{"product_id":"dorman-m39791-brake-master-cylinder","title":"Dorman M39791 Brake Master Cylinder","description":"\u003ch2\u003eReliable Brake Master Cylinder for Nissan D21, Pathfinder, and Pickup\u003c\/h2\u003e\u003cp\u003eThe Dorman M39791 brake master cylinder is engineered to restore proper brake hydraulics for Nissan D21, Pathfinder, and Pickup models. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent braking performance.\u003c\/p\u003e\u003ch2\u003eKey Features of the Dorman M39791 Brake Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable aluminum for corrosion resistance and longevity\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated reservoir for brake fluid management\u003c\/li\u003e\n\u003cli\u003eEquipped with a sensor to monitor brake system status\u003c\/li\u003e\n\u003cli\u003eMaster cylinder bore diameter of 0.938 inches for accurate hydraulic pressure\u003c\/li\u003e\n\u003cli\u003eThree outlet ports with a rearward outlet size of M10 x 1.0 and secondary outlet thread diameter of 10 mm\u003c\/li\u003e\n\u003cli\u003eThread pitch of 1.0 for secure fitting\u003c\/li\u003e\n\u003cli\u003ePackage contains the master cylinder unit; mounting hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman M39791 brake master cylinder is specifically designed for Nissan D21, Pathfinder, and Pickup vehicles, providing a direct replacement for the original equipment. Its aluminum construction offers enhanced durability and resistance to wear, while the included reservoir simplifies brake fluid maintenance. The integrated sensor allows for real-time monitoring of brake system conditions, contributing to vehicle safety. With a bore diameter of 0.938 inches and three outlets, this master cylinder supports efficient brake fluid distribution. The precise thread pitch and outlet sizes ensure compatibility with the vehicle’s brake hydraulics system.\u003c\/p\u003e\u003ch2\u003eCommon Brake Issues Addressed by This Master Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pedal sinking or sponginess due to internal leaks\u003c\/li\u003e\n\u003cli\u003eLoss of hydraulic pressure affecting braking efficiency\u003c\/li\u003e\n\u003cli\u003eBrake fluid reservoir leaks or damage\u003c\/li\u003e\n\u003cli\u003eFaulty brake system sensor triggering warning lights\u003c\/li\u003e\n\u003cli\u003eCorrosion or wear in the original master cylinder impacting performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with Nissan D21, Pathfinder, or Pickup models before installation\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly after installation to remove air pockets\u003c\/li\u003e\n\u003cli\u003eUse appropriate brake fluid as specified by the vehicle manufacturer\u003c\/li\u003e\n\u003cli\u003eMounting hardware is not included; reuse existing hardware or acquire separately\u003c\/li\u003e\n\u003cli\u003eCheck sensor connections carefully to maintain brake system monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures the M39791 brake master cylinder to meet or exceed OEM standards for fit, form, and function. Each unit undergoes rigorous quality control to ensure reliability and safety. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43789350469813,"sku":"BKKX-M39791","price":96.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_M39791_Fro.jpg?v=1774997501","url":"https:\/\/www.partcatalog.com\/products\/dorman-m39791-brake-master-cylinder","provider":"PartCatalog","version":"1.0","type":"link"}