984826 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flange screw for the PTO and front pulley on the HC50, weighing 0.154 kg and listed for 57 applications across the D, TAD, TWD and TADH engine families. It supersedes part number 979935, a number catalogued earlier as a hexagon screw.

🚤 Compatibility

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

Full model list at the end of this description.

⚙️ Key Features

• For the PTO and front pulley, HC50
• 0.154 kg
• 57 applications across four engine families
• Supersedes 979935, formerly listed as a hexagon screw
• Quantity varies by assembly, most commonly one
• Also supersedes Volvo part number 955358

🔌 Function

Clamps the PTO or front pulley to its drive flange, the integral flange under the head spreading the clamping load.

⚠️ Common Signs of Failure

• Belt squeal or a wandering belt line from a pulley that has moved
• Screws found slack, with bright fretting marks under the heads
• Bruised or elongated holes in the pulley or PTO flange
• Thread stretched, so it binds part way down
• Head corroded or the drive rounded

🛠️ Service Notes

• A PTO drive screw carries the whole driven load, so renew the set rather than one screw and tighten to the figure in the engine's manual
• Check the pulley or PTO flange face for fretting before refitting

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 984826 → Supersedes 979935 → Supersedes 970987 → Supersedes 955357

OEM / Related Numbers

• 979935 earlier number superseded by this part
• 970988 earlier number superseded by this part
• 970987 earlier number superseded by this part
• 955357 earlier number superseded by this part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, D6-300A-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
• Volvo Penta 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 D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP, D8A7-A MP, D8A8-A MP
• Volvo Penta D13C2-B MP, D13C4-B MP, D13C5-B MP, D13C7-B MP, D13C8-B MP, D13B-N MH, D13C1-A MH, D13C9-A MP
• Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD853VE
• Volvo Penta TAD870-73VE
• Volvo Penta TAD880-84VE
• Volvo Penta TADH880-84VE
• Volvo Penta TWD1744GE