# 90790-BS211-BT Yamaha 2 Stroke TCW3 4L | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamalube 2C TC-W3 Two-Stroke Outboard Oil - Part Number: 90790-BS211-BT

  

Genuine Yamalube mineral-based two-stroke marine engine oil supplied in a four-litre container.

  

The ashless detergent formulation is designed for Yamaha oil-injected and premix two-stroke outboards, providing piston, ring, bearing and cylinder lubrication while controlling deposits and corrosion.

  

⚙️ Key Features

  

• Genuine Yamalube two-stroke marine engine oil

• Correct Yamaha part number 90790-BS211-BT

• NMMA TC-W3 marine lubricant specification

• Suitable for premix and oil-injection systems

• Supplied in a four-litre container

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 90790-BS211-BT current Australian Yamalube 2C four-litre package reference

  

OEM / Related Numbers:

  

• 90790-BS211-BT

• Yamalube 2C

• Yamalube two-stroke TC-W3

• Four-litre marine two-stroke oil

  

Aftermarket / Verified Equivalents:

  

• TC-W3-certified marine two-stroke oil meeting Yamaha's specified lubricant requirement

• Quicksilver Premium Plus TC-W3 marine oil

• Sierra Premium TC-W3 two-stroke marine oil

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha oil-injected two-stroke outboards

• Yamaha premix two-stroke outboards

• Yamaha Precision Blend lubrication systems

  

Typically suits:

  

• Engine types:

• Yamaha portable two-stroke outboards

• Yamaha mid-range two-stroke outboards

• Yamaha V4 and V6 carburetted two-strokes

• Yamaha EFI two-stroke outboards

• Yamaha oil-injected engines requiring TC-W3 lubricant

• Premix engines using the fuel-to-oil ratio stated in the owner's manual

  

• Product Type: TC-W3 marine two-stroke oil

• Container Size: 4 litres

• Mixing Method: Oil injection or premix as specified by Yamaha.

  

🔌 Function

  

The oil lubricates pistons, rings, crankshaft bearings and cylinder surfaces while reducing deposits and protecting internal metals from corrosion.

  

Common signs unsuitable or degraded oil is being used:

  

• Excessive exhaust smoke

• Heavy carbon accumulation

• Spark-plug fouling

• Piston or ring wear

• Oil-injection system contamination caused by mixed lubricant types

  

📦 Condition

  

• Genuine Yamaha product

• Brand new

• Supplied in original packaging

## Details

- **Price:** 68.0 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 68.00 AUD | In stock |

## Images

- 90790-BS211-BT Yamaha 2 Stroke TCW3 4L | Genuine OEM Yamaha Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/90790-bs211-bt-2-stroke-tcw3-4l)
> Updated: 2026-07-11