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Mercury Marine Replacement 821663-1 Alternator
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Mercury Marine Replacement 821663-1 Alternator

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2-Year Warranty - 30-Day Return Policy. Learn More
Item# 12358N
$144.99
$166.99

Availability: Usually ships the next business day

**All parts are 100% brand new and meet or exceed OEM specifications.**
**Units may differ in color from listing photos and are for U.S. Models only (unless otherwise noted)**
**Fitment information below is accurate to the best of our knowledge and should be used for reference only. If you have any questions about fitment, please call our parts specialist before placing your order. For further assistance call 586-257-1515

Product Description

This unit is SAE J1171 Marine Ignition Protection Certified

Description: Alternator
OEM(s): Mercury Marine
Voltage: 12
Amps: 50
Regulator Clock: 3:00
Fan Location: Internal
Regulator Location: Internal
B+ Terminal: M6x1.00
Polarity: Negative
Pulley Type: Solid
Notes:

Replaces:
Denso 101211-302, 101211-3020, 101211-3021
Mercury Marine 821663, 821663-1, 821663A1

Used On:
Mariner 225 (Carb) GM 3.0L - 183ci - 6cy
Mariner 225 (EFI) GM 3.0L - 183ci - 6cy
Mariner 225 3000cc, 3L/183CI 6-Cyl
Mariner 225 SEA PRO (Carb) GM 3.0L - 183ci - 6cy
Mariner 225 Sea Pro 3000cc, 3L/183CI 6-Cyl
Mariner 250 (EFI) GM 3.0L - 183ci - 6cy
Mariner 250 3000cc, 3L/183CI 6-Cyl
Mercury Marine 225CXL 225H 1994, 1995
Mercury Marine 225CXL 3000cc, 3L/185CI 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225CXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 225CXL Bluewater 225H 1999
Mercury Marine 225CXL Bluewater EFI 225H 1999
Mercury Marine 225CXL EFI 225H 1995
Mercury Marine 225CXL OS 225H 1996, 1997, 1998
Mercury Marine 225CXL OS EFI 225H 1996, 1997, 1998
Mercury Marine 225CXL Saltwater EFI 225H 2000
Mercury Marine 225CXL Seapro 3000cc, 3L/185CI 1996, 1997, 1998
Mercury Marine 225CXXL 225H 1994, 1995
Mercury Marine 225CXXL 3000cc, 3L/185CI 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225CXXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 225CXXL Bluewater 225H 1999
Mercury Marine 225CXXL Bluewater EFI 225H 1999
Mercury Marine 225CXXL EFI 225H 1995
Mercury Marine 225CXXL OS 225H 1996, 1997, 1998
Mercury Marine 225CXXL OS EFI 225H 1996, 1997, 1998
Mercury Marine 225CXXL Saltwater EFI 225H 2000
Mercury Marine 225L 225H 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225L 3000cc, 3L/185CI 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225L 3000cc, 3L/185CI 1996, 1997, 1998, 1999, 2000
Mercury Marine 225L EFI 225H 1996, 1997, 1998, 1999, 2000
Mercury Marine 225XL 225H 1994, 1995
Mercury Marine 225XL 3000cc, 3L/185CI 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225XL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 225XL Bluewater 225H 1999
Mercury Marine 225XL Bluewater EFI 225H 1999
Mercury Marine 225XL EFI 225H 1995
Mercury Marine 225XL OS 225H 1996, 1997, 1998
Mercury Marine 225XL OS EFI 225H 1996, 1997, 1998
Mercury Marine 225XL Saltwater EFI 225H 2000
Mercury Marine 225XXL 225H 1994, 1995
Mercury Marine 225XXL 3000cc, 3L/185CI 1994, 1995, 1996, 1997, 1998, 1999
Mercury Marine 225XXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 225XXL Bluewater 225H 1999
Mercury Marine 225XXL Bluewater EFI 225H 1999
Mercury Marine 225XXL EFI 225H 1995
Mercury Marine 225XXL OS 225H 1996, 1997, 1998
Mercury Marine 225XXL OS EFI 225H 1996, 1997, 1998
Mercury Marine 225XXL Saltwater EFI 225H 2000
Mercury Marine 250CXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 250CXL Bluewater EFI 250H 1999
Mercury Marine 250CXL EFI 250H 1995
Mercury Marine 250CXL OS EFI 250H 1996, 1997, 1998
Mercury Marine 250CXL Saltwater EFI 250H 2000
Mercury Marine 250CXXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 250CXXL Bluewater EFI 250H 1999
Mercury Marine 250CXXL EFI 250H 1995
Mercury Marine 250CXXL OS EFI 250H 1996, 1997, 1998
Mercury Marine 250CXXL Saltwater EFI 250H 2000
Mercury Marine 250XL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 250XL Bluewater EFI 250H 1999
Mercury Marine 250XL EFI 250H 1995
Mercury Marine 250XL OS EFI 250H 1996, 1997, 1998
Mercury Marine 250XL Saltwater EFI 250H 2000
Mercury Marine 250XXL 3000cc, 3L/185CI 1995, 1996, 1997, 1998, 1999, 2000
Mercury Marine 250XXL Bluewater EFI 250H 1999
Mercury Marine 250XXL EFI 250H 1995
Mercury Marine 250XXL OS EFI 250H 1996, 1997, 1998
Mercury Marine 250XXL Saltwater EFI 250H 2000
Mercury Marine 3.0 CXL SeaPro 225H 1999, 2000, 2001
Mercury Marine 300CL Promax Racing 3000cc, 3L/185CI 1998, 1999, 2000
Mercury Marine 300CL Promax Racing 300H 1998, 1999, 2000
Mercury Marine 300CXL Promax Racing 3000cc, 3L/185CI 1998, 1999, 2000
Mercury Marine 300CXL Promax Racing 300H 1998, 1999, 2000
Mercury Marine 300L Promax Racing 3000cc, 3L/185CI 1998, 1999, 2000
Mercury Marine 300L Promax Racing 300H 1998, 1999, 2000
Mercury Marine 300XL Promax Racing 3000cc, 3L/185CI 1998, 1999, 2000
Mercury Marine 300XL Promax Racing 300H 1998, 1999, 2000


MCR PART NUMBER: 12358N

**PROP 65 - This product may expose you to chemicals such as Lead, Carbon Black, Silica, Crystalline which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov**.

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