• 20773412 Hexagon Screw | Genuine Volvo Penta Part
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20773412 Hexagon Screw | Genuine Volvo Penta Part

20773412 Hexagon Screw | Genuine Volvo Penta Part

$18.90 AUD
$18.90 AUD
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Shipping calculated at checkout.

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

Application-specific hexagon screw used in the alternator mounting, pulley and belt tensioning system on the listed Volvo Penta engines. Secures the alternator tensioner or bracket assembly with the documented 80 mm fastener length.

🚤 Compatibility

Typically suits:

  • Volvo Penta TAD720VE
  • Volvo Penta TAD721VE
  • Volvo Penta TAD722VE
  • Volvo Penta TAD520VE
  • Engine Family: TAD
  • HP Range: Approximately 160-265 HP
  • Year Range: Approximately 1999 - 2012

⚙️ Key Features

  • Genuine Volvo Penta hexagon screw
  • Designed for the alternator mounting, pulley and belt tensioning system
  • Secures the alternator tensioner or bracket assembly with the documented 80 mm fastener length
  • Documented fastener length: 80mm
  • Engine type: Four- and six-cylinder turbocharged industrial diesel
  • L=80mm (Volvo assembly listing)

🔌 Function

Secures the alternator tensioner or bracket assembly with the documented 80 mm fastener length.

⚠️ Common Signs of Failure

  • Belt squeal or a belt that will not hold its set tension
  • Rattle or knock from the alternator and tensioner assembly
  • The tensioner or bracket visibly moving on its mounting while running
  • On removal the 80 mm screw is bent, stretched or has a necked shank
  • Galled or pulled threads and fretting on the seat under the head

🛠️ Service Notes

  • Confirm thread, length, strength grade and any single-use restriction.
  • Use the specified torque, angle and locking method on clean threads.

🔄 Supersession & Cross Reference

OEM / Related Numbers

  • 20771411 - alternator brackets
  • 20771391 - alternator brackets
  • 20882914 - alternator brackets
  • 20771395 - tensioner arm
  • 20593398 - secondary tensioner
  • 20773400 - washers
  • 20460127 - washers
  • 20549890 - washers
  • 20773415 - rubber stops
  • 978467 - 775mm V-belt set
  • 978489 - 875mm V-belt set
  • 20783944 - alternator pulley
  • 21236925 - alternator references
  • 21489722 - alternator references
  • 21805948 - alternator references
  • 20715635 - 28V 80A alternator references
  • 3803961 - 28V 80A alternator references

Other-Brand OEM Numbers

  • VOE20773412 - Volvo Construction Equipment prefixed number format

OEM Reman Alternatives

  • 3801348 - remanufactured 14V 95A alternator
  • 3801328 - remanufactured 28V 55A alternator

📦 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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