Hydraulic Oil ISO 22 - 4Boats
Hydraulic Oil ISO 22 - 4Boats
Hydraulic Oil ISO 22 Marine Steering Trim Tilt Fluid

Hydraulic Oil ISO 22 Marine Steering Trim Tilt Fluid

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Regular price Β£14.50 Sale priceΒ£13.19 Save Β£1.31
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Hydraulic Oil ISO 22

Marine Grade Steering & Power Trim Fluid

This ISO 22 Hydraulic Oil is a premium-quality mineral-based fluid specifically engineered to provide superior protection for marine hydraulic systems. Formulated with advanced anti-wear, anti-oxidant, and anti-foam additives, it ensures smooth operation of steering helms and power trim units even under high-pressure conditions.

MARINE PROTECTION: Enhanced with corrosion inhibitors to protect internal components against the harsh effects of saltwater and moisture contamination.

Key Features

  • βœ” High Resistance to Oxidation
  • βœ” Excellent Anti-Foam Properties
  • βœ” Safe for Yellow Metals (Brass/Bronze)
  • βœ” Superior Low-Temperature Fluidity

Technical Specs

Viscosity @ 40Β°C 22.0 cSt
Viscosity @ 100Β°C 4.3 cSt
Viscosity Index 100
Flash Point (COC) 165Β°C
Pour Point -25Β°C
Standards DIN 51524 Part 2

Compatibility / Fitment Guide

System Type Common Brands Application Notes
Hydraulic Steering SeaStar, BayStar, Hynautic Suitable alternative to HA5430 fluid.
Power Trim & Tilt Yamaha, Mercury, Suzuki, Tohatsu Ideal for outboard trim/tilt pumps.
Hydraulic Lifts Bob's Machine, Panther Used in hydraulic jack plates.
Trim Tabs Bennett Marine Compatible with hydraulic tab actuators.

OEM Cross Reference

SeaStar / Dometic HA5430 / HA5430H / HA5440
Shell Tellus S2 M 22 / Tellus 22
Mobil DTE 22 / Velocite No. 10
Castrol Hyspin AWS 22

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement fluid, manufactured to meet or exceed ISO VG 22 standards for marine hydraulic performance.

How do I know if it is compatible?

We recommend checking your owner's manual. If it specifies ISO 22, VG 22, or mentions SeaStar/BayStar compatibility, this oil is a guaranteed fit.

Can I mix this with my existing red steering fluid?

While ISO 22 is functionally compatible with many red fluids (like MIL-H-5606), we always recommend a full system flush for optimal performance and to ensure the additive packages remain effective.

Note: 4boats.co.uk recommends verifying your equipment requirements against the specifications above before purchase.

For the products under Β£150 the shipping is Β£6.99.

Free delivery for most items over Β£150.

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