957019 Hexagon Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hexagon nut published at 0.011 kg and listed for 29 applications across the D, TAD and TWD engine series. It sits between 957018 at 0.007 kg and 957020 at 0.020 kg in the four-nut run listed here, but the thread size is not published for any of them, so identify the nut from the fastener it goes on rather than from the figures.

🚤 Compatibility

• Engine Family: D, TAD, TWD
• HP Range: 300-480 HP

Full model list at the end of this description.

⚙️ Key Features

• 0.011 kg
• 29 applications across the D, TAD and TWD series
• One of four hexagon nuts in this run alongside 957018, 957020 and 957021
• No thread size published
• Quantity varies by assembly, most commonly one

🔌 Function

Clamps a threaded joint by tightening down on a stud or bolt, holding the assembled parts tight against one another.

⚠️ Common Signs of Failure

• Joint working loose and the nut found finger-tight
• Damaged or crossed threads that bind partway down
• Flats rounded off so a spanner no longer grips
• Corrosion welding the nut to the stud
• Fretting or bright rubbing marks under the nut face

🛠️ Service Notes

• Clean and inspect the mating face before fitting - a burred face will let the nut relax again
• If the nut has to be cut off, check the stud for stretch before reassembly

📦 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 D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
• Volvo Penta TAD1643VE-B
• Volvo Penta TAD1650VE-B/51VE
• Volvo Penta TAD1670-72VE
• Volvo Penta TWD1683VE