Here are all the options parts for the Xray T4 2018 and olders
Reference 06306198
Brand: XRAY
T4'19 GRAPHITE + BRASS FULLY ADJUSTABLE BATTERY HOLDER - 306198
Reference 06309856
Brand: XRAY
XRAY PURE TUNGSTEN CENTER CHASSIS WEIGHT 30g - 309856
Reference 06309861
Brand: XRAY
SHORT LiPo BALANCING CHASSIS WEIGHT 40G (2) - 309861
Reference 06302537
Brand: XRAY
T4'20 ALU STEERING POST FOR DUAL SERVO SAVER (2) - 302537
Reference 06302548
Brand: XRAY
ALU STEERING PLATE 8.0MM FOR DUAL SERVO SAVER - 302548
Reference 06308308-K
Brand: XRAY
ULP ALU SHOCK ABSORBER-SET - BLACK (2) - 308308-K
Reference 06302257
Brand: XRAY
ALU STEERING BLOCK - BLACK - SWISS 7075 T6 - 302257
Reference 06305308
Brand: XRAY
ECS BB DRIVE SHAFT 52MM - SET - HUDY SPRING STEEL™ - 305308
Reference 06305318
Brand: XRAY
ECS BB DRIVE SHAFT 52MM - HUDY SPRING STEEL™ (2) - 305318
Reference 06305319
Brand: XRAY
ECS BB DRIVE SHAFT 53MM - HUDY SPRING STEEL™ (2) - 305319
Reference 06308327-K
Brand: XRAY
ALU CAP FOR XRAY SHOCK BODY #308322 - BLACK (2) - 308327-K
Reference 06301391
Brand: XRAY
GRAPHITE BODY UPSTOP 2.0MM (2) - 301391