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Toyota 16346-50010 Thermostat Gasket

Name: Toyota 16346-50010 Thermostat Gasket
Brand: globalsautoparts.com
Price: 12.25 USD
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$12.25 USD

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✔ Genuine Toyota 16346-50010 Thermostat Gasket — OEM Part
✔ Fitment: Toyota and Lexus V8 engines (2UZ-FE, 3UZ-FE, 1UR-FE, and others)
✔ Direct replacement for factory thermostat gasket — no modifications required
✔ Manufactured to Toyota's original specifications and tolerances
✔ High‑quality sealing material — withstands heat and coolant pressure
✔ Precision‑cut design — ensures a perfect seal around the thermostat housing

Genuine Toyota 16346-50010 Thermostat Gasket — for V8 Engines

Coolant leaks around the thermostat housing, engine overheating, or a low coolant level warning — these are common signs that your thermostat gasket may need replacement. The gasket provides a seal between the thermostat housing and the engine block, preventing coolant from leaking and ensuring the cooling system operates properly. A worn or damaged gasket can cause coolant loss, overheating, and potential engine damage. Replacing it with this genuine Toyota gasket restores a proper seal and protects your engine.

This is a factory‑original Toyota thermostat gasket (OE part number 16346-50010), designed for Toyota and Lexus V8 engines. It is made from a high‑quality, heat‑ and coolant‑resistant material that maintains its sealing properties under extreme temperatures and pressure. The gasket is precision‑cut to match the factory thermostat housing, ensuring a leak‑tight fit. This is the same part sold at Toyota dealerships.

When to Replace

When to Replace (Common Symptoms)
• Coolant leaks around the thermostat housing
• Engine overheating or fluctuating temperature
• Low coolant level warning
• The old gasket is cracked, hardened, or deformed
• You are replacing the thermostat and need a new gasket

Product Details & Highlights

Product Highlights
• ✔ Genuine Toyota OEM — not an aftermarket or Chinese replica
• ✔ High‑quality sealing material — withstands heat and coolant pressure
• ✔ Precision‑cut design — fits the factory thermostat housing
• ✔ Direct replacement — bolts on with no modifications
• ✔ Single‑use sealing — ensures leak‑free operation every time
• ✔ Backed by Toyota’s manufacturer warranty (valid through any authorized dealer)

Package Contents

Package Contents
• 1 × Toyota 16346-50010 thermostat gasket (genuine)

FAQ

Is this a genuine Toyota part or a copy?
This is 100% genuine Toyota OEM — in original factory packaging with Toyota part number printed on the label. It is not an aftermarket brand or a replica.

Does this fit my 2002 Toyota Land Cruiser with the 2UZ-FE engine?
Yes — the 2002 Land Cruiser with the 2UZ-FE V8 engine uses this gasket. We recommend verifying with your VIN.

Does this fit my 2005 Toyota Tundra with the 2UZ-FE engine?
Yes — the 2005 Tundra with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this fit my 2008 Toyota 4Runner with the 2UZ-FE engine?
Yes — the 2008 4Runner with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Can I reuse the old gasket?
No — this gasket is designed for one‑time use. Once it has been compressed or removed, it should be replaced with a new one.

Does this gasket come with a gasket sealant?
No — this is the gasket only. No additional sealant is required for installation.

What is the torque spec for installation?
The typical torque spec for the thermostat housing bolts is 10–12 Nm. Always refer to your vehicle’s service manual for the exact specification.

Does this gasket fit the Lexus LS?
Yes — the Lexus LS with the 3UZ-FE or 1UR-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the Lexus LX?
Yes — the Lexus LX with the 2UZ-FE or 3UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the Lexus GS?
Yes — the Lexus GS with the 3UZ-FE or 1UR-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2009 Toyota Land Cruiser?
Yes — the 2009 Land Cruiser uses this gasket. Please verify with your VIN.

Does this gasket fit the 2010 Toyota Tundra?
Yes — the 2010 Tundra uses this gasket. Please verify with your VIN.

Does this gasket fit the 2004 Toyota Sequoia?
Yes — the 2004 Sequoia with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2006 Toyota 4Runner?
Yes — the 2006 4Runner with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2008 Lexus SC?
Yes — the 2008 Lexus SC with the 3UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2015 Lexus LX?
Yes — the 2015 Lexus LX uses this gasket. Please verify with your VIN.

Does this gasket come with a warranty?
Yes — this gasket is backed by Toyota's manufacturer warranty. For claims, please contact your nearest Toyota authorized dealer.

Can I install this gasket myself?
Yes — it is a straightforward bolt‑on replacement. However, we recommend consulting your vehicle’s service manual for the correct installation procedure.

Does this gasket fit the 2000 Toyota Tundra?
Yes — the 2000 Tundra with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2006 Lexus GS?
Yes — the 2006 Lexus GS with the 3UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2016 Lexus LS?
Yes — the 2016 Lexus LS uses this gasket. Please verify with your VIN.

Does this gasket fit the 2003 Toyota Sequoia?
Yes — the 2003 Sequoia with the 2UZ-FE V8 engine uses this gasket. Please verify with your VIN.

Does this gasket fit the 2007 Toyota Land Cruiser?
Yes — the 2007 Land Cruiser uses this gasket. Please verify with your VIN.

Does this gasket fit the 2009 Lexus GS?
Yes — the 2009 Lexus GS uses this gasket. Please verify with your VIN.

Does this gasket fit the 2010 Lexus LS?
Yes — the 2010 Lexus LS uses this gasket. Please verify with your VIN.

Does this gasket fit the 2005 Lexus SC?
Yes — the 2005 Lexus SC with the 3UZ-FE V8 engine uses this gasket. Please verify with your VIN.

View full details

Genuine Toyota 16346-50010 Thermostat Gasket

OEM Part Numbers
• 16346-50010

Cross Reference / Analogs

Brand	Part Number	Type / Note
AISIN	THP-108	Engine coolant thermostat gasket
Beck/Arnley	039-0132	Thermostat gasket
Gates	33658	Thermostat seal / gasket
Stant	25283	Thermostat gasket
TAMA	P108	Thermostat gasket
MAHLE	C31700	Thermostat gasket
Dorman	902-5060	Thermostat gasket / seal
DNJ	WOG972	Thermostat gasket
APEX	AWO2146	Thermostat gasket
AJUSA	00813100	Thermostat gasket
FEL-PRO	35555	Thermostat gasket

Vehicle Fitment Table (OEM Compatibility)

Brand	Model	Engine	Years	Notes
Toyota	Land Cruiser	2UZ-FE / 3UZ-FE	1998–2021	V8 engine
Toyota	Sequoia	2UZ-FE / 3UZ-FE	2000–2022	V8 engine
Toyota	Tundra	2UZ-FE / 3UZ-FE	2000–2021	V8 engine
Toyota	4Runner	2UZ-FE	2003–2009	V8 engine
Lexus	LX	2UZ-FE / 3UZ-FE	1998–2021	V8 engine
Lexus	GS	3UZ-FE / 1UR-FE	2000–2020	V8 engine
Lexus	LS	3UZ-FE / 1UR-FE	2000–2020	V8 engine
Lexus	SC	3UZ-FE	2001–2010	V8 engine

⚠️ Important Fitment Notes:

• Always verify by VIN – Fitment is determined by the specific engine code and thermostat housing design. Confirm your application before ordering.

• Direct replacement – This gasket is a direct fit for the factory thermostat housing. No modifications are needed.

• High‑quality material – Made from a durable, heat‑resistant material for long service life.

• Single‑use – This gasket is designed for one‑time use. Once it has been compressed or removed, it should be replaced with a new one.

• Genuine Toyota quality – This is an OEM part, not an aftermarket or Chinese replica.

• Double‑check your original part – Before ordering, confirm the part number printed on your old gasket or run your VIN through a Toyota OEM parts catalog for absolute certainty.

Condition
New (100% genuine Toyota packaging)

Product Type
Thermostat Gasket (coolant seal for thermostat housing)

Function
The thermostat gasket seals the connection between the thermostat housing and the engine block, preventing coolant from leaking and ensuring the cooling system maintains proper pressure and temperature.

Applications
This thermostat gasket fits Toyota and Lexus V8 engines (2UZ‑FE, 3UZ‑FE, 1UR‑FE) in Land Cruiser, Sequoia, Tundra, 4Runner, LX, GS, LS, and SC from approximately 1998 through 2022.

Important: This gasket is designed for V8 engines only. It is not compatible with 4‑cylinder or V6 engines. If in doubt, send us your VIN before ordering.

Technical Specifications

Parameter	Specification
Brand	Toyota (Genuine OEM)
Part Number	16346-50010
Seller SKU	TOYOTA_16346-50010
Type	Thermostat gasket
Engine Family	2UZ-FE / 3UZ-FE / 1UR-FE (V8)
Material	Heat-resistant sealing material
Application	Thermostat housing seal
Condition	New (factory original)

Warranty
Toyota's original manufacturer warranty applies. For claims, please contact your nearest Toyota authorized dealer with your proof of purchase. Warranty terms may vary by region — contact us before purchase if you need a warranty confirmation.