996078 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flange screw weighing 0.095 kg and listed for 25 applications across the D and TAD engine series. It supersedes part number 974428.

🚤 Compatibility

• Engine Family: D, TAD
• HP Range: 145-480 HP

Full model list at the end of this description.

⚙️ Key Features

• 0.095 kg
• 25 applications across the D and TAD series
• Supersedes 974428
• Quantity varies by assembly, most commonly 8

🔌 Function

Clamps two components together, its integral flange spreading the clamp load so no separate washer is needed.

⚠️ Common Signs of Failure

• Joint working loose or weeping at the face
• Serrations under the flange worn smooth or bedded in
• Head rounded off or the drive faces chewed
• Thread stripped or galled on removal
• Flange cracked or distorted around the head

🛠️ 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

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 996078 → Supersedes 974428

OEM / Related Numbers

• 974428 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300I-G
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A1-A MP, D8A2-A MP, D8A3-A MP
• Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-145I-G
• Volvo Penta D9A2L MH, D9A2M MP
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD870-73VE