851661 Shift Mechanism | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shift mechanism from the Marine Propulsion group, weighing 0.497 kg and listed for 69 applications across the MD, D, TMD, MS, BB and AD series.

🚤 Compatibility

• Engine Family: MD, D, TMD, MS, BB, AD, TAMD

Full model list at the end of this description.

⚙️ Key Features

• 0.497 kg
• 69 applications across six engine series

🔌 Function

Converts the movement of the control cable into the travel that engages and releases the drive.

⚠️ Common Signs of Failure

• Gear hard to select or needing a second attempt
• Drive jumping out of gear under load
• Slop or lost motion before anything happens
• Mechanism stiff, notchy or seized with corrosion
• Wear visible on the pivots and contact faces

🛠️ Service Notes

• Adjusting washers 851622, 851623 and 851624 at 0.10 mm, 0.15 mm and 0.35 mm are the shims used to set this assembly, and lock ring half 851629 shares the same 69 application listing
• Set the cable so both stops are reached before locking the adjustment
• Check the cable is free before condemning the mechanism, as a stiff cable gives the same symptoms

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 2003, 2003R, 2003R SOLAS, 120S, 120S-B, 740A, 2003TB, 2003TB SOLAS, 120SC, 120S-D, 120S-E, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 2002, 2001R
• Volvo Penta MS2B-A, MS2B-L, MS2L-E, MS2B, MS2V, MS2A-D, MS2A-E
• Volvo Penta MD5A, MD5B, MD5C
• Volvo Penta AD31, AD31B
• Volvo Penta MD11C, MD11D
• Volvo Penta MD17C, MD17D
• Volvo Penta MD2010-C, MD2010-D
• Volvo Penta MD2020-C, MD2020-D
• Volvo Penta MD2030-C, MD2030-D
• Volvo Penta MD2040-C, MD2040-D
• Volvo Penta MD22, MD22A
• Volvo Penta MD6A, MD6B
• Volvo Penta MD7B, MD7A
• Volvo Penta TAMD31A, TAMD31B
• Volvo Penta TMD31A, TMD31B
• Volvo Penta BB740A
• Volvo Penta D2002AG
• Volvo Penta D2003AG
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD67C
• Volvo Penta TMD22A