20451738 Hex Socket Sunk Screw | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta hex. socket sunk screw used in the Volvo Penta engine assembly. It is supplied as an individual service component under part number 20451738 and is intended to restore the original fit, alignment, sealing, support or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in an parts list for your engine are serviced separately unless explicitly stated.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD
• HP Range: Approximately 380 HP

Full model list at the end of this description.

⚙️ Key Features

• Hex socket sunk screw with a flush or recessed head
• 16 mm long
• 0.163 kg
• Listed for 44 applications across D, TD, TAD and MD series engines
• The published weight is far higher than other 16 mm socket screws in this group, such as 20450822 at 0.005 kg, so order by part number rather than by expected size

🔌 Function

Secures the component with a flush or recessed head at the specified mounting position.

⚠️ Common Signs of Failure

• Screw found loose or backed off at its position
• Component it secures shifting or rattling under vibration
• Socket recess rounded out so a key no longer bites
• Corroded or seized thread that shears on removal
• Countersink seat found distorted where the head has pulled in

🛠️ Service Notes

• Order by part number - the published weight does not sit with a 16 mm countersunk screw, so it is no guide to size
• Clean the countersink seat before fitting so the head pulls down flush rather than standing proud

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAD520GE, TAD520VE
• Volvo Penta TAD530GE MECH, TAD530GE EDC4
• Volvo Penta TAD531GE MECH, TAD531GE EDC4
• Volvo Penta TAD720GE, TAD720VE
• Volvo Penta TAD721GE, TAD721VE
• Volvo Penta TAD722GE, TAD722VE
• Volvo Penta TAD730GE MECH, TAD730GE EDC4
• Volvo Penta TAD731GE MECH, TAD731GE EDC4
• Volvo Penta TAD750GE, TAD750VE
• Volvo Penta TD520GE, TD520VE
• Volvo Penta TD720GE, TD720VE PP
• Volvo Penta TAD420VE
• Volvo Penta TAD532GE EDC4
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TAD751GE
• Volvo Penta TAD760VE
• Volvo Penta TD420VE