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
VOLVO 14043993, HITACHI 9066690, DAEWOO 2270-6084, HITACHI 9114682, CASAGRANDE 95505002, CATERPILLAR 7T6396, HITACHI 9168173, DAEWOO 200104-00001B, GAMBETTI-BARRE M203910001, PRIESTMAN 1500772, JOHN DEERE AT201169, LIEBHERR 5000950, LIEBHERR 5618394, CASAGRANDE 95505023, VOLVO 14043993-6, DRESSER-FURUKAWA 3380360H91, BENATI 2104001, DRESSER-FURUKAWA 3372006R91, RICHIER 484311865, BERCO LJ696D, ATLAS-TEREX 855194, MAIT 2.175.008, PMI 960073, BENATI 2104021, BERCO LH696C, 5AF -1-UP, CATERPILLAR 8E4579, ITM A7130000Y00, FAI 820220002, DEMAG 519672, HITACHI 9147345, LIEBHERR 5205010, Rola cu 1 flansa, BERCO FT3721, BANTAM-KOEHRING 422V0036, LIEBHERR 5601872, HITACHI 9114619, BANTAM-KOEHRING 3018.57692, BERCO SI805, DRESSER-FURUKAWA 3194637R91, BERCO LH27, FIAT-HITACHI 71466885, VOLVO 43993, BENFRA 005.2027, LIEBHERR 5612673, DAEWOO 2270-9401A, LIEBHERR 5612651, DRESSER-FURUKAWA 3372095R91, PMI 960304, VPI VAT250257V, BERCO LH27B, INGERSOLL RAND 57070997, FIAT-HITACHI 71400941, HITACHI 9097400, 235C, BERCO LH696, RICHIER 484310665, MAIT 2175008, Excavator, AMERICAN-HOIST 3-003153, LIEBHERR 5605668, FIAT-HITACHI 71483187, CATERPILLAR, TESMEC T00-2600-127, BERCO LH27E, BANTAM-KOEHRING 3018.57768, ITM A14060A0M00, FAI 030.03.001, PRIESTMAN 234404, JOHN DEERE AT250257
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
HITACHI 9114619, CATERPILLAR 8E4579, Rola cu 1 flansa, MAIT 2.175.008, 235C, DRESSER-FURUKAWA 3194637R91, FIAT-HITACHI 71400941, BERCO LH27B, CATERPILLAR 7T6396, DAEWOO 2270-6084, LIEBHERR 5000950, ATLAS-TEREX 855194, BERCO LH27E, MAIT 2175008, RICHIER 484311865, CATERPILLAR, BENATI 2104021, HITACHI 9147345, ITM A14060A0M00, PMI 960073, PMI 960304, FIAT-HITACHI 71483187, FIAT-HITACHI 71466885, RICHIER 484310665, LIEBHERR 5612651, BERCO SI805, HITACHI 9097400, DAEWOO 200104-00001B, CASAGRANDE 95505023, VOLVO 14043993, LIEBHERR 5605668, DRESSER-FURUKAWA 3372006R91, 5AF -1-UP, PRIESTMAN 234404, LIEBHERR 5601872, PRIESTMAN 1500772, DRESSER-FURUKAWA 3380360H91, BANTAM-KOEHRING 3018.57768, BERCO LJ696D, VOLVO 14043993-6, INGERSOLL RAND 57070997, BERCO LH696C, HITACHI 9114682, JOHN DEERE AT250257, VOLVO 43993, CASAGRANDE 95505002, HITACHI 9066690, VPI VAT250257V, JOHN DEERE AT201169, BENFRA 005.2027, BERCO FT3721, ITM A7130000Y00, BERCO LH696, DRESSER-FURUKAWA 3372095R91, FAI 820220002, GAMBETTI-BARRE M203910001, AMERICAN-HOIST 3-003153, BERCO LH27, FAI 030.03.001, LIEBHERR 5205010, Excavator, DEMAG 519672, HITACHI 9168173, LIEBHERR 5612673, BENATI 2104001, BANTAM-KOEHRING 422V0036, TESMEC T00-2600-127, DAEWOO 2270-9401A, LIEBHERR 5618394, BANTAM-KOEHRING 3018.57692