

🔥 Keep your engine cool and your ride flawless with genuine Toyota precision!
The Genuine Toyota Thermostat Gasket (OEM part #16346-50010) is a high-quality, USA-made O-ring gasket designed for a perfect seal around Toyota and Motorad thermostats, optimized for 180°F operation. With a 4.8-star rating from 137 reviews, it offers durable, factory-grade reliability that protects your engine’s cooling system and ensures long-lasting performance without hassle.






| ASIN | B00J09FONU |
| Assembly Required | No |
| Brand | Toyota |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (137) |
| Date First Available | 12 June 2014 |
| Generic Name | GASKET, THERMOSTAT |
| Item Weight | 18 g |
| Item model number | 16346-50010 |
| Manufacturer | Toyota |
| Manufacturer Part Number | 16346-50010 |
| Model | GASKET, THERMOSTAT |
| OEM Part Number | 16346-50010 |
| Package Dimensions | 9.5 x 6.4 x 1.19 cm; 18 g |
R**S
This O-ring type thermostat gasket fits perfectly on the original Toyota thermostat -- and also fits the Motorad #302-180 High-Flow thermostat when installed in the Toyota-Lexus 4.7-liter engine. The O-ring gasket has a center groove that allows the gasket to be fitted around the edge of the thermostat, thereby making a positive seal and allowing the thermostat to function as intended. I used the Toyota O-ring and Motorad thermostat to replace the original parts after 235,000 miles. The Motorad # 302-180 opens at 180 degrees F., which is the operating temp specified by Toyota.
K**.
The phrase “buy once, cry once”. Whenever possible go with the factory part. Toyota quality and price out ways the cheap aftermarket products. This thermostat ring is worth the extra $3 over a different one.
M**R
The gasket comes in a clear bag you don't normally comes in when you order direct from the dealer. Unsure if it's a real or generic gasket. But I took my risk since I needed one to finish a timing belt job on a 2003 Toyota 4-Runner with a V8 engine. Took the old one off and popped in the new one. Finished the timing belt job and no leaks. So that's all it matters.
K**G
Fit on my 2006 Tundra when my thermostat failed. I keep a couple of these as I have two high mileage Toyotas that use them. Cheap insurance policy if you get in a jam.
S**R
You need to buy this in conduction with the thermostat. This claims to be a Toyota OEM, and it certainly fits like it does. Why they don't combo the gasket with the thermostat is an utter disrespect to the customer, but it's a great way to nickel and dime us...especially when this costs what it does. But you need it---so buy it.
Trustpilot
2 months ago
1 month ago