Drag Specialties Piston Kit - 3.750" Bore - Standard - 21930-99-STD

Enhance your engine's reliability and performance with the Drag Specialties Twin Cam Piston Kit. Engineered for seamless OEM replacement, this high-quality kit provides the durability and precise fitment essential for your motorcycle's powertrain.

Description

This Drag Specialties piston kit is the ideal solution for restoring or rebuilding your Harley-Davidson Twin Cam motor. Crafted from robust cast aluminum alloy, these motorcycle pistons are designed to meet or exceed original equipment manufacturer (OEM) specifications, ensuring long-lasting durability and consistent performance. With a standard 3.750" bore size and a 9.0:1 compression ratio, this kit provides the optimal characteristics for maintaining your engine's power and efficiency. Each cast aluminum piston is precision-engineered for a perfect fit, making it an excellent choice for a reliable OEM replacement piston. The kit includes everything needed for a complete piston installation, ensuring your Twin Cam engine runs smoothly and dependably for miles to come.

Features & Highlights

• Premium OEM-Quality Construction: Crafted from durable cast aluminum alloy, these pistons are designed to meet or exceed original equipment specifications, ensuring exceptional longevity and consistent performance for your Twin Cam engine.
• Direct Twin Cam Fitment: Specifically engineered for Harley-Davidson Twin Cam motors, guaranteeing precise fitment and straightforward installation for an OEM replacement piston.
• Optimized for Performance: Featuring a 9.0:1 compression ratio and a standard 3.750" bore, this kit is perfectly suited for restoring original engine characteristics and maintaining optimal power output.
• Complete Kit for Installation: Each package includes two high-quality pistons, along with the necessary wrist pins and clips, providing a comprehensive solution for your engine rebuild or maintenance.
• Versatile Ring Compatibility: Designed to accept either OEM or Hastings piston rings, offering flexibility in choosing your preferred ring set for a customized engine build.

Technical Specifications

• Type: Replacement
• Style: Cast
• Units: Kit
• Bore Size: 3.750"
• Bore Oversize: Standard
• Piston Material: Aluminum Alloy
• Compression Ratio: 9.0:1
• Vendor Part Number: 21930-99-STD

Important to Know

• Piston rings are not included and must be purchased separately.
• Compatible with OEM or Hastings piston rings.