{"product_id":"national-99374-engine-crankshaft-repair-sleeve","title":"National 99374 Engine Crankshaft Repair Sleeve - Front or Rear","description":"\u003ch2\u003eOverview of National Engine Crankshaft Repair Sleeve 99374\u003c\/h2\u003e\u003cp\u003eThe National 99374 Engine Crankshaft Repair Sleeve is designed for precise crankshaft repairs on a range of vehicles including Chevrolet, Ford, Toyota, Lexus, and more. Crafted from durable stainless steel, this repair sleeve ensures reliable performance and long-lasting durability in demanding engine applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlanged outside diameter: 4.031 inches (102.39 mm)\u003c\/li\u003e\n\u003cli\u003eInstallation depth: 1.750 inches (44.45 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width: 0.500 inches (12.7 mm)\u003c\/li\u003e\n\u003cli\u003eShaft size compatibility: 3.740 to 3.746 inches (95.00 to 95.15 mm)\u003c\/li\u003e\n\u003cli\u003eWidth on shaft: 0.344 inches (8.74 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: corrosion-resistant stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 99374 crankshaft repair sleeve is engineered to restore worn or damaged crankshaft journals to factory specifications. Its flanged outside diameter of 4.031 inches provides a secure fit, while the 1.750-inch installation depth ensures proper seating on the crankshaft. The sleeve accommodates shaft sizes ranging from 3.740 to 3.746 inches, making it suitable for precise repairs without the need for extensive machining. Constructed from stainless steel, this repair sleeve offers resistance to corrosion and wear, extending the service life of the crankshaft assembly.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis repair sleeve is compatible with a variety of makes and models, including Chevrolet 4Runner, Ford F-150, Toyota Land Cruiser, Lexus GS400, and Lincoln Navigator, among others. It is ideal for engine rebuilds and crankshaft repairs on vehicles such as the Ford E-350 Super Duty, Mazda CX-9, Mercury Sable, Pontiac Grand Prix, and Toyota Tundra. The part number 99374 ensures you receive the correct fitment for these specific applications.\u003c\/p\u003e\u003ch2\u003eCommon Uses and Repair Solutions\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores worn or scored crankshaft journals\u003c\/li\u003e\n\u003cli\u003eCorrects minor crankshaft damage without full replacement\u003c\/li\u003e\n\u003cli\u003ePrevents further engine wear by providing a smooth bearing surface\u003c\/li\u003e\n\u003cli\u003eSupports engine rebuilds on compatible Chevrolet, Ford, and Toyota models\u003c\/li\u003e\n\u003cli\u003eFacilitates cost-effective crankshaft repair in heavy-duty and passenger vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eProper installation of the National 99374 repair sleeve requires clean and precise preparation of the crankshaft journal. Ensure the shaft size falls within the specified range of 3.740 to 3.746 inches for optimal fit. Use appropriate tools to press the sleeve evenly to the installation depth of 1.750 inches. Verify the flange seating and overall width of 0.500 inches to confirm correct placement. Follow manufacturer torque specifications and lubrication guidelines during reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eManufactured by National, a trusted name in engine hardware, the 99374 crankshaft repair sleeve is made from high-grade stainless steel to meet industry standards. This part undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship, providing confidence in the durability and reliability of this repair sleeve.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448275566773,"sku":"BCZK-99374","price":60.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_99374_Ang_28d84e22-8b59-4f40-9197-58613ff85b82.jpg?v=1774734600","url":"https:\/\/www.partcatalog.com\/products\/national-99374-engine-crankshaft-repair-sleeve","provider":"PartCatalog","version":"1.0","type":"link"}