This Koyorad radiator JR2128J slots straight into Hilux TGN121 and TGN110 utes running the 2.7L 2TRFE petrol and manual box, with a core that stands 550 mm high and 651 mm wide to match the factory shroud. The 16 mm thick core and 34 mm inlet and outlet necks line up with standard hoses, so you can tackle long highway pulls or slow work in low range without coolant temps creeping up.

The alloy core surface of 550 mm by 651 mm gives plenty of contact area for air passing through the grille, while the plastic side tanks keep weight sensible over the front axle. The 16 mm tube stack is a smart buy for everyday driving and loaded touring, balancing cooling performance with airflow for the engine fan. This setup matches OEM spec 164000C380 dimensions, so the gear bolts into existing mounts without custom brackets.

• Direct-fit Koyorad radiator for Hilux TGN121 / TGN110
• Suits 2.7L 2TRFE petrol manual transmission models
• OEM-style replacement for Toyota part 164000C380
• Core height of 550 mm for strong cooling capacity
• Core width of 651 mm to match factory fan shroud
• Core thickness of 16 mm balancing airflow and heat transfer
• 34 mm inlet and outlet necks to suit standard hoses
• Compatible with existing Hilux mounting points and shrouds
• Includes provision for transmission cooler circuit
• Ideal for work utes and touring setups needing reliable cooling

Q: Does this radiator fit automatic transmission Hilux TGN121 models?

No, this radiator suits manual transmission models only. The listing specifically mentions M/T, which refers to manual transmission. Automatic models usually require different cooler line provisions and mounting details. Always match your VIN and transmission type before ordering to avoid incorrect fitment and downtime.

Q: What engine does this Koyorad radiator suit?

This radiator suits the 2.7L 2TRFE petrol engine. Toyota uses this four-cylinder petrol in TGN121 and TGN110 Hilux models from 05/2015-onward. Matching the engine code 2TRFE is important because diesel and other petrol engines often run different radiator dimensions. Check your build plate or handbook for the exact engine code.

Q: Can I reuse my existing radiator hoses with this unit?

Yes, if they are in good condition and match the 34 mm neck size. The inlet and outlet diameters on this radiator are 34 mm, which aligns with standard hoses on the listed Hilux models. Inspect hoses for cracks, swelling or softness before refitting. Replacing old hoses at the same time can prevent future cooling issues.

Q: Should the cooling system be flushed when installing this radiator?

Yes, a full flush is strongly recommended. Old coolant can carry debris and corrosion that may reduce the efficiency of a new core. A proper flush also helps the new radiator work with fresh coolant at the correct concentration. Following Toyota coolant specifications helps the system handle heat on long climbs and heavy loads.

Suitability: Toyota Hilux TGN121 and TGN110 with 2.7L 2TRFE petrol engine and manual transmission from 05/2015-onwards.

Notes: Check OEM part number 164000C380 against existing radiator before purchase.

Installation: Direct replacement radiator; reuse existing hoses, clamps and mounting hardware where serviceable.

Workshop advice: Flush cooling system and replace coolant to Toyota specification at time of radiator replacement.