# ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125]

**Premium Replacement Inboard Alternator with Single Groove Pulley - 12V 55A**

Replacement alternator that will fit O.M.C. Cobra., Prestolite/Motorola, 12 Volt, 55 Amp, Internal regulator, Negative ground, 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:**

BRP-OMC Alternator 983424  
BRP-OMC Alternator 984565  
BRP-OMC Alternator 985465  
BRP-OMC Alternator 985466  
BRP-OMC Alternator 986008  
BRP-OMC Alternator 988247  
BRP-OMC Alternator 3853853  
BRP-OMC Alternator 3854182  
BRP-OMC Alternator 3854809  
BRP-OMC Alternator 3857298  
BRP-OMC Alternator 3860769  
VOLVO Alternator 3850927-9  
VOLVO Alternator 3853853-4  
VOLVO Alternator 3854182-7  
VOLVO Alternator 3854809-5  
VOLVO Alternator 3857298  
VOLVO Alternator 3860173  
VOLVO Alternator 857298  
SIERRA Alternator 18-6260  
SIERRA Alternator 18-6842

**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: 8"H x 8"W x 9"L WT: 11.2 lbs
-   UPC: 693006001395

  
[Quick Guide (pdf)](https://productimageserver.com/literature/quickGuide/97203QG.pdf)

## Details

- **Price:** 311.28 USD
- **Type:** Alternators
- **Tags:** Brand_ARCO Marine, Engine Parts & Service, Engine Parts & Service | Alternators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 311.28 USD | In stock |

## Images

- ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125] ARCO Marine
- ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125] ARCO Marine
- ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125] ARCO Marine
- ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125] ARCO Marine
- ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A [60125] ARCO Marine

---

> Source: [Besafe1st](https://besafe1st.com/products/arco-marine-premium-replacement-inboard-alternator-w-single-groove-pulley-12v-55a-60125)
> Updated: 2026-05-21