{"product_id":"timken-hm89449-differential-pinion-bearing","title":"Timken HM89449 Differential Pinion Bearing - Front Inner, Rear Inner or Rear Outer","description":"\u003ch2\u003eOverview of Timken HM89449 Differential Pinion Bearing\u003c\/h2\u003e\u003cp\u003eThe Timken HM89449 differential pinion bearing is engineered for reliable driveline performance in a variety of vehicles including BMW, Chevrolet, Ford, and Mercedes-Benz models. Designed to meet precise specifications, this bearing supports smooth differential operation and helps maintain drivetrain integrity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter dimensions: 1.437 inches and 36.51 mm\u003c\/li\u003e\n\u003cli\u003eCone radius measurements: 0.138 inches and 3.50 mm\u003c\/li\u003e\n\u003cli\u003eOuter diameter approximately 1.125 inches (28.58 mm)\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes and models including BMW 325i, Chevrolet Camaro, Ford F150, and Mercedes-Benz 300E\u003c\/li\u003e\n\u003cli\u003ePart number HM89449 for accurate identification and fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Details\u003c\/h2\u003e\u003cp\u003eThis differential pinion bearing features an inside diameter of 1.437 inches (36.51 mm), ensuring a precise fit on the pinion shaft. The cone radius values of 0.138 inches (3.50 mm) contribute to proper seating and load distribution within the differential assembly. The outer diameter measures approximately 1.125 inches (28.58 mm), matching OEM requirements for a range of driveline applications. These dimensions are critical for maintaining correct gear alignment and minimizing wear under operational stresses.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe Timken HM89449 bearing is compatible with a broad selection of vehicles, including but not limited to BMW models such as the 325i, 328i, and 330i; Chevrolet models like the Camaro and Impala; Ford trucks including the F150 and F250; and Mercedes-Benz sedans such as the 300E and 300SE. This part is suitable for use in differential assemblies requiring precise bearing fitment to ensure smooth power transfer and drivetrain durability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces differential noise and vibration\u003c\/li\u003e\n\u003cli\u003ePrevents premature wear of pinion gears\u003c\/li\u003e\n\u003cli\u003eMaintains proper gear mesh alignment\u003c\/li\u003e\n\u003cli\u003eSupports load distribution in the differential\u003c\/li\u003e\n\u003cli\u003eHelps avoid driveline failure due to bearing fatigue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Timken HM89449 differential pinion bearing, ensure the bearing surfaces and housing are clean and free of debris. Proper lubrication is essential to prevent early wear. Use appropriate tools to press the bearing onto the pinion shaft without causing damage. Verify the bearing seating and preload according to the vehicle manufacturer’s specifications to maintain optimal differential performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eTimken bearings are manufactured to meet stringent quality standards, ensuring durability and consistent performance. The HM89449 differential pinion bearing undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Timken typically offers coverage against manufacturing defects, providing confidence in the product’s reliability for automotive driveline applications.\u003c\/p\u003e","brand":"Timken","offers":[{"title":"Default Title","offer_id":45124663935157,"sku":"BCPZ-HM89449","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TM_HM89449_Ang_65d46c4c-b88d-4792-acc4-dc4beee30b11.jpg?v=1775100091","url":"https:\/\/www.partcatalog.com\/products\/timken-hm89449-differential-pinion-bearing","provider":"PartCatalog","version":"1.0","type":"link"}