{"product_id":"iame-ka100-piston-pin-grade-b","title":"(50) IAME KA100 Piston Pin 14x39mm – Grade \"B\"","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 piston pin (Grade \"B\")\u003c\/strong\u003e is a factory OEM wrist pin measuring 14mm diameter by 39mm length for the KA100 100cc reed-jet kart engine. The \"B\" grade designation indicates a specific tolerance band within IAME's manufacturing classification system. Selecting the correct pin grade ensures proper fit between the piston pin bore and the small end bearing, which is critical for reliable engine operation and longevity.\u003c\/p\u003e\n\u003cp\u003eThis piston pin fits all IAME KA100 pistons and connects the piston to the connecting rod via the small end roller cage. Each pin is retained by two 1.0mm circlips (part number 10343, sold separately). When rebuilding your KA100 top end, always inspect the pin for scoring, discoloration, or uneven wear patterns. Reuse is acceptable if the pin passes visual and dimensional inspection, but replacement is recommended during a full rebuild.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 14mm diameter x 39mm length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e \"B\" tolerance band\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCirclips:\u003c\/strong\u003e Sold separately (10343)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways match the piston pin grade to your piston and small end bearing clearance specifications per the IAME service manual. If unsure which grade to order, consult your engine builder. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47785477144797,"sku":"B-10321-B","price":35.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100PistonWristPin_9447d9b3-d2a3-47c9-9ba0-97d0ff35cff9.png?v=1776176272","url":"https:\/\/cmckarting.com\/products\/iame-ka100-piston-pin-grade-b","provider":"CMC Karting","version":"1.0","type":"link"}