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 18065840, CNH-FIAT NEW HOLLAND, DRESSER 1254380H1, DRESSER-FURUKAWA 3193523R1, CASE 295318A1, LIEBHERR 4097515, TELCO-TATA 9TD01583/2, INGERSOLL RAND 56965262, CATERPILLAR 5H8756, VARIOUS 571008, LANDINI MASSEY FERGUSON 2979121M1, SIMIT 45482377, VPI V7H3597, LANDINI MASSEY FERGUSON 4906550M1, CNH-FIAT NEW HOLLAND 79031606, TELCO-TATA TD01583/2, CATERPILLAR 7H3597, LANDINI MASSEY FERGUSON 3089873M1, Tractor agricol, CNH-FIAT NEW HOLLAND 79004489, JOHN DEERE CQ09337, 70CI, LANDINI MASSEY FERGUSON 1430746M1, LIEBHERR 4091100, LANDINI MASSEY FERGUSON 2979939M1, A.B.G. 21076286, HANOMAG 2979124M, LIEBHERR 4157879, DRESSER-FURUKAWA 319325231R1, MAIT 2901221, CATERPILLAR 5W9827, LIEBHERR 7001485, CNH-FIAT NEW HOLLAND 4982171, JOHN DEERE T121478, C.M.W-(CHARLES-MACHINES) 107-365, VERMEER 118120001, BENATI 2001074, LANDINI MASSEY FERGUSON 2979124M1, LANDINI MASSEY FERGUSON 2928705M1, MAIT 2175046, HYUNDAI 81EL-25020, LIEBHERR 4253410, INGERSOLL RAND 57407405, BERCO CR1251, EXTEC VCR1251, E.W.K. 501518501, ITM D04100A0N15, REEDRILL V005766, SENNEBOGEN 013343, POCLAIN-CASE POCLAIN W0033071, BERCO CR1251A, LIEBHERR 4982171, Surub papuc, INGERSOLL RAND 57700866, TELCO-TATA TD01119/03, GAMBETTI-BARRE M175903001, VOLVO 16545, 554057 UP, JOHN DEERE T45096, VOLVO 14016545, JOHN DEERE-CAMECO CB01419009, JCB JNA0362, JCB JNA0295, JOHN DEERE T43323, TELCO-TATA 9TD01119/03
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
LIEBHERR 7001485, C.M.W-(CHARLES-MACHINES) 107-365, REEDRILL V005766, EXTEC VCR1251, TELCO-TATA 9TD01119/03, JOHN DEERE T43323, GAMBETTI-BARRE M175903001, LANDINI MASSEY FERGUSON 4906550M1, JOHN DEERE T45096, BERCO CR1251A, JOHN DEERE T121478, CASE 295318A1, LANDINI MASSEY FERGUSON 2928705M1, 554057 UP, Surub papuc, CATERPILLAR 5W9827, MAIT 2175046, LANDINI MASSEY FERGUSON 2979939M1, SENNEBOGEN 013343, LIEBHERR 4091100, VOLVO 14016545, INGERSOLL RAND 57407405, DRESSER-FURUKAWA 3193523R1, VOLVO 16545, CATERPILLAR 5H8756, CNH-FIAT NEW HOLLAND 4982171, ITM D04100A0N15, CNH-FIAT NEW HOLLAND 79031606, HANOMAG 2979124M, A.B.G. 21076286, VOLVO 18065840, TELCO-TATA 9TD01583/2, CATERPILLAR 7H3597, JCB JNA0295, LANDINI MASSEY FERGUSON 2979124M1, CNH-FIAT NEW HOLLAND 79004489, LANDINI MASSEY FERGUSON 2979121M1, VARIOUS 571008, LIEBHERR 4253410, LIEBHERR 4097515, JCB JNA0362, JOHN DEERE-CAMECO CB01419009, INGERSOLL RAND 57700866, DRESSER-FURUKAWA 319325231R1, LIEBHERR 4982171, E.W.K. 501518501, VERMEER 118120001, JOHN DEERE CQ09337, LANDINI MASSEY FERGUSON 1430746M1, POCLAIN-CASE POCLAIN W0033071, LANDINI MASSEY FERGUSON 3089873M1, BERCO CR1251, CNH-FIAT NEW HOLLAND, DRESSER 1254380H1, TELCO-TATA TD01583/2, VPI V7H3597, LIEBHERR 4157879, SIMIT 45482377, INGERSOLL RAND 56965262, BENATI 2001074, MAIT 2901221, 70CI, HYUNDAI 81EL-25020, Tractor agricol, TELCO-TATA TD01119/03