853573 Hexagon Nut | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hexagon nut, the AQ variant, from the Marine Propulsion group. It is listed for 47 applications across the MD, TMD, AD, AQAD, D and TAMD families. The AQ marking is what separates it from otherwise similar nuts in the range.

🚤 Compatibility

• Engine Family: MD, TMD, AD, AQAD, D, TAMD, AQD, KAD, KAMD

Full model list at the end of this description.

⚙️ Key Features

• AQ variant
• 47 applications across the MD, TMD, AD, AQAD, D and TAMD families
• Hexagon nut

🔌 Function

Clamps a threaded joint and holds the assembly at its set tightness.

⚠️ Common Signs of Failure

• Joint working loose, or the setting drifting in service
• Nut found backed off, with fretting marks around the seat
• Thread corroded, galled or stripped
• Nut corners rounded from being turned with the wrong tool

🛠️ Service Notes

• Check that the AQ variant is the one your application calls for rather than ordering on the name alone
• Tighten to the manual figure for the joint, and use a new nut if the locking feature has already been used

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AD31, AD31B, AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta AD41B, AD41D, AD41L-A, AD41P-A, AD41A, AD41BJ
• Volvo Penta D41B, D41D, D41L-A
• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta KAD43P-B, KAD43P-A
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta AD30A
• Volvo Penta AQAD30A
• Volvo Penta AQD40A
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAD42P-A
• Volvo Penta KAMD300-A
• Volvo Penta KAMD42P-A
• Volvo Penta MD30A
• Volvo Penta MD40A
• Volvo Penta TAMD30A
• Volvo Penta TAMD31B
• Volvo Penta TAMD41B
• Volvo Penta TMD30A