AISIN Timing Belt Kit TKT-025 with Water Pump for Toyota 4Runner/Tacoma/Tundra — OE-matched parts, tensioner & pulleys

A complete AISIN TKT-025 timing belt service kit that includes a water pump, belt, tensioner, pulleys, gaskets, and instructions for select Toyota 4Runner, T100, Tacoma, and Tundra models.

If you're planning a timing belt service on the listed Toyota trucks and SUVs, swapping the water pump and all associated drive hardware at the same time is a practical, long-term approach. This AISIN kit packages OE-matched components from recognized manufacturers so you replace the worn parts with parts engineered to the vehicle's original specifications. The kit reduces repeat labor, helps avoid future roadside failures, and arrives ready to install in one box.

What comes in the AISIN TKT-025 kit?

The kit bundles every component typically replaced during a timing belt service so you avoid piecemeal purchases. Parts are matched to original equipment standards and supplied by trusted brands to ensure fit and function.

• Water pump with diecast aluminum housing and carbon ceramic seal
• Timing belt manufactured to OEM profile
• Tensioner assembly and idler pulleys
• Gaskets, seals, and printed installation instructions

Why replace the water pump and belt together?

The procedures to access the timing belt and the water pump overlap substantially, so replacing both now saves labor time and future expense. If one component fails later, you'll likely need the same disassembly again, which doubles costs and downtime.

• Shared labor — one disassembly covers multiple components
• Reduced risk of a failed pump destroying a new timing belt
• Consistent part quality since parts are OE matched

How does AISIN quality benefit my Toyota?

AISIN is a global OE supplier known for durable water pumps and drivetrain components. Using an AISIN kit means you receive parts engineered for the vehicle's original tolerances and materials, which helps maintain reliability and proper engine timing under normal driving conditions.

• Diecast aluminum pump housing for strength and heat dissipation
• Carbon ceramic pump sealing for improved wear resistance
• Components sourced from established brands (Mitsuboshi, Toyo, NTN) for OE-level fit

Which vehicles will this kit fit?

The TKT-025 kit is intended for select Toyota models and model years, but fitment depends on engine type—always verify before purchasing. Use the vehicle fit guide or check the engine code to confirm compatibility.

• Toyota 4Runner: 1996–2002 (verify engine)
• Toyota T100: 1995–1998 (verify engine)
• Toyota Tacoma: 1995–2004 (verify engine)
• Toyota Tundra: 2000–2004 (verify engine)

Who this kit is for: technicians, DIY mechanics, and fleet owners servicing mid-1990s to early-2000s Toyota trucks and SUVs who want an OE-matched, ready-to-install timing belt service package. If you value reducing repeat labor, maintaining factory-level part fit, and replacing all related components in one job, this AISIN kit delivers the parts and instructions needed to complete the repair efficiently.