Product Details
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
Specifications:
- Amperage: 55A
- Voltage: 12v
- Box Dimensions: 8"H x 8"W x 9"L WT: 11.2 lbs
- UPC: 693006001395
Quick Guide (pdf)

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