Features 1、Part Number: According to the original factory specifications, replacing rOEM numbers are 90121‑HN1‑000, 90305‑GE8‑003, 52101‑HP1‑000. 2、Applicable Model: Swing arm pivot bolt nut fit for TRX450R 2004‑2009, fit for TRX450ER 2006‑2014 , and fit for TRX400EX 1999‑2008. 3、Firm Fixing: This is the big bolt that goes through the frame and holds the swingarm onto the frame, includes bolt, nut and washer. 4、High Quality Material: Swing arm bolt nut is made of heavy duty metal and ABS material, high hardness, wear resistant and durable. 5、Perfect Fit: Premium quality replacement parts, stable characteristics, high reliability, direct replacement, no modifications necessary. Specification Item Type: Swing Arm Bolt Material: ABS + metal Replacement OEM Numbers: 90121-HN1-000 and 90305-GE8-003, 52101-HP1-000 Fitment: For TRX450R 2004-2009 For TRX450ER 2006-2014 For TRX400EX 1999-2008 Package List 1 x Swing Arm Bolt