Here are all the options parts for the Xray T4 2018 and olders
Reference 06305823
Brand: XRAY
ALU PINION GEAR - HARD COATED 23T / 64 --- Replaced with #305973 - 30
Reference 06308036
Brand: XRAY
COMPOSITE NON-ADJUSTABLE PISTONS - DELRIN - V3 - 308036
Reference 06308286
Brand: XRAY
XRAY 4S SPRING-SET C=2.6 (2) - 308286
Reference 06309854
Brand: XRAY
PRECISION BALANCING CHASSIS WEIGHT CENTER 30 G - 309854
Reference 06308327-K
Brand: XRAY
ALU CAP FOR XRAY SHOCK BODY #308322 - BLACK (2) - 308327-K
Reference 06965012
Brand: XRAY
E-CLIP 1.2 (10) - 965012
Reference 06304972
Brand: XRAY
ALU GEAR DIFF CVD BB DRIVESHAFT ADAPTER (2) - 304972
Reference 06304973
Brand: XRAY
STEEL GEAR DIFF BB DRIVESHAFT ADAPTER - 304973
Reference 06303124-K
Brand: XRAY
ALU SHIM 3x6x2.5MM - BLACK (10) - 303124-K
Reference 06301203
Brand: XRAY
IMPACT ABSORBING FRONT BUMPER - 301203
Reference 06301210
Brand: XRAY
GRAPHITE BUMPER UPPER HOLDER FOR ADJUSTABLE BODY MOUNTS 2.5MM - 30121
Reference 06301215
Brand: XRAY
GRAPHITE BUMPER UPPER HOLDER BRACE 3.5 MM - 301215