Sold out -20% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #23-5900
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Sierra Sierra Alternator #23-5900 $366.75 $457.75
Sierra 23-5900 AlternatorsSierra Alternator #23-5900Normalized SKU: 235900UPC Code: 808282290726
-20% sale
Sierra Not Qualified for Free Shipping Sierra Alternator 75a 12v Serpe #18-5882
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Sierra Sierra Alternator 75a 12v Serpe #18-5882 $405.41 $506.00
Sierra 18-5882 AlternatorsSierra Alternator 75a 12v Serpe #18-5882Normalized SKU: 185882UPC Code: 808282291785
-20% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-5929
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Sierra Sierra Alternator #18-5929 $416.09 $519.33
Sierra 18-5929 AlternatorsAlternator #18-5929OEM Interchange:MERCURY MARINE: 892940TCharging System: AlternatorSierra Alternator #18-5929Normalized SKU: 185929UPC Code: 808282265878
Sold out -20% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6454
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Sierra Sierra Alternator 50a 4-Groove Pulley #18-6454 $388.35 $484.70
Sierra 18-6454 Alternators Delco Alternator 50 amp 4-groove pulley Replaces Mallory 9-19112 OEM Interchange:MERCURY MARINE: 875285T1MERCURY MARINE: 881248T02MERCURY MARINE: 889955T01 Interchange:Arco 20840Mallory 9-19112Mercury Marine 834832Mercury Marine 857006TMercury Marine 875285T1Mercury Marine 881248TMercury Marine 889955A03Mercury Marine 8M0064021Mercury Sport Jet 875285T1Mercury Sport Jet 881248TMercury Sport Jet 889955A03 Charging System: AlternatorNormalized SKU: 186454UPC Code: 808282187446
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6451
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Sierra Sierra Alternator #18-6451 $337.86 $429.10
Sierra 18-6451 AlternatorsAlternatorOEM Interchange:INDMAR: 575014Charging System: AlternatorSierra Alternator #18-6451Normalized SKU: 186451UPC Code: 808282187415
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6453 Sierra Not Qualified for Free Shipping Sierra Alternator #18-6453
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Sierra Sierra Alternator #18-6453 $166.67 $211.69
Sierra 18-6453 Alternators Amp Rating: 7SI/70 Mount: Spool Pulley: Serpentine OEM Interchange:PLEASURECRAFT: RA097007C Charging System: AlternatorNormalized SKU: 186453UPC Code: 808282187439
Sold out -22% sale
Sierra Alternator #18-6452
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Sierra Sierra Alternator #18-6452 $250.82 $318.56
Sierra 18-6452 AlternatorsAlternatorOEM Interchange:PLEASURECRAFT: RA097009Charging System: AlternatorSierra Alternator #18-6452Normalized SKU: 186452UPC Code: 808282187422
-20% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6455 Sierra Not Qualified for Free Shipping Sierra Alternator #18-6455
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Sierra Sierra Alternator #18-6455 $464.44 $579.67
Sierra 18-6455 Alternators 5S/I 50 amp Fits: 1.5L and 3.0L For: 200 DFI, 200 DFI/DTS, 225 EFI, Sea Pro, 225 DFI/DTS, 250 EFI OEM Interchange:MERCURY MARINE: 875286A1MERCURY MARINE: 875286TMERCURY MARINE: 881247A1 Charging System: Alternator Normalized SKU: 186455UPC Code: 808282187453
-22% sale
Sierra Not Qualified for Free Shipping Sierra Mercury 70a Alternator Serpentine Belt Hinge Mount #18-6298
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Sierra Sierra Mercury 70a Alternator Serpentine Belt Hinge Mount #18-6298 $270.53 $343.60
Sierra 18-6298 AlternatorsAlternatorOEM Interchange:MERCURY MARINE: 862031TCharging System: AlternatorSierra Alternator #18-6298Normalized SKU: 186298UPC Code: 808282187385
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6293
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Sierra Sierra Alternator #18-6293 $253.40 $321.83
Sierra 18-6293 AlternatorsAlternatorOEM Interchange:MERCURY MARINE: 862031TCharging System: AlternatorSierra Alternator #18-6293Normalized SKU: 186293UPC Code: 808282187378
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6299
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Sierra Sierra Alternator #18-6299 $275.32 $349.67
Sierra 18-6299 AlternatorsAlternatorOEM Interchange:MARINE POWER: 402001Charging System: AlternatorSierra Alternator #18-6299Normalized SKU: 186299UPC Code: 808282187392
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6284
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Sierra Sierra Alternator #18-6284 $205.45 $260.93
Sierra 18-6284 AlternatorsAlternatorCharging System: AlternatorSierra Alternator #18-6284Normalized SKU: 186284UPC Code: 808282126575
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6288
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Sierra Sierra Alternator #18-6288 $308.48 $391.80
Sierra 18-6288 AlternatorsAlternatorOEM Interchange:INDMAR: 575010PLEASURECRAFT: RA097007BCharging System: AlternatorSierra Alternator #18-6288Normalized SKU: 186288UPC Code: 808282187361
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6265
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Sierra Sierra Alternator #18-6265 $267.14 $339.28
Sierra 18-6265 AlternatorsAlternatorOEM Interchange:VOLVO: 3857813Charging System: AlternatorSierra Alternator #18-6265Normalized SKU: 186265UPC Code: 808282126384
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6261
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Sierra Sierra Alternator #18-6261 $267.73 $340.03
Sierra 18-6261 AlternatorsReplacement marine alternator for OMC and Volvo engines. Manufacturer OEM Part # OMC 3860171 OMC 3857561 OMC 3856600 OMC 3854809 OMC 3854182 OMC 987774 Volvo 3856600-6 OEM Interchange:OMC: 3854182OMC: 3854809OMC: 3856600OMC: 3857561OMC: 3860171OMC: 987774VOLVO: 3856600-6VOLVO: 3857561Charging System: AlternatorSierra Alternator #18-6261Normalized SKU: 186261UPC Code: 808282126346
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6263
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Sierra Sierra Alternator #18-6263 $233.67 $296.77
Sierra 18-6263 AlternatorsAlternatorOEM Interchange:UNIVERSAL: 288182UNIVERSAL: 288759Charging System: AlternatorSierra Alternator #18-6263Normalized SKU: 186263UPC Code: 808282126360
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-6260
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Sierra Sierra Alternator #18-6260 $292.99 $372.12
Sierra 18-6260 AlternatorsAlternatorCharging System: AlternatorSierra Alternator #18-6260Normalized SKU: 186260UPC Code: 808282126339
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-5979
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Sierra Sierra Alternator #18-5979 $265.36 $337.02
Sierra 18-5979 AlternatorsAlternatorOEM Interchange:VOLVO: 3860082Charging System: AlternatorSierra Alternator #18-5979Normalized SKU: 185979UPC Code: 808282188146
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-5984
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Sierra Sierra Alternator #18-5984 $298.39 $378.97
Sierra 18-5984 AlternatorsAlternatorOEM Interchange:INDMAR: 575011PLEASURECRAFT: RA097007BCharging System: AlternatorSierra Alternator #18-5984Normalized SKU: 185984UPC Code: 808282187354
-22% sale
Sierra Not Qualified for Free Shipping Sierra Alternator #18-5983
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Sierra Sierra Alternator #18-5983 $297.39 $377.70
Sierra 18-5983 AlternatorsAlternatorOEM Interchange:MERCURY MARINE: 862030TCharging System: AlternatorSierra Alternator #18-5983Normalized SKU: 185983UPC Code: 808282187347

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

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On most orders $149+ to the continental 48 US states.

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