Corona Clipper Compound Tree Pruner Spring 6801-5 Go to amazon.com Related posts Top 9 corona pruner spring for 2022 FeatureOriginal Corona replacement pullySpring fits Corona Pruner TP6830, TP6850, TP6870, TP6780 and TP5850 DescriptionReplacement pulley fits Corona Pruner TP6830, TP6850, TP6870, TP6780 and TP5850