R21718 New Sway Blocks Left/Right Fits John Deere 520 620 720 530 630 730 model-M8200DT-F The outer valve spring works

The outer valve spring works in conjunction with the inner valve spring (6I0284) to maintain proper valve seating and timing throughout the engine's operating range

Fits Case Construction & Industrial: 1150B

One New Aftermarket Replacement Hydraulic Selective Control Valve O-Ring Kit Fits John Deere Tractor Models: 1020

Dual Set Bolt

R21718 New Sway Blocks Left/Right Fits John Deere 520 620 720 530 630 730 model-M8200DT-F The outer valve spring worksOne New Aftermarket Replacement Fits John Deere Pair of 3 Point Hitch Sway Blocks (Left and Right) that fits Tractor models: 520, 620, 720, 530, 630, 730. Replaces Part Numbers: R21717 18 (R21718 or F2785R x 1 LH) and (R21717 or F2784R x 1 RH)