21514065 Flywheel | Genuine Volvo Penta Part

🔧 Product Description

A heavy-duty flywheel used on D13-based Volvo Penta industrial installations with the applicable automatic-transmission package. The assembly is commonly specified with ring gear 20711957 and a 153-tooth starter interface, SAE No. 1 housing geometry, fourteen crankshaft mounting holes and a 6306SSC pilot bearing arrangement.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1683VE

• Engine Family: TAD, TWD
• HP Range: Approximately 500-800 HP
• Year Range: Approximately 2008 - 2020 production-era applications

⚙️ Key Features

• Heavy-duty D13-pattern flywheel
• 153-tooth starter ring-gear configuration
• SAE No. 1 transmission-housing application
• Fourteen crankshaft mounting holes
• Used with ring gear 20711957 and 6306SSC pilot-bearing arrangement
• Engine type: 12.8L inline six-cylinder turbocharged industrial diesel

📋 Kit Contents

• kit

🔌 Function

Provides rotational inertia, supports the starter ring gear and transfers crankshaft torque to the automatic-transmission coupling while maintaining concentricity between the engine and transmission.

⚠️ Common Signs of Failure

• Starter engagement noise or damaged ring-gear teeth
• Vibration caused by imbalance, run-out or incorrect installation
• Cracks around the crankshaft mounting pattern
• Pilot-bearing wear or transmission-input misalignment
• Fretting, loose fasteners or damaged mounting faces

🛠️ Service Notes

• Inspect the ring gear teeth for chipping, burring and one-sided wear before refitting — a damaged tooth ring will chew up a new starter pinion
• Check the clutch or damper mating face for scoring, heat cracking and blueing, and check the crankshaft rear seal and any spigot bearing while access is good
• Clean the crankshaft flange and the flywheel face so both are dry and free of oil, old sealant and burrs; a trace of oil on that joint is enough to let the flywheel work loose
• Locate the flywheel the correct way round on its dowel or locating feature, and renew the bolts wherever the manual calls them single-use
• Tighten the bolts progressively in a criss-cross pattern to the figure and stages given in the workshop manual for your engine, and never lever against the ring gear teeth to hold it

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20711957 - ring gear
• 6306SSC - pilot-bearing reference

Aftermarket / Verified Equivalents

• Goliath Truck Parts: GTP02523

📦 Condition

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