT 444-8538 | 100cc | 3600 PSI
$5,289.00
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Expected delivery Oct 14 - Oct 20
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