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
POCLAIN-CASE POCLAIN ZKI234504, POCLAIN-CASE POCLAIN V0234504, CASE R29246, CNH-FIAT NEW HOLLAND 87582723, INGERSOLL RAND 56969264, HANOMAG 3254012M1, HYUNDAI 81E7-0022, CATERPILLAR, TELCO-TATA TD01089/4, LIEBHERR 7003772, POCLAIN-CASE POCLAIN E0050018, TESMEC T00-2600-126, POCLAIN-CASE POCLAIN V2334504, BLOUNT 31001809, VPI V1S1860, CATERPILLAR 1S1860, DRESSER 616226C1, 3ZF-5954-UP, VOLVO 14044064, ITM D0108000N17, BERCO CR1967, SENNEBOGEN 2528018585, DRESSER-FURUKAWA 3194591R1, Piulita, LARSEN & TOUBRO W20134542, LIEBHERR 7001688, O-&-K-TEREX 42452, KOMATSU 01803-E0202E, HANOMAG 2895890M1, REEDRILL V007410, BAUER 49335, CATERPILLAR 1A4019, D6H, LIEBHERR 4111000, CNH-FIAT NEW HOLLAND 76040850, TELCO-TATA TD01120/04, Buldozer, LIEBHERR 4130.246.16, SENNEBOGEN 018585, VOLVO 44064, TELCO-TATA 9TD01089/4, VARIOUS 571109, VOLVO 140440645
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
HANOMAG 3254012M1, HYUNDAI 81E7-0022, CATERPILLAR 1S1860, VPI V1S1860, SENNEBOGEN 2528018585, Buldozer, ITM D0108000N17, LIEBHERR 4130.246.16, Piulita, KOMATSU 01803-E0202E, 3ZF-5954-UP, TELCO-TATA 9TD01089/4, REEDRILL V007410, VARIOUS 571109, INGERSOLL RAND 56969264, DRESSER-FURUKAWA 3194591R1, CASE R29246, CATERPILLAR 1A4019, SENNEBOGEN 018585, TESMEC T00-2600-126, POCLAIN-CASE POCLAIN V2334504, BLOUNT 31001809, CNH-FIAT NEW HOLLAND 76040850, O-&-K-TEREX 42452, BERCO CR1967, LIEBHERR 4111000, LIEBHERR 7001688, POCLAIN-CASE POCLAIN E0050018, TELCO-TATA TD01089/4, HANOMAG 2895890M1, CATERPILLAR, VOLVO 44064, TELCO-TATA TD01120/04, LARSEN & TOUBRO W20134542, POCLAIN-CASE POCLAIN V0234504, CNH-FIAT NEW HOLLAND 87582723, BAUER 49335, POCLAIN-CASE POCLAIN ZKI234504, LIEBHERR 7003772, DRESSER 616226C1, VOLVO 14044064, D6H, VOLVO 140440645