20940389 Gear | Genuine Volvo Penta Part

🔧 Product Description

Precision rotating drive component used in the tad761ve flywheel housing, timing gear and pto drive assembly. It maintains the specified tooth or belt profile, offset and drive relationship.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD
• HP Range: Approximately 300 HP
• Year Range: Approximately 2000s-2010s

Full model list at the end of this description.

⚙️ Key Features

• Gear in the flywheel housing, timing gear and PTO drive on TAD761VE
• 0.567 kg
• Listed for 21 applications across D, TD, TAD and MD engines
• Supersedes 20555182

🔌 Function

Transfers timed or auxiliary rotational drive through the designated gear train while maintaining the specified mesh and centre distance.

⚠️ Common Signs of Failure

• Whine or howl from the gear train that follows engine speed
• Backlash felt at the driven component
• Teeth chipped, pitted or worn to a step
• Metallic glitter in the oil or on the filter element

🛠️ Service Notes

• Gear 20916167 shares the same 21 applications and families and weighs 0.659 kg - the two are close enough that ordering must be by part number
• Check backlash against specification after fitting

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20940389 → Supersedes 20555182 → Supersedes 20460505

OEM / Related Numbers

• 20555182 earlier number superseded by this part
• 20512174 earlier number superseded by this part
• 20460505 earlier number superseded by this part
• 20984433 idler gear
• 20923528 oil filter
• 20797188 retaining screw
• 20459941 plug
• 993605 gasket
• 995377 flange nut
• 20939127 hexagon screw

📦 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 TAD420VE
• Volvo Penta TAD520VE
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD750VE
• Volvo Penta TAD760VE
• Volvo Penta TD420VE