• 20505959 Nut Retainer | Genuine Volvo Penta Part
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20505959 Nut Retainer | Genuine Volvo Penta Part

20505959 Nut Retainer | Genuine Volvo Penta Part

$4.20 AUD
$4.20 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

This genuine Volvo Penta nut retainer is an OEM service component used in the Exhaust / Inlet Nut Retainer. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 4-litre TAD4 industrial diesel application. Technical identification: Heat-resistant nut retainer used at the inlet/exhaust assembly. In service, it retains and locates the associated cable, pipe, pin, shaft or small component at the specified position. Selection must be confirmed by OEM part number 20505959, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

  • Engine Family: TD, TAD

Full model list at the end of this description.

⚙️ Key Features

  • Genuine Volvo Penta OEM nut retainer
  • OEM part number 20505959
  • Technical distinction: Heat-resistant nut retainer used at the inlet/exhaust assembly
  • Quantity varies by assembly, most commonly 12

🔌 Function

Retains and locates the associated cable, pipe, pin, shaft or small component at the specified position. Inspect the mating bore, shaft, bracket or mounting points; install squarely with the correct tooling and verify alignment, movement and retention.

⚠️ Common Signs of Failure

  • Rattling or buzzing from the inlet or exhaust area
  • The fastener found loose or backed off at service
  • A puffing exhaust leak or soot tracking at the joint
  • Heat discolouration and scaling on the retainer body
  • On removal, the retainer cracked, distorted or without its original spring tension

🛠️ Service Notes

  • Supersedes 20405593, catalogued earlier as a hexagon nut, so the current number brings a different looking part
  • Renew rather than reuse once heat-cycled, and check the studs for stretch and thread damage while the joint is open

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 20505959 → Supersedes 20405593 → Supersedes 20460301

OEM / Related Numbers

  • 20405593 earlier number superseded by this part
  • 20460301 earlier number superseded by this part

Other-Brand OEM Numbers

  • Elring: 247.130

Aftermarket / Verified Equivalents

  • DT Spare Parts: 2.12120
  • Sampa: 104.138

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

  • Volvo Penta TAD520GE, TAD520VE
  • Volvo Penta TAD530GE MECH, TAD530GE EDC4
  • Volvo Penta TAD531GE MECH, TAD531GE EDC4
  • Volvo Penta TAD720GE, TAD720VE
  • Volvo Penta TAD721GE, TAD721VE
  • Volvo Penta TAD722GE, TAD722VE
  • Volvo Penta TAD730GE MECH, TAD730GE EDC4
  • Volvo Penta TAD731GE MECH, TAD731GE EDC4
  • Volvo Penta TAD750GE, TAD750VE
  • Volvo Penta TD520GE, TD520VE
  • Volvo Penta TD720GE, TD720VE PP
  • Volvo Penta TAD420VE
  • Volvo Penta TAD532GE EDC4
  • Volvo Penta TAD550GE
  • Volvo Penta TAD551GE
  • Volvo Penta TAD620VE
  • Volvo Penta TAD650VE
  • Volvo Penta TAD660VE
  • Volvo Penta TAD732GE EDC4
  • Volvo Penta TAD733GE EDC4
  • Volvo Penta TAD734GE
  • Volvo Penta TAD751GE
  • Volvo Penta TAD752GE
  • Volvo Penta TAD753GE
  • Volvo Penta TAD754GE
  • Volvo Penta TAD760VE
  • Volvo Penta TD420VE

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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