Mercury Mercruiser 10-90588 Reservoir Screw & O-Ring Power Trim Pump 150-300HP
90588
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Reservoir Screw & O-Ring 10-90588
Precision Replacement for Power Trim Hydraulic Systems
Maintain the integrity of your outboard's hydraulic system with this precision-engineered reservoir screw and O-ring assembly. Designed specifically for Mercury and Mariner power trim pumps, this part ensures a leak-proof seal for the hydraulic fluid reservoir, protecting your trim system from fluid loss and environmental contamination.
Key Features
- ✔ Direct fit for Mercury Power Trim Pumps
- ✔ Includes pre-installed sealing O-ring
- ✔ Durable, marine-grade construction
- ✔ Prevents hydraulic fluid leaks
Technical Specs
| Part Number: | 10-90588 / 90588 |
| Components: | Screw + O-Ring |
| Application: | Hydraulic Reservoir |
| Material: | Marine Grade Alloy |
Compatibility / Fitment Guide
| Make/System | Model Range | Serial/Notes |
|---|---|---|
| Mercury / Mariner | V-150, V-150 Magnum/Marathon | 5600162 thru 0A904645 |
| Mercury / Mariner | V-175, V-200 | Up to 0C100860 |
| Mercury / Mariner | V-225 | Serial 5628028 and UP |
| Mercury Race Outboard | MERC MOD-VP / XR2 | Various EFI/Carb Models |
OEM Cross Reference
| Mercury Marine / Mercruiser | 10-90588, 90588, 10-90588T |
| Quicksilver | 10-90588 |
Questions & Answers
Is this a genuine original part?
This is a premium quality replacement part designed to meet or exceed original Mercury Marine (OE) standards for fitment and hydraulic sealing performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN (10-90588) against your parts manual. This screw is typically found on the power trim pump reservoir of large V6 outboards (150-300HP).
Does this include the O-ring?
Yes, this SKU includes both the reservoir screw and the necessary sealing O-ring as a complete assembly.
Note: Please verify your engine's serial number against the fitment guide above to ensure correct application before purchasing.
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