Harley OEM Twin Cam Cylinders Pistons Set 16593-99 3.75
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OEM Harley-Davidson Twin Cam cylinder and piston take-off set with cylinder part number 16593-99 and additional markings B6903 and A95C4. The set is in very nice overall condition and includes the pistons shown.
Part Number / Markings: Cylinders 16593-99 / markings B6903 & A95C4
Condition: Used – Very Good Take-Off Condition
DETAILS: The cylinder bores measure approximately 3.75 inches and show no visible scoring from inspection. The cylinders and pistons appear clean and reusable, but piston-to-cylinder clearance, ring condition, and piston identification should be checked before installation.
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, carbon staining, light oxidation, gasket residue, 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.
FITMENT NOTES: The 16593-99 cylinder is used across Twin Cam 88ci and 96ci applications because both share a 3.75-inch bore, but the pistons differ between the 88ci and 96ci engines due to the different stroke and piston/wrist-pin configuration. Because the piston part numbers were not supplied, this set should be listed as requiring verification of 88ci versus 96ci piston application before installation.
FITMENT: Buyer is responsible for verifying fitment before purchase. Fitment information is provided as a reference based on OEM numbers, casting marks, measured bore size, and published references. Engine parts may have been changed or modified over time. Compare part numbers, bore, piston markings, wrist-pin size, cylinder height, base spigot, and photos with your existing engine components before installation.
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. Engine parts are packed carefully according to their size and weight.
