Used Harley Ironhead Sportster cylinder with an approximately 3.25-inch measured bore and no confirmed service part number.
Part Number / Markings: No readable part number supplied
Condition: Used – heavily overbored / machine-shop inspection required
USED PARTS DISCLAIMER: This is a used motorcycle part and may show normal signs of age, installation, removal, storage, and previous use including scratches, scuffs, discoloration, surface corrosion, paint loss, or other cosmetic wear. Any known damage or defects are noted when known. Unless otherwise stated, the photos show the actual item being sold and are considered part of the description.
BORE / IDENTIFICATION: Measured 3.25 in. Factory 1000cc bore is approximately 3.188 in. A +.060 bore is about 3.248 in, so this measurement is consistent with approximately +.060 oversize.
FITMENT NOTES: The measurement identifies this as a 1000cc-size Ironhead cylinder and is consistent with roughly .060 over standard. That is a significant overbore, so wall thickness, taper, out-of-round, and remaining service life should be professionally checked before use.
FITMENT: Buyer is responsible for verifying fitment before purchasing. Fitment information is provided as a reference based on available part numbers, casting marks, measured dimensions, donor information, and published references. Motorcycles may have been modified over time. Compare the part number, casting, mounting points, bore, dimensions, electrical connections, and photos with the part currently on your motorcycle.
QUESTIONS? Send us a message before purchasing if you need additional measurements, photos, condition details, or clarification on what is included.
SHIPPING: Orders are typically processed and shipped within 1–2 business days after payment. Tracking is provided once the order ships. Parts are packed according to size, weight, and type. Large, heavy, or oversized items may require additional handling or shipping arrangements.