ITEM DESCRIPTION
【Great Compatibility】
Works on Caterpillar (CAT) C-10,C-12,C-15,C-16,C-18 and 3406E Engines. Like C-12 1YN, C-10 2PN, 3406E 5EK, 3406E 6BR and 3406E 9WR
【Replacement】
Custom-fited, be comparable to the CAT number 9U-6891.
【Superior Quality】
Crafted from hardened alloy steel with advanced machining, each tool in this injector sleeve remover and installer kit resists corrosion, delivers precise fitting, and ensures a long service life—built to withstand tough diesel repair jobs.
【Critical Tool for Cat Engines】
Used to install and remove injector sleeves. Works in a easier way to save your time and money.
【Professional-Grade Tool】
Whether you're working in a diesel engine repair shop or managing a fleet maintenance program, this injector service tool kit is a must-have.
【Includes 6 Tools】
Kit includes all key components: 9U6877 thrust bearing, 9U7258 driver cap, 221-9778 puller stud, 4K-0367 full nut, 5P-8247 hard washer, 128-7889 puller bridge

Remove The Unit Injector Sleeves - Install the puller stud into the unit injector sleeve.
- Install the following parts one by one over the stud: bridge puller, thrust bearing, hard washer, and nut. See Step 1.
- Tighten the nut until the unit injector sleeve is pulled free of the cylinder head assembly.
- Remove Tooling from the unit injector sleeve.
- Repeat Steps 1 through 4 in order to remove the remaining unit injector sleeves.
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NOTICE: Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Install The Electronic Unit Injector - Clean the bore in the cylinder head for the electronic unit injector sleeve.
- Install new O-ring seals (2) on electronic unit injector sleeve (1).
- Apply Retaining Compound to the contact surface of electronic unit injector sleeve on the surface that is marked "X".(Do not apply it to the cylinder head surfaces)
- Lubricate O-ring seals (2) with clean engine oil.
- Install Tooling (b) into the threads of electronic unit injector sleeve (1).
- Position Tooling (b) and the electronic unit injector sleeve in the cylinder head. Use care not to damage the O-ring seal on the electronic unit injector sleeve.
- Use Tooling (a) and a hammer to install electronic unit injector sleeve (1) in the cylinder head.
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NOTE: Check the fuel passage in the cylinder head assembly. Remove any debris left.