3857010 Upper Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta upper gear, supplied complete, for the SX 1.79, 1.89, 1.97 and 2.18 ratios and the DPS 2.32 ratio. It weighs 28.03 kg and is listed for 9 applications across the DP and SX series, and it supersedes 3801181 and 3855700 — catalogued earlier as a gear housing and a reman upper gear.

🚤 Compatibility

Typically suits:

• Volvo Penta DP-S1
• Volvo Penta DP-SM
• Volvo Penta DP-SMTD3
• Volvo Penta SX-RT2
• Volvo Penta SX-C2
• Volvo Penta SX-CT2
• Volvo Penta SX-M
• Volvo Penta SX-M1
• Volvo Penta SX-MTD

• Engine Family: DP, SX

⚙️ Key Features

• Covers SX 1.79, 1.89, 1.97 and 2.18
• Covers DPS 2.32
• Supplied complete
• 28.03 kg — a heavy assembly needing mechanical lifting
• Supersedes 3801181 and 3855700

🔌 Function

Forms the complete upper gear set of the drive, taking the engine's drive through the transom and turning it down into the lower unit at the ratio it is built for.

⚠️ Common Signs of Failure

• Whine or howl from the upper drive under load
• Vibration or rumble through the transom
• Oil leaking from the upper unit, or emulsified oil on the drain
• Metallic glitter in the drive oil
• Play, roughness or notchiness in the shafts

🛠️ Service Notes

• The lower ratios are covered by upper gear 3857007 — check the ratio marked on your drive before ordering, as the two units split the range between them
• One of the numbers it replaces was listed as a reman upper gear while this listing is not marked reman, so confirm which you are being offered
• At 28 kg it needs mechanical lifting; renew the transom seals and fill with fresh drive oil

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3857010 → Supersedes 3801181

OEM / Related Numbers

• 3855700 earlier number superseded by this part
• 3801181 earlier number superseded by this part

📦 Condition

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