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
TELCO-TATA TD01089/4, BERCO CR1967, REEDRILL V007410, SENNEBOGEN 2528018585, CATERPILLAR 1A4019, TELCO-TATA TD01120/04, ITM D0108000N17, DRESSER-FURUKAWA 3194591R1, VOLVO 44064, POCLAIN-CASE POCLAIN V0234504, BAUER 49335, CATERPILLAR 1S1860, VOLVO 140440645, Buldozer, INGERSOLL RAND 56969264, 6CF-1-3999, HANOMAG 3254012M1, POCLAIN-CASE POCLAIN V2334504, LARSEN & TOUBRO W20134542, CNH-FIAT NEW HOLLAND 87582723, HANOMAG 2895890M1, LIEBHERR 7003772, O-&-K-TEREX 42452, D6H, TELCO-TATA 9TD01089/4, Piulita, VPI V1S1860, CNH-FIAT NEW HOLLAND 76040850, TESMEC T00-2600-126, LIEBHERR 7001688, CATERPILLAR, LIEBHERR 4130.246.16, LIEBHERR 4111000, HYUNDAI 81E7-0022, KOMATSU 01803-E0202E, SENNEBOGEN 018585, POCLAIN-CASE POCLAIN ZKI234504, DRESSER 616226C1, BLOUNT 31001809, VARIOUS 571109, CASE R29246, VOLVO 14044064, POCLAIN-CASE POCLAIN E0050018
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 7001688, BERCO CR1967, BLOUNT 31001809, CASE R29246, TESMEC T00-2600-126, VARIOUS 571109, POCLAIN-CASE POCLAIN V2334504, BAUER 49335, Buldozer, HANOMAG 2895890M1, VPI V1S1860, REEDRILL V007410, POCLAIN-CASE POCLAIN ZKI234504, HYUNDAI 81E7-0022, 6CF-1-3999, D6H, LIEBHERR 4130.246.16, LIEBHERR 7003772, LIEBHERR 4111000, CNH-FIAT NEW HOLLAND 76040850, VOLVO 140440645, KOMATSU 01803-E0202E, POCLAIN-CASE POCLAIN E0050018, O-&-K-TEREX 42452, ITM D0108000N17, HANOMAG 3254012M1, TELCO-TATA 9TD01089/4, CNH-FIAT NEW HOLLAND 87582723, TELCO-TATA TD01089/4, POCLAIN-CASE POCLAIN V0234504, LARSEN & TOUBRO W20134542, VOLVO 44064, SENNEBOGEN 018585, CATERPILLAR 1A4019, VOLVO 14044064, TELCO-TATA TD01120/04, CATERPILLAR, INGERSOLL RAND 56969264, DRESSER-FURUKAWA 3194591R1, CATERPILLAR 1S1860, DRESSER 616226C1, Piulita, SENNEBOGEN 2528018585