Set of spring kit for C3W distributor valve, F1 selector valve, MU2B valve consisting of 12items. I. C3W Distributor valve: 1. Spring to Wabco Pt. No. 19187000 and to SIL Part No. 08473641-01No/set. 2. Spring to Wabco Pt. No. 18993100 and to SIL Part No. 08480941-01No/set. 3. Spring to Wabco Pt. No. 19188100 and to SIL Part No. 08472041-01No/set. 4. Outer Spring to Wabco Pt. No. 19199000 and to SIL Part No. 08481241-01No/set. 5. Spring to Wabco Pt. No. 1902700 and to SIL Part No. 08481141-01No