This Koyorad radiator steps straight into a Nissan Navara NP300 D23 diesel auto from 2015 on and takes care of engine heat on long hauls. The core stands at 720 mm high and 488 mm wide, so it handles steady coolant flow while you tow or crawl in low range. A 35 mm inlet and 35 mm outlet line up with factory hoses, so the kit works cleanly with the existing cooling setup. Under the skin you get a 27 mm thick core and a 265 mm integrated transmission cooler, so engine and auto share the same cooling real estate without extra hardware. The unit matches OEM spec 214604JA1A, which keeps mounting points and shroud alignment straightforward. That means less mucking about and more time to get out there. For Navara owners wanting solid gear that fits right, this radiator is a smart buy.

• Suits Nissan Navara NP300 D23 diesel automatic models from 2015-onwards
• Direct replacement for OEM radiator reference 214604JA1A
• Core height of 720 mm for strong cooling capacity
• Core width of 488 mm to match factory frontal area
• Core thickness of 27 mm balances flow and heat transfer
• 35 mm inlet and 35 mm outlet to suit original hoses
• Integrated 265 mm transmission cooler for automatic gearbox support
• Compatible with 4x4 touring and towing setups within factory limits
• Koyorad brand radiator built for reliable engine temperature control
• Supplied as a complete radiator assembly ready for fitment

Q: Will this radiator fit my Nissan Navara NP300 automatic from 2015?

Yes, this radiator suits Nissan Navara NP300 D23 diesel automatic models from 2015 onward that match OEM code 214604JA1A. Always compare the 720 mm core height and 488 mm width with your existing unit. Check that your vehicle uses a 35 mm inlet and 35 mm outlet hose size. If those dimensions line up, you are looking at the correct gear.

Q: Does this radiator include a built-in transmission cooler?

Yes, the radiator includes an integrated transmission cooler section measuring 265 mm. This section is designed to work with the automatic transmission lines on the NP300 D23. It helps manage transmission fluid temperature under towing and heavy load. You still need to reconnect the factory lines and refill with the correct spec fluid.

Q: Do I need to replace coolant when installing this radiator?

Yes, you should install fresh coolant when fitting a new radiator. Old coolant can carry debris and may have lost corrosion protection. Draining and refilling with the correct type keeps the 27 mm core passages clean. That helps the 720 mm by 488 mm core maintain proper heat transfer over the long term.

Q: Can I install this radiator at home with basic tools?

Installation can be done at home if you are experienced with cooling systems and have the right tools. You need to safely drain coolant and transmission fluid, remove the old 214604JA1A radiator, and refit all hoses and lines. Any mistake can cause leaks or overheating. Many owners choose a professional mechanic to make sure the setup is right.

Suitable for Nissan Navara NP300 D23 diesel automatic models from 2015-onwards that require radiator reference 214604JA1A. Includes an integrated transmission cooler suited to automatic transmissions. Always confirm core dimensions of 720 mm height by 488 mm width and hose diameters of 35 mm inlet and 35 mm outlet against the existing radiator before installation. Professional installation is recommended and fresh coolant and transmission fluid should be used as specified by the vehicle manufacturer.