STILLEN Underdrive Lightweight Crank Pulley Nissan Altima 3.5L (07-12) 400344

Fitment Information Nissan Altima 3.5L (2007, 2008, 2009, 2010, 2011, 2012) Specs & Features Note: Pulley 400344 is an underdrive pulley so the customer just needs to get a slightly smaller belt.  We use Gates belt part # K070653 but the customer can use another belt that has 7 ribs and 653mm long. Aluminum CNC Machined at STILLEN OEM Pulley Weight: 4.32 lbs. Underdrive Crank PulleyBillet Product Description STILLEN has long manufactured precision pulleys for our supercharger kits. STILLEN have used this expertise to produce a new line of high performance crank and accessory pulleys.Each pulley is machined from 6061 aerospace grade billet aluminum with a bold new design to maximize performance, strength and minimum weight. 304 stainless steel sleeves are used for main seal contact points for durability. Stock timing marks are maintained and keyways are precision broached. All pulleys are CNC turned, milled and balanced based on computer generated designs.Up to 80% lighter we