20450790 Flywheel Housing | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flywheel housing from the Engine group, weighing 19.33 kg and listed for 23 fitments across the D, TD, TAD and MD series. It is the machined casting that closes the flywheel end of the engine and carries the bolted interface to whatever is driven from it.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• Flywheel housing casting
• 19.33 kg
• Engine group
• Listed for 23 fitments across the D, TD, TAD and MD series

🔌 Function

Encloses the flywheel and provides the machined structural interface between the rear of the engine and the transmission, coupling or driven equipment.

⚠️ Common Signs of Failure

• Cracks, impact damage or oil leakage visible on the casting
• Machined bores or faces worn, picked up or out of alignment
• Threaded holes stripped, or locating dowels and their holes damaged
• Repeated rear main seal or coupling failures that keep coming back after replacement
• Damage found during a major overhaul that cannot be machined out

🛠️ Service Notes

• Check bore and face run-out against the crankshaft before condemning the housing or refitting it - misalignment here is what shows up later as a rear main seal or coupling that will not stay serviceable
• At 19.33 kg this is a lifting job, and the flywheel and rear seal have to come off first

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20405646 - Related housing bushing

📦 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 TAD420VE
• Volvo Penta TAD520VE
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD750VE
• Volvo Penta TAD760VE
• Volvo Penta TD420VE
• Volvo Penta TD520VE
• Volvo Penta TD720VE PP