


Balmar Alternator 120 Amp 12V 1-2" Single Foot Single K6 Pulley with Isolated Grounding - 621-120-K6
Marsoni
M251S
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Friday, May 29
Balmar Alternator 120 Amp 12V 1-2" Single Foot Single K6 Pulley with Isolated Grounding - 621-120-K6Balmar Alternator 120 Amp 12V Single Foot with K6 Pulley & Isolated Ground 621 120 K6 The Balmar 621 Series Alternator 120 Amp, 12 Volt (621 120 K6) is a high output marine alternator designed for boats requiring dependable charging power in a compact, engine friendly package. Featuring a 1 2 single foot mount, K6 serpentine pulley, and isolated grounding, this alternator is ideal for modern marine electrical systems with sensitive electronics and
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★★★★★ 5
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Much cheaper than having the dealer install it or even from the auto parts store. Easy to install, took less than 5 minutes.
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Reviewed in the United States on December 11, 2025
★★★★★ 5
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Reviewed in the United States on October 14, 2021
★★★★★ 5
Perfect fit
2015 Honda Fit, does what it’s supposed to. Super easy install. Don’t pay someone $30 to do it at your next oil change. Easy DIY
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Reviewed in the United States on May 28, 2023
★★★★★ 5
good filter
its a good filter. cheaper than manufacturer one in price but it does the same job. recommend change the filter with every oil change for best vehicle performance.
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Reviewed in the United States on May 3, 2023