3857675 Shaft | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta shaft from the Marine Propulsion group, weighing 3.130 kg and listed for four SX applications. It supersedes 3852271, which was catalogued as a propeller shaft.

🚤 Compatibility

Typically suits:

• Volvo Penta SX-M
• Volvo Penta SX-M1
• Volvo Penta SX-MTD
• Volvo Penta SX-MTD3

• Engine Family: SX

⚙️ Key Features

• 3.130 kg
• Four SX applications
• Supersedes 3852271, listed as a propeller shaft
• Marine Propulsion group

🔌 Function

Carries the drive out to the propeller, taking the full torque and thrust while running in its bearings and seals.

⚠️ Common Signs of Failure

• Vibration that comes in with revs and will not balance out
• Shaft visibly bent, or run-out found when it is turned in vee blocks
• Groove worn into the shaft where the seals ride
• Splines worn, twisted or rounded
• Bearing surfaces scored, pitted or blued

🛠️ Service Notes

• The old number was catalogued as a propeller shaft, which is what this is, so an older list calling for 3852271 is asking for the same item
• Always renew the seals and check the bearings when the shaft comes out, and inspect the splines on the mating part
• Take line and fishing gear off the shaft before it does the seal damage, as that is the usual cause of a wet lower unit

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3857675 → Supersedes 3852271

OEM / Related Numbers

• 3852271 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Recmar: REC3857675

📦 Condition

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