21344750 Hexagon Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hexagon-head screw used at a specified engine assembly position. The fastener is selected for exact diameter, pitch, grip length, strength class and flange/washer arrangement; it must be matched against the illustrated parts catalogue and not replaced by a visually similar general fastener.

⚙️ Key Features

• Hexagon-head screw for a specified engine assembly position
• 0.272 kg
• Supersedes 1543316, catalogued earlier simply as a screw
• Listed for 27 applications across the D, TWD and TAD ranges

🔌 Function

Clamps the joint at its assigned engine position, providing the specified diameter, grip length and strength class for that fastening.

⚠️ Common Signs of Failure

• Joint weeping or a component moving where it should be solid
• Repeated loosening at the same fastening
• Head or flats found rounded, or the thread found pulled
• Screw found stretched, bent or corroded in the thread
• Mating faces found fretted where clamp load has been lost

🛠️ Service Notes

• Match diameter, pitch, grip length, strength class and washer arrangement to the illustrated position - a visually similar general fastener is not a substitute
• It replaces 1543316, so that older number crosses to this screw

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21344750 → Supersedes 1543316

OEM / Related Numbers

• 1543316 earlier number superseded by this part

📦 Condition

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