3857857 Anode | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta anode specified for use in saltwater, from the Marine Propulsion group, weighing 2.155 kg and listed for 17 applications across the TSK, DP and SX families.

🚤 Compatibility

Typically suits:

• Volvo Penta TSK SX-M
• Volvo Penta TSK SX-MAC
• Volvo Penta TSK SX-MACLT
• Volvo Penta TSK SX-MBAC
• Volvo Penta TSK SX-MDA
• Volvo Penta TSK SX-MDB
• Volvo Penta TSK SX-MDC
• Volvo Penta TSK SX-MHP
• Volvo Penta TSK SX-MLT
• Volvo Penta DP-SM
• Volvo Penta DP-SMTD
• Volvo Penta DP-SMTD1
• Volvo Penta DP-SMTD3
• Volvo Penta SX-M
• Volvo Penta SX-M1
• Volvo Penta SX-MTD
• Volvo Penta SX-MTD3

• Engine Family: TSK, DP, SX

⚙️ Key Features

• For use in saltwater
• 2.155 kg
• 17 applications across TSK, DP and SX
• Marine Propulsion group

🔌 Function

Corrodes in place of the drive, giving up its own material to the seawater so the alloy castings, shafts and fasteners around it are left alone.

⚠️ Common Signs of Failure

• Anode wasted, thin or crumbling away
• Anode barely eaten at all, which means it is not bonded and is doing nothing
• White or pink corrosion blooming on the drive castings
• Paint blistering or lifting around fittings
• Fasteners and trim tabs pitting where the anode should be protecting them

🛠️ Service Notes

• The freshwater anode is 3857858, and at 0.531 kg it weighs a quarter of this one despite sharing the same 17 applications — the water the boat lies in decides which you fit, and getting it wrong leaves the drive unprotected
• Fit it to bare, unpainted metal and never paint over an anode, or it stops working entirely
• Renew it once about half the material has gone rather than waiting for it to disappear

📦 Condition

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