3857431 Aftermarket Volvo Penta Pivot Pin | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Volvo Penta SX-M / DP-SM Trim-Cylinder Pivot Pin - Part Number: 3857431

A replacement pivot pin for the hydraulic trim-cylinder mounting used on Volvo Penta SX-M and DP-SM transom assemblies. The pin forms the mechanical hinge between the trim ram and mounting structure and is used with the matching bushings, washers, circlips and protective caps.

⚙️ Key Features

• Direct replacement for Volvo Penta 3857431

• Used with trim cylinders 3857470 and 3857471

• Two pivot pins are used in the complete 3885196 cylinder installation

• Works with bushings 3853423/3853424, washers 3857588, clips 3857521 and caps 3857522

• Precision-machined load-bearing trim-cylinder mounting component

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3857431 → Current confirmed pivot-pin reference

• No later Volvo Penta supersession has been confirmed

OEM / Related Numbers:

• 3857431

• 03857431

• RM3857431

• REC3857431

• 3853423

• 3853424

• 3857588

• 3857521

• 3857522

Aftermarket / Verified Equivalents:

• Recmar / aftermarket reference: REC3857431 / RM3857431

🚤 Compatibility

Commonly used on:

• Volvo Penta SX and SX Cobra transom assemblies

• Volvo Penta SX-M / DP-SM trim-cylinder systems using 3857470 or 3857471

Typically suits:

• Engine / drive models:

• TSK SX-M, SX-MACLT, SX-MBAC, SX-MDA, SX-MDB, SX-MDC, SX-MHP and SX-MLT

• SX-C, SX-R, SX-S and DP-SM assemblies updated with kit 3885196

• HP Range: Drive application; not engine-horsepower specific

• Engine / Drive Type: Mechanical pivot mounting for hydraulic sterndrive trim cylinders

• Year Range: Approximately 1994-2006

• Serial / Identification Range: Confirm the transom-shield model and the 3857470/3857471 cylinder arrangement. The pin is not interchangeable with later SX-A/DPS-A hardware.

🔌 Function

Provides the accurately aligned hinge point that transfers hydraulic trim-cylinder force into the sterndrive mounting structure while allowing controlled angular movement.

Common signs of failure or replacement requirement:

• Visible pin corrosion, pitting or grooving

• Excessive side movement at the cylinder eye

• Clunking during trim operation

• Seized pin or difficult cylinder removal

• Damaged circlip grooves or worn mating bushings

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging