OE Number:
16431-31490/16401-62100

Fitment of Engine Radiator Water Outlet Flange w/ Cap:
for Toyota Sienna CE, LE, XLE 6 Cyl 3.5L 2007-2010
for Lexus RX350 Base 3.5L V6 2007-2009
Not for Lexus RX350 Base Sport Utility 4-Door, 3.5L V6 GAS DOHC 2007
Not for Toyota Sienna LE Mini Passenger Van 4-Door 3.5L V6 2010
Please confirm car make, model, year and OE number before purchase.

Specification of Radiator Coolant Filler Neck w/ Cap:
Material: Metal, Plastic
Color: Black
With Cap: Yes
Please check detail size through pictures
Include 1x Coolant Thermostat Housing Water Pipe, 1x Engine Radiator Filler Neck Cap

Features of Upper Engine Radiator Outlet Flange
For Engine Cooling System to connect radiator/coolant reservoir/engine.
Help to solve problem like engine overheating to avoid car downtime, provide a smoothful driving experience.
Adopt with durable plastic material on body and reliable metal material on cap with correct Pa, come with the firmly matching caps, aim to provide a better using experience for your vehicle, and have a long service time.
This is non-oem product, accessory only.