Sold out -17% sale
Sierra Qualifies for Free Shipping Sierra Extended Life Coolant 50/50 Gallon #18-9300
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Sierra Sierra Extended Life Coolant 50/50 Gallon #18-9300 $16.72 $19.96
Sierra 18-9300 Engine Coolant Red/Orange in color Provides year-round protection against freezing and boil-over in all water-cooled engines Protects for 2,500 hours or 5 years Hybrid, nitrated HOAT/NOAT formula with ethylene glycol base is compatible with all other coolants the 50/50 is pre-mixed with deionized water Not intended to be diluted Provides excellent metal protection and cavitation protection capabilities Normalized SKU: 189300UPC Code: 808282338206
Sold out -31% sale
Mercury Marine Qualifies for Free Shipping Mercury marine Extended Life Premixed 50/50 Coolant #92-877770K 1
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Mercury Marine Mercury marine Extended Life Premixed 50/50 Coolant #92-877770K 1 $19.34 $27.81
Mercury Marine 92-877770K 1 Engine Coolant Ready to use premixed formula (deionized water) Will not cause gelling Provides anti-freeze protection to -34° F (-36° C); DEX-COOL® compatible Provides warranty protection for all Mercury MerCruiser gasoline engines with closed cooling systems Ethylene glycol-based product Compatible with conventional anti-freeze. Dilution with conventional anti-freeze will reduced extended life benefits Normalized SKU: 92877770K1UPC Code: 745061039575
Sold out -17% sale
Sierra Qualifies for Free Shipping Sierra HD Extended Life Coolant 50/50 1 Gallon #18-9340
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Sierra Sierra HD Extended Life Coolant 50/50 1 Gallon #18-9340 $16.35 $19.52
Sierra 18-9340 Engine Coolant Key Features: Provides year-round protection against freezing and boil-over in all diesel engines Protects for 15000 hours or 7 years Poly organic POAT formula with ethylene glycol base is compatible with all other coolants 50/50 is pre-mixed with deionized water; not intended to be diluted Provides excellent metal protection and cavitation protection capabilities 50/50 Pre-mixed Additional Details: Color: Yellow Normalized SKU: 189340UPC Code: 808282338244
Sold out -18% sale
Sierra Truck Freight - Not Qualified for Free Shipping Sierra Extended Life Coolant 50/50 55 Gallon #18-9305
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Sierra Sierra Extended Life Coolant 50/50 55 Gallon #18-9305 $805.50 $975.42
Sierra 18-9305 Engine Coolant Key Features: Provides year-round protection against freezing and boil-over in all water-cooled engines Protects for 2,500 hours or 5 years Hybrid, nitrated HOAT/NOAT formula with ethylene glycol base is compatible with all other coolants the 50/50 is pre-mixed with deionized water Not intended to be diluted Provides excellent metal protection and cavitation protection capabilities Additional Details: Color: Red/Orange Normalized SKU: 189305UPC Code: 808282338213
Sold out -14% sale
Sierra Truck Freight - Not Qualified for Free Shipping Sierra Sythetic Engine Coolant 50/50 55 Gallon #18-9365
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Sierra Sierra Sythetic Engine Coolant 50/50 55 Gallon #18-9365 $1,345.01 $1,560.21
Sierra 18-9365 Engine Coolant Key Features: 50/50 Pre-mixed This extended life formula utilizes synthetic, propylene glycol Non-toxic protection against freezing and boil-over in all water-cooled engines Protects gas engines for 4,000 hours or 2 years Protects diesel engines for 12,500 hours or 7 years Compatible with all other coolants High-tech poly organic POAT formula Allows engines to maintain optimum engine operating temperature to produce full horsepower Unique additive package Seals pinhole leaks and fissures Excellent metal protection and cavitation protection capabilities Additional Details: Color: Clear Blue Normalized SKU: 189365UPC Code: 808282338275
Sold out -14% sale
Sierra Truck Freight - Not Qualified for Free Shipping Sierra Heavy Duty Extended Life Coolant 55 Gallon #18-9355
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Sierra Sierra Heavy Duty Extended Life Coolant 55 Gallon #18-9355 $1,421.16 $1,648.55
Sierra 18-9355 Engine Coolant Key Features: Provides year-round protection against freezing and boil-over in all diesel engines Protects for 15000 hours or 7 years Poly organic POAT formula with ethylene glycol base is compatible with all other coolants Full Strength Additional Details: Color: Yellow Normalized SKU: 189355UPC Code: 808282338237
Sold out -14% sale
Sierra Truck Freight - Not Qualified for Free Shipping Sierra Extended Life Coolant Full Strength 55 Gallon #18-9325
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Sierra Sierra Extended Life Coolant Full Strength 55 Gallon #18-9325 $1,304.18 $1,512.84
Sierra 18-9325 Engine Coolant Key Features: Provides year-round protection against freezing and boil-over in all water-cooled engines Protects for 2,500 hours or 5 years Hybrid, nitrated HOAT/NOAT formula with ethylene glycol base is compatible with all other coolants Additional Details: Color: Clear Red/Orange Normalized SKU: 189325UPC Code: 808282338190
Sold out -18% sale
Sierra Truck Freight - Not Qualified for Free Shipping Sierra HD Extended Life Coolant 50/50 55 Gallon #18-9345
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Sierra Sierra HD Extended Life Coolant 50/50 55 Gallon #18-9345 $850.23 $1,029.57
Sierra 18-9345 Engine Coolant Key Features: Provides year-round protection against freezing and boil-over in all diesel engines Protects for 15000 hours or 7 years Poly organic POAT formula with ethylene glycol base is compatible with all other coolants The 50/50 is pre-mixed with deionized water; not intended to be diluted Provides excellent metal protection and cavitation protection capabilities 50/50 Pre-mixed Additional Details: Color: Yellow Normalized SKU: 189345UPC Code: 808282338251

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.

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