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 4098.108.16, Buldozer, DRESSER-FURUKAWA 1254518H1, HANOMAG 2962609M1, TELCO-TATA TD01089/3, JOHN DEERE T51523, TELCO-TATA TD01120/03, SENNEBOGEN 2511018586, HYUNDAI 81E-0023, CATERPILLAR 3Y1129, CNH-FIAT NEW HOLLAND 76040849, BERCO CR1105, BAUER 240074, TELCO-TATA 9TD01089/3, O-&-K-TEREX 111742, POCLAIN-CASE POCLAIN S0233006, LIEBHERR 786500614, Surub papuc, VOLVO 14044063, CASE R29245, HANOMAG 2962609M, CATERPILLAR 2M8758, 1450B, LIEBHERR 4091000, LIEBHERR 7001689, DRESSER 624848C1, POCLAIN-CASE POCLAIN ZKI233006, BENATI 2004014, POCLAIN-CASE POCLAIN P0233006S, BERCO CR1105A, LIEBHERR 7003775, VOLVO 44063, LANDINI MASSEY FERGUSON 2895889M1, REEDRILL V007409, PRIESTMAN 234855, HANOMAG 374937128, BERCO ID427, LIEBHERR 4097514, INGERSOLL RAND 57070971, DRESSER-FURUKAWA 3194590R2, VARIOUS 571108, KOMATSU 207-32-E1134E, SENNEBOGEN 018586, TELCO-TATA 9TD01120/03, CATERPILLAR 1S1859, CASE, ITM D01070A0N15, VPI V1S1859, LOADER, HANOMAG 3254010M1
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
CATERPILLAR 3Y1129, HYUNDAI 81E-0023, 1450B, LIEBHERR 4098.108.16, SENNEBOGEN 2511018586, BENATI 2004014, HANOMAG 374937128, CASE, POCLAIN-CASE POCLAIN P0233006S, TELCO-TATA TD01120/03, BERCO CR1105A, HANOMAG 2962609M1, CATERPILLAR 1S1859, ITM D01070A0N15, CATERPILLAR 2M8758, Surub papuc, CASE R29245, LIEBHERR 786500614, VPI V1S1859, LIEBHERR 7003775, O-&-K-TEREX 111742, BAUER 240074, LOADER, HANOMAG 2962609M, REEDRILL V007409, LIEBHERR 7001689, SENNEBOGEN 018586, KOMATSU 207-32-E1134E, DRESSER 624848C1, BERCO CR1105, Buldozer, TELCO-TATA TD01089/3, POCLAIN-CASE POCLAIN ZKI233006, LIEBHERR 4097514, POCLAIN-CASE POCLAIN S0233006, TELCO-TATA 9TD01089/3, VOLVO 44063, VOLVO 14044063, CNH-FIAT NEW HOLLAND 76040849, PRIESTMAN 234855, DRESSER-FURUKAWA 1254518H1, LANDINI MASSEY FERGUSON 2895889M1, INGERSOLL RAND 57070971, LIEBHERR 4091000, JOHN DEERE T51523, HANOMAG 3254010M1, BERCO ID427, TELCO-TATA 9TD01120/03, DRESSER-FURUKAWA 3194590R2, VARIOUS 571108