21034598 Flywheel | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta flywheel for use in the Volvo Penta TAD734GE crankshaft and flywheel assembly. It provides rotational inertia, the starter-ring interface and the specified coupling or drive mounting surface at the rear of the crankshaft.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD734GE

• Engine Family: TAD
• Serial Range: SN-5310860899

⚙️ Key Features

• Genuine precision-balanced flywheel
• Correct crankshaft bolt pattern and offset
• Matched starter-ring and coupling interface
• Maintains rotational inertia and driveline alignment
• Ring gear and fasteners are separate unless listed
• Engine type: Volvo Penta 7-litre inline six-cylinder generator-drive diesel

🔌 Function

Stores rotational energy to smooth engine speed, carries the starter ring and transmits crankshaft torque to the connected drivetrain or generator coupling.

⚠️ Common Signs of Failure

• Cracks, heat checking or damaged mounting face
• Starter-ring tooth damage or poor starter engagement
• Vibration caused by run-out or imbalance
• Loose flywheel fasteners or fretting at the crankshaft flange
• Damaged coupling threads or pilot location

🛠️ 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 Supersession Chain

• 21510858 → Later replacement for 21034598

OEM / Related Numbers

• Later flywheel 21510858
• Starter ring 21033328
• Guide pin 21033924
• Flywheel screws 20460088 / 21462604

Other-Brand OEM Numbers

• VOE21034598

📦 Condition

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