The selected Hilux offer is EGR cooler No.1 only. It does not contain the electronic EGR valve or actuator. A broad “EGR assembly” description should not turn a component-only package into a complete system.
Confirm which component the workshop has identified as necessary, then compare the actual cooler, application and supplied contents.
Keep the stated GUN126 application
The GUN126 1GD EGR cooler No.1 uses reference 25681-0E010. It is listed for GUN126/GUN126R utes with the 2.8L 1GD-FTV diesel engine, 10/2015–04/2020.
Other regional sourcing specifications, engines, later build ranges and different cooler assemblies need separate checking. A Hilux name or 1GD family label should not remove a reference or connection mismatch.
Check the cooler body and actual pipe directions
The source views show the rectangular exchanger, two bent coolant pipes, gas flange and mounting bosses/tabs. Compare their directions and positions from corresponding views. A pipe hidden behind the body needs another photograph, not an assumed shape.
The image does not provide an unlisted internal construction, flow specification or pressure-test procedure. Keep the physical selection check separate from diagnosis.
Read every exclusion before comparing offers
The electronic valve, actuator, additional pipes, hoses, coolant, gaskets and installation hardware are not included. Ask the installer which additional service items are required; do not assume a gasket arrives because another cooler offer includes one.
The No.1 label identifies the selected component. It is not a claim that this offer supplies every cooler or EGR component fitted to the vehicle.
Make the component request precise
Send the VIN, actual build month, engine, original cooler reference and accessible complete and detail photographs of pipes, flange and mounts. Have the workshop diagnose the complaint and use the vehicle-specific fitting and commissioning procedure. This guide does not prescribe cleaning or repair steps.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.