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
BERCO CR1105A, SENNEBOGEN 018586, LIEBHERR 4098.108.16, POCLAIN-CASE POCLAIN S0233006, HANOMAG 2962609M1, POCLAIN-CASE POCLAIN P0233006S, LIEBHERR 7001689, O-&-K-TEREX 111742, LIEBHERR 4097514, CATERPILLAR, BENATI 2004014, TELCO-TATA 9TD01089/3, BERCO ID427, TELCO-TATA 9TD01120/03, TELCO-TATA TD01120/03, INGERSOLL RAND 57070971, DRESSER 624848C1, BERCO CR1105, DRESSER-FURUKAWA 3194590R2, CNH-FIAT NEW HOLLAND 76040849, Surub papuc, HYUNDAI 81E-0023, HANOMAG 374937128, REEDRILL V007409, CASE R29245, LIEBHERR 4091000, SENNEBOGEN 2511018586, KOMATSU 207-32-E1134E, ITM D01070A0N15, VPI V1S1859, LIEBHERR 786500614, Buldozer, 5X-1-779, BAUER 240074, CATERPILLAR 2M8758, HANOMAG 2962609M, HANOMAG 3254010M1, TELCO-TATA TD01089/3, POCLAIN-CASE POCLAIN ZKI233006, LANDINI MASSEY FERGUSON 2895889M1, JOHN DEERE T51523, VARIOUS 571108, DRESSER-FURUKAWA 1254518H1, PRIESTMAN 234855, D6D, LIEBHERR 7003775, VOLVO 44063, CATERPILLAR 1S1859, CATERPILLAR 3Y1129, VOLVO 14044063
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
TELCO-TATA 9TD01089/3, REEDRILL V007409, POCLAIN-CASE POCLAIN S0233006, Buldozer, CATERPILLAR, O-&-K-TEREX 111742, LIEBHERR 7003775, HANOMAG 2962609M1, DRESSER-FURUKAWA 1254518H1, LIEBHERR 4097514, TELCO-TATA 9TD01120/03, VPI V1S1859, HANOMAG 2962609M, DRESSER-FURUKAWA 3194590R2, PRIESTMAN 234855, CNH-FIAT NEW HOLLAND 76040849, VARIOUS 571108, D6D, HYUNDAI 81E-0023, TELCO-TATA TD01089/3, SENNEBOGEN 2511018586, JOHN DEERE T51523, BERCO CR1105A, TELCO-TATA TD01120/03, BERCO ID427, LIEBHERR 7001689, LIEBHERR 4091000, VOLVO 44063, ITM D01070A0N15, CASE R29245, LANDINI MASSEY FERGUSON 2895889M1, HANOMAG 3254010M1, BERCO CR1105, DRESSER 624848C1, KOMATSU 207-32-E1134E, CATERPILLAR 3Y1129, LIEBHERR 4098.108.16, SENNEBOGEN 018586, BENATI 2004014, Surub papuc, HANOMAG 374937128, BAUER 240074, CATERPILLAR 2M8758, LIEBHERR 786500614, INGERSOLL RAND 57070971, VOLVO 14044063, POCLAIN-CASE POCLAIN ZKI233006, POCLAIN-CASE POCLAIN P0233006S, CATERPILLAR 1S1859, 5X-1-779