21432596 Return Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D3 Power Steering Return Hose - Part Number: 21432596

Low-pressure servo-steering return hose used on specified Volvo Penta D3 sterndrive engine installations. It carries steering fluid from the cooler and steering circuit back toward the reservoir or pump inlet and is formed to clear the engine-mounted brackets and belt-driven steering components.

⚙️ Key Features

• Genuine Volvo Penta D3 steering-system return hose

• Used on D3-Aquamatic installations with engine-driven servo steering

• Low-pressure formed hose with the correct routing and connection geometry

• Supports fluid return without kinking, aeration or contact with rotating components

• Should be inspected with the reservoir, steering cooler, pressure hose and support brackets

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21432596 - Current listed Volvo Penta return-hose reference

OEM / Related Numbers:

• 21248117 - Steering-system support bracket

• 3887375 - Steering-fluid reservoir

• 22352491 - V-ribbed accessory belt

• 21268651 - Companion return hose used in the steering assembly

• 21214069 - Steering hose

• 21166139 / 21824969 - Steering hose reference and later service reference

• 21166142 - Steering hose

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D3 Aquamatic sterndrive power-steering systems

Typically suits:

• Engine / drive models:

• D3-140A-D

• D3-140A-E

• D3-140A-F

• D3-170A-D

• D3-170A-E

• D3-170A-F

• D3-200A-D

• D3-200A-E

• D3-200A-F

• D3-220A-D

• D3-220A-E

• D3-220A-F

• HP Range: 140 hp - 220 hp across the listed D3 Aquamatic models

• Engine Type: Volvo Penta D3 inline five-cylinder marine diesel with sterndrive power steering

• Year Range: D, E and F generation D3 Aquamatic engines; final fitment is serial controlled

🔌 Function

Returns hydraulic steering fluid at low pressure after it has passed through the servo-steering circuit and cooler. Free flow through the hose prevents pump cavitation, fluid aeration and excessive steering-system heat.

Common signs of failure:

• Hydraulic-fluid leakage, wetness or hose sweating

• Cracking, swelling, softening or abrasion of the hose cover

• Foaming or aeration in the steering-fluid reservoir

• Whining servo pump or stiff, inconsistent steering

• Kinked routing or internal hose collapse restricting return flow

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging