Coolant Thermostat Housing for Toyota SU001A0226

Product Overview

A Thermostat Housing Assembly for Toyota vehicles, held against OEM SU001A0226 and SU00100713. In service the part carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. The coolant control circuit gives this part a hard life: heat soak, vibration and pressure cycling. Typical end-of-life signs are seals that take a set after repeated heat cycles and cracked plastic housings, which reach the workshop as a gauge that never settles in the normal band, higher fuel consumption and thermostat fault codes. We hold it as part of a cooling-system range of more than 4000 types built for the independent aftermarket in Europe, the Middle East and South America.

Key Benefits

• Checked on the features that matter — Inspection concentrates on the opening temperature, the housing outline and whether the unit is map-controlled — the dimensions that put a part back in the box if they are wrong.
• Matched to how the part actually fails — Seals that take a set after repeated heat cycles and cracked plastic housings are the reasons this reference is bought, so those are the features checked before packing.
• Export packing as standard — The range ships to Europe, the Middle East and South America, so cartons are packed for long sea legs rather than for a local van run.
• Ordered by reference not by photo — The listing carries OEM SU001A0226 and SU00100713. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.

Application Scenarios

Rebuild of an obsolete platform

The original reference is no longer produced, so the part is made from a supplied sample. On this reference that means quoting SU001A0226 with the quantity and letting the packing follow.

Mixed container for a distributor

A quarterly container is filled across families — intake, charge air, coolant and thermostat lines — to a single packing list. With SU001A0226 on the list the rest of the coolant control circuit can be priced at the same time.

Scheduled cooling-system overhaul

The vehicle is in for a coolant leak and the workshop replaces the whole branch at once rather than chasing the next failure in a month. Here the thermostat housing assembly is ordered against SU001A0226 and travels with the rest of the Toyota branch.

Who It Is For

• Aftermarket distributors — stocking cooling-system lines for Toyota across a regional network and needing a reference-accurate catalogue behind the shelf. What they need from SU001A0226 is that it fits the Toyota on the ramp today.
• Workshop and fast-fit chains — replacing thermostat housing assemblys on Toyota daily and judging a supplier on whether the part fits first time. What they need from SU001A0226 is that it fits the Toyota on the ramp today.
• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. SU001A0226 earns its shelf space through repeat demand on Toyota platforms.

Problems It Solves

Reference mismatch

Visually identical parts carry different connector geometry between model years. Quoting OEM SU001A0226 and SU00100713 fixes the identity before money moves. With SU001A0226 the check is the opening temperature, the housing outline and whether the unit is map-controlled, and it happens before despatch.

Split ordering

Sourcing one hose from one supplier and the matching flange from another doubles the freight and the paperwork for the same repair. On SU001A0226 that is settled before the quotation goes out.

Parts that are no longer produced

When the original reference is dropped, the repair still exists. Sample-based production and mould development keep the line alive. On SU001A0226 that is settled before the quotation goes out.

Technical Features

The part serves the coolant control circuit and carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. Material for this reference is confirmed per enquiry. The listed opening temperature is 83°C, which is the figure that has to match the vehicle.

Matched to the circuit the part serves. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM SU001A0226 and SU00100713 against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the opening temperature, the housing outline and whether the unit is map-controlled before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

4. Fit with the original clamp style

   Reuse the clamp type the Toyota platform was designed around, and fit any seal or O-ring supplied with SU001A0226 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for cracked plastic housings at working temperature before the vehicle leaves.