421082 Shaft | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shaft from the Cooling System group, listed for use with 866585, weighing 0.240 kg and covering 14 applications across the TMD and TAMD series. It supersedes part numbers 422148 and 421148.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD100C
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A
• Volvo Penta TAMD102A
• Volvo Penta TAMD102D
• Volvo Penta TAMD103A
• Volvo Penta TAMD121D
• Volvo Penta TAMD122A
• Volvo Penta TAMD122A/C
• Volvo Penta TAMD122D
• Volvo Penta TAMD122P-A
• Volvo Penta TAMD122P-B
• Volvo Penta TAMD122P-C

• Engine Family: TMD, TAMD

⚙️ Key Features

• Listed for use with 866585
• 0.240 kg
• Supersedes 422148 and 421148
• 14 applications on TMD and TAMD engines

🔌 Function

Carries the pump rotor and its bearings, transmitting drive from the belt or gear into the coolant pump.

⚠️ Common Signs of Failure

• Coolant weeping from the pump behind the pulley
• Play or rumble felt at the pulley when the belt is slack
• Seal track on the shaft worn into a groove or pitted
• Bearing seat worn so the races turn on the shaft
• Shaft bent, so the pulley runs out of true

🛠️ Service Notes

• Shaft 421549 at 0.274 kg is the equivalent shaft supplied within repair kit 3830711 for the TAMD, TWD, TID, TD and TAD engines, so do not order on weight alone
• Renew the seal and bearings with the shaft, as a new shaft in a worn housing will leak again

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 421082 → Supersedes 422148

📦 Condition

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