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