Piston Super Duty 4.125" Bore M8 114/117 To 120" Std
Piston Super Duty 4.125" Bore M8 114/117 To 120" Std
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Piston Super Duty 4.125" Bore M8 114/117 To 120" Std
Enhance your engine's performance with the Piston Super Duty 4.125" Bore, designed specifically for M8 models from 114 to 120 inches. This premium piston combines cutting-edge technology with robust materials, ensuring your motorcycle runs smoothly and efficiently.
Key Features:
- Anodized Top Ring Groove and Crown: Provides improved durability and wear resistance, enhancing the overall performance of your engine.
- Line2Line Abradable Skirt Coating: Applied to a total thickness of .003", this innovative coating allows for a ZERO initial fit, honing in for a tight, quiet running clearance.
- Round Wire Locks: Ensures secure retention of piston rings, providing peace of mind during high-performance rides.
- Premium Hastings Steel Nitride Top Ring: Featuring a 1.2mm thickness, it offers exceptional strength and longevity.
- Ductile Napier Second Ring: Designed to improve oil control for optimum engine performance.
- Forced Wrist Pin Oiling: Guarantees enhanced lubrication, reducing friction and ensuring smooth operation.
- M8 Version with Flat Top: Specifically engineered with a compression height of 1.083" and 1.2cc, this piston is optimized for performance and efficiency.
- Valve Pockets Sized for Oversized Valves: Accommodates 1mm oversized valves for enhanced airflow and power output.
Benefits:
- Boosts engine power and efficiency, making it perfect for both daily riders and performance enthusiasts.
- Reduces noise and vibration, contributing to a more enjoyable riding experience.
- Enhances longevity and reliability of your engine components, providing excellent value for your investment.
Upgrade to the Piston Super Duty 4.125" Bore M8 and experience the difference in performance and reliability. Whether you are tuning your bike for a race or simply looking for an upgrade, this piston is engineered to meet your needs.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

