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Holley EFI Systems Wiring Harnesses LS2/3/7

Marsoni M251S
Sale price$283.98
Pay 4 payments of $71.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Holley EFI Systems Wiring Harnesses LS2/3/7This part is legal for sale or use on Racing Use Only Vehicles The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. Emissions This part is legal for sale or use on Racing Use Only Vehicles The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 384 reviews
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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Well made materials.
Arrived on time and well packaged. Good quality materials and exact fit. Perfect fit, Easy to install. Make sure to review installation instruction. Don't put the gaskets in the wrong place. Will buy again from this vender.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
O
Verified Purchase
Outdoorfun
Belleville, US
★★★★★ 5
Good for the $$$
Worked great on my Mercruiser Alpha One Gen 2. Once the bottom unit of the outdrive is off and cleaned it only takes a few minutes to install impeller, seals and housing. A very affordable alternative to taking it to the shop.
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Reviewed in the United States on September 22, 2025
F
Verified Purchase
FrankieJ
Carnegie, US
★★★★★ 5
Fit perfectly and very complete set of parts
Had everything I needed plus some extra parts in the kit. I probably could have just replaced the impeller for slightly less but while everything was disassembled you might as well replace the works. Included - Water Pump Impeller, Housing, Key, Face Plate, Face Plate Gasket, O-Ring, Seal Face and Carrier Assembly Oil Seal
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Reviewed in the United States on October 28, 2025
C
Verified Purchase
chris null
Carnegie, US
★★★★★ 5
Water impeller kit
Worked perfectly for my ‘02 Rinker Captiva 212 with the 5.7 Mercruiser Aloha one outdrive !
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Reviewed in the United States on October 9, 2025
J
Verified Purchase
Jmac
Grantham, US
★★★★★ 4
Good quality, but could have used better instructions
The kit was complete, and all the components were well made. However, if you aren't somewhat mechanical, it would be fairly easy to install the gaskets and backing plate in the wrong sequence. With better instructions, this would be a 5 star plus kit.
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Reviewed in the United States on July 31, 2025

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