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Bosch Rexroth R986110968 (Series 52/53) is a direct OEM replacement for CAT 421-1146, built to deliver reliable hydraulic performance with OEM-level compatibility in a 100 cc displacement package.
Technical Specifications
Flow Performance
With a 100 cc displacement, the R986110968 provides consistent, predictable flow output across its operating range for stable actuator and circuit response. The design supports high-output performance up to 2300 max speed, helping maintain responsive hydraulic function under dynamic load conditions.
Efficiency & Durability
Rated for 3600 PSI nominal pressure with 4600 PSI peak capability, the unit is engineered to sustain performance in high-pressure duty cycles without sacrificing operational stability. Its 2300 max speed capability supports sustained operation while maintaining controlled hydraulic output under demanding conditions.
Installation
Designed as an OEM-fit replacement for CAT 421-1146, the R986110968 installs as a direct replacement with standard mounting and connection compatibility. No modifications are required when replacing the original component in the same configuration.
Features and Benefits
- 100 cc displacement: Delivers consistent volumetric output per revolution for predictable circuit response and repeatable machine performance.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports high-pressure operation and short-duration pressure spikes without requiring derating in typical duty cycles.
- 2300 max speed capability: Enables responsive hydraulic performance at higher operating speeds while maintaining controlled output characteristics.
Operational Information
Optimized for continuous operation at 3600 PSI nominal pressure with intermittent peaks up to 4600 PSI and speeds up to 2300. For best reliability, operate within the machine’s specified hydraulic fluid cleanliness and temperature limits for the system.
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 R986110968 replaces CAT 421-1146 in high-pressure mobile and industrial hydraulic system applications.
- Closed-loop or open-circuit hydraulic systems requiring 100cc displacement variable flow
- Hydraulic circuits operating at 3600 PSI nominal pressure
- Pump-drive circuits up to 2300 max input speed for hydrostatic transmission, implement, or auxiliary functions
Common Applications
This Bosch Rexroth R986110968 is commonly used in:
- construction and earthmoving equipment hydraulics
- off-highway vehicle hydrostatic drive systems
- industrial power units and test stands
- material handling and lifting equipment
Important: Confirm the mounting interface, shaft configuration, porting, and control/compensator arrangement match the existing CAT 421-1146 installation before ordering.
Product Selection Guide
These Series 52/53 components share the same nominal pressure rating, so selection is primarily driven by required displacement (flow per revolution) and allowable operating speed relative to your system demands.
?? 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 |
|---|---|---|---|---|
| R986110968 | 100cc | 3600 PSI | 2300 | 52/53 |
| R986110041 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986111651 | 60cc | 3600 PSI | 2600 | 52 |
| R986110080 | 28cc | 3600 PSI | 3000 | 52/53 |
| R986110106 | 71cc | 3600 PSI | 2600 | 52/53 |
Key Differences
Displacement
R986110968 is the highest displacement option listed at 100cc, while the comparison parts range from 28cc to 71cc; choose higher displacement when you need more flow per revolution, and lower displacement when you want finer control or lower flow demand.
Pressure Rating
All compared parts list 3600 PSI pressure, matching the nominal pressure of R986110968; if your application relies on operating above nominal, note that only R986110968 includes a stated peak pressure of 4600 PSI and you should verify peak requirements against the exact model selected.
Speed
Maximum speed varies across the options: R986110968 is rated at 2300, while the others list 2600 or 3000; select a model with sufficient speed capability for your prime mover and duty cycle.
Quick Selection Guide
Choose: R986110968
Because: When you need 100cc displacement with 3600 PSI nominal pressure and operation up to 2300 max speed, and your system may require up to 4600 PSI peak capability.
Choose: R986110041 / R986111651 / R986110106
Because: When your flow requirement is lower than 100cc and you want a mid-range displacement option (45cc, 60cc, or 71cc) with the same 3600 PSI pressure rating and a higher listed speed of 2600.
Choose: R986110080
Because: When you need the lowest displacement option (28cc) and the highest listed speed (3000) while maintaining a 3600 PSI pressure rating.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm the selected model’s speed and pressure limits align with your operating conditions. If you’re comparing options across our broader hydraulic pumps lineup, match displacement and control type to your circuit (open-loop vs. closed-loop) and duty cycle.
For application-specific guidance, contact our technical team.
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 R986110968, 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 (including adjacent Series 52/53 piston pumps and related replacements such as R986111250)
- 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 R986110968 Axial Piston Variable Pump | Replaces CAT 421-1146 | 100cc | 3600 PSI
$5,289.00
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Expected delivery Oct 13 - Oct 19
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