NO FREIGHT, SET UP and deeper discounts SAVINGS OF $3,550!
Carve tighter lines and throw bigger premium rooster tails with the ultimate quick-handling backcountry weapon—the 2026 Arctic Cat Mountain 858 154 SP ES."
| MSRP | $18,249 |
|---|---|
| Freight | $750 |
| Setup | $200 |
| Factory Discount | ($750) |
| Empire Discount | ($2,800) |
| Documentation fee | $200 |
 | $15,849 |
Estimated out-the-door: $— (price + tax + licensing)
Sales tax and licensing are editable estimates (defaults: 9% off-road, 9.5% street; $191.75 licensing) — your actual amounts depend on your address and registration. Estimate for illustration only; not an offer or guarantee of financing, which depends on approved credit.
Like this payment? We'll confirm your real numbers on this machine — current rates, no obligation.
The 2026 M 858 Sno Pro 154 ES isn’t just another mountain sled—it’s a precision instrument built for the most technical backcountry terrain. By pairing the revolutionary CATALYST chassis with the purpose-built 858 engine, Arctic Cat has created a sled that is 10% lighter than previous 800-class models and offers an unmatched 11% boost in power.
Interested in this one? Send your questions below and we'll get right back to you. A $500 deposit will hold it in your name — just say the word and we'll take it by phone.
This unit: 2026 ARCTIC CAT MTN 858 154 SP ES (Stock #A100218-C)
AIAsk anything about this 2026 MTN 858 154 SP ES — Empire AI answers straight from its official owner's manual, with the exact page.
Answers come from the official owner's manual. For anything urgent, call us at (509) 892-6368.
The biggest engine in the 850 class — an 858cc two-stroke twin on the light new Catalyst chassis, with the acclaimed Alpha One single-beam rear suspension. Here's the honest look against the mountain-sled benchmarks.
Arctic Cat858 Mountain Our pick | Ski-DooSummit X 850 E-TEC | PolarisRMK Khaos 850 | Ski-DooFreeride 850 | |
|---|---|---|---|---|
| Engine | 858cc twin | 849cc twin | 840cc twin | 849cc twin |
| Power approx. | ~180 hp* | ~165 hp | ~165 hp | ~165 hp |
| Mountain rear suspension | Alpha One single-beam | tMotion | React | tMotion |
| Chassis | Catalyst (light) | REV Gen5 | Matryx Slash | REV Gen5 |
| Track options | 154″ / 165″ | 154″/165″ | 155″/165″ | 146″/154″ |
| Price starting MSRP | from ~$16,999 | ~$16,949 | ~$16,799 | ~$16,499 |
The biggest engine in the class and the mountain skid riders rave about — the underdog that genuinely competes.
And the price is the price. Our advertised number already includes freight, setup and our documentation fee — only sales tax and title/registration are added.
The biggest engine in the class and the mountain skid riders rave about — the underdog that genuinely competes. At 858cc, the in-house two-stroke twin is the largest of the 850-class mountain sleds — Arctic Cat cites an 11% output gain over the previous 800, with strong low-end for deep-snow pulls.
Be honest: the Ski-Doo Summit and Polaris RMK dominate the mountain market — far bigger followings, dealer networks and aftermarket, and both are proven 165-hp benchmarks. Arctic Cat is the underdog, and it doesn't publish an official horsepower number. But the 858's displacement, the Alpha One skid and the new Catalyst chassis make it a genuine contender, often at a competitive price.
Empire Cycle & Powersports in Spokane Valley, WA stocks the Arctic Cat 858 Mountain with Up Front Pricing — freight, setup and our documentation fee are already in the advertised price. Text us at 509-498-3541 or browse the inventory online.
Figures are 2026 model-year from manufacturer and published sources; competitor specs and prices are approximate, vary by trim and market, and should be verified before purchase. MSRPs exclude tax and title/registration. Video links are independent third-party YouTube reviews for research; Empire Cycle & Powersports is not affiliated with the creators. Comparison by Empire Cycle & Powersports, Spokane Valley, WA.
Stock #: A101367-D-C
Stock #: A101370-C
SAVE $3,750Stock #: A100708
SAVE $3,650Stock #: A100824-C
The price you see already includes freight, setup and our documentation fee — only sales tax and title/registration are added. No hidden dealer add-ons, no games. It's the honest way to buy, and it's simply how we do it.
Every purchase comes with honest, sourced research — how your model really stacks up against the competition on price, features and value. We even tell you where the competition wins. No spin, just the facts, so you can buy with confidence.
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