If you want a dedicated replacement coolant reservoir for your CFMOTO 800NK motorcycle, choose Squynkade Auxiliary Water Tank; if you need a ready-to-use gallon of premium extended-life coolant specifically designed to protect stationary generators, choose Arbor King Genuine GM109949. These two items serve completely different mechanical ecosystems, and confusing them would be a costly mistake. One is a hard-shell plastic container meant to hold fluid, while the other is the actual fluid itself. You cannot swap them. For a family road trip where reliability on two wheels is non-negotiable, having the correct tank to maintain your bike's cooling system is just as critical as ensuring your backup generator at home runs smoothly when the power goes out. The choice here isn't about which brand has more stars or which one is cheaper today; it is about matching the exact component to the exact machine you own.
• Squynkade Auxiliary Water Tank: Its biggest strength is its precise engineering to fit the CF800 and 800NK series motorcycles as a direct replacement kettle. Its trade-off is that it is strictly a single-function part with no versatility outside those specific bike models. This pick is for the rider who needs to restore their cooling system capacity after a leak or loss of the original pot.
• Arbor King Genuine GM109949: Its biggest strength is its long-life formula offering up to 12,000 hours of service life and protection against extreme temperatures from -34ºF to 265ºF. Its trade-off is that it is a liquid consumable for generators, not a hardware part for a motorcycle. This pick is for the homeowner protecting their Kohler or compatible stationary generator engines.
• The Bottom Line: Do not buy the Squynkade if you are looking for liquid, and do not buy the Arbor King if you are trying to fix a cracked water reservoir on your bike.
This component is a specialized piece of hardware designed for a very specific niche in the motorcycling world. It is an auxiliary water tank, often referred to as a coolant pot or kettle, built specifically to replace the factory unit on CFMOTO 800NK and CF800 models. When you ride a high-performance street bike like the 800NK, the cooling system is under constant stress. If your original reservoir cracks, leaks, or gets damaged, the engine temperature can spike dangerously fast. This Squynkade unit restores that essential capacity, acting as the holding vessel that keeps your engine cool during long rides.
It comes as a single unit in one color, focusing entirely on form and function without unnecessary fluff. Because it is identified as a direct fit for the CF800 and 800NK series, installation should be straightforward for anyone familiar with basic motorcycle maintenance. It does not require any special additives or mixing; it simply holds the coolant that flows through your radiator and engine block. It is a passive but vital component that ensures your bike doesn't overheat.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-06 · 7 min read · Independent comparison
You should buy this if you own a CFMOTO 800NK or CF800 and have discovered that your current auxiliary water tank is compromised. It is also the right choice if you are performing a full cooling system overhaul and want a reliable, model-specific replacement part. However, you should skip this product entirely if you are looking for a universal tank, a fluid additive, or anything that fits a car, truck, or generator. It will not work on any vehicle other than the specified CFMOTO models. If you are shopping for a family road trip and your bike's cooling system is failing, this is the part you need to get back on the road safely.
While the Squynkade is a container, the Arbor King Genuine GM109949 is the lifeblood of a stationary generator's cooling system. This is not a tank you mount on a frame; it is a gallon of premixed 50/50 blend coolant engineered for extended life. It is manufactured by Kohler, a name synonymous with reliable power generation, and is formulated to protect generator engines under normal operating conditions. The key selling point here is longevity; this formula provides an in-service life of up to 12,000 hours or six years, whichever comes first. That means less frequent draining, flushing, and refilling compared to traditional green coolants.
The chemistry behind this fluid is robust. It uses a premium hybrid organic acid technology (HOAT) combined with specialized additives to guard against corrosion, cavitation, and wear. Crucially, it is NAP-free, meaning it contains no nitrites, amines, or phosphates, which makes it safe for all standard coolant system components without needing supplemental coolant additives. It comes ready to use, mixed with water, so there is no guesswork involved in dilution ratios. The performance range is impressive, offering boil-over protection up to 265ºF with a 15 psi radiator cap and freeze protection down to -34ºF.
You should buy this if you own a stationary generator that requires Kohler GM109949 specifications. It is ideal for keeping your home backup power running smoothly during storms or extended outages, especially if you live in areas with extreme weather fluctuations. The large volume of one gallon covers a significant portion of many generator systems. On the other hand, you must skip this product if you are trying to fix a motorcycle, fill a car radiator, or top off a lawn tractor engine. It is not a universal fluid. If you are planning a family road trip and rely on a generator for campsite power, having a gallon of this premium coolant on hand ensures your electricity stays on even if the grid fails.
• Best for Motorcycle Cooling Reservoirs → Squynkade Auxiliary Water Tank. Only this item replaces the physical tank on your CFMOTO 800NK.
• Best for Generator Fluid Protection → Arbor King Genuine GM109949. Only this item provides the necessary chemical protection for stationary engines.
• Best for Longevity and Service Intervals → Arbor King Genuine GM109949. Offers up to 12,000 hours of service life compared to a simple replacement part.
• Best for Direct Fit Replacement → Squynkade Auxiliary Water Tank. Engineered specifically for the dimensions and mounting points of the CF800 series.
• Best for Extreme Temperature Range → Arbor King Genuine GM109949. Handles heat up to 265ºF and freezing down to -34ºF.
• Best for "Ready-to-Use" Convenience → Arbor King Genuine GM109949. Comes premixed 50/50, requiring no additional water or additives.
• Best for Specific Model Compatibility → Squynkade Auxiliary Water Tank. Designed exclusively for CFMOTO bikes, not a universal fit.
• Best for Preventing Corrosion in Generators → Arbor King Genuine GM109949. Uses HOAT technology to stop rust and wear in generator blocks.
I would buy the Squynkade Auxiliary Water Tank if I were riding my CFMOTO 800NK on a family road trip because a cracked reservoir stops the journey immediately. A broken tank is a hard failure that leaves you stranded, whereas a generator issue usually happens when you are not traveling. However, for maintaining a home generator, I would choose the Arbor King Genuine GM109949 for its extended life and advanced chemical protection. In my opinion, these products solve different problems entirely. You cannot mix them up. If your bike needs a new tank, grab the Squynkade. If your generator needs fresh fluid, grab the Arbor King. Get the wrong one, and you will waste money and time.
No, Arbor King GM109949 is a liquid coolant for stationary generators, not a replacement part for a motorcycle. You need the Squynkade tank to hold the fluid, but you must purchase the appropriate motorcycle coolant separately.
Unlike the Arbor King fluid which has a 12,000-hour lifespan, the tank itself is a structural component that lasts until it physically breaks or degrades due to age and vibration.
Yes, the Arbor King Genuine GM109949 is a 50/50 blend that is fully formulated and ready to use straight from the one-gallon container, requiring no additional water or additives.
No, the Squynkade Auxiliary Water Tank is identified specifically as compatible only with CF800 and 800NK motorcycle models. It will not fit vehicles outside this specific manufacturer and model range.
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