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
JCB JNA0086, LIEBHERR 4129303, MECALAC 5230071, MAIT 2904108, JCB JNA0358, Piulita, DRESSER-FURUKAWA 1254381H1, TELCO-TATA TD01583/3, KOMATSU 00131437, LANDINI MASSEY FERGUSON 2961659M1, TELCO-TATA 9TD01583/3, LIEBHERR 4982173, JOHN DEERE CQ09338, Excavator, BENATI 2001015, JOHN DEERE-CAMECO CB01419006, REEDRILL V005767, CASE R25688, CNH-FIAT NEW HOLLAND 79004490, LIEBHERR 7001334, A.B.G. 21076294, JOHN DEERE T43322, LANDINI MASSEY FERGUSON 2928706M1, VOLVO 14526392, DRESSER-FURUKAWA 3150627R1, LIEBHERR 4111100, WIRTGEN 43499, CNH-FIAT NEW HOLLAND 71401387, LANDINI MASSEY FERGUSON 2979125M1, DAEWOO 9121-7004, HYUNDAI 81E6-37030, GAMBETTI-BARRE M175903002, BERCO CR1250B, SAMSUNG-H.I. 9112-01201, HYUNDAI, DAEWOO K1043367, POCLAIN-CASE POCLAIN P2434592V, POCLAIN-CASE POCLAIN V2434592, JCB 200/61801, ATLAS-TEREX 0362007, LANDINI MASSEY FERGUSON 392826X1, BERCO CR1250, CNH-FIAT NEW HOLLAND 79009851, R160LC-9, LANDINI MASSEY FERGUSON N1926, ITM D01060C0N17, SENNEBOGEN 3528013331, INGERSOLL RAND 57700858, DRESSER 260714R1, TELCO-TATA 9TD01119/04, LIEBHERR 7402313, POCLAIN-CASE POCLAIN K0134536, C.M.W-(CHARLES-MACHINES) 107-364, CATERPILLAR 5W9828, E.W.K. 501518401, MAIT 2175047, LIEBHERR 4122664, CNH-FIAT NEW HOLLAND 4982173, HANOMAG 2979125M, LIEBHERR 7001439, VARIOUS 571009, DAEWOO 2121-6014, VOLVO 020005225990, VOLVO 14044062, DAEWOO 9121-6005, CNH-FIAT NEW HOLLAND 579383, KOMATSU 131437, EXTEC VCR1250, BENATI 2001075, LIEBHERR 4174947, VOLVO 044062, SIMIT 45482379, HYUNDAI 81EL-25030, LANDINI MASSEY FERGUSON 1430747M1, POCLAIN-CASE POCLAIN PK134536, TELCO-TATA TD01119/04, VOLVO 44062, VERMEER 1181230011, CATERPILLAR 1M1408, LARSEN & TOUBRO V20134541, JOHN DEERE T45097, INGERSOLL RAND 56965270, EURODAEWOO 9121-6005D11, LIEBHERR 4253411, VPI V1M1408, DRESSER 616209C1, VOLVO SA9112-12001, VOLVO 9112-12001, POCLAIN-CASE POCLAIN ZKI134536, DRESSER 311347R2
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
JOHN DEERE T45097, MAIT 2904108, BENATI 2001015, POCLAIN-CASE POCLAIN ZKI134536, DRESSER 616209C1, LIEBHERR 7001334, LIEBHERR 7402313, LANDINI MASSEY FERGUSON 2961659M1, JCB 200/61801, KOMATSU 131437, DRESSER-FURUKAWA 1254381H1, TELCO-TATA 9TD01583/3, Excavator, R160LC-9, KOMATSU 00131437, DRESSER 260714R1, CATERPILLAR 1M1408, HYUNDAI 81EL-25030, CNH-FIAT NEW HOLLAND 79004490, CATERPILLAR 5W9828, BERCO CR1250, HYUNDAI, MAIT 2175047, POCLAIN-CASE POCLAIN K0134536, POCLAIN-CASE POCLAIN PK134536, LIEBHERR 4174947, DAEWOO K1043367, SIMIT 45482379, TELCO-TATA TD01119/04, CNH-FIAT NEW HOLLAND 71401387, C.M.W-(CHARLES-MACHINES) 107-364, VERMEER 1181230011, VOLVO 14526392, VPI V1M1408, A.B.G. 21076294, DAEWOO 2121-6014, VOLVO 020005225990, VOLVO 044062, SAMSUNG-H.I. 9112-01201, LIEBHERR 4253411, POCLAIN-CASE POCLAIN V2434592, CASE R25688, ATLAS-TEREX 0362007, LIEBHERR 4122664, POCLAIN-CASE POCLAIN P2434592V, LARSEN & TOUBRO V20134541, VOLVO 44062, LIEBHERR 7001439, VOLVO 14044062, JCB JNA0358, DRESSER-FURUKAWA 3150627R1, LANDINI MASSEY FERGUSON 392826X1, SENNEBOGEN 3528013331, Piulita, ITM D01060C0N17, VOLVO 9112-12001, LANDINI MASSEY FERGUSON 2979125M1, TELCO-TATA 9TD01119/04, LIEBHERR 4129303, EXTEC VCR1250, E.W.K. 501518401, DRESSER 311347R2, LANDINI MASSEY FERGUSON 2928706M1, WIRTGEN 43499, LANDINI MASSEY FERGUSON 1430747M1, REEDRILL V005767, HANOMAG 2979125M, LIEBHERR 4111100, CNH-FIAT NEW HOLLAND 4982173, LIEBHERR 4982173, GAMBETTI-BARRE M175903002, BENATI 2001075, VOLVO SA9112-12001, JOHN DEERE T43322, BERCO CR1250B, TELCO-TATA TD01583/3, CNH-FIAT NEW HOLLAND 579383, MECALAC 5230071, JOHN DEERE-CAMECO CB01419006, INGERSOLL RAND 57700858, DAEWOO 9121-6005, JOHN DEERE CQ09338, EURODAEWOO 9121-6005D11, DAEWOO 9121-7004, CNH-FIAT NEW HOLLAND 79009851, HYUNDAI 81E6-37030, JCB JNA0086, INGERSOLL RAND 56965270, VARIOUS 571009, LANDINI MASSEY FERGUSON N1926