• 20799731 Washer | Genuine Volvo Penta Part
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20799731 Washer | Genuine Volvo Penta Part

20799731 Washer | Genuine Volvo Penta Part

$2.81 AUD
$2.81 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

OEM fastening or load-distribution component used in the generator-engine charging/regulator and belt-pulley assembly. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly.

🚤 Compatibility

  • Engine Family: TD, TAD
  • HP Range: Approximately 320 HP
  • Year Range: Approximately 2000s-2010s

Full model list at the end of this description.

⚙️ Key Features

  • Earlier-production washer
  • 0.007 kg
  • 28 applications across TD and TAD-series engines
  • Supersedes 20405588
  • Stud 20799728 supersedes the consecutive old number 20405587 and carries the same 28 applications
  • Quantity varies by assembly, most commonly 12

🔌 Function

Spreads the nut or screw load over the mounting face so the clamp load is held without the fastener digging into the component.

⚠️ Common Signs of Failure

  • Fastener found loose with the joint working
  • The mounting face found dished or bruised where the washer has bedded in
  • Washer found flattened, dished or cracked
  • Fretting or a bright witness ring under the washer
  • Corrosion between the washer and the mounting face

🛠️ Service Notes

  • This is the earlier-production washer, so check which production version your engine takes before ordering
  • Stud 20799728 supersedes 20405588's neighbouring number 20405587 and shares the same 28 applications, so the two are commonly renewed together

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 20799731 → Supersedes 20405588

OEM / Related Numbers

  • 20405588 earlier number superseded by this part
  • 21034749 connector
  • 20834412 regulator mounting plate
  • 973924 and 955271 mounting screws
  • 20859762 washer
  • 990940 nut
  • 20459181 clamp
  • 969405 socket screw
  • 21259035 cable - later superseded by 22843492
  • 20799737 and 20799739 pulley configurations
  • 20796079 flange nut

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

  • 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 TD720GE, TD720VE PP
  • Volvo Penta TAD420VE
  • Volvo Penta TAD520VE
  • Volvo Penta TAD532GE EDC4
  • Volvo Penta TAD620VE
  • Volvo Penta TAD650VE
  • Volvo Penta TAD660VE
  • Volvo Penta TAD732GE EDC4
  • Volvo Penta TAD733GE EDC4
  • Volvo Penta TAD750VE
  • Volvo Penta TAD760VE
  • Volvo Penta TD420VE
  • Volvo Penta TD520GE

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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