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Thread: 3 prong vs. 4 prong flasher relays?

  1. 03-20-2017, 04:03 PM #1
    TWJ
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    3 prong vs. 4 prong flasher relays?

    At the parts suppliers websites I see both a 3 prong and a 4 prong flasher/turn signal relay for my '72 911...what is the difference?

    I also see different part numbers for the 4 prong... 90161830311 and 91461830311...again, what is the difference?
    '66 911 - Light Ivory | Early '66 with Solex Carbs
    '72 911T - Aubergine originally | now Bahia Red | "S" options | 2.2S P&C's
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  2. 03-21-2017, 05:54 AM #2
    30westrob
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    For your 72 911 the 914 part no is correct per factory spare parts catalogue. I suspect the 901 no is for earlier cars. I have heard bad things about about URO flasher. Rob
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