• 90790-BZ442-BT Yamalube 10W30 Outboard | Genuine OEM Yamaha Outboard Part
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90790-BZ442-BT Yamalube 10W30 Outboard | Genuine OEM Yamaha Outboard Part

90790-BZ442-BT Yamalube 10W30 Outboard | Genuine OEM Yamaha Outboard Part

$57.85 AUD
$57.85 AUD
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🔧 Product Description

Genuine Yamalube 4C 10W-30 Four-Stroke Outboard Oil - Part Number: 90790-BZ442-BT

Genuine Yamalube mineral-based 10W-30 marine engine oil formulated for Yamaha four-stroke outboards.

The marine-specific formulation provides lubrication, corrosion protection, deposit control and shear stability during extended high-rpm operation.

⚙️ Key Features

  • Genuine Yamalube four-stroke outboard oil
  • Correct original Yamaha part number 90790-BZ442-BT
  • SAE 10W-30 viscosity
  • NMMA FC-W marine performance specification
  • Four-litre package reference

🚤 Compatibility

Commonly used on

  • Yamaha four-stroke outboard engines
  • Routine engine-oil changes and service filling

Typically suits

  • Engine types:
  • Yamaha portable four-stroke outboards
  • Yamaha mid-range inline-three and inline-four engines
  • Yamaha F75 through F200 four-strokes
  • Yamaha V6 four-stroke outboards where 10W-30 is specified for the operating climate
  • Yamaha high-thrust four-strokes
  • Yamaha VMAX SHO engines where the service manual permits 10W-30 FC-W oil
  • Product Type: Mineral marine four-stroke engine oil
  • Viscosity: SAE 10W-30
  • Package Size: 4 litres
  • Specification: NMMA FC-W.

🔌 Function

The oil lubricates bearings, pistons, camshafts and valve-train components while protecting internal surfaces against corrosion and deposits.

⚠️ Common Signs of Failure

Common signs engine oil requires replacement

  • Oil is dark or contaminated
  • Oil level rises from fuel dilution
  • Low oil-pressure warning
  • Engine noise increases
  • Scheduled service interval has been reached

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 90790-BZ446-BT current related four-litre Yamalube 10W-30 package
  • 90790-BZ442-BT earlier four-litre Yamalube 4C package reference

OEM / Related Numbers

  • 90790-BZ442-BT
  • 90790-BZ446-BT
  • Yamalube 4C 10W-30
  • Four-litre marine engine oil

Aftermarket / Verified Equivalents

  • NMMA FC-W 10W-30 marine engine oil meeting Yamaha's specified requirement
  • Quicksilver 10W-30 four-stroke marine oil
  • Sierra 10W-30 FC-W marine engine oil

📦 Condition

  • Genuine Yamaha product
  • Brand new
  • Supplied in original 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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