The AMR4249 is a 65-amp A127-type alternator responsible for charging the battery and supplying electrical current to all vehicle systems while the engine is running. On 200Tdi and 300Tdi engines, a failing alternator typically presents as a battery warning light, undercharged battery, or dimming electrical components under load. Fitting the correct A127 unit is essential, as amperage rating and mounting configuration are specific to these engine variants. Key Features A127 alternator type rated at 65 amps, matching the original charging system specification for Tdi applications Direct bolt-on replacement using existing mounting points and drive belt - no modification required Supplied to OEM specification, ensuring correct output voltage regulation for 12V vehicle electrics When replacing the alternator, inspect the drive belt, tensioner, and wiring connector for wear or corrosion as a matter of course Vehicle Fitment This alternator fits the Land Rover Defender (1986–2006) with the 300Tdi engine and the Discovery 1 (1989–1998) with the 200Tdi engine, both using the A127 65-amp charging system. Not sure about fitment? Feel free to get in touch at [email protected]