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
LANDINI MASSEY FERGUSON 2979125M1, LANDINI MASSEY FERGUSON 2961659M1, VOLVO 14526392, GAMBETTI-BARRE M175903002, EXTEC VCR1250, JOHN DEERE T43322, ATLAS-TEREX 0362007, LIEBHERR 7001439, Excavator, REEDRILL V005767, POCLAIN-CASE POCLAIN V2434592, VOLVO 44062, LIEBHERR 4122664, LANDINI MASSEY FERGUSON 2928706M1, DAEWOO K1043367, DAEWOO 2121-6014, JOHN DEERE CQ09338, LANDINI MASSEY FERGUSON 392826X1, INGERSOLL RAND 56965270, DRESSER 311347R2, EURODAEWOO 9121-6005D11, HYUNDAI 81E6-37030, TELCO-TATA TD01119/04, DAEWOO 9121-6005, KOMATSU 131437, LIEBHERR 4129303, JOHN DEERE T45097, POCLAIN-CASE POCLAIN PK134536, CATERPILLAR 5W9828, VOLVO 020005225990, CATERPILLAR 1M1408, DRESSER 260714R1, LARSEN & TOUBRO V20134541, CNH-FIAT NEW HOLLAND 79009851, VOLVO 9112-12001, Piulita, SAMSUNG-H.I. 9112-01201, CASE R25688, 213B, BERCO CR1250B, C.M.W-(CHARLES-MACHINES) 107-364, BENATI 2001075, CNH-FIAT NEW HOLLAND 579383, INGERSOLL RAND 57700858, VARIOUS 571009, TELCO-TATA 9TD01583/3, CNH-FIAT NEW HOLLAND 71401387, ITM D01060C0N17, DRESSER-FURUKAWA 3150627R1, LIEBHERR 4174947, CATERPILLAR, VOLVO 044062, VERMEER 1181230011, VOLVO 14044062, LIEBHERR 4253411, E.W.K. 501518401, TELCO-TATA TD01583/3, JCB JNA0358, MAIT 2904108, KOMATSU 00131437, LIEBHERR 4982173, LIEBHERR 4111100, WIRTGEN 43499, TELCO-TATA 9TD01119/04, BERCO CR1250, JOHN DEERE-CAMECO CB01419006, VPI V1M1408, CNH-FIAT NEW HOLLAND 79004490, A.B.G. 21076294, POCLAIN-CASE POCLAIN ZKI134536, MECALAC 5230071, HYUNDAI 81EL-25030, LANDINI MASSEY FERGUSON 1430747M1, JCB JNA0086, JCB 200/61801, MAIT 2175047, DRESSER 616209C1, VOLVO SA9112-12001, DAEWOO 9121-7004, SIMIT 45482379, LIEBHERR 7001334, POCLAIN-CASE POCLAIN P2434592V, CNH-FIAT NEW HOLLAND 4982173, HANOMAG 2979125M, LIEBHERR 7402313, SENNEBOGEN 3528013331, LANDINI MASSEY FERGUSON N1926, DRESSER-FURUKAWA 1254381H1, POCLAIN-CASE POCLAIN K0134536, BENATI 2001015
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
DRESSER 311347R2, POCLAIN-CASE POCLAIN P2434592V, E.W.K. 501518401, LIEBHERR 4111100, VPI V1M1408, DRESSER-FURUKAWA 1254381H1, LIEBHERR 7402313, TELCO-TATA 9TD01119/04, TELCO-TATA 9TD01583/3, CATERPILLAR 5W9828, MAIT 2904108, LIEBHERR 4174947, C.M.W-(CHARLES-MACHINES) 107-364, GAMBETTI-BARRE M175903002, SIMIT 45482379, CNH-FIAT NEW HOLLAND 579383, SENNEBOGEN 3528013331, CATERPILLAR, HYUNDAI 81E6-37030, KOMATSU 00131437, SAMSUNG-H.I. 9112-01201, CNH-FIAT NEW HOLLAND 79004490, MECALAC 5230071, Excavator, VOLVO 044062, DRESSER-FURUKAWA 3150627R1, DRESSER 260714R1, VOLVO 44062, VOLVO 14526392, VOLVO 9112-12001, LANDINI MASSEY FERGUSON 2961659M1, 213B, LIEBHERR 4982173, CNH-FIAT NEW HOLLAND 79009851, LARSEN & TOUBRO V20134541, LIEBHERR 4122664, CASE R25688, JOHN DEERE T43322, JCB JNA0358, TELCO-TATA TD01119/04, MAIT 2175047, VOLVO SA9112-12001, INGERSOLL RAND 57700858, JCB 200/61801, LIEBHERR 4129303, BERCO CR1250B, LANDINI MASSEY FERGUSON 2979125M1, REEDRILL V005767, POCLAIN-CASE POCLAIN K0134536, POCLAIN-CASE POCLAIN ZKI134536, A.B.G. 21076294, CNH-FIAT NEW HOLLAND 4982173, Piulita, LIEBHERR 7001334, CATERPILLAR 1M1408, EXTEC VCR1250, LIEBHERR 7001439, VOLVO 020005225990, WIRTGEN 43499, BERCO CR1250, TELCO-TATA TD01583/3, EURODAEWOO 9121-6005D11, HYUNDAI 81EL-25030, ITM D01060C0N17, CNH-FIAT NEW HOLLAND 71401387, JOHN DEERE T45097, BENATI 2001015, LIEBHERR 4253411, LANDINI MASSEY FERGUSON N1926, POCLAIN-CASE POCLAIN V2434592, LANDINI MASSEY FERGUSON 2928706M1, POCLAIN-CASE POCLAIN PK134536, VERMEER 1181230011, LANDINI MASSEY FERGUSON 392826X1, DAEWOO 2121-6014, HANOMAG 2979125M, INGERSOLL RAND 56965270, ATLAS-TEREX 0362007, VOLVO 14044062, JOHN DEERE CQ09338, KOMATSU 131437, DAEWOO 9121-7004, BENATI 2001075, LANDINI MASSEY FERGUSON 1430747M1, JOHN DEERE-CAMECO CB01419006, JCB JNA0086, DAEWOO 9121-6005, DAEWOO K1043367, DRESSER 616209C1, VARIOUS 571009