This eccentric crank arm is a replacement part for Stairmaster/Nautilus E916 and 5100 ellipticals. It fits both the left and right OEM crank arm part#s 40784 and 40783.
Use it when you need a direct-fit replacement for the eccentric crank arm on compatible equipment. For more replacement components, browse our Other Replacement Parts.
You may also want to view related parts such as the Ball Bearing, 608Zz.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.