In timp ce modelele standard ale Seriei 3 beneficiază de o transmisie hidrostatică cu două viteze, care permite utilajelor să se deplaseze cu viteze cuprinse între 0-20 km/h, noul 121E HTS, împreună cu alte două modele mai mari, utilizează o unitate hidrostatică cu două trepte în combinaţie
BERCO LH696C, PMI 960073, HITACHI 9114682, BERCO LH27, MAIT 2.175.008, AMERICAN-HOIST 3-003153, LIEBHERR 5205010, PRIESTMAN 234404, VOLVO 14043993, JOHN DEERE AT201169, LIEBHERR 5601872, FIAT-HITACHI 71466885, FAI 820220002, BANTAM-KOEHRING 3018.57692, GAMBETTI-BARRE M203910001, CATERPILLAR 8E4579, 640EHD, BERCO LH27B, HITACHI 9147345, FIAT-HITACHI 71400941, MAIT 2175008, PMI 960304, LIEBHERR 5612651, RICHIER 484311865, RICHIER 484310665, HITACHI 9114619, Excavator, LIEBHERR 5618394, DRESSER-FURUKAWA 3372006R91, VOLVO 14043993-6, DRESSER-FURUKAWA 3380360H91, BERCO SI805, DAEWOO 2270-9401A, CATERPILLAR 7T6396, DRESSER-FURUKAWA, HITACHI 9066690, TESMEC T00-2600-127, HITACHI 9168173, ITM A7130000Y00, BENATI 2104021, BERCO FT3721, DEMAG 519672, INGERSOLL RAND 57070997, LIEBHERR 5612673, LIEBHERR 5605668, ITM A14060A0M00, BANTAM-KOEHRING 3018.57768, BERCO LJ696D, HITACHI 9097400, LIEBHERR 5000950, BERCO LH696, FIAT-HITACHI 71483187, FAI 030.03.001, BERCO LH27E, CASAGRANDE 95505023, Rola cu 1 flansa, DRESSER-FURUKAWA 3194637R91, BANTAM-KOEHRING 422V0036, PRIESTMAN 1500772, DAEWOO 2270-6084, BENATI 2104001, DAEWOO 200104-00001B, CASAGRANDE 95505002, JOHN DEERE AT250257, VPI VAT250257V, VOLVO 43993, BENFRA 005.2027, DRESSER-FURUKAWA 3372095R91, ATLAS-TEREX 855194
Utilajul de constructii a fost testat pe santiere aflate la o altitudine mare si in lucrari realizate la temperaturi scazute. Astfel, cumparatorii buldozerului Komatsu D65-17 sunt convinsi ca utilajul va respecta norma Tier 4 in orice imprejurare. Puterea motorului acestui buldozer Komatsu variaza intre 208 si 222
BANTAM-KOEHRING 3018.57692, DAEWOO 2270-9401A, BERCO LH696C, PMI 960304, DRESSER-FURUKAWA 3194637R91, BENATI 2104001, FIAT-HITACHI 71400941, PRIESTMAN 234404, DAEWOO 2270-6084, PMI 960073, HITACHI 9168173, CATERPILLAR 7T6396, ITM A14060A0M00, FIAT-HITACHI 71466885, VPI VAT250257V, BERCO SI805, FIAT-HITACHI 71483187, DRESSER-FURUKAWA, JOHN DEERE AT201169, RICHIER 484311865, MAIT 2175008, LIEBHERR 5605668, Excavator, INGERSOLL RAND 57070997, DRESSER-FURUKAWA 3380360H91, BERCO LH27E, HITACHI 9114682, HITACHI 9097400, BENFRA 005.2027, AMERICAN-HOIST 3-003153, LIEBHERR 5612651, HITACHI 9147345, VOLVO 14043993, VOLVO 43993, BENATI 2104021, PRIESTMAN 1500772, LIEBHERR 5000950, FAI 820220002, VOLVO 14043993-6, HITACHI 9114619, BERCO LH27B, TESMEC T00-2600-127, LIEBHERR 5601872, BERCO LH696, BANTAM-KOEHRING 422V0036, 640EHD, LIEBHERR 5612673, RICHIER 484310665, ATLAS-TEREX 855194, BANTAM-KOEHRING 3018.57768, FAI 030.03.001, DRESSER-FURUKAWA 3372006R91, JOHN DEERE AT250257, CASAGRANDE 95505023, LIEBHERR 5618394, DAEWOO 200104-00001B, BERCO LH27, CASAGRANDE 95505002, Rola cu 1 flansa, CATERPILLAR 8E4579, DEMAG 519672, GAMBETTI-BARRE M203910001, LIEBHERR 5205010, BERCO FT3721, ITM A7130000Y00, DRESSER-FURUKAWA 3372095R91, BERCO LJ696D, MAIT 2.175.008, HITACHI 9066690