3857007 Upper Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta upper gear, supplied complete, for the SX 1.43, 1.51, 1.60 and 1.66 ratios and the DPS 1.68, 1.78 and 1.95 ratios. It weighs 31.66 kg and is listed for 11 applications across the DP and SX series, and it supersedes 3801180, 3856181 and 3854378 — catalogued earlier as a housing, a gear housing and a reman upper gear.

🚤 Compatibility

Typically suits:

• Volvo Penta DP-S1
• Volvo Penta DP-SM
• Volvo Penta DP-SMTD
• Volvo Penta DP-SMTD1
• Volvo Penta SX-RT2
• Volvo Penta SX-C2
• Volvo Penta SX-CT2
• Volvo Penta SX-M
• Volvo Penta SX-M1
• Volvo Penta SX-MTD
• Volvo Penta SX-MTD3

• Engine Family: DP, SX

⚙️ Key Features

• Covers SX 1.43, 1.51, 1.60 and 1.66
• Covers DPS 1.68, 1.78 and 1.95
• Supplied complete
• 31.66 kg — a heavy assembly needing mechanical lifting
• Supersedes 3801180, 3856181 and 3854378
• Also supersedes Volvo part number 3855699

🔌 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 that changes with load
• Rumble or vibration through the transom under power
• Oil leaking from the upper unit, or water in the oil
• Bright metal or glitter in the drive oil
• Roughness, notchiness or play felt in the shafts

🛠️ Service Notes

• The higher ratios are covered by upper gear 3857010 — check the ratio marked on your drive before ordering
• One of the numbers it replaces was listed as a reman upper gear while this listing is not marked reman, so confirm which of the two you are being quoted
• At 31.66 kg it needs mechanical lifting and the drive supported; renew the transom seals and the drive oil on reassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3857007 → Supersedes 3801180

OEM / Related Numbers

• 3856181 earlier number superseded by this part
• 3854378 earlier number superseded by this part
• 3801180 earlier number superseded by this part

📦 Condition

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