GLM 74000 replacement parts

Mercury Marine 78403A 1 replacement parts
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Your Price: $167.40
Save: $59.37
(26% Off $226.77)
Part # 18-5956 ValueShip™ Eligible
Replaces OEM part #
(1-wire)(No Core)(68 AMP)
Single wire connection fits Mercruiser and many other applications
Equipped with fan and drive pulley
Your Price: $26.07
Save: $11.53
(30% Off $37.60)
Part # 18-5750-9 ValueShip™ Eligible
Pkg. of 10
Supplied complete with Terminal Connector
Replaces OEM part #
  • OMC 581027
  • OMC 580339
Your Price: $171.33
Save: $13.62
(7% Off $184.95)
Part # 20102 ValueShip™ Eligible
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Fits: Mercruiser, O.M.C.
12 Volt, 70 Amp; Self exciting internal regulator
Ignition protection screens
Internal regulator
Negative ground 1-wire connection
Single groove pulley included
Today's increased electrical loads and more sophisticated electronics demand improved performance, greater reliability, and higher output from the electrical generating system. ARCO's creative engineering offers a 105 Amp series as the means to a totally efficient electrical system.
SEE PART NUMBERS 60121 60122 60124 60126
Average Customer Review for Alternator - 18-5956 - Sierra
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by John from High Springs, Florida on October 30, 2012
This is the exact one I was looking for. Happy we were able to find a perfect match. Thanks for the quick service.
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Full StarFull StarFull StarFull StarFull StarSpark Plug Boot
by Gerald from Seatac, Washington on December 12, 2012
I work on alot of old outboard motors. With this part along with the Universal Spark Plug Wire Kit I can bring the spark back to the old motors.
(1 of 2 people found this review helpful)
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Can I use the Universal Spark Plug Boot - 18-5752 - Sierra as well, I like the newer type terminal connector vs this spring type?
Yes, either spark plug boot will work. It just depends on your preference, whether you want to use the clip-on type, or the spring-type.
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