BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | SNOW EXHAUST EXHAUST 512 Y-PIPES (CONT) FITS MODEL FINISH PART # ARCTIC CAT (CONT) F/M/X-Fire 800 HO 10-11 Black (no fuel controller required when used w/ stock pipe, but fuel controller required when used w/ single pipe PART# 1840-0079) 1842-0027 F/M/X-Fire 1000 (all) Black (no fuel controller required except for M1000 07-09 mapping) 1842-0025 Ceramic chrome (no fuel controller required except for M1000 07-09 mapping) 1842-0026 Procross/Proclimb 800/8000 12-17 Black (no fuel controller required when used w/ stock pipe, but fuel controller required when used w/ single pipe PART #s 1840-0081 or 1840-0082) 1842-0029 Ceramic chrome (no fuel controller required when used w/ stock pipe, but fuel controller required when used w/ single pipe PART #s 1840-0081 or 1840-0082) 1842-0030 POLARIS AXYS Rush/Switchback/ RMK 800 15-20 Ceramic chrome (fuel controller required, designed to be used w/ single pipe PART #1841-0090 only and not intended to be used w/ stock single pipe) 1842-0045 AXYS/Matryx-Switchback/RMK/ VR1/XC 850/9R 19-25 Ceramic chrome 1842-0053 SKI-DOO Rev/Summit E-Tec 800 11-16 Black (no fuel modifications required) 1842-0039 Rev/Summit E-Tec 850 17-25 Black 1842-0043 Ceramic chrome 1842-0044 Rev/Summit STD/XP/ E-Tec 600 04-16 Black 1842-0041 Ceramic chrome 1842-0042 Rev/Summit 800 03-07 Black (no fuel modifications normally required) 1842-0037 Ceramic chrome (no fuel modifications normally required) 1842-0038 Rev/Summit XP 800R 08-09 Black (no fuel modifications normally required) 1842-0033 DESCRIPTION PART # Muffler sensor adapter 1861-1262 MUFFLER SENSOR ADAPTER FOR SKI-DOO E-TEC MODELS •Sensor adapter solves peak rpm loss problems •Aluminum finned design dissipates heat to aid in cooling the sensor •Adapter moves the sensor out of the extreme heat inside the muffler, allowing your machine to hold maximum rpm all the time • Threads into muffler, then simply thread the sensor into the adapter • Will not work with the stock muffler, only aftermarket mufflers NOTE: Adapter will cause the sled to run leaner.This is necessary for models which lose peak rpm because the sensor reads too hot.We do not recommend running this adapter unless you notice a problem with your sled. NOTE: Not recommended on 2014 models. 2014 models, or older models with the piston and ECU update should not use this sensor adapter as it will make the sled run too cool. Most 2014 or older models with the updates will be fine with no adapter.Your Ski-Doo dealer now has a re-flash for adding an aftermarket muffler which is highly recommended. DESCRIPTION PART # 1.8” springs 1860-1579 DESCRIPTION PART # 2.5” springs 1860-1580 EXHAUST SPRINGS •Many applications •Recommended for anyone installing exhaust parts on a machine over 1 year old • Ideal for ATV/UTV exhaust, snowmobile mufflers and pipes •These springs are mostly used between snowmobile Y-pipe and single pipe •Available in black •Sold to dealer in 5-packs 1860-1580 1860-1579
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