21955937 Six Point Socket Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta six point socket screw manufactured for the original engine, drive or vessel-system assembly.

🚤 Compatibility

• Engine Family: D, VMM
• HP Range: 110-480 HP

Full model list at the end of this description.

⚙️ Key Features

• Six point socket screw
• 0.002 kg
• 112 applications across D series engines and VMM installations

🔌 Function

Clamps a joint together, driven by a six-point socket key.

⚠️ Common Signs of Failure

• Socket flats rounding out under the key
• Screw found loose or backed out of its thread
• Head corroded, or the socket packed with salt or paint so a key will not seat
• Thread galled or stripped on removal

🛠️ Service Notes

• Use a socket or key that engages the head fully and squarely; a worn or part-inserted tool rounds the flats and turns a simple job into a drilling job
• Clean the threads and the seating face, and check the screw for stretched or corroded threads and a damaged head — renew rather than reuse anything doubtful
• Where the original was fitted with a thread-locking or sealing compound, or with a washer or seal, fit the same again; many of these screws seal a fuel or oil passage as well as clamping it
• Tighten to the figure and sequence given in the workshop manual for your engine, working evenly across a multi-screw joint rather than pulling one screw fully down at a time
• A smear of a suitable marine anti-seize on exposed threads makes the next removal far easier, but keep it off threads meant to be locked or sealed

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21955937

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435D-F, D6-400A-F, D6-435I-F
• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-J MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C7-B MP, D13C8-B MP
• Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
• Volvo Penta D9A2J, D9A2G, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E, D9A2L MH
• Volvo Penta D3-110I-H, D3-140A-H, D3-170A-H, D3-200A-H, D3-220A-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H
• Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11B2-A MP, D11B1-A MP
• Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A4-A MP, D8A1-A MP, D8A3-A MP
• Volvo Penta D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta VMM-A