Volvo Penta Upper Vertical Shaft Ring 3860106

Part Details

• Part Number: 3860106
• Brand: Volvo Penta
• Official Product Type: Ring Upper Vertical Shaft
• Supersedes: No confirmed superseding number on record
• Replaced By: 3860106 is currently an active part number
• System: Sterndrive upper gear housing / vertical shaft assembly
• Diagram Position: Upper vertical shaft stack confirm exact position against the applicable drive schematic before ordering

Compatible Applications

Fitment is drive-model and serial-number specific. Confirm against your drive’s upper vertical shaft parts diagram before ordering.

• SX-A
• SX-D
• DPS-A
• DPS-B
• DPS-B1
• DPS-D
• DPS-D1
• XDP-B
• XDP-D3
• FWD-B1 (Forward Drive)
• FWD-B2 (Forward Drive)
• FWD-D1 (Forward Drive)
• FWD-D2 (Forward Drive)

Serial Number Fitment Notice

Always verify by complete drive designation and serial number not just the boat’s engine model. Several similar-looking rings are used within Volvo Penta upper gear and vertical shaft assemblies and may differ by drive version or production range. When in doubt, cross-reference the schematic before ordering.

When This Part Needs Replacement

Replace the ring when inspection reveals any of the following:

• Bent, distorted, cracked, or visibly worn
• Scored or damaged during drive disassembly
• No longer retaining or locating its adjoining component correctly
• Specified for replacement during upper-gear or vertical shaft servicing

Installation Notes

Identify the ring’s exact schematic position before removing the original component. Inspect surrounding shaft, bearings, spacers, and retaining components for wear. Related components in the same upper vertical shaft stack include spacer ring 3860273, locking clip 3852295, O-ring 949656, and shaft 3852292. Install according to the Volvo Penta workshop procedure for the applicable drive model.

Dimensions & Weight

• Weight: Approximately 56 g (0.056 kg)
• Form factor: Small retention ring confirm exact dimensions against schematic position

Related Parts

• 3860273 Spacer Ring, upper vertical shaft
• 3852295 Locking Clip
• 949656 O-Ring
• 3852292 Vertical Shaft

Parts Desk Insight

This ring is used across several drive families, but that doesn’t make every upper shaft assembly identical. The most common ordering mistake is selecting by appearance rather than drive serial number and diagram position a nearby spacer or retaining ring can look nearly identical. Confirming drive family and schematic location before you order saves a return trip.