20970527 Cylinder Head | Genuine Volvo Penta Part

🔧 Product Description

Complete cylinder-head assembly for the Volvo Penta TAD550/TAD551 common-rail engine family. The catalogue identifies the valves, guides, spring hardware, valve cover, oil separator and graded head gaskets used around this head.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD550GE
• Volvo Penta TAD551GE

• Engine Family: TAD
• HP Range: Approximately 220 HP
• Year Range: Approximately 2000s-2010s

⚙️ Key Features

• Complete cylinder-head assembly, 77.5 kg
• Listed for 2 TAD applications
• Valves, guides, spring hardware, valve cover, oil separator and head gaskets are catalogued around this head

🔌 Function

Seals the top of the cylinders and carries the valves, injector, valve mechanism and internal coolant/oil passages.

⚠️ Common Signs of Failure

• Low compression, hard starting or persistent misfire
• Coolant or oil leakage at the head joint
• Cracked casting, damaged valve seats or injector bore
• Recurring overheating or head-gasket failure

🛠️ Service Notes

• Head gaskets for this engine are graded, so measure and select the correct grade rather than assuming one thickness
• At 77.5 kg this is a lifting-gear item

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20580074 and 20580078 valve-guide references
• 976013 O-ring
• 11700347 valve spring
• 20847155 valve retainer
• 11700345 valve collet
• 20840807 thrust washer
• 20840772 lock ring
• 20758481 inlet valve
• 20755883 exhaust valve
• 21455723 valve cover
• 20972267 valve-cover gasket
• 20840801 gasket
• 20933359 oil separator
• 20970717; 20970720; 20970725 graded cylinder-head gaskets
• 21448926 rocker arm
• 20913851 adjusting screw

Other-Brand OEM Numbers

• Deutz-related cylinder-head reference: 04293366

📦 Condition

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