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
LIEBHERR 4091100, E.W.K. 501518501, CATERPILLAR 5W9827, JOHN DEERE T45096, TELCO-TATA TD01583/2, CNH-FIAT NEW HOLLAND 79004489, VPI V7H3597, INGERSOLL RAND 57407405, BENATI 2001074, INGERSOLL RAND 57700866, GAMBETTI-BARRE M175903001, BERCO CR1251A, SIMIT 45482377, SENNEBOGEN 013343, C.M.W-(CHARLES-MACHINES) 107-365, LIEBHERR 4097515, HANOMAG 2979124M, JOHN DEERE CQ09337, LANDINI MASSEY FERGUSON 2979124M1, LIEBHERR 4982171, JCB JNA0295, Surub papuc, 22X-1-UP, LANDINI MASSEY FERGUSON 1430746M1, POCLAIN-CASE POCLAIN W0033071, JOHN DEERE-CAMECO CB01419009, BERCO CR1251, HYUNDAI 81EL-25020, VOLVO 16545, CATERPILLAR 5H8756, TELCO-TATA 9TD01583/2, MAIT 2175046, JOHN DEERE T43323, CATERPILLAR 7H3597, LANDINI MASSEY FERGUSON 3089873M1, ITM D04100A0N15, D5B, MAIT 2901221, LANDINI MASSEY FERGUSON 2979121M1, LIEBHERR 7001485, LANDINI MASSEY FERGUSON 2928705M1, LANDINI MASSEY FERGUSON 4906550M1, A.B.G. 21076286, DRESSER-FURUKAWA 319325231R1, LANDINI MASSEY FERGUSON 2979939M1, EXTEC VCR1251, Buldozer, CATERPILLAR, CASE 295318A1, VERMEER 118120001, VARIOUS 571008, TELCO-TATA TD01119/03, LIEBHERR 4253410, JCB JNA0362, CNH-FIAT NEW HOLLAND 4982171, JOHN DEERE T121478, DRESSER-FURUKAWA 3193523R1, VOLVO 18065840, LIEBHERR 4157879, TELCO-TATA 9TD01119/03, INGERSOLL RAND 56965262, REEDRILL V005766, CNH-FIAT NEW HOLLAND 79031606, DRESSER 1254380H1, VOLVO 14016545
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 TD01583/2, VPI V7H3597, LANDINI MASSEY FERGUSON 2979124M1, CNH-FIAT NEW HOLLAND 4982171, CNH-FIAT NEW HOLLAND 79031606, MAIT 2175046, INGERSOLL RAND 57700866, BERCO CR1251A, VARIOUS 571008, BENATI 2001074, DRESSER-FURUKAWA 319325231R1, LANDINI MASSEY FERGUSON 4906550M1, LANDINI MASSEY FERGUSON 1430746M1, LANDINI MASSEY FERGUSON 2979121M1, BERCO CR1251, GAMBETTI-BARRE M175903001, JOHN DEERE CQ09337, TELCO-TATA TD01119/03, E.W.K. 501518501, LIEBHERR 4157879, POCLAIN-CASE POCLAIN W0033071, LIEBHERR 4097515, INGERSOLL RAND 56965262, INGERSOLL RAND 57407405, TELCO-TATA 9TD01583/2, CATERPILLAR 7H3597, ITM D04100A0N15, HYUNDAI 81EL-25020, EXTEC VCR1251, SIMIT 45482377, TELCO-TATA 9TD01119/03, C.M.W-(CHARLES-MACHINES) 107-365, LANDINI MASSEY FERGUSON 2928705M1, LANDINI MASSEY FERGUSON 2979939M1, LANDINI MASSEY FERGUSON 3089873M1, CATERPILLAR 5W9827, CATERPILLAR 5H8756, LIEBHERR 4091100, CNH-FIAT NEW HOLLAND 79004489, JOHN DEERE T45096, VOLVO 18065840, MAIT 2901221, JOHN DEERE T43323, VOLVO 16545, DRESSER 1254380H1, VOLVO 14016545, JCB JNA0295, SENNEBOGEN 013343, REEDRILL V005766, LIEBHERR 4982171, JOHN DEERE T121478, Buldozer, 22X-1-UP, JOHN DEERE-CAMECO CB01419009, A.B.G. 21076286, DRESSER-FURUKAWA 3193523R1, LIEBHERR 4253410, VERMEER 118120001, CASE 295318A1, CATERPILLAR, LIEBHERR 7001485, JCB JNA0362, HANOMAG 2979124M, D5B, Surub papuc