1677283 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta flange screw is a specified-grade engine fastener used in the engine assembly flange-screw position. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it provides specified clamp load at the documented engine component joint. Selection must be confirmed by OEM part number 1677283, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1677283
• Length: L=70mm
• System group: Engine
• Net weight: 0.043 kg
• Flanged head design spreads clamping load and removes the need for a separate washer
• Fits D12 series marine diesel engines and TAD/TWD industrial and genset engines
• Sold as an individual fastener

🔌 Function

A flange screw clamps and retains an engine-mounted component or bracket against its mating face, with the integral flange distributing the clamping load over a wider area. The 70 mm length sets the usable grip depth for the specific joint it is designed to secure.

⚠️ Common Signs of Failure

• Corrosion, pitting or seizing that makes removal difficult
• Rounded, damaged or stripped head preventing correct torque application
• Stretched or damaged threads causing loss of clamping force
• Repeated loosening, or a component working loose or leaking at the joint
• Visible cracking or shearing of the shank after over-torquing

🛠️ Service Notes

• The integral flange spreads the load and forms the bearing face, so do not add a separate washer unless the workshop manual for your engine specifically calls for one
• Clean the threads and the seating face before fitting — grit, paint or old sealant under the flange gives a false torque reading and the joint will slacken off in service
• Where the flange is serrated it must bear directly on clean metal to grip; discard any screw with a deformed flange or damaged serrations rather than reusing it
• Tighten to the torque and sequence given in the workshop manual for your engine, and treat the screw as single-use where the manual specifies an angle-tightened or stretch fastener
• Check the thread in the receiving component at the same time; a pulled or corroded thread will not hold a new screw however carefully it is torqued

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D12C-A MP, D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
• Volvo Penta TAD1241GE, TAD1241VE, TAD1241-42VE
• Volvo Penta TAD1242GE, TAD1242VE
• Volvo Penta TAD1250VE, TAD1250-52VE
• Volvo Penta TAD1240GE
• Volvo Penta TAD1251VE
• Volvo Penta TAD1252VE
• Volvo Penta TWD1240VE