Kohler Highline Two-Piece Toilet vs Kohler Cimarron Two-Piece Toilet: Which Should You Buy?

The Kohler Highline and the Kohler Cimarron are two of the most cross-shopped two-piece toilets in the brand's lineup, and it is easy to see why buyers get stuck. Both use 1.28 gallons per flush, both hit the top MaP score of 1000, and both sit at comfort height with elongated bowls. On paper they look like twins. Look closer and the differences come down to the flush canister, the surface glaze, and where each one lands in Kohler's value ladder. We compared the manufacturer specifications side by side and folded in what owners consistently report, so you can match the right bowl to your bathroom instead of guessing.

If you want the wider context on how this maker fits against Toto and American Standard, our Kohler brand guide breaks down the full range. This page stays focused on the head to head.

Kohler Highline vs Cimarron at a glance

The table below lists only values confirmed against Kohler specification sheets and current retailer listings. Both models ship in more than one bowl shape and trip-lever position, so treat the shape row as the common configuration rather than the only option.

How the two flush systems differ

This is the real dividing line. The Highline runs Kohler's Class Five canister, which uses a wide flush valve to move a big slug of water into the bowl quickly. It is a proven, no-drama system that has powered Kohler toilets for years, and it earns the same MaP 1000 rating as its stablemate. The Cimarron uses the AquaPiston canister with Revolution 360 flushing. That design lets water enter the bowl from all sides of the rim through a 3 to 2 flush valve ratio, which is Kohler's way of squeezing more rinsing coverage out of the same 1.28 gallons.

In practice both clear waste in a single flush for the vast majority of households, which is exactly what a MaP 1000 result predicts. If you have never seen that number before, our explainer on what a MaP score means covers why 1000 grams is the ceiling and why anything at that level is considered a strong flusher. The AquaPiston canister also has one durability angle worth noting: Kohler states it exposes far less seal material than a traditional flapper, which owners tend to link to fewer slow leaks over time.

Kohler Highline: the value workhorse

The Highline is the model most people picture when they think of a plain, dependable Kohler toilet. The elongated comfort height version sits at roughly a 16-1/2 inch rim, uses a standard 12 inch rough-in, and carries a fully glazed 2-1/8 inch trapway that helps waste clear cleanly. It is WaterSense certified at 1.28 GPF and ADA compliant when installed to code. There is nothing flashy here, and that is the point. It is the toilet you spec when you want Kohler reliability without paying for extras you may not use.

Owners generally praise the Highline for quiet, complete flushes and easy parts availability, since Class Five components are stocked almost everywhere. The trade-offs are modest. The standard glaze does not resist mineral scale as aggressively as the Cimarron's coating, and the tank-to-bowl profile is a touch more utilitarian than the sculpted Cimarron. For rentals, secondary baths, and budget-minded remodels, those are easy compromises.

• Pros: MaP 1000 flush, WaterSense 1.28 GPF, comfort height, widely available parts, strong value.
• Cons: Standard glaze without scale-resistant coating, plainer styling, seat sold separately on most listings.

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Kohler Cimarron: the step-up sibling

The Cimarron covers the same fundamentals and then layers on refinements. It is a 1.28 GPF, WaterSense, ADA compliant comfort height toilet with a 12 inch rough-in and a 2-1/8 inch trapway, and it also reaches MaP 1000. Where it separates from the Highline is the AquaPiston canister described above plus a CleanCoat surface treatment that resists water scale and mineral staining, which can mean fewer hard-water rings between cleanings. Some Cimarron configurations also add a skirted trapway for a smoother, easier-to-wipe base, and Kohler's quick-connect hardware speeds up the tank set.

Owners who choose the Cimarron usually cite the cleaner look and the lower maintenance surface as the reasons. It is the toilet that reads as a small upgrade in a primary bathroom or a full remodel. The honest caveat is that the core flush performance is not meaningfully better than the Highline on paper, since both share the same MaP result and water use. You are paying for glaze quality, canister design, and styling rather than raw flushing muscle.

• Pros: MaP 1000 flush, AquaPiston canister, CleanCoat scale-resistant glaze, skirted options, refined styling.
• Cons: Costs more than the Highline for a similar flush result, seat often sold separately, heavier to handle during install.

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Water use, MaP and certifications

On efficiency the two are identical. Each toilet uses 1.28 gallons per flush, which is the WaterSense threshold and 20 percent below the older 1.6 gallon federal standard. Neither offers a dual-flush or a 1.6 gallon variant in these comfort height models, so if you specifically want the extra rinse volume of a full 1.6 gallon fixture you would look elsewhere. For most homes the 1.28 rate is the sweet spot, and our breakdown of 1.28 GPF versus 1.6 GPF explains why the water savings rarely cost you flush power at the MaP 1000 level.

Both models also carry the same MaP 1000 result, meaning independent testing showed each clearing 1000 grams of solid waste in a single flush, the maximum the test measures. That parity is the single most important takeaway of this comparison. When two toilets tie at the top MaP score and share the same water use and certifications, the decision moves to fit, finish, and budget rather than flushing ability.

Installation, height and fit

Fit is a wash between the two. Both need the common 12 inch rough-in, both sit at comfort height for easier standing and sitting, and both are elongated in their popular configurations, which adds about an inch and a half of bowl length over a round front. Measure from your finished wall to the center of the floor bolts before buying either one, and confirm you have room for the elongated bowl in tight powder rooms.

As two-piece toilets, both are easier to carry upstairs and cheaper to repair than a one-piece, since the tank and bowl ship separately and common internals are simple to swap. The Cimarron's quick-connect tank hardware and optional skirted base can make setup and cleaning a little nicer, while the Highline keeps things conventional. Neither includes a seat on most listings, so budget for one either way.

Who should buy which

Choose the Kohler Highline if value and simplicity lead your list. It delivers the same MaP 1000 flush and 1.28 GPF efficiency as its pricier sibling, uses parts you can find anywhere, and suits rentals, secondary baths, and cost-aware remodels perfectly. It is the safe default when you want proven Kohler performance and nothing you will not use.

Choose the Kohler Cimarron if you want the small upgrades to matter every day. The CleanCoat glaze that resists hard-water stains, the AquaPiston canister with its 360 degree rinse, the smoother skirted options, and the more finished look all justify the step up in a primary bathroom or a showcase remodel. Just go in knowing you are paying for finish and design, not a stronger flush. Either way you are buying a top-tier flusher, and both models earn a place on our roundup of the best flushing toilets for good reason.

Related Guides

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• What Is A MaP Score
• 1.28 GPF vs 1.6 GPF