297-9157: 99.96mm Outer Diameter Recoil Spring Piston
Description: PISTON | Application: 1290T, 1390, 2491, 2590, 325D FM, 325D FM LL, 330, 330B L, 330C, 330C FM, 330C MH, 330D FM, 330D L, 330D MH, 336D L, 336D LN, 340D L, 340D2 L, 345B, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH