3854814 Gear Set | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta gear set for the 1.43:1 ratio, from the Marine Propulsion group, weighing 2.07 kg and listed for 12 applications on SX drives. It supersedes part number 3855274.

🚤 Compatibility

Typically suits:

• Volvo Penta SX-RT2
• Volvo Penta SX-C
• Volvo Penta SX-C1
• Volvo Penta SX-C2
• Volvo Penta SX-CT
• Volvo Penta SX-CT1
• Volvo Penta SX-CT2
• Volvo Penta SX-M
• Volvo Penta SX-M1
• Volvo Penta SX-MTD
• Volvo Penta SX-MTD3
• Volvo Penta SX-RT1

• Engine Family: SX

⚙️ Key Features

• For the 1.43:1 ratio
• 2.07 kg
• Supersedes 3855274
• 12 listed applications on SX drives

🔌 Function

Provides the matched pinion and gear pair that transmits drive through the unit at its specified reduction, so tooth contact and backlash stay correct.

⚠️ Common Signs of Failure

• Whine or howl that changes with load and comes from the drive
• Chipped or pitted teeth found on strip-down
• Bright metal or gear glitter on the drain plug
• Clunk or backlash felt at the propeller shaft
• Overheating gear oil that smells burnt

🛠️ Service Notes

• Gears are supplied as a matched set - never mix a new pinion onto an old gear
• Shimming decides the tooth contact, and shims from 0.002 to 0.016 inch thick are listed in this same group for setting it
• Ratio must match the housing and propeller package fitted

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3854814 → Supersedes 3855274

OEM / Related Numbers

• 3855274 earlier number superseded by this part

📦 Condition

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