{"product_id":"national-221510-transfer-case-shift-shaft-seal","title":"National 221510 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Shift Shaft Seal 221510\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Shift Shaft Seal 221510 is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Geo, Lexus, and Toyota vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain proper fluid retention and prevents contamination in the transfer case assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.591 inch (15.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 0.994 inch (25.250 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.236 inch (6.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 0.984 inch (25.000 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 221510\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case shift shaft seal (part number 221510) is manufactured from polyacrylate, a material known for its resistance to heat, oil, and wear. The seal features an inside diameter of 0.591 inch (15 mm) and an outside diameter of 0.994 inch (25.25 mm), with a thickness of 0.236 inch (6 mm). These precise measurements ensure a secure fit within the transfer case housing bore of 0.984 inch (25 mm), providing an effective barrier against oil leaks and external contaminants.\u003c\/p\u003e\u003cp\u003eCompatible with a range of vehicles including Chevrolet Nova, Pickup, and Prizm; Geo Prizm and Paseo; Lexus GX460, GX470, and RX models; and Toyota 4Runner, Camry, Celica, Corolla, FJ Cruiser, MR2, Sequoia, T100, Tacoma, Tercel, and Tundra, this seal supports proper transfer case operation across multiple platforms.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case shift shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can cause premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains transfer case fluid integrity for smooth shifting\u003c\/li\u003e\n\u003cli\u003eAddresses seal degradation due to heat and friction\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs related to fluid loss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the shaft diameter matches the seal’s inside diameter (0.591 inch \/ 15 mm)\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eInspect the seal lip for damage prior to installation to ensure proper sealing\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for transfer case disassembly and reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational’s transfer case shift shaft seal 221510 is manufactured to meet industry standards for durability and performance. The polyacrylate material offers resistance to oil, heat, and wear, contributing to a longer service life. While specific warranty details may vary, National typically provides coverage against manufacturing defects to ensure customer confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448282120373,"sku":"BCZK-221510","price":16.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_221510_Fro.jpg?v=1774734606","url":"https:\/\/www.partcatalog.com\/products\/national-221510-transfer-case-shift-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}