Compatible with Harley Davidson Roller Twin Cam Tappets Lifters Set | 1999-2016 Big Twin High-Performance Replacement | Precision-Machined Quiet Hydraulic Tappets | OEM 18538-99C Replacement

Elevate your Compatible with Harley Davidson Big Twin’s power and refinement with the Compatible with Harley Davidson Roller Twin Cam Tappets Lifters Set—a precision-engineered upgrade for 1999-2016 unmodified Big Twin engines. Designed to replace OE tappets (OEM 18538-99C), these roller tappets enhance valve operation efficiency, unlocking hidden horsepower while reducing noise for a quieter, more responsive ride. Why Choose These Tappets? Power & Performance: The roller design minimizes friction and improves valve timing, boosting low-end torque and high-RPM horsepower—ideal for riders seeking a noticeable performance edge. Quiet & Smooth Operation: Precision-machined surfaces ensure seamless contact with cams and hydraulic components Built to Last: Made from Grade 20Cr alloy steel, these tappets resist wear, corrosion, and heat degradation, maintaining peak performance even after thousands of miles. Universal Fit for Classic Harleys: Compatible with 1999-2016 Big Twin engines across popular models, including Dyna, Touring (Electra Glide, Road Glide), Fatboy, Heritage Softail, Sportster, and more Easy Installation: Directly swaps with factory tappets—no special tools or modifications required. Simply remove the old tappets and install these for an instant upgrade Compatible Models (1999-2016): Blackline (2011-2013) / Breakout (2013-2016) / Cross Bones (2008-2011) / CVO (2014-2016) / Dyna (all years) / Touring (Electra Glide 1999-2016, Road Glide 1999-2016, etc.) / Fatboy (all years) / Heritage Softail (all years) / Iron 883 (2009-2016) / Night Train (2000-2009) / Softail (all years) / Sportster 1200/883 (all years) / Tri Glide (2009-2016) / Ultra Limited (2014-2016) Product Specifications Material: Grade 20Cr Alloy Structural Steel (body) OEM Replacement: 18538-99C Function: Replaces OE tappets to improve valve efficiency, boost horsepower, and reduce noise

• High-Performance Replacement for Harley Big Twin Engines: Specifically designed for 1999-2016 Harley Davidson Big Twin engines (unmodified), directly replaces OE tappets to optimize valve operation efficiency and boost engine horsepower.
• Precision-Machined for Quiet Operation: CNC-machined to ensure perfect alignment with cams and hydraulic systems, reducing noise and vibration for a smoother, quieter ride.
• Durable Grade 20Cr Alloy Construction: Crafted from high-grade 20Cr alloy structural steel with a cast body, offering superior wear resistance, corrosion resistance, and long-term stability for consistent hydraulic performance.
• Wide Compatibility Harley Models: Fits 1999-2016 Harley Big Twin engines across iconic models like Dyna, Touring (Electra Glide, Road Glide), Fatboy, Heritage Softail, Sportster, and more (full list below).
• Plug-and-Play Installation: Directly replaces factory tappets without modifications—no cutting, welding, or adjustments needed. Novice riders can install in minutes.