Description
Proper rocker arm adjustment is critical for maintaining valve train precision and maximizing engine performance—even small clearance errors can lead to incomplete combustion and power loss. This genuine Yella Terra adjusting screw and lock nut kit ensures your valvetrain stays dialed in, whether you’re fine-tuning a street engine or maintaining race-proven equipment. A simple bolt-on replacement that directly impacts engine reliability and efficiency.
- 28.4mm adjusting screw
- Steel construction
- Lock nut included
- Yella Terra OEM quality
- Rocker arm adjuster
- Kit format
- MPN: YT5117
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