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
R160LCD-9, ITM D01060C0N17, LANDINI MASSEY FERGUSON 2961659M1, CASE R25688, LIEBHERR 4982173, POCLAIN-CASE POCLAIN P2434592V, JOHN DEERE T45097, MAIT 2904108, ATLAS-TEREX 0362007, LIEBHERR 4174947, MAIT 2175047, LARSEN & TOUBRO V20134541, INGERSOLL RAND 56965270, KOMATSU 00131437, MECALAC 5230071, SENNEBOGEN 3528013331, VOLVO SA9112-12001, SIMIT 45482379, BERCO CR1250, TELCO-TATA TD01583/3, DAEWOO 9121-7004, LANDINI MASSEY FERGUSON 2979125M1, EURODAEWOO 9121-6005D11, LIEBHERR 7001439, CNH-FIAT NEW HOLLAND 79009851, CATERPILLAR 5W9828, E.W.K. 501518401, BERCO CR1250B, INGERSOLL RAND 57700858, POCLAIN-CASE POCLAIN V2434592, WIRTGEN 43499, Piulita, VPI V1M1408, JOHN DEERE CQ09338, POCLAIN-CASE POCLAIN K0134536, LIEBHERR 7001334, HYUNDAI 81EL-25030, JOHN DEERE T43322, CNH-FIAT NEW HOLLAND 79004490, DAEWOO 9121-6005, TELCO-TATA 9TD01119/04, CNH-FIAT NEW HOLLAND 4982173, Excavator, BENATI 2001015, DRESSER-FURUKAWA 1254381H1, KOMATSU 131437, BENATI 2001075, JCB 200/61801, LANDINI MASSEY FERGUSON 2928706M1, JOHN DEERE-CAMECO CB01419006, DAEWOO K1043367, CNH-FIAT NEW HOLLAND 71401387, LANDINI MASSEY FERGUSON 1430747M1, VARIOUS 571009, VOLVO 9112-12001, VERMEER 1181230011, LIEBHERR 4111100, DRESSER 616209C1, POCLAIN-CASE POCLAIN ZKI134536, VOLVO 14526392, VOLVO 44062, DRESSER 260714R1, REEDRILL V005767, SAMSUNG-H.I. 9112-01201, HYUNDAI, LANDINI MASSEY FERGUSON N1926, DAEWOO 2121-6014, GAMBETTI-BARRE M175903002, POCLAIN-CASE POCLAIN PK134536, TELCO-TATA 9TD01583/3, VOLVO 020005225990, HYUNDAI 81E6-37030, LIEBHERR 4253411, C.M.W-(CHARLES-MACHINES) 107-364, TELCO-TATA TD01119/04, LIEBHERR 7402313, A.B.G. 21076294, DRESSER 311347R2, EXTEC VCR1250, LIEBHERR 4122664, VOLVO 14044062, HANOMAG 2979125M, LANDINI MASSEY FERGUSON 392826X1, JCB JNA0358, CATERPILLAR 1M1408, DRESSER-FURUKAWA 3150627R1, VOLVO 044062, JCB JNA0086, LIEBHERR 4129303, CNH-FIAT NEW HOLLAND 579383
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
VOLVO 14044062, TELCO-TATA 9TD01119/04, JCB 200/61801, POCLAIN-CASE POCLAIN K0134536, Excavator, TELCO-TATA 9TD01583/3, KOMATSU 00131437, LIEBHERR 4174947, GAMBETTI-BARRE M175903002, TELCO-TATA TD01583/3, HYUNDAI, VOLVO 44062, VERMEER 1181230011, VOLVO SA9112-12001, Piulita, DAEWOO 9121-7004, BERCO CR1250, JCB JNA0358, MAIT 2904108, LANDINI MASSEY FERGUSON 2928706M1, POCLAIN-CASE POCLAIN ZKI134536, DRESSER-FURUKAWA 3150627R1, HYUNDAI 81E6-37030, INGERSOLL RAND 57700858, HANOMAG 2979125M, BENATI 2001075, BERCO CR1250B, CATERPILLAR 1M1408, CNH-FIAT NEW HOLLAND 71401387, DRESSER-FURUKAWA 1254381H1, EXTEC VCR1250, CNH-FIAT NEW HOLLAND 579383, DAEWOO K1043367, REEDRILL V005767, CNH-FIAT NEW HOLLAND 79009851, INGERSOLL RAND 56965270, SIMIT 45482379, TELCO-TATA TD01119/04, VPI V1M1408, MECALAC 5230071, LIEBHERR 4982173, JOHN DEERE CQ09338, LIEBHERR 7001334, DRESSER 260714R1, LIEBHERR 4129303, DAEWOO 9121-6005, ATLAS-TEREX 0362007, LARSEN & TOUBRO V20134541, LIEBHERR 7001439, LIEBHERR 4122664, DRESSER 616209C1, LIEBHERR 4111100, CATERPILLAR 5W9828, VOLVO 14526392, SENNEBOGEN 3528013331, ITM D01060C0N17, POCLAIN-CASE POCLAIN PK134536, E.W.K. 501518401, SAMSUNG-H.I. 9112-01201, VOLVO 020005225990, CNH-FIAT NEW HOLLAND 4982173, VOLVO 9112-12001, MAIT 2175047, LANDINI MASSEY FERGUSON 1430747M1, CASE R25688, JOHN DEERE T43322, JOHN DEERE-CAMECO CB01419006, LANDINI MASSEY FERGUSON 2961659M1, R160LCD-9, EURODAEWOO 9121-6005D11, LANDINI MASSEY FERGUSON N1926, JCB JNA0086, VOLVO 044062, DAEWOO 2121-6014, HYUNDAI 81EL-25030, VARIOUS 571009, POCLAIN-CASE POCLAIN P2434592V, POCLAIN-CASE POCLAIN V2434592, BENATI 2001015, KOMATSU 131437, A.B.G. 21076294, WIRTGEN 43499, C.M.W-(CHARLES-MACHINES) 107-364, LANDINI MASSEY FERGUSON 392826X1, LANDINI MASSEY FERGUSON 2979125M1, JOHN DEERE T45097, CNH-FIAT NEW HOLLAND 79004490, LIEBHERR 4253411, DRESSER 311347R2, LIEBHERR 7402313