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Wiseco

Wiseco Tracker Series Piston Kit, 3.875 IN Bore, 10.5:1 CR

$322.95 $290.99 Save $31.96

SKU: W00C K0210PS

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Overview

The Wiseco K0210PS Tracker Series is a piston kit designed to upgrade Harley-Davidson Twin Cam engines. This kit provides a 10.5:1 compression ratio and increases displacement to 103 cubic inches, utilizing a 3.875-inch bore and a 4.375-inch stroke.

The Tracker Series features a forged piston crown with generous valve pockets suitable for larger valves and cams. It includes precision-fit rings for optimal sealing, force-fed pin oiling for enhanced lubrication, and an ArmorGlide skirt coating to reduce friction and improve scuff resistance. Gasket kits are sold separately.
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Part #: K0210PS

At the end of the day, it's all about the the freedom riding gives us, which is why Wiseco believes the reliability and performance benefits of forged pistons shouldn't have to break the budget. Enter Tracker Series, a no-frills line of pistons for Harley-Davidson engines designed to offer the forged strength Wiseco is known for at a mid-level price point. With multiple configurations available for a variety of different Harley engine platforms, Tracker Series pistons will get you to the checkers.

Features:

  • Proprietary Near-Net Forging technology reduces the amount of finish machining required, offering lower cost without sacrificing strength and longevity
  • ArmorFit skirt coating reduces operating friction and increases wear resistance for a better performing, longer lasting part
  • Supplied in kits containing pistons, rings, wrists pins, and circlips all under one part number
  • Ring sets include 3mm oil ring assembly, providing better oil control for consistent cylinder lubrication and reduced blow-by resulting in improved durability and performance

Wiseco Tracker Series Piston Kit, 3.875 in. Bore, 10.5:1 CR

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandWiseco
Part NumberW00C K0210PS

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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