mnementh Posted June 29, 2007 Share Posted June 29, 2007 I've an 1998 300TDI and two weeks ago the alternator (AMR4249) died on me. Fine, I thought, might as well upgrade to a 100amp and ordered an AMR4247G which is said to fit the 300TDI. And to my surprise, it won't!! The distance between the mountings is only 68mm when it should be 80mm and there's also 4 mountings instead of 3! Many sparepart sites says it should fit so what am I missing? Have ripped a picture from another forum to show the difference between the alternators. Paddock, LRdirect and many other sites (and some local dealers I've spoken with on phone) lists it as a part for 300TDI. And sure, I could probably bodge together a mounting bracket. But as I sparepart I expect it to be bolt-on? My guess is that Magneti Marelli made some error in a compability-list somewhere? Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2007 Share Posted June 29, 2007 Take it back, the AMR4247 is for a V8 engine & will not fit your 300Tdi as you've found out. if you want a 100amp for your 300Tdi get a AMR4248 hth & Welcome to LR4x4 Quote Link to comment Share on other sites More sharing options...
white90 Posted June 29, 2007 Share Posted June 29, 2007 when you get the correct one(ask for a Discovery one) check the belt alignment as mine was a mm or 2 off and kept chewing the Aux drive belts till I found it (after Mike set me in the right direction) Quote Link to comment Share on other sites More sharing options...
reedx Posted June 29, 2007 Share Posted June 29, 2007 I fitted a 100amp Discovery alternator to my 300Tdi Defender. Part no was YLE10113 and it was a straight swap. Colin -- www.REEDX.net/landrover Quote Link to comment Share on other sites More sharing options...
mmgemini Posted June 29, 2007 Share Posted June 29, 2007 Yes you want the Discovery 300Tdi one. It should be a strait swap over. EXCEPT. Put another length of wire from the alternator to the starter motor terminal. The original wire is just good enough for the 100amp one. mike Quote Link to comment Share on other sites More sharing options...
simonb Posted June 29, 2007 Share Posted June 29, 2007 As said above, Disco 100A from 300Tdi will fit Defender 300Tdi, V8 100A won't, if its from a Disco or Rangie. Most parts places who should know better usually get this wrong.... 65A alternators can be swapped between Defender, Disco, RR. Quote Link to comment Share on other sites More sharing options...
JST Posted June 29, 2007 Share Posted June 29, 2007 is there a 200tdi qick/easy upgrade for alt then? Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2007 Share Posted June 29, 2007 is there a 200tdi qick/easy upgrade for alt then? I fitted a 100amp Marrelli [ex- air cond fitted 300Tdi Discovery] to my 200Tdi & upgraded the wiring sizes to starter & battery. IIRC swapped the pulley & aligned the rear body section to suit the 200Tdi's bracket. Quote Link to comment Share on other sites More sharing options...
JST Posted June 29, 2007 Share Posted June 29, 2007 so 4248 will fit straight on? Quote Link to comment Share on other sites More sharing options...
western Posted June 29, 2007 Share Posted June 29, 2007 You'd have to offer it upto the engine & see, got mine 2nd hand [take-off part] from Sodbury about 7 years ago, no idea what the proper part number was, but it is a 100amp Quote Link to comment Share on other sites More sharing options...
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