Toyota ATF WS Automatic Transmission Fluid 7-Quart Genuine OEM Pack for Smooth Shifting

Toyota Genuine ATF WS is a factory-specified automatic transmission fluid supplied in a 7-quart pack to restore proper fluid level and maintain smooth shifting in compatible Toyota, Lexus, and Scion models.

This is the original-equipment automatic transmission fluid formulated to the Toyota specification ATF WS. Sold as part number 00289-ATFWS-X7, it’s manufactured to match the fit, performance characteristics, and viscosity required by transmissions engineered for this fluid. Using the correct OEM fluid helps preserve the transmission’s designed behavior and supports long-term component compatibility.

Which vehicles require Toyota ATF WS and why does specification matter?

ATF WS is specified for many modern Toyota, Lexus, and Scion automatic transmissions that call for the ‘WS’ (World Standard) formula. The correct fluid viscosity and additive package influence clutch engagement, friction characteristics, and hydraulic control, so using the designated ATF helps maintain the transmission’s intended operation.

• Part number: 00289-ATFWS-X7, genuine Toyota OEM fluid
• Designed for Toyota/Lexus/Scion models specifying ATF WS
• Formulated for the right viscosity and friction performance
• Packaged in a 7-quart quantity for complete fills or multi-service use

How should I use the 7‑quart Toyota ATF WS bottle during a service?

Use the full 7-quart pack when a transmission drain-and-fill or full fluid replacement calls for that volume. Follow the vehicle’s service manual for proper warm-up, level check procedure, and refill intervals—some models require a precise temperature for accurate fluid level measurement.

• Refer to the vehicle owner’s/service manual for correct fill volume and temperature
• Warm the transmission to the specified temperature before checking level
• Use authorized funnels or professional fill equipment to avoid contamination
• Retain original packaging and part number for warranty or service records

What are the tangible benefits of choosing genuine Toyota ATF WS?

Choosing genuine Toyota ATF WS aligns the fluid’s chemistry with the factory design, helping to maintain shift quality, reduce slip, and minimize wear from incompatible additives. Installing the specified OEM fluid also simplifies service documentation and helps technicians diagnose transmission behavior against known baseline performance.

• Consistent factory-spec viscosity and friction characteristics
• Reduces risk of incompatibility from aftermarket blends
• Supports reliable shift quality and hydraulic control performance
• Sold with Toyota part number for traceability in service records

Who is this for? This 7-quart pack of Toyota Genuine ATF WS is for DIYers performing a full or multi-bottle transmission service, independent shops needing OEM supply, and dealers who must maintain factory-specified fluid standards. If your Toyota, Lexus, or Scion owner’s manual lists ATF WS, this genuine 00289-ATFWS-X7 bottle ensures you’re using the correct fluid chemistry for continued transmission compatibility and predictable shift behavior.