Wiseco Pro-Lite 4-Stroke Piston

• Product Details

  Wiseco leads the performance aftermarket by producing the highest quality forged pistons in the U.S.A. Wiseco is unique because they forge all of their own pistons in-house, and produce all of their own forge tooling in the U.S.A. This allows Wiseco to control all aspects of their manufacturing process from raw bar to skirt coating on the finished parts.

  • Much stronger than stock. Forged using the highest quality materials available resulting in a piston that provides excellent performance and durability.
  • Tight tolerances for quiet running. Featuring a race-ready dome finish with smooth edges for improved combustion flow.
  • More hours with peak performance between piston changes. The rings, wrist pin, and circlips are manufactured by Wiseco under their strict quality standards to make sure every piston kit fits correctly, ensuring top performance and long-lasting durability are achieved.
  • The Wiseco Pro-Lite Piston includes: piston, ring(s), wrist pin, and circlips.

  Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.

  Note: Image is for reference ONLY, actual contents will vary based on fitment.

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• Wiseco Pro-Lite 4-Stroke Piston Review

• 20 Questions about the Wiseco Pro-Lite 4-Stroke Piston

• Fitment

• # Part Numbers for the Wiseco Pro-Lite 4-Stroke Piston

  Product Variant	Manufacturer Part #
  +6mm Oversize	4982M08300-CL77
  .020 Oversize	4737M10050, 4816M06600, 4798M03950-CL77, 4880M04750-CL77, 4875M05350, 40133M10050, 4752M05450, 4689M07350
  .040 Oversize	4737M10100, 40118M05350, 4816M06650, 4989M10100, 4880M04800, 4875M05400, 4815M05800, 4752M05500, 4689M07400
  .050 Oversize	40109M08350
  .060 Oversize	4816M06700-CL77, 4798M04050, 40133M10100, 4689M07450-CL77
  .080	4842M07900
  .080 Oversize	40098M05200-CL77, 4915M06800, 4816M06750, 4755M09800, 4606M08700, 4798M04100, 4630M08000, 11035M07800-CL77, 4731M09700, 4713M09200, 4689M07500, 4872M07900, 4952M07900, 4785M09700
  .090 Oversize	40011M07900
  .100 Oversize	4989M10241, 4715M10240
  .120 Oversize	4755M09900, 4606M08800
  .160 Oversize	4815M06100
  .200 Oversize	4890M10100
  12:1 Compression Stock Bore	4900M09600
  13:1 Compression Stock Bore	4901M09600
  Standard Bore 12.5:1	40089M09600
  Standard Bore 13:1	40095M09600
  Stock Bore	4606M08500, 4731M09500, 4915M06600, 40065M06600, 4829M07800, 4949M07800, 40003M07680, 4973M09600, 4904M07700, 4980M09600, 4911M09550, 4713M09000, 4807M09920, 4737M10000, 4902M10200, 4843M07700, 40007M07700, 4574M07400, 4848M09400, 4419M08300, 4865M09500, 4693M09500, 4785M09500, 4882M07700, 4952M07700, 4649M09200, 40111M09700, 40116M07700, 40114M07680, 40069M07600, 40124M07700, 40083M05000, 4816M06550, 40145M07680, 4979M09600, 4989M10000, 4715M10000-CL77, 4880M04700, 4630M07800, 40133M10000, 40074M07800, 40144M07800, 40056M08800, 40091M09500, 4805M09500, 40064M09500, 4981M07600, 4815M05700, 40151M07700, 4752M05400, 4689M07300, 40075M10200
  Stock Bore / 11:1	4941M08900
  Stock Bore / 12.5:1 Compression	40086M09600
  Stock Bore / 12:1	4820M09600, 4978M09600, 4942M08900
  Stock Bore / 13:1 Compression	40110M09600
  Stock Bore / 14:1 High Compression	40129M07680
  Stock Bore 12.2:1 CR	4937M09700
  Stock Bore 12.5:1	4755M09600
  Stock Bore 12.5:1 CR	40001M09700, 40082M09600, 4947M10000
  Stock Bore 12.7:1 CR	4872M07700
  Stock Bore 12.8:1 CR	40125M09603
  Stock Bore 12:1 CR	4869M09550
  Stock Bore 13.2:1 CR	40009M07700, 4954M09600
  Stock Bore 13.4:1 CR	4921M07700
  Stock Bore 13.5:1	4881M07700
  Stock Bore 13.5:1 CR	4920M07700, 40019M07700, 40072M07700, 40002M09700, 40136M09603, 4858M07700
  Stock Bore 13.9:1 CR	4928M07700
  Stock Bore 13:1 CR	40096M09600, 4870M09550
  Stock Bore 14.2:1 CR	40010M07700
  Stock Bore 14.5:1 CR	40020M07700, 40015M08800
  Stock Bore 14:1 CR	4927M07700, 40094M07700
  Wiseco Pro-Lite 4-Stroke Piston	WP40199M09700

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