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Bosch Rexroth R986111092 (Series 52/53) is an OEM replacement for CAT 388-9643, built to deliver reliable, compatible hydraulic performance with matched operating characteristics.
Technical Specifications
Flow Performance
With a 100 cc displacement, the R986111092 provides consistent volumetric output per revolution for predictable actuator response. Its flow capability scales directly with speed up to 2300 RPM, supporting stable machine performance across the operating range.
Efficiency & Durability
Rated for 3600 PSI nominal pressure with 4600 PSI peak capability, this unit is designed to maintain performance under high-load hydraulic demands. Operation up to 2300 RPM supports sustained duty cycles while helping preserve consistent output under varying pressure conditions.
Installation
Engineered as a direct OEM replacement for CAT 388-9643, the R986111092 is intended to match the existing interface for straightforward installation. It is designed to fit without modifications when replacing the original component.
Features and Benefits
- 100 cc displacement: Provides predictable output per revolution for repeatable machine response and controllable hydraulic motion.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports high working pressure with capacity for short peak events to maintain function under load changes.
- 2300 RPM maximum speed: Enables stable flow delivery across a wide operating speed range for responsive system performance.
Operational Information
Designed for operation up to 3600 PSI nominal pressure (4600 PSI peak) and speeds up to 2300 RPM to support consistent hydraulic performance in demanding duty cycles. The 75 lb component mass reflects a robust build suited for sustained operation within its 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 R986111092, 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 a 3600 PSI nominal pressure rating, with selection primarily driven by displacement (flow needs) and allowable operating speed.
?? 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 |
|---|---|---|---|---|
| R986111092 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986111195 | 85cc | 3600 PSI | 2500 | 52/53 |
| R986110068 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986110079 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986110630 | 100cc | 3600 PSI | 2300 | 52/53 |
Key Differences
Displacement
R986111092, R986110079, and R986110630 are 100cc options for higher flow per revolution, while R986111195 (85cc) and R986110068 (45cc) reduce flow for smaller system demand or finer control.
Pressure Rating
All listed comparison parts show 3600 PSI pressure, matching the nominal pressure of R986111092; confirm your system does not require the 4600 PSI peak capability noted for R986111092.
Speed
R986111092 (and the 100cc alternatives R986110079/R986110630) list 2300 max speed, while the 85cc and 45cc options list higher max speeds (2500–2600), which may matter if your duty cycle runs at higher RPM.
Quick Selection Guide
Choose: R986111092
Because: When you need a 100cc unit with 3600 PSI nominal pressure, 4600 PSI peak capability, and a 2300 max speed limit.
Choose: R986110079 or R986110630
Because: When you need the same 100cc displacement, 3600 PSI rating, and 2300 max speed as the current unit (often used when maintaining the same core performance envelope).
Choose: R986111195 or R986110068
Because: When you need reduced displacement (85cc or 45cc) and/or higher listed max speed (2500–2600) compared with the 100cc/2300 options.
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
The Bosch Rexroth R986111092 axial piston variable pump replaces CAT 388-9643 in high-pressure closed-loop or open-circuit hydraulic pumps system applications.
- Hydraulic systems requiring 100cc/rev variable displacement pump output (see additional piston pumps for related configurations)
- Circuits operating at 3600 PSI nominal pressure where variable flow control is required
- Mobile and industrial axial piston pump circuits for hydrostatic drives, implement hydraulics, and pressure-compensated load-sensing systems
- Installations requiring pump operation up to 2300 max RPM
Common Applications
This Bosch Rexroth R986111092 is commonly used in:
- construction and earthmoving equipment
- mining equipment
- material handling equipment
- industrial power units and process machinery
- mobile hydraulic power packs
Important: Confirm the mounting interface, shaft type, rotation, control configuration, and porting match the existing CAT 388-9643 installation for proper system compatibility. If you’re comparing adjacent Rexroth options, you may also consider R986111250 as a starting point for cross-referencing.
Bosch Rexroth R986111092 Axial Piston Variable Pump | Replaces CAT 388-9643 | 100cc | 3600 PSI
$5,289.00
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Expected delivery Oct 13 - Oct 19
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