20799056 Bracket | Genuine Volvo Penta Part

🔧 Product Description

Structural support or retaining component used in the common-rail d5/d7 cylinder-head and valve mechanism. It maintains the specified component position, load path and service clearance under engine vibration.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD650VE
• Volvo Penta TAD660VE

• Engine Family: TAD
• HP Range: Approximately 320 HP
• Year Range: Approximately 2000s-2010s

⚙️ Key Features

• Bracket, 0.433 kg
• Supersedes 20799063
• Cylinder-head and valve-mechanism mounting position
• Listed for 2 TAD applications

🔌 Function

Opens and closes the cylinder-head gas port at the correct point in the engine cycle and seals against the valve seat during compression and combustion.

⚠️ Common Signs of Failure

• Low compression or leakage past the valve seat
• Hard starting, rough running or reduced power
• Burnt, bent, recessed or pitted valve face
• Incomplete gas sealing or restricted cylinder breathing

🛠️ Service Notes

• Offer the bracket up and start every fastener by hand before tightening any of them, so the component is not pulled into a strained position
• Check the mating faces are clean, flat and free of corrosion scale — a bracket that does not sit flat will work loose and let the component move
• Renew self-locking nuts, lock washers, tab washers or thread-locking compound wherever the original assembly used them, and tighten to the figure given in the workshop manual for your engine
• Where the bracket carries a rubber mount or bush, renew that at the same time rather than reusing a perished one
• On brackets in the inlet and exhaust area, never force alignment to make the holes line up — cure the misalignment at its source, or the bracket and the component it holds will both crack

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20799056 → Supersedes 20799063

OEM / Related Numbers

• 20799063 earlier number superseded by this part
• 23095755 later cylinder-head reference
• 20849976 inlet valve seat
• 20849979 exhaust valve-seat insert
• 20459855 valve-stem seal
• 20459851 valve spring
• 20840747 spring disc
• 20459857 valve cotter
• 20840807 thrust washer
• 20792103 snap ring
• 20850047; 20850048; 20850049 graded head gaskets

OEM Reman Alternatives

• 3801133 and 3801894 exchange/new cylinder-head references

📦 Condition

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