AISIN Engine Coolant Thermostat P/N:THM-004

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$27.99

MPN: THM004

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

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AISIN Engine Coolant Thermostat P/N:THM-004

$27.99

Description

Hold your engine at its proper operating temperature with the AISIN Engine Coolant Thermostat THM004, a direct-fit replacement for the 1975-1980 Toyota Land Cruiser (L6-4.2L). This thermostat opens and closes with coolant temperature to regulate flow through the cooling system — staying closed during warm-up and opening to route coolant to the radiator once the engine reaches temperature.

Start-to-open temperature: 82°C (179.6°F), for OE-matched temperature control.
Brass and stainless steel construction: the materials called out in the catalog for this thermostat assembly.
Standard design: maintains cooling system performance by keeping coolant within its intended temperature range.
No jiggle-pin check valve and no gasket or seal included: source a gasket or seal separately as required by the service procedure.

If a stuck or failed thermostat is behind engine overheating or a cabin that never warms up, this assembly replaces it. Country of origin: Japan.

Interchange: 143-0657 · 245-180 · WS73-82A · 90916-03012 · 90916-03014
1430657 · 245180 · WS7382A · 9091603012 · 9091603014 · ME999132 · 13548

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

143-0657, ME999132, 245-180, THM-004, 13548, WS73-82A, 90916-03012, 90916-03014

Frequently Asked Questions

What vehicle does the AISIN THM004 thermostat fit?

It is a direct-fit replacement for the 1975-1980 Toyota Land Cruiser with the L6-4.2L engine. Confirm the fitment for your vehicle before ordering.

At what temperature does this engine coolant thermostat start to open?

It starts to open at 82°C (179.6°F), matching the OE temperature specification for controlled coolant flow.

What is this thermostat made of?

The catalog lists brass and stainless steel construction for this thermostat assembly.

Does it include a gasket, seal, or jiggle-pin check valve?

No. It does not include a gasket or seal, and it does not have a jiggle-pin check valve. Source any required gasket or seal separately per the service procedure.

What are signs this thermostat may need replacing?

Engine overheating, a temperature gauge that never reaches normal, or a cabin heater that stays cold can point to a stuck thermostat. Diagnose the cause before replacing.