21517500 Flywheel | Genuine Volvo Penta Part

🔧 Product Description

A genuine flywheel used on Volvo Penta D3 marine diesel engines. This later flywheel supersedes 21317215 and earlier 3818392 and is used with ring gear 21517489 from the documented engine serial break. It provides rotational inertia, starter-ring support and the drive interface for the specified coupling or transmission arrangement.

🚤 Compatibility

• Engine Family: D
• HP Range: 110-220 HP
• Year Range: Approximately 2004 - 2020
• Serial Range: SN2003018762-

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta D3 flywheel
• Current replacement for 21317215 and 3818392
• Used with later ring gear 21517489 where the serial break applies from serial number 2003018762 onwards
• Precision-machined crankshaft and coupling mounting faces
• Designed for the complete D3 110HP to 220HP marine family
• Engine type: 2.4L inline five-cylinder common-rail marine diesel
• Also supersedes Volvo part number 3883232

🔌 Function

Smooths crankshaft speed between combustion events, supports the starter ring gear and transfers engine torque to the coupling, transmission or sterndrive interface.

⚠️ Common Signs of Failure

• Drivetrain vibration or abnormal resonance
• Starter grinding from ring-gear or flywheel damage
• Cracks around the crankshaft or coupling bolt holes
• Fretting, loose bolts or damaged mounting faces
• Excessive run-out or imbalance after overheating or impact

🛠️ 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

• 21517500 → Supersedes 21317215 → Supersedes 21316609

OEM / Related Numbers

• 21317215 earlier number superseded by this part
• 3818392 earlier number superseded by this part
• 21316609 earlier number superseded by this part
• 21817215 - related casting / identification reference encountered on some flywheels
• 21517489 - later-production ring gear from engine serial number 2003018762
• 3818641 - earlier ring gear up to engine serial number 2003018761
• 9454743 - flywheel mounting screw
• 21429352 - adapter ring
• 21416069 - flexible coupling
• 21485410 - flexible coupling

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D3-110I-C, D3-130I-C, D3-220I-G, D3-130A-A, D3-160A-A, D3-130A-B, D3-160A-B, D3-130A-C, D3-160A-C, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-140A-F, D3-170A-F, D3-200A-F, D3-220A-F, D3-140I-F, D3-140A-G, D3-170A-G, D3-200A-G, D3-220A-G, D3-140I-G, D3-190A-B, D3-190A-C, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-110I-F, D3-150I-F, D3-170I-F, D3-200I-F, D3-220I-F, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-160I-C, D3-190I-C, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H