991608 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flange screw marked M12x50, weighing 0.023 kg and listed for 30 applications across the D and IPS series. Order it on the marked thread size — the M10X50 screw 991607 sits alongside it at a published 0.041 kg, so the weights run counter to the thread sizes and are no help in separating the two.

🚤 Compatibility

• Engine Family: D, IPS

Full model list at the end of this description.

⚙️ Key Features

• Marked M12x50
• 0.023 kg
• 30 applications across the D and IPS series
• Order by the marked thread size, not by weight

🔌 Function

Clamps a joint with an integral flanged head that spreads the load over the mating face without a separate washer.

⚠️ Common Signs of Failure

• Joint working loose, weeping or fretting at the flange face
• Thread stripped, stretched or pulled
• Flange face under the head bruised, dished or corroded
• Head drive recess rounded out

🛠️ Service Notes

• Read the marking off the old screw rather than comparing weights with 991607 — the published figures for the two do not follow their thread sizes

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C2-B MP, D13C2-A MP, D13C4-A MP, D13B-L MP, D13B-G MP, D13B-K MP, D13B-C MP, D13C6-A MP, D13C4-B MP, D13C5-B MP, D13C5-A MP, D13C7-B MP, D13C8-B MP
• Volvo Penta D11C2-A MP, D11C4-A MP, D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP
• Volvo Penta IPS2-C, IPS2-A, IPS2-B
• Volvo Penta IPS20-D, IPS20-E
• Volvo Penta IPS3-C, IPS3-A
• Volvo Penta IPS30-E, IPS30-D
• Volvo Penta D8A4-A MP