21664109 Six Point Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta TAD732GE and TAD733GE Cooling-System Six-Point Screw - Part Number: 21664109

A high-strength six-point screw used at schematic position 9 in the radiator and fan-shroud mounting system of Volvo Penta TAD732GE and TAD733GE EDC4 engines.

⚙️ Key Features

• EDC4 cooling-system fastener

• Schematic position 9

• Six-point drive head

• Correct OEM length, thread and strength grade

• Used in the radiator and shroud support assembly

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Current OEM reference: 21664109

OEM / Related Numbers:

• 21664109

• 21883422 - Radiator

• 22080936 - Charge-air cooler

• 21663749 - Left fan shroud

• 21188784 / 21188785 - Mounting brackets

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

• TAD732GE EDC4

• TAD733GE EDC4

• Cooling-system schematic position 9

🔌 Function

The screw clamps the cooling-system support components together at the designed preload.

Common signs of failure or damage:

• Rounded or damaged drive head

• Stretched or corroded threads

• Fastener unable to hold torque

• Shroud or bracket movement

• Incorrect replacement grade causing loosening

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging