Description
The Caterpillar 1U-7598 is a Genuine Cat OEM service tool used to drive the rear crankshaft seal and wear sleeve on 3114, 3116, 3126 HEUI, and C7 engines — specifically the Cat 222-3909 rear main seal. This listing is for a pre-owned tool in serviceable condition.
Specifications
| Manufacturer | Caterpillar (Genuine Cat) |
|---|---|
| Tool Number | 1U-7598 |
| Tool Type | Rear Crankshaft Seal / Wear Sleeve Installer |
| Installs Seal | Cat 222-3909 (rear main seal) |
| Engine Compatibility | Cat 3114, 3116, 3126 HEUI, C7 |
| Condition | Used — serviceable |
Applications
This installer is the Caterpillar service-procedure tool for the rear crankshaft seal on:
- Cat 3114 (4.4L mid-duty diesel)
- Cat 3116 (6.6L mid-duty diesel)
- Cat 3126 / 3126B HEUI (7.2L on-highway diesel)
- Cat C7 (7.2L ACERT on-highway and industrial diesel)
Used tool — verify suitability for your service procedure. The tool drives the seal and wear sleeve to factory depth per Cat’s published service instructions.