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              "value": "Pistons & Pins",
              "url": "/python/html6/menu_attr_pair/1000/213000000/213751000/menu_attr_pair_DisplayName_PistonsPins_1_19917385aa.html"
            },
            {
              "value": "Rebuild Kits",
              "url": "/python/html6/menu_attr_pair/1000/218000000/218419000/menu_attr_pair_DisplayName_RebuildKits_1_5920168937.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/220000000/220910000/menu_attr_pair_DisplayName_Pistons_1_598ee3823d.html"
        },
        {
          "name": "Exterior_finish",
          "values": [
            {
              "value": "Chrome",
              "url": "/python/html6/menu_attr_pair/1000/161000000/161598000/menu_attr_pair_Exteriorfinish_Chrome_1_b117f759c3.html"
            },
            {
              "value": "Machined",
              "url": "/python/html6/menu_attr_pair/1000/134000000/134514000/menu_attr_pair_Exteriorfinish_Machined_1_13523e1728.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/161000000/161598000/menu_attr_pair_Exteriorfinish_Chrome_1_b117f759c3.html"
        },
        {
          "name": "Feature",
          "values": [
            {
              "value": "OE replacement piston",
              "url": "/python/html6/menu_attr_pair/1000/253000000/253463000/menu_attr_pair_Feature_OEreplacementpiston_1_2d761e26eb.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/253000000/253463000/menu_attr_pair_Feature_OEreplacementpiston_1_2d761e26eb.html"
        },
        {
          "name": "Fit_type",
          "values": [
            {
              "value": "Vehicle Specific",
              "url": "/python/html6/menu_attr_pair/1000/160000000/160797000/menu_attr_pair_Fittype_VehicleSpecific_1_ede1a5f359.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/160000000/160797000/menu_attr_pair_Fittype_VehicleSpecific_1_ede1a5f359.html"
        },
        {
          "name": "Generic_keyword",
          "values": [
            {
              "value": "Dirt Bike Yamaha WR 450 F 2016,Dirt Bike Yamaha WR 450 F 2017,Dirt Bike Yamaha WR 450 F 2018,Dirt Bike Yamaha YZ 450 F 2014,Dirt Bike Yamaha YZ 450 F 2015",
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            },
            {
              "value": "bicycle",
              "url": "/python/html6/menu_attr_pair/1000/69000000/69782000/menu_attr_pair_Generickeyword_bicycle_1_47ef5456c5.html"
            },
            {
              "value": "bike",
              "url": "/python/html6/menu_attr_pair/1000/144000000/144173000/menu_attr_pair_Generickeyword_bike_1_bf32ec904f.html"
            },
            {
              "value": "motorbike",
              "url": "/python/html6/menu_attr_pair/1000/258000000/258317000/menu_attr_pair_Generickeyword_motorbike_1_d96306dc97.html"
            },
            {
              "value": "motorcycle",
              "url": "/python/html6/menu_attr_pair/1000/5000000/5732000/menu_attr_pair_Generickeyword_motorcycle_1_36fdbb1860.html"
            },
            {
              "value": "namura",
              "url": "/python/html6/menu_attr_pair/1000/135000000/135018000/menu_attr_pair_Generickeyword_namura_1_92f7e72ae1.html"
            },
            {
              "value": "piston",
              "url": "/python/html6/menu_attr_pair/1000/128000000/128832000/menu_attr_pair_Generickeyword_piston_1_78a4d17336.html"
            },
            {
              "value": "prox",
              "url": "/python/html6/menu_attr_pair/1000/147000000/147421000/menu_attr_pair_Generickeyword_prox_1_9e2283deb1.html"
            },
            {
              "value": "stock piston wiseco",
              "url": "/python/html6/menu_attr_pair/1000/63000000/63910000/menu_attr_pair_Generickeyword_stockpistonwiseco_1_8b8ee8eb17.html"
            }
          ],
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        },
        {
          "name": "Height",
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              "value": "1020",
              "url": "/python/html6/menu_attr_pair/1000/100000000/100113000/menu_attr_pair_Height_1020_1_08067c2a8e.html"
            },
            {
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              "url": "/python/html6/menu_attr_pair/1000/196000000/196940000/menu_attr_pair_Height_2560_1_eb666e68b3.html"
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            {
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              "url": "/python/html6/menu_attr_pair/1000/21000000/21437000/menu_attr_pair_Height_375_1_ac1d5ff7c9.html"
            },
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              "url": "/python/html6/menu_attr_pair/1000/259000000/259800000/menu_attr_pair_Height_3799999996124_1_e9a71a7ee8.html"
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              "value": "4.0",
              "url": "/python/html6/menu_attr_pair/1000/173000000/173060000/menu_attr_pair_Height_40_1_6c98cbc20c.html"
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              "value": "4.00",
              "url": "/python/html6/menu_attr_pair/1000/115000000/115474000/menu_attr_pair_Height_400_1_3ca416406c.html"
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              "value": "4.6",
              "url": "/python/html6/menu_attr_pair/1000/74000000/74803000/menu_attr_pair_Height_46_1_fd54ab9522.html"
            },
            {
              "value": "4.60",
              "url": "/python/html6/menu_attr_pair/1000/33000000/33868000/menu_attr_pair_Height_460_1_84a65cad20.html"
            },
            {
              "value": "500",
              "url": "/python/html6/menu_attr_pair/1000/82000000/82433000/menu_attr_pair_Height_500_1_e800e4b696.html"
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            {
              "value": "75",
              "url": "/python/html6/menu_attr_pair/1000/263000000/263862000/menu_attr_pair_Height_75_1_a0092a3e31.html"
            },
            {
              "value": "9.652",
              "url": "/python/html6/menu_attr_pair/1000/217000000/217407000/menu_attr_pair_Height_9652_1_4e01dbff3d.html"
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          ],
          "name_url": "/python/html6/menu_attr_pair/1000/100000000/100113000/menu_attr_pair_Height_1020_1_08067c2a8e.html"
        },
        {
          "name": "Identifier",
          "values": [
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            {
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        {
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              "url": "/python/html6/menu_attr_pair/1000/65000000/65206000/menu_attr_pair_IdentifierType_UPC_1_477407fdb7.html"
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        {
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          ],
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          "name": "Is_expiration_dated_product",
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        },
        {
          "name": "ItemName",
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              "value": "Vertex 23958B Piston Kit - Standard Bore 96.94mm, 12.5:1 Compression",
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            {
              "value": "Vertex 23958B Replica Piston Kit",
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            },
            {
              "value": "Vertex Piston Kit 23958B Compatible With/Replacement For Yamaha WR 450 F 2016-2018, YZ 450 F 2014-2017, YZ 450 FX 2016-2018 1SL-116A0-00-00",
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        {
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              "value": "Vertex 23958B Piston Kit - Standard Bore 96.94mm, 12.5:1 Compression",
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            {
              "value": "Vertex Piston Kit 23958B Compatible With/Replacement For Yamaha WR 450 F 2016-2018, YZ 450 F 2014-2017, YZ 450 FX 2016-2018 1SL-116A0-00-00",
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        {
          "name": "Item_package_quantity",
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        {
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        {
          "name": "List_price",
          "values": [
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              "value": "212.18",
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            {
              "value": "215.95",
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            {
              "value": "250.39",
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        {
          "name": "Man",
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              "value": "Vertex",
              "url": "/python/html6/menu_attr_pair/1000/28000000/28003000/menu_attr_pair_Man_Vertex_1_6ddd65da20.html"
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        },
        {
          "name": "ManufacturerPartsWarrantyDescription",
          "values": [
            {
              "value": "Parts",
              "url": "/python/html6/menu_attr_pair/1000/217000000/217989000/menu_attr_pair_ManufacturerPartsWarrantyDescription_Parts_1_53c08cec89.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/217000000/217989000/menu_attr_pair_ManufacturerPartsWarrantyDescription_Parts_1_53c08cec89.html"
        },
        {
          "name": "Marking_type",
          "values": [
            {
              "value": "epa_registration_number",
              "url": "/python/html6/menu_attr_pair/1000/109000000/109856000/menu_attr_pair_Markingtype_eparegistrationnumber_1_2444270bae.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/109000000/109856000/menu_attr_pair_Markingtype_eparegistrationnumber_1_2444270bae.html"
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        {
          "name": "Material",
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              "url": "/python/html6/menu_attr_pair/1000/40000000/40564000/menu_attr_pair_Material_aluminum_1_2d43bf395d.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/40000000/40564000/menu_attr_pair_Material_aluminum_1_2d43bf395d.html"
        },
        {
          "name": "MaterialType",
          "values": [
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              "value": "aluminum",
              "url": "/python/html6/menu_attr_pair/1000/230000000/230229000/menu_attr_pair_MaterialType_aluminum_1_a96fac0eae.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/230000000/230229000/menu_attr_pair_MaterialType_aluminum_1_a96fac0eae.html"
        },
        {
          "name": "Memorabilia",
          "values": [
            {
              "value": "False",
              "url": "/python/html6/menu_attr_pair/1000/184000000/184136000/menu_attr_pair_Memorabilia_False_1_903cccc9ba.html"
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            },
            {
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              "url": "/python/html6/menu_attr_pair/1000/154000000/154468000/menu_attr_pair_Mpns_23958B_1_1aa5268513.html"
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        {
          "name": "NumberOfItems",
          "values": [
            {
              "value": "1",
              "url": "/python/html6/menu_attr_pair/1000/6000000/6408000/menu_attr_pair_NumberOfItems_1_1_847345067b.html"
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          "name_url": "/python/html6/menu_attr_pair/1000/6000000/6408000/menu_attr_pair_NumberOfItems_1_1_847345067b.html"
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          "name": "Number_of_boxes",
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            {
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              "url": "/python/html6/menu_attr_pair/1000/50000000/50852000/menu_attr_pair_Numberofboxes_1_1_c27175cab9.html"
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          "name_url": "/python/html6/menu_attr_pair/1000/50000000/50852000/menu_attr_pair_Numberofboxes_1_1_c27175cab9.html"
        },
        {
          "name": "Number_of_items",
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            {
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              "url": "/python/html6/menu_attr_pair/1000/257000000/257380000/menu_attr_pair_Numberofitems_1_1_59f97e6de0.html"
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        },
        {
          "name": "PackageQuantity",
          "values": [
            {
              "value": "1",
              "url": "/python/html6/menu_attr_pair/1000/23000000/23398000/menu_attr_pair_PackageQuantity_1_1_27a474ef3f.html"
            }
          ],
          "name_url": "/python/html6/menu_attr_pair/1000/23000000/23398000/menu_attr_pair_PackageQuantity_1_1_27a474ef3f.html"
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        {
          "name": "PartNumber",
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              "value": "23958B",
              "url": "/python/html6/menu_attr_pair/1000/48000000/48046000/menu_attr_pair_PartNumber_23958B_1_2d3ff84c87.html"
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          ],
          "name_url": "/python/html6/menu_attr_pair/1000/48000000/48046000/menu_attr_pair_PartNumber_23958B_1_2d3ff84c87.html"
        },
        {
          "name": "Part_number",
          "values": [
            {
              "value": "23958B",
              "url": "/python/html6/menu_attr_pair/1000/178000000/178412000/menu_attr_pair_Partnumber_23958B_1_a14f95981d.html"
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          ],
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        {
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        },
        {
          "name": "ProductType",
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            },
            {
              "value": "POWERSPORTS_VEHICLE_PART",
              "url": "/python/html6/menu_attr_pair/1000/255000000/255014000/menu_attr_pair_ProductType_POWERSPORTSVEHICLEPART_1_83af16c65e.html"
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          ],
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        },
        {
          "name": "ProductTypeName",
          "values": [
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            },
            {
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              "url": "/python/html6/menu_attr_pair/1000/42000000/42236000/menu_attr_pair_ProductTypeName_POWERSPORTSVEHICLEPART_1_64b8f4e6ca.html"
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        },
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              "value": "Bore: 96.94mm<br>Compression: 12.5:1 Compression<br>Sizing: Standard Bore<br><br>All pistons are heat treated with a T-5 hardening and tempering cycle.<br> All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life.<br> Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston.<br> Forged pistons are forged from 2618 aluminum for superior strength and durability.<br> Forged High Compression pistons improve power and torque across entire rpm range.<br> Big Bore pistons increase engines displacement, torque, and peak horsepower.<br> Forged Replica pistons are forged OE replacements.<br> Replica pistons and all rings are OEM replacements.<br><br>This item fits the following vehicle applications:<br>compatible with Yamaha WR450F 2016-2018<br>compatible with Yamaha YZ450F 2014-2017<br>compatible with Yamaha YZ450FX 2016-2018<br>",
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        {
          "name": "Product_expiration_type",
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              "value": "Does Not Expire",
              "url": "/python/html6/menu_attr_pair/1000/145000000/145332000/menu_attr_pair_Productexpirationtype_DoesNotExpire_1_b7eeb322c9.html"
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          ],
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        },
        {
          "name": "Product_site_launch_date",
          "values": [
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        {
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            {
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              "url": "/python/html6/menu_attr_pair/1000/52000000/52320000/menu_attr_pair_Publisher_Vertex_1_d5d6d04f02.html"
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        {
          "name": "Registration_status",
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            },
            {
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        },
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            },
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            },
            {
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            },
            {
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        {
          "name": "TradeInEligible",
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            },
            {
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          ],
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        },
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          "name": "URL",
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              "url": "/python/html6/menu_attr_pair/1000/84000000/84268000/menu_attr_pair_Unit_centimeters_1_db2ee25dda.html"
            },
            {
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            },
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            },
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              "url": "/python/html6/menu_attr_pair/1000/254000000/254534000/menu_attr_pair_Warranty_1Year_1_cc2552fa57.html"
            },
            {
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