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As the leader in forged racing pistons, JE Pistons has been at the forefront of V-Twin and Harley-Davidson piston performance for decades, with over 75 years of experience. JE?s carefully developed line of V-Twin pistons is engineered, forged and machined 100% in the USA and are designed for each specific engine and use application to provide the ultimate combination of durability and performance. From fun and powerful cruisers to all-out V-Twin drag racing, JE Pistons? performance is proven with every handful of throttle. Equip your bike with the best in forged pistons.
- Ultra Series Forging
- Ceramic Crown Coating
- Skirt Coating
- Lateral Gas Ports
Attributes:
- Brand Name: JE Pistons
- GTIN: 00193564561152
- Bore Diameter: 4.310
- Bore Diameter - Web: 4.310 IN
- Compression Height: 1.080
- Compression Ratio: 10.25:1 / 85.5 CC Head
- Connecting Rod Length: 8.014
- Cylinder Head: M8 4V
- Deck Height: -0.005
- Engine: Milwaukee-Eight
- Engine - Web: Milwaukee-Eight
- Engine Family: Harley V-Twin
- Engine Stroke: 4.500
- Engine Type: ICE
- File Fit: Yes
- Forging Type: FSR
- Industry: Powersports
- Make: Harley-Davidson
- Make - Web: Harley-Davidson
- OEM Bore Diameter: 4.250
- Oil Ring Axial Height: 3.00
- Oil Ring Radial Width: 0.0145
- Oil Ring Thickness: 3.00
- Out of Stock Message: Please Allow Approximately 3 Weeks or Less for Shipping
- Oversized: Yes
- Oversized Amount: 0.060
- Piston Average Weight: 454
- Piston Head Type: Dish
- Piston Material: 2618
- Piston Quantity: 1
- Piston Series: JE Pistons
- Piston Sub-Series: Ultra Series
- Piston Volume: -17.70
- Product Market: V-Twin
- Product Type: Engine Piston
- Ring Quantity: 1
- Ring Set Included: Yes
- Ring Set Part Number: CSH4434310-1
- Ring Set Thickness: 0.043 IN x 0.043 IN x 3.00 MM
- Second Compression Ring Thickness: 0.043
- Second Ring Axial Height: 0.043
- Second Ring Facing Material: Ductile Iron
- Second Ring Material: Ductile Iron
- Second Ring Radial Width: 0.170
- Second Ring Shape: Napier
- Third Ring Facing Material: Chrome
- Third Ring Material: Chrome
- Third Ring Shape: 3 Piece Oil
- Top Compression Ring Thickness: 0.0430
- Top Ring Axial Height: 0.0430
- Top Ring Facing Material: AP Stainless
- Top Ring Material: AP Stainless
- Top Ring Radial Width: 0.173
- Top Ring Shape: Barrel
- Wrist Pin Included: Yes
- Wrist Pin Inner Diameter: 0.757
- Wrist Pin Length: 2.500
- Wrist Pin Material: 9311 Nickel Carbon Steel Alloy
- Wrist Pin Outer Diameter: 0.927
- Wrist Pin Part Number: 927-2500-17-93C
- Wrist Pin Retainer Diameter: 0.927
- Wrist Pin Retainer Included: Yes
- Wrist Pin Retainer Material: Chrome Silicon
- Wrist Pin Retainer Part Number: 927-073-MW
- Wrist Pin Retainer Quantity: 2
- Wrist Pin Retainer Style: Wire Lock
- Wrist Pin Retainer Thickness: 0.073
- Wrist Pin Style: Straight Wall
- Wrist Pin Wall Thickness: 0.170
Extended Information:
- Country of Origin: United States
- Emissions : Racing or Pre-Emissions Use Only
- Life Cycle Status: Available To Order
Packing Information:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 5.000 x 5.000 x 5.000 inches
- Weight: 1.500 lb
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Shipping + Returns Shipping Policy We aim to provide a seamless shipping experience, ensuring your order arrives on time and in perfect condition. Orders are typically processed within 1-2 business days, and shipping times vary based on your location. You will receive a tracking number as soon as your order is dispatched. We offer both standard and expedited shipping options. Please note, delivery times may be affected by holidays or high demand periods. International Shipping For international orders, shipping costs and delivery times will depend on the destination. Additional customs fees may apply, which are the responsibility of the customer. Returns Policy We want you to be completely satisfied with your purchase. If you need to return an item, please contact us within 30 days of receiving it. To be eligible for a return, items must be unused, in original condition, and with all tags attached. How to Initiate a Return To start a return, contact our customer support team with your order number and reason for return. Once approved, we’ll provide instructions on how and where to send your package. Please note that return shipping costs are the responsibility of the customer, unless the item was damaged or incorrect upon arrival. Refunds Once we receive your returned item, our team will inspect it and process your refund. You’ll receive a confirmation email once your refund is complete, typically within 5-7 business days.