861920 Volvo Penta Heat Exchanger End Cover | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta Heat Exchanger Rubber End Cover - Part Number: 861920

A genuine Volvo Penta moulded rubber end cover for the heat exchanger fitted to selected MD2010, MD2020, MD2030 and MD2040 marine diesel engines.

The cover fits over the end of the heat-exchanger housing and tube stack. It is retained by stainless-steel hose clamps and seals the cooling-water passages while directing flow through the heat-exchanger core.

⚙️ Key Features

• Genuine Volvo Penta OEM heat-exchanger end cover
• Correct Volvo Penta part number 861920
• Moulded rubber construction
• Used individually or as a matching pair depending on engine version
• Fits selected MD2000-series freshwater-cooled marine diesels

🚤 Compatibility

Commonly used on

• Volvo Penta MD2000-series heat exchangers
• Freshwater-cooled marine diesel heat-exchanger housings and tube stacks

Typically suits

• Engine models:
• Volvo Penta MD2010A - used with opposite cover 861924
• Volvo Penta MD2010B - used with opposite cover 861924
• Volvo Penta MD2010C - two 861920 covers used
• Volvo Penta MD2010D - two 861920 covers used
• Volvo Penta MD2020A - used with the corresponding opposite-end cover
• Volvo Penta MD2020B - used with the corresponding opposite-end cover
• Volvo Penta MD2020C - two 861920 covers used
• Volvo Penta MD2020D - two 861920 covers used
• Volvo Penta MD2030C - two 861920 covers used
• Volvo Penta MD2030D - two 861920 covers used
• Volvo Penta MD2040C - two 861920 covers used
• Volvo Penta MD2040D - two 861920 covers used
• HP Range: Approximately 10HP - 40HP
• Engine Type: Volvo Penta freshwater-cooled three- and four-cylinder marine diesel
• Year Range: Approximately 1993-2005

🔌 Function

The rubber cover seals the heat-exchanger housing around the tube stack and directs coolant or raw-water flow through the intended passages. It also accommodates thermal expansion and vibration between the metal exchanger components.

⚠️ Common Signs of Failure

• Cracking, hardening or splitting of the rubber
• Cooling-water or coolant leakage around the end cover
• Bulging beneath the retaining clamp
• Corrosion or damage caused by a loose clamp
• Reduced cooling performance from an incorrectly seated cover

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 861920 current heat-exchanger rubber end-cover reference
• 861924 opposite-end cover used on selected A and B engine versions

OEM / Related Numbers

• 861920
• 861924 related opposite end cover
• 3580326 related MD2030 end-cover configuration
• 3581925 related heat-exchanger housing
• 3581926 related heat-exchanger housing
• 3581927 related heat-exchanger housing
• 961672 retaining hose clamp
• 961673 retaining hose clamp
• 961667 retaining hose clamp

Aftermarket / Verified Equivalents

• ALLMAR: VG861920
• Marine Parts System: MPS-861920
• GHmarine: 861920 replacement end cap
• Chuhals: 861920 / 861924 heat-exchanger end-cover kit

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated