Created with Eselt - Mobile Optimized Listing Designs for Sellers Copyright 2019 -JOP Eselt - Mobile Optimized Listing Designs for Sellers Our Store Seller Profile Feedbacks Save this seller Contact Created with Eselt - Mobile Optimized Listing Designs for Sellers Wheel Horse 520-HC 520-H Tractor Onan P220G 20hp Engine Flywheel Mount Bolt OEM Part Number: 57-8150 (replaces NN10021), NN10422, 59-0740 (replaces NN10335) Part SKU#: WH-23512 -- this is NOT a part number! Based on the part # 57-8150 (replaces NN10021), NN10422, 59-0740 (replaces NN10335) , this will fit the following models: 520-H, 520-HC This part may also fit some models that are not listed. If you would like to know if this part will fit your tractor or engine, please email us the tractor model and serial number and the engine model and spec or type number. Some parts only fit certain serial numbered tractors, so please email any questions about fitment before bidding. Even if the part looks the same, it may not be the same. Item Condition: Good usable condition. This item is: Used Item Weight: 0.00 lbs. 5.00 oz. This part is: Guaranteed for 30 days from the date of receipt. Created with Eselt - Mobile Optimized Listing Designs for Sellers Copyright 2020 - Joes Outdoor Power Links Our Store Seller Profile Feedbacks Save this seller Contact Newsletter Don't miss any offers! We will inform you about our offers and promotions by email. Subscribe to newsletter Contact Please use messaging Its easy to find us on the internet Powered by SixBit's eCommerce Solution