• 946577 Lock Nut | Genuine Volvo Penta Part
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946577 Lock Nut | Genuine Volvo Penta Part

946577 Lock Nut | Genuine Volvo Penta Part

$1.08 AUD
$1.08 AUD
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In stock — Australian warehouse

Typically reaches our store in 3–5 business days

Availability checked daily with Volvo Penta

✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide

🔧 Product Description

Genuine Volvo Penta lock nut weighing 0.045 kg and listed for 319 applications across the MD, TMD, AQ, TD, AD and TAMD series. It is a substantially larger fastener than the other lock nuts in this run, which are published at 0.007 to 0.041 kg.

🚤 Compatibility

  • Engine Family: MD, TMD, AQ, TD, AD, TAMD, AQAD, D, TWD, TID, BB, MS, B, DP, SP, DPX, AQD, MB, KAD, KAMD
  • HP Range: 13-75 HP

Full model list at the end of this description.

⚙️ Key Features

  • 0.045 kg
  • 319 applications across MD, TMD, AQ, TD, AD and TAMD series engines
  • Quantity varies by assembly, most commonly two

🔌 Function

Locks onto a stud or screw and resists loosening under vibration.

⚠️ Common Signs of Failure

  • Nut turning freely by hand — the locking feature has gone
  • Joint found loose or the fastener backed out
  • Flats rounded from repeated removal
  • Thread galled or seized

🛠️ Service Notes

  • Renew rather than reuse once the locking action is weak
  • Check the stud or screw thread for pick-up before fitting a new nut

🔄 Supersession & Cross Reference

OEM / Related Numbers

  • 940092 referenced in the part notes

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

  • Volvo Penta 2003, 2003R, 2003R SOLAS, 100S, 110S, 120S, 120S-B, 740B, 8.1GiI-A, 8.1GiI-B, 8.1GiI-C, 8.1GiI-D, 8.1GiI-E, 8.1GSiI-A, 8.1GXiI-A, 8.1GXiI-B, 8.1GXiI-C, 8.1GXiI-D, 500A, 501A, 501B, 570A, 572A, 740A, 5.7GSiI-A, 5.7GXiI-A, 5.7GXiI-B, 5.7GXiI-C, 5.7GXiI-D, 5.7GXiI-E, 5.7GXiI-F, 5.7GiI-A, 5.7GiI-B, 5.7GiI-C, 5.7GiI-D, 5.7GiI-E, 430A, 430B, 431A, 431B, 432A, 434A, 2003TB, 2003TB SOLAS, 230A, 230B, 250A, 250B, 280B, 290A, 290DP, 120SC, 120S-D, 120S-E, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 570, 500B, 500, 2002, 430, 2001R
  • Volvo Penta TID121KG, TID121KGP, TID121KP, TID121KPB, TID121L, TID121LG, TID121LGP, TID121LP, TID121LPB, TID121FG, TID121K, TID121K-87
  • Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A1, DP-A2, DP-B, DP-B1
  • Volvo Penta TD100G-85, TD100G, TD100GG, TD100GGP, TD100HP, TD100HPB, TD100GG-85, TD100GP, TD100GP-85
  • Volvo Penta TID100KG, TID100KGP, TID100K, TID100K-87, TID100KGP-87, TID100KP, TID100KP-87, TID100KPB-87
  • Volvo Penta TD61A, TD61ACE, TD61AG, TD61AGP, TD61AP, TD61APB, TD61AW
  • Volvo Penta TD71A, TD71ACE, TD71AG, TD71AGP, TD71AP, TD71APB, TD71AW
  • Volvo Penta MS2B-A, MS2B-L, MS2L-E, MS2B, MS2V, MS2A-E
  • Volvo Penta TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121GPB
  • Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
  • Volvo Penta AD41P-B, AD41B, AD41, AD41A, AD41BJ
  • Volvo Penta B230, B230E, B230F, B230FB, B230FX
  • Volvo Penta D2-40F, D2-55F, D2-50F, D2-75F, D2-60F
  • Volvo Penta SP-C, SP-A2, SP-C1, SP-A, SP-A1
  • Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
  • Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
  • Volvo Penta BB225A, BB225AV, BB225B, BB225C
  • Volvo Penta MD22, MD22A, MD22L, MD22P
  • Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
  • Volvo Penta TAMD41B, TAMD41D, TAMD41M-A, TAMD41A
  • Volvo Penta TID71AG, TID71AGP, TID71AP, TID71APB
  • Volvo Penta AQ151A, AQ151B, AQ151C
  • Volvo Penta AQ170B, AQ170C, AQ170A
  • Volvo Penta AQ225D, AQ225E, AQ225F
  • Volvo Penta BB115A, BB115B, BB115C
  • Volvo Penta BB170B, BB170C, BB170A
  • Volvo Penta BB260AV, BB260B, BB260C
  • Volvo Penta D1-30F, D1-13F, D1-20F
  • Volvo Penta MB20A, MB20B, MB20C
  • Volvo Penta MD100A, MD100B, MD100B-CC
  • Volvo Penta MD5A, MD5B, MD5C
  • Volvo Penta TMD22A, TMD22B, TMD22P-C
  • Volvo Penta TMD31A, TMD31B, TMD31D
  • Volvo Penta TMD40A, TMD40B, TMD40C
  • Volvo Penta AQ115A, AQ115B
  • Volvo Penta AQ125B, AQ125A
  • Volvo Penta AQ145B, AQ145A
  • Volvo Penta AQ260A, AQ260B
  • Volvo Penta AQAD40B, AQAD40A
  • Volvo Penta AQD21A, AQD21B
  • Volvo Penta D41, D41B
  • Volvo Penta MD11C, MD11D
  • Volvo Penta MD17C, MD17D
  • Volvo Penta MD21B, MD21A
  • Volvo Penta MD6A, MD6B
  • Volvo Penta MD7B, MD7A
  • Volvo Penta MS3B, MS3C
  • Volvo Penta MS4B, MS4A
  • Volvo Penta MS5A, MS5B
  • Volvo Penta TAMD120A, TAMD120B
  • Volvo Penta TAMD40A, TAMD40B
  • Volvo Penta TAMD71B, TAMD71A
  • Volvo Penta TD120HP, TD120HPP
  • Volvo Penta TD730ME, TD730VE
  • Volvo Penta TID61AG, TID61AGP
  • Volvo Penta TMD100A, TMD100C
  • Volvo Penta TMD120A, TMD120B
  • Volvo Penta TMD41A, TMD41B
  • Volvo Penta AD40B
  • Volvo Penta AQ120B
  • Volvo Penta AQ140A
  • Volvo Penta AQ165A
  • Volvo Penta AQD40A
  • Volvo Penta B20
  • Volvo Penta BB140A
  • Volvo Penta BB145A
  • Volvo Penta BB165A
  • Volvo Penta BB231A
  • Volvo Penta BB261A
  • Volvo Penta BB740A
  • Volvo Penta D2002AG
  • Volvo Penta D2003AG
  • Volvo Penta DPX
  • Volvo Penta KAD44P
  • Volvo Penta KAMD44P-A
  • Volvo Penta MD120A
  • Volvo Penta MD2010
  • Volvo Penta MD2020
  • Volvo Penta MD2030
  • Volvo Penta MD2040
  • Volvo Penta MD30A
  • Volvo Penta MD31A
  • Volvo Penta MD40A
  • Volvo Penta MD67C
  • Volvo Penta MD70C
  • Volvo Penta TAMD22P-B
  • Volvo Penta TAMD30A
  • Volvo Penta TAMD61A
  • Volvo Penta TAMD62A
  • Volvo Penta TAMD72P-A
  • Volvo Penta TD31ACE
  • Volvo Penta TD610M
  • Volvo Penta TD630ME
  • Volvo Penta TID120HPP
  • Volvo Penta TMD30A
  • Volvo Penta TMD70C
  • Volvo Penta TWD1210P
  • Volvo Penta TWD1211P

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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