• 20860349 Lock Washer | Genuine Volvo Penta Part
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20860349 Lock Washer | Genuine Volvo Penta Part

20860349 Lock Washer | Genuine Volvo Penta Part

$21.11 AUD
$21.11 AUD
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Available from Volvo Penta international

Typically reaches our store in 10–14 business days

Availability checked daily with Volvo Penta

✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide

🔧 Product Description

A genuine Volvo Penta lock washer used to secure the oil-cooler/filter control-plunger assembly. The washer maintains fastener retention and valve-stack position despite engine vibration, oil-pressure pulsation and repeated temperature cycles.

🚤 Compatibility

Typically suits:

  • Volvo Penta TAD560VE
  • Volvo Penta TAD561VE
  • Volvo Penta TAD734GE
  • Volvo Penta TAD752GE
  • Volvo Penta TAD753GE
  • Volvo Penta TAD754GE
  • Volvo Penta TAD765VE
  • Volvo Penta TAD764VE
  • Volvo Penta TAD763VE
  • Volvo Penta TAD762VE
  • Volvo Penta TAD761VE
  • Engine Family: TAD

⚙️ Key Features

  • Genuine Volvo Penta Oil Control Valve Lock Washer - part number 20860349
  • Application-specific locking washer for the oil-housing valve assembly
  • Maintains the installed position of the insert, sleeve and control components
  • Provides the original locking geometry and bearing diameter
  • Helps preserve the calibrated spring preload and plunger travel
  • Designed for the specified fastener and housing recess
  • Replace after removal if the locking feature has been flattened or damaged
  • Engine type: D5/D7-series oil-cooler and oil-filter housings

🔌 Function

The washer prevents the valve-retaining fastener or insert from loosening. By preserving the assembled stack height, it helps maintain the spring preload and plunger movement on which the oil-bypass calibration depends.

⚠️ Common Signs of Failure

  • Retaining component loosens in service
  • Visible flattening or loss of locking tension
  • Fretting around the fastener or washer seat
  • Oil-control components shift from their installed position
  • Repeated loosening caused by damaged threads or incorrect torque

🛠️ Service Notes

  • Lock washers are single-use: the spring or the lock is set by the first tightening, so fit a new one whenever the fastener is disturbed
  • Refit in the same arrangement as the parts came off, with the washer bearing on a clean, flat, undamaged seat
  • Where the washer is a tab or bent type, bend the tab firmly against a flat of the fastener after final tightening, and never bend the same tab back and forth twice
  • Tighten the fastener to the figure in the workshop manual for your engine — a lock washer secures a correctly tightened fastener, it does not compensate for a slack one

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

  • VOE20860349

📦 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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