21162171 Adapter Kit | Genuine Volvo Penta Part

🔧 Product Description

A factory adapter package used in the oil-cooler and connecting-component installation of selected HS25 reversing gears. It provides the correct interface between the transmission housing and the associated cover or cooler connection.

🚤 Compatibility

Typically suits:

• Volvo Penta D3-110I-C
• Volvo Penta D3-130I-C
• Volvo Penta D2-55F
• Volvo Penta D2-50F
• Volvo Penta D2-75F
• Volvo Penta D2-60F
• Volvo Penta D3-110I-G
• Volvo Penta D3-110I-H
• Volvo Penta D3-160I-C
• Volvo Penta HS25A
• Volvo Penta HS25A-B
• Volvo Penta HS25
• Volvo Penta HS25AE-A

• Engine Family: D, HS
• HP Range: 50-160 HP
• Year Range: Approximately 2000 onward

⚙️ Key Features

• Genuine HS25 connection adapter package
• Used with HS25A and HS25AE transmission installations
• Supports revised oil-cooler and connection arrangements
• Factory-machined interface and sealing geometry
• Associated cover and fasteners are selected separately
• Engine type: Volvo Penta HS25 hydraulic marine reversing gear

📋 Kit Contents

• 1 x complete adapter assembly 21162171
• Internal adapter seals and minor hardware are supplied as kit-only pieces and are not separately itemised in the public Volvo Penta listing
• Cover 3582305, six spring washers 941908 and six screws 970947 are adjacent separate catalogue items and are not confirmed as included

🔌 Function

Provides the machined connection and spacing required for the specified transmission cover, oil-cooler circuit or revised connecting-component arrangement.

⚠️ Common Signs of Failure

• Oil leakage around the adapter interface
• Cover or cooler connections will not align correctly
• Adapter threads or sealing faces are damaged
• Revised cooler arrangement cannot be installed with the original parts
• Transmission service requires the updated connection package

🛠️ Service Notes

• Confirm the kit is the correct one for your engine and for the component being adapted before fitting anything, and check the contents are complete
• Fit all the seals, gaskets and fasteners supplied and do not mix them with old parts; the kit is designed to work as a whole
• Follow the fitting instructions supplied with the kit together with the workshop manual for your engine for tightening figures and sequence
• Check clearance and alignment to surrounding pipework, hoses, wiring and moving parts once assembled, then leak or function check before closing up

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3582305 associated cover
• 941908 spring washer
• 970947 hexagon screw
• 21159822 associated bracket kit
• 21152060 associated oil cooler kit

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging