21124888 Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta transom-shield update package for SX-MPH installations. It replaces the earlier shield reference and includes the complete shield plus the larger water-inlet hose needed to connect the 1-1/4-inch shield fitting to the vessel-side cooling-water connection.

🚤 Compatibility

• Year Range: Approximately 1999 onward for the applicable shield generation

⚙️ Key Features

• Genuine Volvo Penta complete transom-shield kit
• Two major individually numbered components
• Updates earlier transom shield 3857642
• Includes revised water-intake hose
• Designed for SX-MPH installations
• Engine type: Volvo Penta SX-M family sterndrive transom assembly

📋 Kit Contents

• 1 x complete transom shield assembly - Volvo Penta 3817147
• 1 x 1-1/4-inch water intake hose - Volvo Penta 3842985

🔌 Function

The shield supports the sterndrive at the transom, provides steering and trim attachment points and routes cooling water through the revised inlet hose.

⚠️ Common Signs of Failure

• Transom shield is corroded, cracked or damaged
• Gimbal or steering support is worn beyond repair
• Water-inlet connection must be updated
• A complete sterndrive transom rebuild is required
• Earlier shield 3857642 is being replaced

🛠️ Service Notes

• Check the kit contents against the parts list for your engine before you start, and confirm it is the kit specified for your engine's serial number — kit contents change between engine versions
• Lay the contents out and identify every item against the assembly as it comes apart, so nothing is left over at the end
• Use all the new parts supplied and discard the old ones, even where an old item still looks serviceable; the kit is packaged as a complete replacement for what it covers
• While access is open, clean and inspect the mating parts that are not in the kit — new seals, gaskets or wearing parts fitted to a worn housing, shaft or face will not last
• Tighten, set and adjust to the figures given in the workshop manual for your engine, and renew any single-use fasteners or locking devices the kit provides

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21124888 → Supersedes 3857642

OEM / Related Numbers

• 3857642 earlier number superseded by this part
• 3817147 related reference
• 3842985 related reference

📦 Condition

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