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
FIAT-HITACHI 71483187, VOLVO 43993, CASAGRANDE 95505002, HITACHI 9147345, PRIESTMAN 1500772, ATLAS-TEREX 855194, LIEBHERR 5000950, Rola de sustinere, LIEBHERR 5205010, BERCO LH27E, BERCO LH696C, HITACHI 9114682, AMERICAN-HOIST 3-003153, 1902EHD, BERCO LH27B, VOLVO 14043993, PRIESTMAN 234404, BERCO LJ696D, BENATI 2104021, BANTAM-KOEHRING 3018.57768, GAMBETTI-BARRE M203910001, DRESSER-FURUKAWA 3372006R91, MAIT 2.175.008, LIEBHERR 5601872, TESMEC T00-2600-127, LIEBHERR 5612673, INGERSOLL RAND 57070997, BERCO SI805, BERCO FT3721, BENATI 2104001, Excavator, LIEBHERR 5618394, DRESSER-FURUKAWA 3380360H91, PMI 960304, BENFRA 005.2027, PMI 960073, VPI VAT250257V, RICHIER 484311865, FAI 820220002, BERCO LH27, BANTAM-KOEHRING 3018.57692, DRESSER-FURUKAWA 3194637R91, DAEWOO 2270-6084, DEMAG 519672, FIAT-HITACHI 71400941, RICHIER 484310665, LIEBHERR 5605668, HITACHI 9097400, CATERPILLAR 8E4579, BANTAM-KOEHRING 422V0036, BERCO LH696, FAI 030.03.001, CATERPILLAR 7T6396, HITACHI 9114619, ATLAS-TEREX, CASAGRANDE 95505023, MAIT 2175008, ITM A7130000Y00, DRESSER-FURUKAWA 3372095R91, ITM A14060A0M00, VOLVO 14043993-6, JOHN DEERE AT250257, DAEWOO 2270-9401A, DAEWOO 200104-00001B, HITACHI 9066690, JOHN DEERE AT201169, LIEBHERR 5612651, HITACHI 9168173, FIAT-HITACHI 71466885
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
LIEBHERR 5205010, ITM A14060A0M00, FIAT-HITACHI 71400941, FAI 820220002, BERCO LH27, DRESSER-FURUKAWA 3380360H91, AMERICAN-HOIST 3-003153, HITACHI 9168173, RICHIER 484311865, DAEWOO 200104-00001B, LIEBHERR 5618394, JOHN DEERE AT250257, BANTAM-KOEHRING 3018.57768, BENATI 2104001, BANTAM-KOEHRING 3018.57692, BERCO LH27B, MAIT 2175008, LIEBHERR 5612673, DAEWOO 2270-9401A, PMI 960304, GAMBETTI-BARRE M203910001, LIEBHERR 5000950, CATERPILLAR 8E4579, JOHN DEERE AT201169, PMI 960073, BERCO SI805, DEMAG 519672, RICHIER 484310665, BERCO FT3721, VOLVO 43993, LIEBHERR 5601872, INGERSOLL RAND 57070997, CATERPILLAR 7T6396, Rola de sustinere, ATLAS-TEREX 855194, HITACHI 9066690, CASAGRANDE 95505023, BENATI 2104021, BERCO LH696, DAEWOO 2270-6084, DRESSER-FURUKAWA 3372006R91, VPI VAT250257V, FIAT-HITACHI 71466885, FAI 030.03.001, BERCO LH696C, MAIT 2.175.008, PRIESTMAN 234404, BERCO LH27E, HITACHI 9114682, Excavator, LIEBHERR 5605668, DRESSER-FURUKAWA 3194637R91, HITACHI 9097400, BERCO LJ696D, 1902EHD, VOLVO 14043993, CASAGRANDE 95505002, LIEBHERR 5612651, ATLAS-TEREX, BANTAM-KOEHRING 422V0036, TESMEC T00-2600-127, DRESSER-FURUKAWA 3372095R91, BENFRA 005.2027, HITACHI 9114619, FIAT-HITACHI 71483187, PRIESTMAN 1500772, ITM A7130000Y00, VOLVO 14043993-6, HITACHI 9147345