861660 Tensioning Arm | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta tensioning arm from the Alternator, Charging, Electric Motor and Electric Drives group, with an M8 thread and listed for engines from serial number 220420732 onwards, weighing 0.256 kg and covering 28 applications across TAMD, KAMD, MD and KAD series engines. It supersedes part number 860962, which was catalogued earlier as a tensioner.

🚤 Compatibility

• Engine Family: TAMD, KAMD, MD, KAD
• Serial Range: M8, SN220420732-

Full model list at the end of this description.

⚙️ Key Features

• M8 thread
• For engines from serial number 220420732 onwards
• 0.256 kg
• 28 applications across four engine series
• Supersedes 860962, catalogued earlier as a tensioner

🔌 Function

Carries the adjustment that pulls the alternator over to set and hold the belt tension.

⚠️ Common Signs of Failure

• Belt tension slackening off between checks
• Belt squeal on load or when cold
• Arm slot worn or elongated where the bolt clamps
• Adjusting thread seized, stripped or corroded
• Arm bent or cracked at the slot

🛠️ Service Notes

• Check the engine serial number and the thread size before ordering, as tensioning arms 861664 and 861667 are the other two listed in this run
• Renew the belt when the arm is changed and reset the tension after a short run

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 861660 → Supersedes 860962 → Supersedes 860694

OEM / Related Numbers

• 860962 earlier number superseded by this part
• 860694 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta MD2020B, MD2020-C, MD2020-D
• Volvo Penta MD2030B, MD2030-C, MD2030-D
• Volvo Penta MD2040B, MD2040-C, MD2040-D
• Volvo Penta KAD42B, KAD42P-A
• Volvo Penta KAMD42B, KAMD42P-A
• Volvo Penta TAMD42WJ-A, TAMD42B
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAD43P-A
• Volvo Penta KAMD300-A