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Bosch Rexroth R986111281 (Series 52/53) is an OEM replacement for CAT 363-8330, delivering reliable hydraulic performance with direct compatibility for consistent machine operation.
Technical Specifications
Flow Performance
With a 100 cc displacement, the R986111281 provides predictable volumetric output to support stable actuator and circuit response across operating speeds. Rated for up to 2300 max speed, it maintains consistent flow characteristics for responsive system performance.
Efficiency & Durability
Designed for demanding duty cycles, this unit supports 3600 PSI nominal pressure with 4600 PSI peak capability to handle transient load spikes without compromising performance. Operation up to 2300 max speed helps sustain output in high-throughput hydraulic systems while maintaining dependable performance under pressure.
Installation
Engineered as a direct OEM replacement for CAT 363-8330, the R986111281 matches OEM fit and mounting expectations. It is intended to install without machine modifications when replacing the original component.
Features and Benefits
- 100 cc displacement: Delivers consistent volumetric output per revolution for stable, repeatable hydraulic response.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports continuous high-pressure operation and tolerates short-duration pressure spikes within rated limits.
- 2300 max speed capability: Enables reliable performance at higher operating speeds to maintain system responsiveness and throughput.
Operational Information
Operate within the rated 3600 PSI nominal and 4600 PSI peak limits and up to 2300 max speed to maintain reliable performance. Temperature range is not specified; use the machine’s established hydraulic fluid and operating conditions appropriate for the original CAT 363-8330 installation.
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 |
Compatibility & Applications
Direct Replacement Information
This Rexroth R986111281 replaces CAT 363-8330 in high-pressure hydrostatic and closed/open-loop hydraulic pumps system applications.
- Hydraulic systems requiring 100cc displacement variable flow control
- Circuits operating at 3600 PSI nominal pressure with intermittent high-load demands
- Axial piston variable pump circuits for hydrostatic drive, implement hydraulics, and auxiliary power units up to 2300 max speed
Common Applications
This Bosch Rexroth R986111281 is commonly used in:
- construction and earthmoving equipment
- mining equipment
- industrial power units and test stands
- material handling machinery
- marine and offshore hydraulic power packs
Important: Verify mounting pattern, shaft type, rotation, control configuration, and porting match the existing CAT 363-8330 installation before ordering.
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 R986111281, 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
Within the 52/53 series, R986111281 is the highest-displacement option listed (100cc) while maintaining the same nominal pressure rating as the comparison parts, so selection is primarily driven by required flow (displacement) and allowable speed. If you are comparing similar units, browse related piston pumps for additional displacement and control options.
?? 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 |
|---|---|---|---|---|
| R986111281 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986111411 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986111503 | 85cc | 3600 PSI | 2500 | 52/53 |
| R986111395 | 60cc | 3600 PSI | 2600 | 52 |
| R986110940 | 63cc | 3600 PSI | 2600 | 53 |
Key Differences
Displacement
R986111281 provides 100cc displacement versus 45cc (R986111411), 60cc (R986111395), 63cc (R986110940), and 85cc (R986111503); choose higher displacement when you need more flow per revolution, and lower displacement when you want reduced flow or finer control at a given speed.
Pressure Rating
All listed comparison models show 3600 PSI pressure, matching the nominal pressure of R986111281; if your system requires operation above nominal pressure, confirm the full pressure requirements against the 4600 PSI peak rating of R986111281 and ensure the replacement part meets the same duty profile.
Speed
R986111281 is rated to 2300 max speed, while the comparison parts list higher max speeds (2500–2600); if your application operates near the upper end of pump speed, select a model whose max speed meets or exceeds your operating speed. For a related lower-displacement option in the same family, consider R986111250 when matching flow requirements.
Quick Selection Guide
Choose: R986111281
Because: When you need 100cc displacement with 3600 PSI nominal pressure, up to 4600 PSI peak pressure, and operation at or below 2300 max speed.
Choose: R986111503
Because: When you need a similar nominal pressure rating but a lower displacement than 100cc (85cc) and a higher listed max speed (2500) than R986111281.
Choose: R986111411 / R986111395 / R986110940
Because: When you need lower displacement options (45cc, 60cc, or 63cc) at the same listed 3600 PSI pressure and higher listed max speeds (2600) than R986111281. You may also cross-check alternatives like R986111344 or R986111484 when comparing mounting and control configurations.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation.
For application-specific guidance, contact our technical team.
Bosch Rexroth R986111281 Axial Piston Variable Pump | Replaces CAT 363-8330 | 100cc | 3600 PSI
$5,289.00
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Expected delivery Oct 09 - Oct 15
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