21147963 Starter Pinion | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta starter pinion for compatible D5A and D7A industrial-engine starter motors. The pinion travels along the starter drive to engage the flywheel ring gear during cranking, then disengages after the engine starts.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta starter-drive pinion
• Current replacement for earlier references 20460116 and 72220
• Correct tooth profile and starter-drive dimensions
• Used across documented D5A and D7A industrial applications
• Starter model, voltage, tooth count and engine serial number must be matched
• Engine type: Volvo Penta D5 and D7 inline-six industrial diesel

🔌 Function

Engages the flywheel ring gear to transmit starter-motor torque to the crankshaft during engine cranking.

⚠️ Common Signs of Failure

• Starter motor spins without turning the engine
• Grinding, chattering or repeated failure to engage
• Rounded, chipped or heavily burred pinion teeth
• Pinion remains engaged after the engine starts
• Abnormal wear on the flywheel ring gear or starter drive

🛠️ Service Notes

• Current replacement for two earlier references, 20460116 and 72220 - if either old number appears on your parts list, this is the direct-fit pinion
• Covers a broad span of D5/D7/TD/TAD/MD engines under one listing - confirm the starter model, voltage and tooth count stamped on your actual starter before ordering, since several different physical starters sit under this one part number

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21147963 → Supersedes 20460116 → Supersedes 20499753 → Supersedes 20505170

OEM / Related Numbers

• 20460116 earlier number superseded by this part
• 20499753 earlier number superseded by this part
• 20505170 earlier number superseded by this part

📦 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 TAD731GE MECH, TAD731GE EDC4
• Volvo Penta TD520GE, TD520VE
• Volvo Penta TD720GE, TD720VE PP
• Volvo Penta TAD420VE
• Volvo Penta TAD532GE EDC4
• Volvo Penta TAD620VE
• Volvo Penta TAD733GE EDC4
• Volvo Penta TD420VE