Description
Premium Replacement Alternator with Single Groove Pulley – 12V, 55A
Premium replacement alternator that will fit late model Mercruiser, 12 Volt, 55 Amp, Internal regulator. 2-inch mounting foot. Single groove pulley included.
Features:
- All alternators are engineered for performance and reliability
- All alternators are engineered and manufactured with precision and quality
- All alternators must meet or exceed OEM performance before being boxed
Warranty Information:
When properly installed, all ARCO products are warrantied against defects in materials and workmanship for a period of 12 months for leisure use and 90 days for commercial or racing applications.
Add an extra year of warranty to your rotating electric ARCO product (Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters) when you register your product within 30 days of purchase. You can register your product by visiting arcomarine.com/product-registration
Replaces:
MARINE POWER Alternator 1210-000
MERCURY Alternator 12449
MERCURY Alternator 78403A1
MERCURY Alternator 78403A2
MERCURY Alternator 817119A1
MERCURY Alternator 817119A4
MERCURY Alternator 92497A3
MERCURY Alternator 98555
MERCURY Alternator 98555A1
SIERRA Alternator 18-5957
SIERRA Alternator 18-5966
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Specifications:
- Amperage: 55A
- Voltage: 12v
- Box Dimensions: 7″H x 8″W x 8″L WT: 9.75 lbs
- UPC: 693006001258
Quick Guide (pdf).embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
Explore more from our collection.
![Arco Marine Premium Replacement Alternator W/Single Groove Pulley - 12V, 55A [60050] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/arco-marine-premium-replacement-alternator-w-single-groove-pulley-12v-55a-60050-1-01.webp)
![Arco Marine Premium Replacement Alternator W/Single Groove Pulley - 12V, 55A [60050] 2](https://automotivecenter.shop/wp-content/uploads/2026/05/arco-marine-premium-replacement-alternator-w-single-groove-pulley-12v-55a-60050-2-02.webp)
![Balmar Pulley Kit F/Yanmar 3Jh5, 3Jh4-E, 4Jh4-E, 4Jh5, 4Jh5-E [48-Ysp-3Jh-A] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/balmar-pulley-kit-f-yanmar-3jh5-3jh4-e-4jh4-e-4jh5-4jh5-e-48-ysp-3jh-a-1.webp)
![Balmar Pulley Kit, Yanmar 4Jh4-Hte-Te-Dte [48-Ysp-4Jh-B] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/balmar-pulley-kit-yanmar-4jh4-hte-te-dte-48-ysp-4jh-b-1.webp)
![Balmar Pulley Kit F/Yanmar 2Gm20-F, 3Gm30-F, 3Gm-F [48-Ysp-3Gm-B] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/balmar-pulley-kit-f-yanmar-2gm20-f-3gm30-f-3gm-f-48-ysp-3gm-b-1.webp)
Reviews
There are no reviews yet.