{"product_id":"len-performance-ski-shock-arctic-cat-m-series-mountain-cat-54-11001s","title":"Len Performance Ski Shock, Arctic Cat M-Series \/ Mountain Cat \/ Alpha One \/ Catalyst 2014–2026 (54-11001S)","description":"\u003cp\u003eLen Performance LS8-11001 rebuildable ski shock for Arctic Cat mountain sleds: M 6000 \/ 7000 \/ 8000 \/ 9000 (2014–2019), M 8000 Mountain Cat and Mountain Cat Alpha One 154 \/ 165 (2017–2024) and the M 858, HCR and HCX Catalyst 146 \/ 154 \/ 165 (2025–2026), plus the 2015–2017 Yamaha SR Viper MTX \/ STX \/ XTX built on the same chassis. One part number fits either side. At $611.95 each, it is A2D's value pick for a rebuildable, adjustable reservoir mountain ski shock: clicker adjustment, a reservoir and a serviceable design without the cost of a race-level shock.\u003c\/p\u003e\u003cp\u003eOn a mountain sled the ski shocks control how the front end settles on a sidehill and how it absorbs re-entries and stump hits in the trees. This coil-over reservoir shock has 5-click compression and 5-click rebound adjustment, a 130 mm stroke, and a threaded body with locking preload rings so ski pressure can be set for rider weight and snow conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment.\u003c\/strong\u003e Sold each; order two for a pair (Len Performance sells the pair as kit LS8-11001K). Matching Len Performance track shocks for the M-series skid are the 54-11001SF front track shock and 54-11001SR rear track shock. Chassis: Arctic Cat ProClimb (M-series), Alpha One and Catalyst.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment list\u003c\/strong\u003e (Len Performance year\/model lookup, which lists 2014–2015 models)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM-series:\u003c\/strong\u003e 2015 M 6000 153; 2015 M 6000 ES 153; 2015 M 6000 Sno Pro; 2014-2015 M 6000 Sno Pro 153; 2015 M 7000 Sno Pro; 2015 M 7000 Sno Pro 162; 2014-2015 M 8000 153; 2015 M 8000 Kincaid LTD 153; 2015 M 8000 McClure LTD 153; 2014-2015 M 8000 Sno Pro 153; 2014-2015 M 8000 Sno Pro 162; 2014-2015 M 8000 Sno Pro LTD 153; 2014-2015 M 8000 Sno Pro LTD 162; 2014-2015 M 8000 Sno Pro LTD ES 153; 2014-2015 M 8000 Sno Pro LTD ES 162; 2014 M 9000 153; 2014 M 9000 HCR 162; 2014-2015 M 9000 Sno Pro 162; 2014-2015 M 9000 Sno Pro LTD 162\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha:\u003c\/strong\u003e 2015 SR Viper MTX 153; 2015 SR Viper MTX LE 162; 2015 SR Viper MTX SE 153; 2015 SR Viper MTX SE 162; 2015 SR Viper STX DX 141; 2015 SR Viper XTX LE 141; 2015 SR Viper XTX SE 141\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDistributor listings (Dennis Kirk, Lionparts) extend this shock to the 2016–2019 M 6000 \/ 7000 \/ 8000 \/ 9000 (including King Cat and Hardcore), 2017–2019 M 8000 Mountain Cat, 2019–2024 M 8000 Mountain Cat Alpha One 154 \/ 165, 2025–2026 M 858 Alpha One \/ Mountain Cat Alpha One Catalyst 146 \/ 154 \/ 165, 2026 HCR 858 and HCX 858 Catalyst, 2017 Yamaha SR Viper MTX and 2019 \/ 2025 Yamaha Sidewinder MTX LE. Confirm with us for those years before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5-click compression adjustment, tool-free.\u003c\/li\u003e\n\u003cli\u003e5-click rebound adjustment.\u003c\/li\u003e\n\u003cli\u003eAluminum reservoir shock: the remote-style reservoir keeps oil temperature down and damping consistent on long pulls.\u003c\/li\u003e\n\u003cli\u003eFully rebuildable, serviceable shock. Len Performance rebuild kits and replacement parts are available.\u003c\/li\u003e\n\u003cli\u003eHardened chromoly shaft for strength and seal life.\u003c\/li\u003e\n\u003cli\u003eForged aluminum eyelet heads with premium steel and NBR bushings.\u003c\/li\u003e\n\u003cli\u003ePowder-coated spring resists corrosion and holds rate in cold, wet conditions.\u003c\/li\u003e\n\u003cli\u003eThreaded shock body with anodized dual-ring locking preload adjusters: set sag once and it stays set.\u003c\/li\u003e\n\u003cli\u003eSold each.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54-11001S (Len Performance LS8-11001)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM part number replaced\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3703-284 (per distributor listings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShock location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSki (front suspension), fits left or right\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChassis \/ platform\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArctic Cat ProClimb \/ Alpha One \/ Catalyst\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustments\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompression (5) and rebound (5), plus threaded spring preload\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength, extended\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e435 mm \/ 17.13 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength, compressed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305 mm \/ 12.01 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStroke\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e130 mm \/ 5.12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePowder-coated coil spring included, 63 mm \/ 2.49 in diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTop eyelet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 mm ID x 24 mm wide (0.32 in x 0.95 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBottom eyelet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 mm ID x 25.4 mm wide (0.32 in x 1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.55 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRebuild kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLen Performance rebuild kits available; call to confirm the kit number for this shock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eOrdering and installation.\u003c\/strong\u003e Sold each. Ships from stock at our Anchorage shop, or from our distributor's Boise, Idaho warehouse when not on the shelf. In-store pickup is available at checkout. Installation and shock setup are available at A2D Motorsports; call (907) 306-3062 to schedule. Len Performance rebuild kits are available, so the shock can be serviced or re-valved rather than replaced.\u003c\/p\u003e","brand":"Len Performance","offers":[{"title":"Default Title","offer_id":50446062682357,"sku":"54-11001S","price":611.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0267\/9029\/files\/len-54-11001S.jpg?v=1790125969","url":"https:\/\/a2dmotorsports.net\/products\/len-performance-ski-shock-arctic-cat-m-series-mountain-cat-54-11001s","provider":"Shop A2D Motorsports ","version":"1.0","type":"link"}