AISIN GENUINE TKT-021 Timing Belt Kit with Water Pump for Lexus & Toyota

All-in-one timing belt and water pump service kit

Choosing to replace the timing belt and water pump together is a prudent, time-saving approach. The AISIN GENUINE TKT-021 kit bundles OE-matched parts in one box, simplifying your maintenance and helping you plan a single effective service window. While results can vary by vehicle and condition, this common-sense combo aligns wear points and parts expectations, offering a practical path for many Lexus and Toyota engines.

With this kit, you arent just replace components — you adopt a coordinated solution designed to work as a system. The result can be a smoother installation process and a clearer maintenance timeline, without the guesswork of sourcing compatible parts individually. Its a thoughtful option for owners who want to keep their vehicles running with confidence, rather than a guaranteed outcome.

OE-matched quality from trusted brands

The kit includes components from brands that are well-known in the OE space, delivered together to match the quality your vehicle left the factory with. AISIN leads the market as a leading OE water pump manufacturer, and the bundle often includes reputable names such as Mitsuboshi, Toyo, NTN, and more, ensuring compatibility and reliable performance in everyday driving conditions.

Durable design for engine health

Each water pump in the AISIN kit features a robust diecast aluminum housing and premium internal components, complemented by carbon ceramic seals. This design aims to resist wear and heat, contributing to longer life under typical driving stresses and engine temperatures.

• Water Pump
• Timing Belt
• Tensioner
• Pulleys
• Gasket
• Seals
• Installation Instructions

• OE matched components for a factory-like fit and performance
• One-box solution to save time on sourcing and planning
• Designed for straightforward installation with included instructions

Compatible vehicles and fitment notes

Compatible with select Lexus models (GS400, GS430, GX470, LS400, LS430, LX470, SC400, SC430) and Toyota models (4Runner, Land Cruiser, Sequoia, Tundra). Engine fitment can vary by year and configuration, so please verify your specific vehicles fitment with the provided checker before purchase.