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
GAMBETTI-BARRE M175903001, CNH-FIAT NEW HOLLAND 79031606, LIEBHERR 4157879, JOHN DEERE T43323, INGERSOLL RAND 57407405, Buldozer, TELCO-TATA TD01583/2, INGERSOLL RAND 56965262, BERCO CR1251A, BENATI 2001074, LIEBHERR 7001485, VPI V7H3597, LIEBHERR 4253410, CATERPILLAR 5H8756, DRESSER-FURUKAWA 3193523R1, LIEBHERR 4097515, DRESSER-FURUKAWA 319325231R1, LANDINI MASSEY FERGUSON 2928705M1, JOHN DEERE T121478, CATERPILLAR, MAIT 2175046, ITM D04100A0N15, CNH-FIAT NEW HOLLAND 79004489, JCB JNA0362, SIMIT 45482377, LANDINI MASSEY FERGUSON 4906550M1, 561B, LANDINI MASSEY FERGUSON 3089873M1, CNH-FIAT NEW HOLLAND 4982171, REEDRILL V005766, TELCO-TATA TD01119/03, INGERSOLL RAND 57700866, VARIOUS 571008, JCB JNA0295, CASE 295318A1, VERMEER 118120001, VOLVO 16545, TELCO-TATA 9TD01583/2, DRESSER 1254380H1, TELCO-TATA 9TD01119/03, SENNEBOGEN 013343, LIEBHERR 4982171, JOHN DEERE CQ09337, A.B.G. 21076286, JOHN DEERE-CAMECO CB01419009, JOHN DEERE T45096, LIEBHERR 4091100, MAIT 2901221, VOLVO 18065840, LANDINI MASSEY FERGUSON 2979121M1, HANOMAG 2979124M, VOLVO 14016545, C.M.W-(CHARLES-MACHINES) 107-365, Surub papuc, BERCO CR1251, LANDINI MASSEY FERGUSON 1430746M1, CATERPILLAR 5W9827, E.W.K. 501518501, CATERPILLAR 7H3597, LANDINI MASSEY FERGUSON 2979939M1, HYUNDAI 81EL-25020, EXTEC VCR1251, LANDINI MASSEY FERGUSON 2979124M1, POCLAIN-CASE POCLAIN W0033071
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
MAIT 2901221, HYUNDAI 81EL-25020, C.M.W-(CHARLES-MACHINES) 107-365, CATERPILLAR 5W9827, REEDRILL V005766, VOLVO 18065840, JOHN DEERE T43323, LIEBHERR 4097515, Buldozer, LANDINI MASSEY FERGUSON 2979124M1, GAMBETTI-BARRE M175903001, CATERPILLAR 5H8756, JCB JNA0362, LANDINI MASSEY FERGUSON 3089873M1, E.W.K. 501518501, TELCO-TATA 9TD01119/03, EXTEC VCR1251, INGERSOLL RAND 57700866, LANDINI MASSEY FERGUSON 2979939M1, SIMIT 45482377, DRESSER 1254380H1, LIEBHERR 4157879, TELCO-TATA TD01583/2, A.B.G. 21076286, VOLVO 16545, LIEBHERR 7001485, JOHN DEERE-CAMECO CB01419009, CNH-FIAT NEW HOLLAND 79031606, LANDINI MASSEY FERGUSON 2928705M1, BERCO CR1251A, CNH-FIAT NEW HOLLAND 4982171, CATERPILLAR 7H3597, DRESSER-FURUKAWA 319325231R1, SENNEBOGEN 013343, VERMEER 118120001, TELCO-TATA 9TD01583/2, JCB JNA0295, VOLVO 14016545, LIEBHERR 4091100, TELCO-TATA TD01119/03, 561B, BENATI 2001074, ITM D04100A0N15, BERCO CR1251, LANDINI MASSEY FERGUSON 2979121M1, VARIOUS 571008, Surub papuc, DRESSER-FURUKAWA 3193523R1, INGERSOLL RAND 56965262, JOHN DEERE T121478, POCLAIN-CASE POCLAIN W0033071, CATERPILLAR, LIEBHERR 4982171, HANOMAG 2979124M, LANDINI MASSEY FERGUSON 4906550M1, MAIT 2175046, JOHN DEERE CQ09337, CNH-FIAT NEW HOLLAND 79004489, CASE 295318A1, VPI V7H3597, LIEBHERR 4253410, JOHN DEERE T45096, LANDINI MASSEY FERGUSON 1430746M1, INGERSOLL RAND 57407405