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CDI HARNESS, ENGINE ADAPTER JOHNSON / EVINRUDE TO MERCURY - 421-4402
CDI HARNESS, ENGINE ADAPTER JOHNSON / EVINRUDE TO MERCURY - 421-4402
CDI HARNESS, ENGINE ADAPTER JOHNSON / EVINRUDE TO MERCURY - 421-4402
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CDI HARNESS, ENGINE ADAPTER JOHNSON / EVINRUDE TO MERCURY - 421-4402

Marsoni M251S
Sale price$124.94
Pay 4 payments of $31.23 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CDI HARNESS, ENGINE ADAPTER JOHNSON / EVINRUDE TO MERCURY - 421-4402ITEM#: 421 4402 HARNESS, ENGINE ADAPTER JOHNSON EVINRUDE TO MERCURY BRAND: CDI ELECTRONICS FITMENTS: Make Model Year(s) Johnson Evinrude ALL Mercury ALL
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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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4.1 ★★★★★
Based on 1936 reviews
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Product Reviews
F
Verified Purchase
Frank from Baltimore
Lowell, US
★★★★★ 5
Well made, a solid connection.
Size: 6 Pairs / 12 pcs
I liked them. They really lock down on the speaker wire to make a firm connection. They seem well made and are easy to install. My system sounds great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
M
Verified Purchase
Micky
San Leandro, US
★★★★★ 5
Works as intended
Size: 12 Pairs / 24 pcs
These banana plugs are quite easy to use, and securely connected my speaker cables to the receiver. They have a quality feel as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2025
E
Verified Purchase
Eric Doka
Grantham, US
★★★★★ 5
Solid product
Size: 12 Pairs / 24 pcs
High quality. Good connectivity.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
Verified Purchase
Matt B.
Dallas, US
★★★★★ 1
Tips broke in the binding post
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
UPDATE: Two tips broke off when unplugging them from the binding post and are now lodged in. Inexcusable and an utterly poor product. Solid connection in the binding post with no wobble or wiggle. They require some force to insert into the binding post, but once they're in they remain snug. I also tried removing and reinserting a few times and the connection remained solid. I've used other plugs in the past that have a softer tip and easily deform after one or two insertions. These do not have that issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
D
Verified Purchase
Dane W.
Birmingham, US
★★★★★ 5
Great plugs
Size: 2 Pairs / 4 pcs
These are great plugs! Worked like it should!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2024

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