If your Lexus RX300 (1999 to 2003 with the 3.0L V6) is leaking transmission fluid from the cooler lines, this A-Premium replacement hose assembly is the fix. These metal lines connect your transmission to the radiator cooler, and over time, they can rust, crack, or start leaking. This one is a brand-new, direct-fit part designed to meet or exceed the original specs. It's made from durable metal to resist corrosion and handle the heat and pressure of transmission fluid. The length is 19 inches, and it replaces the inlet OR outlet line (make sure to check which one you need – you might need both!). The part numbers it matches are 3290748010, 624-342, 624342, and 5801495. Super important to double-check those numbers on your old hose before ordering to ensure a perfect fit. Installation is pretty straightforward if you're comfortable working under the vehicle – you'll need to drain some transmission fluid, disconnect the old lines (watch out for hot fluid!), and install the new ones with new seals. Using a quality part like this prevents leaks that can lead to low fluid, transmission overheating, and serious damage. A-Premium backs it with a one-year warranty, so you can install it with confidence. Keep your RX300 running smoothly and avoid a hefty repair bill down the road. Perfect for DIYers or mechanics looking for a reliable, affordable alternative to the dealer part. Just match the numbers, and you're set.
