3801757 Piston Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta piston kit from the Engine group, weighing 2.04 kg. It supersedes part number 23083960. Piston kit 3801790 is the close relation at 2.07 kg, so with only 29 grams between them the part number is the guide. This unit is supplied on an exchange basis: core deposit 3804757 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

⚙️ Key Features

• Supersedes 23083960
• 2.04 kg
• Piston with rings and pin as a kit
• Only 29 grams lighter than 3801790

🔌 Function

Supplies the piston with its rings and pin, sealing the combustion chamber and passing gas pressure down to the connecting rod.

⚠️ Common Signs of Failure

• Blue smoke and oil consumption rising
• Compression down and hard starting
• Piston slap or knocking when cold
• Scuffed or scored skirts and worn ring grooves on strip-down
• Crankcase pressure pushing oil out of the breather

🛠️ Service Notes

• 3801790 supersedes 3801756 and weighs 2.07 kg, so the two kits cannot be told apart on the scales — check which old number your engine's records carry
• Have the bore measured and honed before fitting new pistons, and renew the small-end and big-end hardware as specified
• Core deposit 3804757 is charged with this unit and refunded when the old one is returned - order both together

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801757 → Supersedes 23083960

OEM / Related Numbers

• 23083960 earlier number superseded by this part

📦 Condition

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