Drag Specialties Cast Piston Kit - 3.750" Bore - +.005" - 21930-99-005

Enhance your Harley-Davidson Twin Cam engine's performance and reliability with the Drag Specialties Cast Piston Kit. Designed as an OEM-quality replacement, this kit provides a durable and precise fit for restoring your motorcycle's power.

Description

The Drag Specialties Cast Piston Kit is engineered to meet or exceed OEM specifications, making it an ideal choice for rebuilding or repairing your Twin Cam motor. Crafted from high-quality cast aluminum alloy, these pistons offer exceptional durability and heat resistance, crucial for the demanding environment of a motorcycle engine. Each piston features a precise 3.750" bore size and is available with a +0.005" oversize, ensuring a perfect fit for reconditioned cylinders. With a 9.0:1 compression ratio, this piston kit is designed to deliver reliable power output consistent with original factory performance. Whether you're undertaking a full engine overhaul or simply replacing worn components, this kit provides the robust foundation your Harley-Davidson needs to perform at its best. The comprehensive kit includes two pistons, along with their respective wrist pins and clips, simplifying the installation process and ensuring all necessary components are at hand. These pistons are also designed to accept either OEM or Hastings piston rings, offering flexibility for your build.

Features & Highlights

• Premium Cast Aluminum Alloy Construction: Engineered to OEM-quality standards for exceptional durability, heat resistance, and long-lasting performance in demanding engine environments.
• Optimized for Twin Cam Motors: Specifically designed as an ideal replacement piston kit for Harley-Davidson Twin Cam engines, ensuring perfect fitment and reliable operation.
• Restores Factory Performance: With a precise 3.750" bore size (and +0.005" oversize option) and 9.0:1 compression ratio, this kit helps restore your engine's original power and efficiency.
• Complete Piston Kit: Includes two high-quality pistons, along with corresponding wrist pins and clips, providing all essential components for a straightforward installation.
• Flexible Ring Compatibility: Designed to accept both OEM and Hastings piston rings, offering convenient options for your engine build or repair.

Technical Specifications

• Type: Replacement
• Style: Cast
• Units: Kit
• Piston Material: Aluminum Alloy
• Bore Size: 3.750"
• Bore Oversize: +0.005"
• Compression Ratio: 9.0:1

Important to Know

• Piston rings are not included with this kit and must be purchased separately. This piston kit is compatible with both OEM and Hastings piston rings.