3804113 Servo Unit Core | Genuine Volvo Penta Part

🔧 Product Description

Core deposit for an exchange servo unit, listed under the Ignition and Control Systems group at 12.8 kg. It is the refundable charge held against the worn servo you return, raised as a line on the order rather than shipped as hardware. Under Volvo Penta's core numbering it pairs with part 3801113. At 12.8 kg the return goes by normal carrier, but it should be drained and bagged first.

⚙️ Key Features

• Refundable core deposit, not a fitted part
• Pairs with part 3801113
• 12.8 kg
• Ignition and Control Systems group

🔌 Function

Carries the refundable core charge on an exchange servo unit; the servo it covers provides the hydraulic assistance that moves the drive or steering against load.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the servo unit being exchanged
• Steering or drive movement going heavy, with assistance dropping away at one end of travel
• Oil weeping from the servo body or past its shaft seal
• A groan or whine from the unit as the helm is turned
• Jerky or delayed response between helm input and drive movement, with pressure below specification on test

🛠️ Service Notes

• The deposit is refunded when the old servo unit is returned; ordering this line on its own supplies no part
• Drain the servo and cap its ports before returning it, as oil escaping in transit can damage the core and the packaging
• Check the pump, hoses and fluid condition before condemning the servo, since low pressure elsewhere gives the same symptoms

📦 Condition

• Refundable core deposit - not a physical part