Here are all the options parts for the Xray X12 EU-US 2020 and olders
Reference 06303122-K
Brand: XRAY
ALU SHIM 3x6x1.0MM - BLACK (10) - 303122-K
Reference 06305823
Brand: XRAY
ALU PINION GEAR - HARD COATED 23T / 64 --- Replaced with #305973 - 30
Reference 06378098
Brand: XRAY
SHOCK SPRING C=3.1 - BLACK - 4 DOTS - 378098
Reference 06303124-K
Brand: XRAY
ALU SHIM 3x6x2.5MM - BLACK (10) - 303124-K
Reference 06303121
Brand: XRAY
SET OF ALU SHIM (1.0MM, 2.0MM, 3.0MM) - 303121
Reference 06303122
Brand: XRAY
ALU SHIM 3x6x1.0MM (10) - 303122
Reference 06303125
Brand: XRAY
ALU SHIM 3x6x3.0MM (10) - 303125
Reference 06303125-K
Brand: XRAY
ALU SHIM 3x6x3.0MM - BLACK (10) - 303125-K
Reference 06303125-O
Brand: XRAY
ALU SHIM 3x6x3.0MM - ORANGE (10) - 303125-O
Reference 06303126-K
Brand: XRAY
ALU SHIM 3x6x5.0MM - BLACK (10) - 303126-K
Reference 06305822
Brand: XRAY
ALU PINION GEAR - HARD COATED 22T / 64 --- Replaced with #305972 - 30
Reference 06359307
Brand: XRAY
XRAY PREMIUM SILICONE OIL 7000 cSt --- Replaced with #106470 - 359307