Here are all the spare parts for the Xray XB4 2018 and olders
Reference 06972030
Brand: XRAY
SILICONE O-RING 3x2 (10) - 972030
Reference 06362004
Brand: XRAY
DIFF BULKHEAD BLOCK SET FRONT - NARROW - 362004
Reference 06364920
Brand: XRAY
COMPOSITE GEAR DIFFERENTIAL COVER - LARGE VOLUME - 364920
Reference 06303129
Brand: XRAY
"COMPOSITE SET OF SHIMS 3x 3x6x1MM; 1x 3x6x2MM (2) - 303129"
Reference 06303431-K
Brand: XRAY
ALU 4.9MM BALL END - BLACK (2) - 303431-K
Reference 06362220-H
Brand: XRAY
COMPOSITE C-HUB 9° DEG. LEFT - HARD - 362220-H
Reference 06362250-H
Brand: XRAY
COMPOSITE STEERING BLOCK - HARD - 362250-H
Reference 06362400
Brand: XRAY
ANTI-ROLL BAR 1.0MM SET - 362400
Reference 06362478
Brand: XRAY
ANTI-ROLL BAR 1.8 MM - 362478
Reference 06362540
Brand: XRAY
ALU SERVO SAVER MAIN SHAFT - 362540
Reference 06363240
Brand: XRAY
BALL UNIVERSAL 5.8MM WITH BACKSTOP (2) - 363240
Reference 06364023
Brand: XRAY
COMPOSITE CENTRAL BULKHEAD - LOW - 364023