{"product_id":"national-02420-differential-pinion-race","title":"National 02420 Differential Pinion Race - Front, Front Inner, Rear Inner or Rear Outer","description":"\u003ch2\u003eOverview of National 02420 Differential Pinion Race\u003c\/h2\u003e\u003cp\u003eThe National 02420 differential pinion race is a precision-engineered taper bearing cup designed for driveline and axle applications. This part is compatible with various Chevrolet, GMC, Isuzu, and Mercedes-Benz models, including the Chevrolet Blazer, GMC Jimmy, Isuzu Trooper, and Mercedes-Benz 190E series.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCup Bore Diameter: 2.6875 inches (68.263 mm)\u003c\/li\u003e\n\u003cli\u003eCup Length: 0.6875 inches (17.463 mm)\u003c\/li\u003e\n\u003cli\u003eCup Radius: 0.0620 inches (1.575 mm)\u003c\/li\u003e\n\u003cli\u003ePart Type: Taper bearing cup for differential pinion race\u003c\/li\u003e\n\u003cli\u003ePart Number: 02420\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThe National 02420 differential pinion race features a cup bore diameter of 2.6875 inches (68.263 mm), ensuring a precise fit within the differential assembly. The cup length measures 0.6875 inches (17.463 mm), providing adequate surface area for bearing support. The cup radius of 0.0620 inches (1.575 mm) is designed to accommodate the taper bearing geometry, promoting smooth rotation and load distribution. This part is manufactured to meet OEM standards for durability and dimensional accuracy.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis differential pinion race is compatible with a range of vehicles, including Chevrolet Blazer, GMC Jimmy, K10 and K20 Suburban, Isuzu Trooper, LUV, Pickup, and Mercedes-Benz 190E, 260E, 300E, and 300SL models. The part number 02420 is specifically suited for these models’ driveline and axle assemblies, ensuring proper fit and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 02420\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWear or damage to the existing differential pinion race causing noise or vibration\u003c\/li\u003e\n\u003cli\u003eImproper bearing fit leading to premature bearing failure\u003c\/li\u003e\n\u003cli\u003eExcessive play or looseness in the differential pinion assembly\u003c\/li\u003e\n\u003cli\u003eCorrosion or pitting on the bearing cup surface\u003c\/li\u003e\n\u003cli\u003eReplacement during axle or differential rebuilds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the differential housing is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to press the pinion race evenly into the bore to avoid distortion\u003c\/li\u003e\n\u003cli\u003eVerify the cup bore and length dimensions match the vehicle specifications\u003c\/li\u003e\n\u003cli\u003eApply appropriate lubrication to the bearing surfaces during assembly\u003c\/li\u003e\n\u003cli\u003eCheck for correct preload and bearing alignment after installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 02420 differential pinion race to meet strict quality standards, ensuring reliable performance in demanding driveline applications. While specific warranty details may vary, National parts typically come with a limited warranty covering defects in material and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448249745589,"sku":"BCZK-02420","price":23.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_02420_Ang_30380048-d254-4e3e-9ef9-04b2622018ea.jpg?v=1774734563","url":"https:\/\/www.partcatalog.com\/products\/national-02420-differential-pinion-race","provider":"PartCatalog","version":"1.0","type":"link"}