Skip to content

WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046

Marsoni M251S
Sale price$39.97
Pay 4 payments of $9.99 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046Item#: 18 15440 Belt, Alternator Water Pump Mercruiser OMC OEM#: 0311046, 49213, 49213A1, 57 45856, 57 93658Q Brand: Sierra FITMENTS: Make Model Year(s) Mercruiser ALL Mercruiser V6 4. 3L ALL Mercruiser V8 305ci 5. 0L ALL OMC I O ALL Note: 44 1 8" Details: BELT LENGTH 44 1 8" USE WITH 5 1 2" WATER PUMP PULLEY
Easy Shipping

Quick Dispatch:

Your WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046 orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046 ships.

Need Help?
Questions about WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for WSM SIERRA - Belt, Alternator / Water Pump Mercruiser / OMC - 18-15440, 0311046 in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1191 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Be safe and always calculate the gauge wire are you need, don’t cut corners.
Size: 4 Gauge 10FT
Good quality solid copper 4 Gauge wires in red and black. Avoid aluminum wiring that has copper plating so looks like solid copper but can be dangerous if used in heavy load applications. Copper is expensive but required if amperage is high.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
J
Verified Purchase
Jenaro Garcia
Louisville, US
★★★★★ 5
Good
Size: 1/0 Gauge 10FT
Good item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
H
Verified Purchase
Hunter
Bozeman, US
★★★★★ 5
Works no issues
Size: 8 Gauge 10FT
Works no issues
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
T
Verified Purchase
TJ Helser
Lake Worth, US
★★★★★ 4
Durable insulation and pure copper not that cca bs
Size: 1/0 Gauge 5FT
Good quality. Solid copper, not that cca bs. Stiff and durable insulation. Used for big 3 car audio grounds on high output alternator. Great results. Will mention that it’s not as thick as some other brands but not by much. Terminals still crimped tightly with 1/0 gauge
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
C
Verified Purchase
chris
Charlottesville, US
★★★★★ 5
Quality wire and true specs
Size: 8 Gauge 10FT
Good quality car audio power wire.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026

recommand products