21147963 Starter Pinion | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D5/D7 Starter Motor Pinion - Part Number: 21147963

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.

⚙️ 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

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21147963 → Supersedes 20460116

• 20460116 → Supersedes 72220

• 72220 (earlier OEM reference)

OEM / Related Numbers:

• 21147963

• Associated starter motor, solenoid, drive spring and retaining hardware are serviced separately

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D5A and D7A starting systems

Typically suits:

• Engine / drive models:

• D5A-A T

• D5A-A TA

• D5A-B TA

• D7A-A T

• D7A-A TA

• D7C-A TA

• TD520GE

• TAD530GE

• TD720GE

• TAD720VE

• TAD730GE

• TAD731GE

• HP Range: Engine-rating dependent

• Engine Type: Volvo Penta D5 and D7 inline-six industrial diesel

• Year Range: Engine-generation and starter-version controlled

• Model / Serial Note: Includes the D5A-B TA catalogue range ending at serial 10787691; confirm starter manufacturer, voltage and pinion tooth count.

🔌 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

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging