20459991 Six Point Screw | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta six point screw used in the engine fastening position. It is supplied as an individual service component under part number 20459991 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine arrangement are serviced separately unless explicitly stated.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta TD420VE
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-B TA
• Volvo Penta D7C-TA
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD420VE
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, TD, TAD, MD

⚙️ Key Features

• Six point screw with the correct drive and clamping geometry for a serial-controlled engine fastening position
• 0.129 kg
• Listed for 15 applications across D, TD, TAD and MD series engines
• Supersedes 20460932, catalogued earlier as a screw
• Engine group
• 2 used per assembly

🔌 Function

Secures the designated engine component with the correct six-point drive and clamping geometry.

⚠️ Common Signs of Failure

• Screw found loose or backed off at its position
• Knock or vibration from the joint the screw clamps
• Drive recess rounded so a socket no longer bites
• Thread galled or seized, shearing on removal
• Screw found stretched or necked on inspection

🛠️ Service Notes

• A workshop list quoting 20460932 is filled by this number
• Use a six-point socket rather than a twelve-point one and tighten to the specified torque and sequence

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20459991 → Supersedes 20460932

OEM / Related Numbers

• 20460932 earlier number superseded by this part

📦 Condition

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