ARCO NEW OEM Premium Replacement Alternator - 20850


ARCO Part # 20850

ARCO NEW OEM Premium Replacement Alternator

Fits: 1.5l & 3.0L Mercury Outboard, 12 Volt, 50 AMP, Internal Fan, Multi-groove serpentine pulley included, Includes wire/plug connector.

Replaces Part Numbers:
DELCO Alternator 8600514
DELCO Alternator 19020704
DELCO Alternator 19020707
MERCURY Alternator 8M0064020
MERCURY Alternator 8M6000803
MERCURY Alternator 828506
MERCURY Alternator 875286A-1
MERCURY Alternator 881247A1
MERCURY Alternator 889956
SIERRA Alternator 18-6455
PROTORQUE Alternator PH300-0031
PROTORQUE Alternator PH200-T010
PROTORQUE Alternator PH200-T015
PROTORQUE Alternator PH200-T016
MPPARTS Alternator TRM0009
MPPARTS Alternator TRM0066


· 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


We believe that the best warranties are the ones you never have to use. However, if we determine an ARCO product to be defective under proper installation and utilization conditions, we are obligated to replace or repair the product or issue a refund of the purchase price. Should a customer endure additional labor costs for a professional installation, ARCO will reimburse said customer. We stand behind our product and its quality.

ARCO Marine is a USA based manufacturer located in Pensacola FL. Established in 1960, we were pioneers in the O/E replacement parts segment and have a reputation synonymous with premium quality and part reliability. We over engineer our parts to exceed and outlast O/E standards, oftentimes engineering out any part deficiencies. We use only the best input components and every part that ships out of our warehouse has been tested prior to boxing which provides us with some of the lowest failure rates in the marine engine parts industry.