Bosch Rexroth R986111086 is a Series 52/53 hydraulic unit engineered as a direct OEM replacement for CAT 352-4500, delivering reliable 45 cc displacement performance with OEM-fit compatibility.
Technical Specifications
Flow Performance
With a 45 cc displacement, the R986111086 provides consistent volumetric output per revolution to support stable hydraulic flow demand across operating speeds. Performance is maintained up to 2600 max speed, supporting predictable response and controllability within the system’s designed operating window.
Efficiency & Durability
Rated for 3600 PSI nominal pressure and 4600 PSI peak pressure, the unit is built to sustain high-load hydraulic operation while maintaining performance consistency. The 2600 max speed capability supports duty cycles that require both pressure and rotational speed without exceeding stated limits.
Installation
Designed as an OEM replacement for CAT 352-4500, the R986111086 is intended for direct fit installation with no modifications required. Series 52/53 configuration supports straightforward integration where the original unit is specified.
Features and Benefits
- 45 cc displacement: Delivers a fixed 45 cc per revolution output characteristic for predictable system flow behavior.
- 3600 PSI nominal / 4600 PSI peak pressure rating: Supports continuous operation at 3600 PSI with headroom up to 4600 PSI for transient peak events.
- 2600 max speed capability: Maintains rated operation up to 2600 speed limit to support responsive hydraulic performance across the usable RPM range.
Operational Information
Operate within the stated limits of 3600 PSI nominal pressure, 4600 PSI peak pressure, and 2600 max speed to maintain reliable performance. Component mass is 40 (as specified), supporting stable installation in OEM replacement configurations.
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 |
Product Selection Guide
These Series 52/53 components share the same 3600 PSI nominal pressure class, so selection among them is primarily driven by displacement (flow) and allowable operating speed. If you’re comparing other hydraulic pumps, focus on matching your system’s pressure class and required flow at available RPM.
?? 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 |
|---|---|---|---|---|
| R986111086 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986110977 | 28cc | 3600 PSI | 3000 | 52/53 |
| R986110126 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986111171 | 60cc | 3600 PSI | 2600 | 52 |
| R986110050 | 28cc | 3600 PSI | 3000 | 52/53 |
Key Differences
Displacement
R986111086 and R986110126 are 45cc options for mid-range flow; R986110977 and R986110050 are 28cc for lower flow needs; R986111171 is 60cc for higher flow demand—choose based on required system flow at your available drive speed.
Pressure Rating
All listed comparison models show 3600 PSI pressure, matching the current product’s nominal rating; R986111086 additionally specifies a 4600 PSI peak capability—confirm your duty cycle and pressure spikes align with the component you select.
Speed
R986111086 and the 45cc/60cc comparison models list 2600 max speed, while the 28cc models list 3000—ensure your prime mover speed does not exceed the selected unit’s maximum.
Quick Selection Guide
Choose: R986111086
Because: When you need 45cc displacement with 3600 PSI nominal pressure, 4600 PSI peak capability, and a 2600 max speed limit in a Series 52/53 replacement.
Choose: Higher displacement model
Because: Choose R986111171 (60cc) when your required flow is higher than a 45cc unit can provide at the same 3600 PSI and 2600 max speed constraint.
Choose: Lower displacement model
Because: Choose R986110977 or R986110050 (28cc) when your flow requirement is lower and you may benefit from a higher listed max speed (3000) while staying in the 3600 PSI pressure class.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm displacement, pressure, and max speed requirements align with your system. For broader options within this pump family, browse our piston pumps selection.
For application-specific guidance, contact our technical team.
Compatibility & Applications
Direct Replacement Information
This Bosch Rexroth R986111086 replaces CAT 352-4500 in high-pressure mobile and industrial hydraulic system applications.
- Closed-loop or open-circuit hydraulic systems requiring 45cc displacement variable flow
- High-pressure hydrostatic drive circuits operating at 3600 PSI nominal pressure
- Pump-controlled actuator circuits (lift, tilt, steering, fan drive) where variable displacement control is used
- Systems with prime mover speeds up to 2600 RPM maximum
Common Applications
This Bosch Rexroth R986111086 is commonly used in:
- construction equipment (excavators, loaders, dozers)
- mining equipment
- forestry machinery
- material handling equipment
- industrial hydraulic power units
Important: Confirm mounting interface, shaft type, porting, control configuration, and rotation match the existing CAT 352-4500 installation before replacement. If your machine requires a different Rexroth build or displacement, consider related options such as R986111250.
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 R986111086, 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
Bosch Rexroth R986111086 Axial Piston Variable Pump | Replaces CAT 352-4500 | 45cc | 3600 PSI
$3,033.00
Get an exact shipping rate for your ZIP in the cart

There are no reviews yet.