Caterpillar Undercarriage Parts
Bulldozers and excavators are heavy machines that play a vital role in a variety of construction and mining projects. Their performance and durability depend largely on the quality of undercarriage components such as track rollers, upper track rollers, sprockets, idlers, track chains and track links. In our company, we take great pride in offering high quality undercarriage components designed specifically for CATERPILLAR machines.
Our production quality and management level have reached OEM standards, ensuring our products are of the highest quality. We know our customers trust us to provide reliable and durable undercarriage components for their Cat equipment, which is why we have strict quality control measures in every stage of production. Our parts are manufactured with high-quality materials and advanced technology to ensure their long life and performance under the most demanding working conditions.
| Name | Model | OEM | Weight（kg） | Name | Model | OEM | Weight（kg） |
| track roller | E70B/307/308 | 127-3806/6I-6524 | 14.4 | Idler | E70B、MS070-8 | 61 | |
| track roller | E120B/311/312 | 151-9747/4I-7346 | 25.2 | Idler | 312/311/E120B/314C | 4I7-337 | 96.5 |
| track roller | E320 /CAT320 | 1175045 | 37.36 | Idler | 320 | 113-2907/102-8151 | 148 |
| track roller | E215 | 8E7497 | 33.22 | Idler | 325 | 1028155 | (175) |
| track roller | E324 | 163-4145/6I-9396 | 43 | Idler | E240、E180 | 941384 | (124) |
| track roller | E325 | 117-5046/6Y-1057 | 43.58 | Idler | 225 | (165) | |
| track roller | EL240 | 42.2 | Idler | 235 | 278 | ||
| track roller | E300B | 854973/A065-00122 | 53.78 | Idler | 322B | 115-6337 | (136) |
| track roller | E330 | 117-5047/6Y-2795 | 60.5 | Idler | 330 | 1028152 | 245 |
| track roller | CAT235/235B/235C | 8E-4579 | 51.8 | Idler | 345 | CR6597/115-6366 | 262.5 |
| track roller | E345 | 178-7293 | 80.5 | Idler | 365 | 136-2429 | 418 |
| track roller | E350 | 94 | Idler | 375385 385B | 135-8904/194-1157 | 610 | |
| track roller | E365 374 | 137 | Idler | 311 | 4I7337 | 85 | |
| track roller | E375 E385 390 | 163 | Idler | 320 | 1028151 | 137 | |
| track roller | D3C S/F | 27.5 | Idler | 325 | 1028155 | 157 | |
| track roller | D3C D/F | 28.5 | Idler | E240/E180 | 941384 | 118 | |
| track roller | D4H(S)/D5C/D5K | 36.14 | Idler | 322B | 115-6337 | 120 | |
| track roller | D4H(D)/D5C/D5K | 37.9 | Idler | 330 | 1028152 | 227 | |
| track roller | D4C/D4D(S) | 7K8095/7K8083 | 36.2 | Idler | 345 | CR6597/115-6366 | 250 |
| track roller | D4C/D4D(D) | 7K8096/7K8084 | 49.5 | Idler | 365 | 136-2429 | 418 |
| track roller | D6K2(DF) | 37.3 | Idler | D3B/C/G，D4B/C/G | 113 | ||
| track roller | D6K2(SF) | 39.6 | Idler | D4H-L (500) | (93) | ||
| track roller | D6D(S) | 7G0421/9G8029 | 53.12 | Idler | D4H-S (475) | (83.5) | |
| track roller | D6D(D) | 7G0423/9G8034 | 60 | Idler | D6D | 240.5 | |
| track roller | D6R2(S) | 58 | Idler | D6H-L | 6T3216 | 156 | |
| track roller | D6R2(D) | 64 | Idler | D6H-S | 151-4587 | 149 | |
| track roller | D6H/R/T(S) | 7T4102/120-5746 | 51.86 | Idler | D7G | 352 | |
| track roller | D6H/R/T(D) | 7T4107/120-5766 | 58.38 | Idler | D8N-L | 111-1730 | 351 |
| track roller | CAT983 | 95.9 | Idler | D8N-S | 111-1729 | 297 | |
| track roller | D8N(S) | 9W8705/7G9188 | 88.5 | Idler | D8N-L双端盖 | 111-1730 | 354 |
| track roller | D8N(D) | 9W8706/7G9193 | 98 | Idler | D8N-S双端盖 | 111-1729 | 316 |
| track roller | D9N/R(S) | 7T1258 | 125 | Idler | D9N/R/T | 125-4655 | 436.5 |
| track roller | D9N/R(D) | 7T1253 | 115 | Idler | D10N/R/T Front | 125-3537 | (608) |
| track roller | D10N/R(S) | 6Y0889 | (143.5) | Idler | D11N/R/T | 156-0313 | (958) |
| track roller | D10N/R(D) | 6Y0890 | (151.4) | Idler | D5C | 186 | |
| track roller | D11N(S) | 183 | Idler | D5H,D6M | 156 | ||
| track roller | D11N(D) | 192 | Idler | D7H,D7R (628mm) | 192-0216 | 247 | |
| track roller | D7F/D7G(S) | 9S0316/6T9871 | (68.8) | Idler | D7H, D7R (585mm) | 135-9896 | 266 |
| track roller | D7F/D7G(D) | 9S0317/6T9867 | (75.8) | Idler | D7H(628mm)双端盖 | 192-0216 | 260 |
| track roller | D5H(S) | 44 | Idler | D7H(585mm)双端盖 | 135-9896 | 279 | |
| track roller | D5H(D) | 47.72 | Idler | 953 | CR3189WB | 185.5 | |
| track roller | D5R (D/F)D5,D5B,D5E,D6,D6B | 49.7 | Idler | 963 | CR4007WB | 201 | |
| track roller | D5R (S/F)D5,D5B,D5E,D6,D6B | 46 | Idler | D5 | 191.5 | ||
| track roller | D6D(S) | 7G0421/9G8029 | 54 | Idler | D5N/R/T Front Idler | ||
| track roller | D6D(D) | 7G0423/9G8034 | 59 | Idler | D5N/R/T Rear Idler | ||
| track roller | D8K S/F | 113 | Idler | D9L | 9w6039 | 499 | |
| track roller | D8K D/F | 122 | Idler | D3K | 90 | ||
| track roller | D3K S/F | 29 | Idler | D5K | 116 | ||
| track roller | D7N/R/T S/F | Idler | D6K | 116.7 | |||
| track roller | D7N/R/T D/F | Idler | D8K | 333 | |||
| track roller | D9L S/F | Idler | D6D(大） | 240 | |||
| track roller | D9L D/F | Idler | D7G/ D7F | 1S-8186 | 352 | ||
| track roller | D3K D/F | 30 | Idler | D5C | VCR5420V | 165 | |
| track adjuster | 312B/C | 66 | Idler | D6N/R-T Front Idler | VCR4616V | 156 | |
| track adjuster | 312D | 70 | Idler | D6N/R-T Rear Idler | |||
| track adjuster | E200B/CAT320/CAT320A | 97 | Idler | D6H | VCR4909V | 149 | |
| track adjuster | 320B | 105 | Idler | D6M/N | VCR4589V | 140 | |
| track adjuster | 320C | 111 | Idler | D7R Front Idler | VCR4593V | 266 | |
| track adjuster | 320D | 130 | Idler | D7R Rear Idler | |||
| track adjuster | 324 | 148 | Idler | CAT953/CAT953D | 3W7485 | 172 | |
| track adjuster | 322A/B | 113 | Idler | D4H | VCR4585V | 93 | |
| track adjuster | 322C | 119 | Idler | D4H | 7T4400/VCR4587V | 88 | |
| track adjuster | 324DL | 146 | Top Roller | E70、E110、E120、E140、311、E312、E314 | 093-6946/4I7345 | (11.3) | |
| track adjuster | 325C | 153 | Top Roller | MS120-8 | 093-6946 | 18.2 | |
| track adjuster | 325DL | 174.5 | Top Roller | E320、317、318、322 | 8E5600 | 16.5 | |
| track adjuster | CAT329 | 178 | Top Roller | E330、E325 | 6Y5323 | 32 | |
| track adjuster | 330A/B | 197 | Top Roller | E300B | (27.1) | ||
| track adjuster | 330C | 226 | Top Roller | E345 | 42 | ||
| track adjuster | 330D | 273 | Top Roller | E350 | 50.5 | ||
| track adjuster | 330GC | 273 | Top Roller | D3C | 20.15 | ||
| track adjuster | 336GC | 143 | Top Roller | D4/D4D/D4E | 30.25 | ||
| track adjuster | 345 | 315 | Top Roller | D5B/D5/D6 | 9S3570\5A8374/CT574 | (30) | |
| sprocket | E70B | 6I9336 | 29.5 | Top Roller | D6C、D | 3T3206/9S2730 | 37 |
| sprocket | E120B | 099-0219 | 38.14 | Top Roller | D6H/D6R | 6Y1781 | 36.7 |
| sprocket | 320/320L/322/322N | 8E9805 | 36.38 | Top Roller | D7F、G | 1P8717/2P3514 | 43 |
| sprocket | 325/325L/320S | 6Y4898 | 63 | Top Roller | D7N/R/T | ||
| sprocket | 330/330L | 6Y5685 | 93.1 | Top Roller | D8N | 45 | |
| sprocket | E345 | 124-3296 | 87 | Top Roller | D8K | 48 | |
| sprocket | CAT320B | 41 | |||||
| sprocket | DH220、DX225、S220 | 2108-1014A | 49.54 | ||||
| sprocket | DX300 | 86.7 | |||||
| sprocket | DOOSAN DX140 OFFSET 9mm | 42 | |||||
| sprocket | DX225 | 50 |
