Hastings Replacement Piston Rings for 4.000" Bore

Upgrade your motorcycle's engine performance and longevity with the Hastings Replacement Piston Rings, engineered for precise fitment with a 4.000" bore. This comprehensive set provides superior sealing and heat transfer, ensuring optimal power delivery and oil control for your high-performance engine.

Description

Designed to meet or exceed OEM specifications, this Hastings 4.000" bore piston ring set is a crucial component for any engine rebuild or refresh, especially for 114" displacement engines. Each set includes top compression rings, second compression rings, and oil control rings, meticulously crafted for peak performance. The top compression rings feature a Barrel Face design, enhanced with a PVD (Physical Vapor Deposition) coating. This advanced coating significantly aids in heat transfer between the piston and cylinder wall, while effectively controlling combustion chamber gases. This allows the piston to efficiently transfer the energy of expanding combustion gases directly to the crankshaft, maximizing power output. The second compression rings are Napier style, featuring a reverse twist and a taper-machined ring face. This innovative design duplicates the OD bottom side scraping edge of a positive twist torsional ring, promoting superior side sealing. This critical feature prevents oil from being forced under and behind the ring, leading to better oil economy and reduced consumption. For optimal lubrication management, the oil control rings are a Three Piece Flex Vent design. This three-piece construction allows for rails with a small cross-sectional area, ensuring excellent conformability to the cylinder bore. Uniform pressure is maintained through four steel rails and two expanders, guaranteeing positive oil control across all operating conditions. Proudly made in the USA, this Hastings piston ring set delivers reliability and performance you can trust.

Features & Highlights

• Advanced Top Compression Rings: Features a Barrel Face design with PVD coating for enhanced heat transfer and superior combustion gas control, ensuring maximum power delivery.
• Optimized Second Compression Rings: Napier-style rings with a reverse twist and taper-machined face promote exceptional side sealing, significantly improving oil economy and reducing consumption.
• Precision Oil Control: Three Piece Flex Vent oil control rings offer a unique three-piece design with small cross-sectional rails for superior bore conformability and uniform pressure, ensuring positive oil management.
• Complete Set for Two Pistons: Each package provides a full complement of rings for two pistons, including top, second, and oil control rings, ready for a comprehensive engine overhaul.
• Durable American Craftsmanship: Manufactured with pride in the USA, guaranteeing high-quality materials and construction for long-lasting reliability and performance.

Technical Specifications

• Type: Replacement
• Units: Set (for two pistons)
• Bore Size: 4.000"
• Piston Size: Standard
• Displacement: 114"
• Product Name: Piston Ring Set
• Vendor Part Number: WG2197601|2C5232