{"product_id":"oversized-main-pressure-regulator-valve-kit","title":"Oversized Main Pressure Regulator Valve Kit","description":"\u003cdiv class=\"spaced-vertical\"\u003e\n\n\u003cp\u003eWear in the main pressure regulator bore and on the outboard spool area of the valve is common in listed GM and Ford 10-speed RWD transmissions. This wear minimizes line pressure control, resulting in delayed shift engagement, poor shift quality and burnt clutches.\u003c\/p\u003e\n\n\u003cp\u003eReconditioning the bore and installing Sonnax oversized main pressure regulator valve kit 105740-20K eliminates the leakage of line pressure signal oil to exhaust with the incorporation of an extended front valve spool. This valve spool is 270% longer than the OE spool, allowing for better sealing contact and a more stable operating valve. The O-ringed end plug provides a positive seal and prevents critical signal fluid from leaking to exhaust. Both of these Sonnax features ensure your units will have proper line pressure control through all drive ranges.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eExtended outboard spool is 270% longer than OE, allowing greater sealing ability and valve stability\u003c\/li\u003e\n\u003cli\u003eO-Ringed end plug provides positive seal to prevent critical signal fluid from leaking to exhaust\u003c\/li\u003e\n\u003cli\u003eHardcoat anodized aluminum valve combats premature wear\u003c\/li\u003e\n\u003cli\u003eAnnular grooves help center the valve in the bore to reduce future side-load wear\u003c\/li\u003e\n\u003cli\u003eIncluded are two new springs that restore OE pressure specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents:\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eO-Rings (2) \u003cem\u003e1 Extra\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eValve\u003c\/li\u003e\n\u003cli\u003eSpring \u003cem\u003eRed, Large Dia.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpring \u003cem\u003eSmall Dia.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnd Plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRequired Parts:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTool Kit Part No. \u003ca href=\"..\/i-30502828-f-tool-kit-part-no-f-105740-tl20.html\"\u003eF-105740-TL20\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow line pressure\u003c\/li\u003e\n\u003cli\u003eVarious shift concerns\u003c\/li\u003e\n\u003cli\u003eDelayed engagement\u003c\/li\u003e\n\u003cli\u003ePoor shift quality\u003c\/li\u003e\n\u003cli\u003eBurnt clutches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eCause:\u003c\/strong\u003e\u003c\/p\u003e\nContinuous oscillation of the pressure regulator valve causes valve body bore wear, allowing line pressure signal oil to cross-leak to the exhaust. This results in line pressure irregularities and valve instability.\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"col-4 last\"\u003e\n\u003cp\u003e\u003cstrong\u003eCorrection:\u003c\/strong\u003e\u003c\/p\u003e\nRecover hydraulic control and renew line pressure performance by reconditioning the bore and installing Sonnax oversized main pressure regulator valve kit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e \u003c!-- suncoast-documents:start --\u003e\u003cdiv class=\"suncoast-product-documents\"\u003e\n\u003ch3 class=\"h6\"\u003eDocuments\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/184287.pdf?v=1793634905\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\u003c!-- suncoast-documents:end --\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":49129551790299,"sku":"105740-20K","price":83.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198655026.jpg?v=1786546658","url":"https:\/\/suncoastperformance.com\/products\/oversized-main-pressure-regulator-valve-kit","provider":"SunCoast Diesel","version":"1.0","type":"link"}