Diaphragm Fuel Pump - 18-7817 - Sierra
Replaces OEM part #
- MERCURY MARINE 21-42990A7
- MERCURY MARINE 21-42990A8
- MERCURY MARINE 21-857005A1
I hope this is the right part ? hope its a sera # that is tthe merc # for the 21-857005a1?
Well it cross references with 21-857005A1 if that's what you're asking. So if the OEM number to your fuel pump kit was 21-857005A1 then this will work.
Is item #18-7817 correct kit for 30 HP Mariner, 06447032?
That's not a valid serial number from Mariner. It seems really close, but that second digit is usually a letter. Like 0G447032. Call us at the number at the top of the page with the serial number and we can match it up.
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