Yuesstloo Injector Sleeve Remover/Installer Kit — 9-Piece for Cat Engines, Height Tool, Hardened Steel

This Yuesstloo kit bundles the 9U-6891 injector sleeve remover/installer tools with the 9U-7227 injector height gauge plus complementary driver, puller and timing accessories so technicians can remove, install and set injector sleeves and check injector height without guessing or risking damage. Every component is machined from hardened steel and finished for corrosion resistance, making the set suitable for shop or field service on many Cat diesel models.

Which Caterpillar engines does this set work with?

The kit covers a broad selection of Caterpillar models used in trucks, generators and heavy equipment. It includes specialized pieces that match ports and tolerances for common Cat families so you can service multiple engine lines with one kit.

• Injector sleeve tools fit C-10, C-12, C-15, C-16, C-18 and 3406E engines
• 9U-7227 injector height tool for 3406E, C-15 and C-16
• J-38587-A barring socket compatible with 3200/3406 series and related models
• J-42083 timing pin/adapter supports C-7, C-9, C-11, C-13, C-15, C-16 and several others

What tools are included and how do they help during service?

The set contains nine primary tools and multiple fittings to remove and install injector sleeves, measure and set injector height, secure the engine for timing work, and extract sleeves or studs cleanly. Each part is built to prevent nicks, scoring or misalignment that can occur with improvised methods.

• 9U-6877 thrust bearing and 9U-7258 drive cap for even force application
• 221-9778 puller stud, 128-7889 puller bridge and 4K-0367 full nut for controlled extraction
• 5P-8247 hard washer to distribute load and protect components
• 9U-7227 injector height tool for precise injector tip positioning
• J-38587-A engine barring socket and J-42083 timing pin for engine rotation and timing checks

How does this kit protect components and speed up repairs?

Using the correct sleeves, drivers and puller geometry reduces the risk of deforming injector bores or sleeves, so you avoid costly rework or replacements. The precise height gauge removes guesswork when setting injector protrusion, and the barring socket allows controlled rotation to align timing points quickly.

• Evenly distributed extraction force prevents sleeve distortion and cylinder head damage
• Accurate injector-height adjustment reduces repeat adjustments and troubleshooting
• Durable, machined steel components resist wear and maintain tolerances across many jobs
• Included adapters and studs remove the need for multiple separate purchases

Who is this for: The Yuesstloo 9U-6891 + 9U-7227 kit is designed for diesel mechanics, fleet maintenance shops, heavy-equipment technicians and experienced DIYers working on Caterpillar engines. If you regularly service Cat C-series or 3406-series engines and need a durable, complete sleeve removal/install and injector-height solution that reduces downtime and protects engine parts, this kit provides the core tools to perform those tasks professionally.