• 990990 Lock Nut | Genuine Volvo Penta Part
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990990 Lock Nut | Genuine Volvo Penta Part

990990 Lock Nut | Genuine Volvo Penta Part

$3.34 AUD
$3.34 AUD
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In stock — Australian warehouse

Typically reaches our store in 2–3 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 0.018 kg and listed for 14 applications across the D, DPH and TSK ranges. It supersedes part number 971084.

🚤 Compatibility

Typically suits:

  • Volvo Penta D6-300A-G
  • Volvo Penta D6-340A-G
  • Volvo Penta D6-380A-G
  • Volvo Penta DPH-E
  • Volvo Penta TSK DPH-E
  • Volvo Penta TSK DPI-A
  • Volvo Penta D6-400A-G
  • Volvo Penta D6-440A-G
  • Volvo Penta D4-150A-G
  • Volvo Penta D4-230A-G
  • Volvo Penta D4-270A-G
  • Volvo Penta D4-320A-G
  • Volvo Penta D4-300A-G
  • Volvo Penta TSK DPH-E1
  • Engine Family: D, DPH, TSK
  • HP Range: 150-440 HP

⚙️ Key Features

  • 0.018 kg
  • 14 applications across the D, DPH and TSK ranges
  • Supersedes 971084
  • Also supersedes Volvo part numbers 10594, 3856582, 3856829, 852570, 853656, 853958, 872805, 872806, 873076 and 873080

🔌 Function

Holds a threaded joint against vibration, the locking feature resisting the nut turning back once tightened.

⚠️ Common Signs of Failure

  • Fastener found loose in service
  • Locking feature no longer gripping the thread
  • Thread galled or stripped
  • Corrosion between nut and stud

🛠️ Service Notes

  • Renew on every reassembly, and check the mating thread for damage before the new nut goes on

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 990990 → Supersedes 971084 → Supersedes 3856828

OEM / Related Numbers

  • 971084 earlier number superseded by this part
  • 946034 earlier number superseded by this part
  • 963108 earlier number superseded by this part

📦 Condition

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

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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