Caterpillar 3406E — Electronic Unit Injector Sleeve - Remove
Repair & overhaul
For the Caterpillar 3406E, from the Caterpillar service manual.
Applies to: Caterpillar 3406E
Before you start
- Keep all parts clean from contaminants.
Procedure
- Remove the electronic unit injectors.
- Drain the coolant from the engine.
- Use Tooling (A) to remove unit injector sleeve (1).
- Remove O-ring seals (2) from unit injector sleeve (1).
Tools required
- 128-7889 Bridge Puller Amazon
- 221-9778 Puller Stud Amazon
- 9U-6877 Thrust Bearing Amazon
- 5P-8247 Hard Washer Amazon
- 4K-0367 Nut Amazon
- 9U-6891 Injector Tool Group Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Caterpillar 3406E →
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.