• 990966 Hexagon Nut | Genuine Volvo Penta Part
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990966 Hexagon Nut | Genuine Volvo Penta Part

990966 Hexagon Nut | Genuine Volvo Penta Part

$0.57 AUD
$0.57 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 hexagon nut listed for 25 D-series applications. It supersedes part number 955780.

🚤 Compatibility

  • Engine Family: D
  • HP Range: 175-480 HP

Full model list at the end of this description.

⚙️ Key Features

  • 25 D-series applications
  • Supersedes 955780
  • Also supersedes Volvo part number 841768

🔌 Function

Clamps a threaded joint through a plain six-sided nut tightened onto a stud or bolt.

⚠️ Common Signs of Failure

  • Nut found loose at service
  • Flats rounded by a slipping spanner
  • Thread stripped or crossed
  • Corrosion seizing the nut onto its stud

🛠️ Service Notes

  • A plain hexagon nut relies on the washer or locking arrangement specified for the joint - fit whatever was used originally rather than leaving it out
  • No weight is published here, so order by part number against the application rather than by comparison with the other hexagon nuts in this run

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 990966 → Supersedes 955780 → Supersedes 151233

OEM / Related Numbers

  • 955780 earlier number superseded by this part
  • 10432 earlier number superseded by this part
  • 10455 earlier number superseded by this part
  • 20460444 earlier number superseded by this part
  • 151223 earlier number superseded by this part
  • 20459037 earlier number superseded by this part
  • 241106 earlier number superseded by this part
  • 3552599 earlier number superseded by this part
  • 3852518 earlier number superseded by this part
  • 906546 earlier number superseded by this part
  • 906574 earlier number superseded by this part
  • 947414 earlier number superseded by this part
  • 955788 earlier number superseded by this part
  • 151233 earlier number superseded by this part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, D6-480I-WJ-G, D6-400A-G, D6-300I-G
  • Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G
  • Volvo Penta D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
  • Volvo Penta D8A5-A MH, D8A6-A MH

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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