TOYOTA 16346-66020 Thermostat Gasket
Genuine part. Fitment information is for reference only. To ensure 100% compatibility, please send us a message with your VIN number before ordering.
Categories
Product Description
The genuine TOYOTA thermostat gasket (part number 16346-66020) is a critical sealing component of the cooling system. Its primary function is to provide a leak-free seal between the thermostat housing and the engine block or thermostat cover, preventing coolant leaks and loss of system pressure. Manufactured according to strict OEM specifications, the elastomer material is engineered to resist high operating temperatures, chemical exposure to engine coolant, and stresses resulting from thermal cycling.
Technical Specifications
- Part Type: Thermostat gasket
- Manufacturer: TOYOTA (Genuine OEM part)
- Installation Location: Cooling system / Thermostat housing
- Material: Heat- and chemical-resistant automotive elastomer
- Function: Coolant leak prevention, system pressure retention
Symptoms of Failure and Replacement
Aging, cracking, or loss of elasticity can cause coolant leaks around the thermostat housing, leading to a drop in coolant level, trapped air in the cooling system, and ultimately engine overheating. It is strictly recommended to replace the gasket whenever the thermostat is replaced or whenever the cooling system housing is disassembled.
Compatible Vehicles
- Toyota Coaster (B40/B50) 4.2 D [1993 - ...] (Engine code: 1HZ)
- Toyota Coaster (B60/B70) 4.2 D [2017 - ...] (Engine code: 1HZ)
- Toyota Land Cruiser 100 (J100) 4.2 TD [1998 - ...] (HDJ101, 1HDFTE)
- Toyota Land Cruiser 100 (J100) 4.5 [1998 - ...] (FZJ100, 1FZFE)
- Toyota Land Cruiser 100 (J100) 4.2 D [1998 - 2002] (HDJ100, 1HZ)
- Toyota Land Cruiser 200 (J200) 4.5 D-4D [2007 - ...] (VDJ200, 1VDFTV)
- Toyota Land Cruiser 70 (J70) 3.5 D [1990 - 1995] (PZJ70, 1PZ)
- Toyota Land Cruiser 70 (J70) 4.2 D [1990 - 2004] (HZJ70, 1HZ)
- Toyota Land Cruiser 70 (J70) 4.5 [1992 - 2001] (FZJ70, 1FZF)
- Toyota Land Cruiser 70 (J70) 4.5 D-4D [2007 - ...] (VDJ70, 1VDFTV)
- Toyota Land Cruiser 80 (J80) 4.5 [1990 - ...] (FZJ80, 1FZF)
- Toyota Land Cruiser 80 (J80) 4.2 D [1990 - 1998] (HDJ81, 1HZ)
- Toyota Land Cruiser 80 (J80) 4.2 TD [1990 - 1992] (HDJ80, 1HDFT)
- Toyota Lexus LX (J200) 4.5 D-4D [2015 - ...] (VDJ201, 1VDFTV)
- Toyota Lexus LX (J80) 4.5 [1995 - 1998] (FZJ80, 1FZFE)
Technical Specifications
| Brand | TOYOTA |
|---|---|
| Weight | 0.010 kg |
Compatible Vehicles
| Make | Model | Engine | Year | Notes |
|---|---|---|---|---|
| Toyota | Coaster (B40/B50) | 4.2 D (1HZ) | 1993 - ... | GASKET, THERMOSTAT (1HZ) |
| Toyota | Coaster (B60/B70) | 4.2 D (1HZ) | 2017 - 9999 | GASKET, THERMOSTAT (1HZ) |
| Toyota | Land Cruiser 100 (J100) | 4.2 TD (1HDFTE) | 1998 - ... | GASKET, THERMOSTAT (HDJ101, 1HDFTE) |
| Toyota | Land Cruiser 100 (J100) | 4.5 (1FZFE) | 1998 - ... | GASKET, THERMOSTAT (FZJ100, 1FZFE) |
| Toyota | Land Cruiser 100 (J100) | 4.2 D (1HZ) | 1998 - 2002 | GASKET, THERMOSTAT (HDJ100, 1HZ) |
| Toyota | Land Cruiser 200 (J200) | 4.5 D-4D (1VDFTV) | 2007 - ... | GASKET, THERMOSTAT (VDJ200, 1VDFTV) |
| Toyota | Land Cruiser 70 (J70) | 3.5 D (1PZ) | 1990 - 1995 | GASKET, THERMOSTAT (PZJ70, 1PZ) |
| Toyota | Land Cruiser 70 (J70) | 4.2 D (1HZ) | 1990 - 2004 | GASKET, THERMOSTAT (HZJ70, 1HZ) |
| Toyota | Land Cruiser 70 (J70) | 4.5 (1FZF) | 1992 - 2001 | GASKET, THERMOSTAT (FZJ70, 1FZF) |
| Toyota | Land Cruiser 70 (J70) | 4.5 D-4D (1VDFTV) | 2007 - ... | GASKET, THERMOSTAT (VDJ70, 1VDFTV) |
| Toyota | Land Cruiser 80 (J80) | 4.5 (1FZF) | 1990 - ... | GASKET, THERMOSTAT (FZJ80, 1FZF) |
| Toyota | Land Cruiser 80 (J80) | 4.2 D (1HZ) | 1990 - 1998 | GASKET, THERMOSTAT (HDJ81, 1HZ) |
| Toyota | Land Cruiser 80 (J80) | 4.2 TD (1HDFT) | 1990 - 1992 | GASKET, THERMOSTAT (HDJ80, 1HDFT) |
| Toyota | Lexus LX (J200) | 4.5 D-4D (1VDFTV) | 2015 - 9999 | GASKET, THERMOSTAT (VDJ201, 1VDFTV) |
| Toyota | Lexus LX (J80) | 4.5 (1FZFE) | 1995 - 1998 | GASKET, THERMOSTAT (FZJ80, 1FZFE) |
Inquire About This Part
Not sure if this fits? Send us your VIN number and we will double check for you.
Related products & Accessories
These products are frequently purchased together or perfectly complement the selected part.
