21344803 Hex Socket Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hexagon socket screw used in the rocker, valve-bridge or related valve-mechanism assembly on TAD1350GE, TAD1380GE, TAD1381GE and TAD1382GE engines. Correct screw length and tightening procedure are required to preserve valve-train alignment and adjustment.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1350GE
• Volvo Penta TAD1351GE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1384-85VE-IWP

• Engine Family: TAD

⚙️ Key Features

• Hexagon socket screw in the rocker, valve-bridge or valve-mechanism assembly on TAD1350GE, TAD1380GE, TAD1381GE and TAD1382GE engines
• 0.018 kg
• Supersedes 20731127
• Listed for 9 applications across the TAD range
• Quantity varies by assembly, most commonly 12

🔌 Function

Clamps the rocker, valve-bridge or related valve-mechanism component in place, holding the alignment the valve train needs to stay in adjustment.

⚠️ Common Signs of Failure

• Ticking or tapping from the valve gear
• Valve clearances drifting out of adjustment between services
• Socket head found rounded or the thread found pulled
• Screw found slack, stretched or bent on strip-down
• Uneven wear across a valve bridge or rocker pad where alignment has been lost

🛠️ Service Notes

• Screw length matters here - check it against the illustrated position and follow the tightening procedure, or valve-train alignment is lost
• Reset and check valve clearances after any work on this assembly

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21344803 → Supersedes 20731127

OEM / Related Numbers

• 20731127 earlier number superseded by this part
• 20728004 - leaf spring
• 3183207 - valve bridge references
• 20509561 - valve bridge references
• 21168206 - yoke
• 85111158 - shim kit

📦 Condition

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