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Mercury Mercruiser 10-90588 Reservoir Screw & O-Ring Power Trim Pump 150-300HP

Mercury Mercruiser 10-90588 Reservoir Screw & O-Ring Power Trim Pump 150-300HP

Regular price £9.48 GBP
Regular price Sale price £9.48 GBP
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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.

RELIABILITY: Built to meet or exceed OEM specifications, featuring a corrosion-resistant finish and a high-grade elastomeric O-ring for long-lasting marine performance.

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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