854889 Countershaft | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta countershaft from the Marine Propulsion group, weighing 1.731 kg and listed for 58 applications across the AD, D, TMD, B, DP and SP series. It is one of three countershafts in this listing group, alongside 854611 and 854612, and the source gives nothing beyond the part number to tell them apart, so order against your drive's parts list.

🚤 Compatibility

• Engine Family: AD, D, TMD, B, DP, SP, MS, TAMD, MD

Full model list at the end of this description.

⚙️ Key Features

• 1.731 kg
• 58 applications
• Fits AD, D, TMD, B, DP and SP series
• Distinct from countershafts 854611 and 854612 in this group

🔌 Function

Carries drive between the input and output gears inside the drive unit.

⚠️ Common Signs of Failure

• Whine or growl from the drive that tracks engine speed
• Splines worn, twisted or rounded at the tops
• Journals scored, blued or flaking
• Bright metal in the drive oil when it is drained
• Play or backlash that has grown since the last check

🛠️ Service Notes

• Countershafts 854611 and 854612 also appear in this listing group, so confirm the number before ordering
• Renew the bearings and seals with the shaft and refill with fresh drive oil

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 740B, 500A, 501A, 501B, 570A, 572A, 430A, 430B, 431A, 431B, 432A, 434A, 230A, 230B, 250A, 250B, 251A, 570, 500B, 500, 571A, 430
• Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
• Volvo Penta SP-C, SP-E, SP-A2, SP-C1, SP-A, SP-A1
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
• Volvo Penta B230, B230E, B230F, B230FB, B230FX
• Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta AD41B, AD41BJ
• Volvo Penta D41B
• Volvo Penta MD31A
• Volvo Penta MS4B
• Volvo Penta TAMD41B
• Volvo Penta TMD41B