Fuel Pump Relay Compatibility - Defender Source
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Old June 26th, 2016, 12:27 PM
minch77's Avatar
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1997/Defender 90 SW
Join Date: Jun 2008
Location: Edison, NJ
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Fuel Pump Relay Compatibility

I have a 1997 NAS Defender 90 and after changing/updating almost the entire fuel system it randomly won't start. It turns over strong but it does not get fuel. If I let it alone for about 8 hours it MAY start. I'm down to getting a new relay. The part number on the 1997 D90 NAS is YB10041C. I can only find that part "used" online. However, my search turned up YWB100820LG which is for 1999 Discovery I--"new" condition. I see Atlantic British says the 99 Disco relay is compatible with the 97 D90. I have bought 99 Disco parts for the 97 D90 in the past and they worked so I know there are compatible parts---I'm just looking for confirmation from anyone's prior experience. I'm skeptical about buying a "used" relay off of ebay.

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Old June 26th, 2016, 12:57 PM
Jymmiejamz's Avatar
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1995 D90 SW #365
Join Date: Sep 2010
Location: Brooklyn, NY
Posts: 3,426
I've got a good one you can borrow for testing purposes if you want.

Car Camping Collective founding member and Treasurer
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Old June 26th, 2016, 06:21 PM
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frank stein "frankie" in action RIP
Join Date: Jun 2006
Location: east coast
Posts: 856
in a pinch a regular 5 prong 30/40 amp bosh fog light relay works.
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