The ERR1266 is a fuel injector holder and nozzle assembly for the Land Rover Defender, used on 2.5-litre naturally aspirated and turbocharged diesel engines. The injector delivers a metered, atomised spray of fuel directly into the pre-combustion chamber, and its condition directly affects combustion efficiency, cold starting, and exhaust smoke levels. Worn or blocked nozzles on these engines typically present as hard starting, excessive black or white smoke, rough idle, or reduced power output. Key Features Combined holder and nozzle assembly - replaces the complete injector unit rather than the nozzle tip alone Designed to OEM specification for the 2.5 NA and 2.5 Turbo Diesel indirect injection systems Direct replacement requiring no modification during installation Engines typically run four injectors - confirm the total quantity required before ordering, and inspect copper sealing washers and leak-off pipes at the same time Vehicle Fitment Fits Land Rover Defender models from 1986 to 2006 equipped with the 2.5-litre Naturally Aspirated Diesel or 2.5-litre Turbo Diesel engine. Not sure about fitment? Feel free to get in touch at [email protected]