Caterpillar 312C Final Drive

Part Number
191-2619
162-1379
277-6697
224-1681
220-8601
278-6920
267-6825
191-2515
219-3643
277-6695
191-2666
267-6824
220-8600
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New Caterpillar 312C Final Drive

Up to three-year, unlimited-hour warranty.

Same day shipping. Coast to coast Canada.

If you’re not sure which final drive motor you need for your machine, contact us.

Why choose and Dyco?

and Dyco brands provide you with quality new replacement components options for most major makes and models of excavators and forestry swing machinery.

Their products are manufactured at world class OEM facilities in Europe, South Korea, and Japan, and distributed throughout the world market.

Bolt Torque Settings

This article isn't about excavator final drive removal, or even final drive disassembly. This is just a simple reminder about correct bolt torque settings when you come to re-assemble a final drive unit.

If you don't have a metric torque wrench then buy one! This prevents the expensive mistakes that arise from using charts to calculate torque specifications for bolts.

kN = Axial Load in kiloNewtons Nm = Torque Setting in Newton Metres

Bolt Spec. 4.8 5.8 8.8 10.9 12.9
Dia x Pitch mm kN Nm kN Nm kN Nm kN Nm kN Nm
3 x 0.5 1.2 0.9 1.5 1.1 2.3 1.8 3.4 2.6 4.0 3.0
4 x 0.7 2.1 1.6 2.7 2.0 4.1 3.1 6.0 4.5 7.0 5.3
5 x 0.8 3.5 3.2 4.4 4.0 6.7 6.1 9.8 8.9 11.5 10.4
6 x 1 4.9 5.5 6.1 6.8 9.4 10.4 13.8 15.3 16.1 17.9
7 x 1 7.3 9.3 9.0 11.5 13.7 17.2 20.2 25 23.6 30
8 x 1 9.9 14.5 12.2 18.0 18.9 27 28 40 32 47
9 x 1.25 9.3 13.6 11.5 16.8 17.2 25 25 37 30 44
10 x 1.25 15.8 28.0 19.5 35 30 53 43 78 51 91
10 x 1.5 14.5 26.6 18 33 27 50 40 73 47 86
12 x 1.25 23.8 50 29 62 45 95 65 139 77 163
12 x 1.75 21.3 46 26 56 40 86 50 127 69 148
14 x 1.5 32 79 40 96 61 150 90 220 105 257
14 x 2 29 73 36 90 55 137 80 201 94 135
16 x 1.5 43 121 54 150 82 229 121 336 141 393
16 x 2 40 113 50 141 76 214 111 314 130 369
18 x 1.5 57 178 70 220 110 345 157 491 184 575
18 x 2.5 49 157 60 194 95 306 135 435 158 509
20 x 1.5 72 248 89 307 140 482 199 687 233 804
20 x 2.5 63 222 77 275 122 432 173 615 203 719
22 x 1.5 88 337 109 416 172 654 245 932 266 1090
22 x 2.5 78 305 97 376 152 502 216 843 253 987
24 x 2 101 420 125 519 196 814 280 1160 237 1360
24 x 3 90 383 112 474 175 744 250 1080 292 1240
27 x 2 131 615 162 760 225 1200 363 1700 425 1990
27 x 3 119 568 147 703 230 1100 328 1570 384 1840
30 x 2 165 850 204 1060 321 1670 457 2370 535 2380
30 x 3.5 144 772 178 995 280 1500 300 2130 467 2500