WSM SIERRA - Belt, Alternator Mercruiser - 18-15480, 48122, 48122Q, 57-48122

WSM SIERRA - Belt, Alternator Mercruiser - 18-15480, 48122, 48122Q, 57-48122

Marsoni

M251S

$36.97

Get it in 3 business days with 1 day shipping. Friday, May 29

WSM SIERRA - Belt, Alternator Mercruiser - 18-15480, 48122, 48122Q, 57-48122Item#: 18 15480 Belt, Alternator Mercruiser OEM#: 48122, 48122Q, 57 48122, 57 48122Q Brand: Sierra FITMENTS: Make Model Year(s) Mercruiser 7. 4 Liter V8 370 1978 1987 Mercruiser 7. 4 Liter V8 454 1994 1997 Mercruiser 8. 2 Liter V8 502 1990 1997 Mercruiser V8 427 1969 1972 Note: 47 7 8" Details: BELT LENGTH 47 7 8"

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This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 29, 2026

Verified Purchase

Nicholas K

Waukegan, US

★★★★★ 5

Great filter

Size: AF259

This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 19, 2026