Caterpillar part numbers starting 2W4
| 2W4068 | Pipe (r.h.) (turbocharger, air lines) | Caterpillar | ||
| 2W4094 | Manifold (turbocharger, air lines) | Caterpillar | ||
| 2W4331 | Hose assembly (valve lines, diverter) | Caterpillar | ||
| 2W4332 | Hose assembly (valve lines, diverter (coni)) | Caterpillar | ||
| 2W4334 | Bar | Caterpillar | ||
| 2W4335 | Plate | Caterpillar | ||
| 2W4607 | Spring (torque control lever) | Caterpillar | ||
| 2W4628 | Link (shutoff, electric) | Caterpillar | ||
| 2W4637 | Lever assembly (torque control lever) | Caterpillar |