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Bosch Rexroth R986111246 (Series 52/53) is a reliable OEM replacement for CAT 358-4993, built to restore specified hydraulic performance and maintain direct-fit compatibility.
Technical Specifications
Flow Performance
With a 74 cc displacement, R986111246 delivers consistent volumetric output per revolution for predictable actuator response and stable system behavior. The design supports dependable flow delivery across operating speeds up to 2600 RPM, helping reduce variability in cycle performance. This stability supports repeatable machine operation under continuous duty.
Efficiency & Durability
Rated for 3600 PSI nominal pressure and 4600 PSI peak pressure, the unit is engineered to maintain performance under high-load conditions without frequent derating. Operation up to 2600 RPM supports reliable performance across a wide working range while maintaining consistent hydraulic output. The 52/53 series build is intended to sustain pressure capability and operational consistency over extended run time.
Installation
Designed as a direct OEM replacement for CAT 358-4993, this component is intended to match the existing interface for straightforward installation. Fit is aligned to OEM expectations, avoiding the need for mounting modifications when replacing the original part.
Features and Benefits
- 74 cc displacement: Provides predictable flow per revolution to maintain consistent machine response and repeatable cycle behavior.
- 3600 PSI nominal / 4600 PSI peak pressure capability: Supports reliable operation under demanding load conditions, including short-duration pressure spikes up to 4600 PSI.
- 2600 RPM maximum speed: Maintains dependable output across higher operating speeds, supporting stable performance in dynamic duty cycles.
Operational Information
Operate within the stated limits of 3600 PSI nominal (4600 PSI peak) and up to 2600 RPM to support reliability and consistent hydraulic output. The 48.5 weight reflects a robust assembly suited for sustained service in standard hydraulic operating environments.
Quality Assurance
Manufactured to Bosch Rexroth’s stringent quality standards with rigorous testing throughout the production process.
| Weight | 48.5 lbs |
|---|---|
| Dimensions | 15 × 15 × 15 in |
| Manufacturer | Bosch Rexroth |
| Pumps Max Pressure | 3600 PSI |
| Pumps Rated Speed | 2600 |
| Pumps Max Speed | 2600 |
| Pumps Displacement | 74cc |
| Pump Continuous Pressure | 3600 PSI |
| Pump Intermittent Pressure | 4600 PSI |
Product Selection Guide
These Series 52/53 components can be compared primarily by displacement (flow potential at a given speed) and allowable speed, while the listed nominal pressure is the same across the 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 |
|---|---|---|---|---|
| R986111246 | 74cc | 3600 PSI | 2600 | 52/53 |
| R986111250 | 45cc | 3600 PSI | 2600 | 52/53 |
| R986110977 | 28cc | 3600 PSI | 3000 | 52/53 |
| R986111344 | 85cc | 3600 PSI | 2500 | 52/53 |
| R986110081 | 71cc | 3600 PSI | 2600 | 52/53 |
Key Differences
Displacement
R986111246 is 74cc, positioned between lower-displacement alternatives (28cc, 45cc, 71cc) and the higher-displacement option (85cc); choose higher displacement when you need more flow at the same speed, or lower displacement when you need less flow or finer control.
Pressure Rating
All compared models list 3600 PSI nominal pressure; R986111246 additionally specifies 4600 PSI peak pressure, so confirm peak-pressure requirements if your system sees pressure spikes.
Speed
Maximum speed varies from 2500 to 3000: R986111246 is 2600, matching the 45cc and 71cc options; the 28cc option allows 3000, while the 85cc option is 2500, so select based on your required operating speed margin.
Quick Selection Guide
Choose: R986111246
Because: When you need a 74cc displacement unit with 3600 PSI nominal pressure, 4600 PSI peak pressure capability, and a 2600 max speed rating in Series 52/53.
Choose: Higher displacement model
Because: Choose R986111344 (85cc) when your required displacement is higher than 74cc and you can operate within its 2500 max speed rating (nominal pressure listed at 3600 PSI).
Choose: Lower pressure model
Because: None of the listed alternatives provide a lower nominal pressure rating; all show 3600 PSI nominal pressure, so select among them based on displacement and max speed instead.
Compatibility: Verify mounting pattern, shaft configuration, and port sizes match your existing installation, and confirm displacement, nominal/peak pressure requirements, and max speed align with your system.
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 R986111246, 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
Compatibility & Applications
Direct Replacement Information
This Rexroth R986111246 replaces CAT 358-4993 in closed-loop and open-circuit hydrostatic drive applications. If you’re comparing options across our hydraulic pumps lineup, displacement and control type are typically the fastest way to narrow fitment.
- Hydraulic systems requiring 74cc displacement variable-flow control typical of piston pumps
- Circuits operating at 3600 PSI nominal pressure (up to system relief settings) with stable pressure/flow regulation
- Axial piston variable pump installations up to 2600 RPM for hydrostatic transmissions, implement hydraulics, and auxiliary pump circuits
Common Applications
This Bosch Rexroth R986111246 is commonly used in:
- construction equipment hydrostatic drives
- mining and quarry machinery
- material handling equipment
- industrial mobile power units
- heavy-duty auxiliary hydraulic circuits
Important: Confirm mounting interface, shaft configuration, rotation, control type, and porting match the existing CAT 358-4993 installation before installation. If your system flow requirement is lower, consider the R986111250; if higher flow is needed, review the R986111344 to compare displacement and speed limits.
Bosch Rexroth R986111246 Axial Piston Variable Pump | Replaces CAT 358-4993 | 74cc | 3600 PSI
$4,223.00
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Expected delivery Oct 14 - Oct 20
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