{"product_id":"inmotion-ws370023a-wheel-seal-rear-inner","title":"InMotion WS370023A Wheel Seal - Rear Inner","description":"\u003ch2\u003eWheel Seal for Differential Pinion Service\u003c\/h2\u003e\u003cp\u003eThe InMotion WS370023A wheel seal is built for differential pinion sealing applications where keeping lubricant in and contaminants out matters. Made from nitrile with an AISI 1070 seal case, it provides a precise sealing interface for driveline service on vehicles such as Ford F-150 and Chevrolet Silverado applications that use this style of seal.\u003c\/p\u003e\u003cp\u003eUse WS370023A when you need a replacement differential pinion seal that matches the housing and shaft dimensions specified for the application. The part number WS370023A is also marked externally as P370023A for identification during service.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNitrile sealing material for dependable fluid resistance\u003c\/li\u003e\n\u003cli\u003eAISI 1070 seal case material for structural support\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 5.70 in. \/ 144.8 mm\u003c\/li\u003e\n\u003cli\u003eHousing bore: 5.689 in. \/ 144.5 mm\u003c\/li\u003e\n\u003cli\u003eShaft diameter: 3.875 in. \/ 98.4 mm\u003c\/li\u003e\n\u003cli\u003eWidth: 0.880 in. \/ 22.3 mm\u003c\/li\u003e\n\u003cli\u003eExternal marking: P370023A\u003c\/li\u003e\n\u003cli\u003ePart number: WS370023A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eInMotion WS370023A is a differential pinion seal engineered to create a tight barrier at the pinion area, helping protect sensitive internal differential components from moisture, road debris, and lubricant loss. The nitrile sealing element is paired with a steel seal case to maintain shape and sealing consistency under driveline operating conditions. For buyers searching for a differential pinion seal for Ford F-150 or Chevrolet Silverado driveline repair, this part number WS370023A provides the dimensional details needed to verify application match before service.\u003c\/p\u003e\u003cp\u003eThis seal is suited to differential service where accurate housing bore, shaft diameter, and outside diameter measurements are critical. It is a practical choice for technicians replacing a leaking pinion seal during axle or differential maintenance.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDifferential pinion oil leaks\u003c\/li\u003e\n\u003cli\u003eContamination entering the pinion seal area\u003c\/li\u003e\n\u003cli\u003eLubricant loss from worn sealing surfaces\u003c\/li\u003e\n\u003cli\u003eNoise or wear concerns related to low differential fluid\u003c\/li\u003e\n\u003cli\u003eService replacement for a damaged or aged pinion seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify housing bore, shaft diameter, and seal width against the original part before installation. Clean the sealing surface and inspect the pinion area for wear, scoring, or contamination that could affect seal life. Proper alignment during installation is important to avoid distortion of the nitrile sealing lip. Confirm the application by matching WS370023A and the external marking P370023A to the removed component when possible.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eInMotion manufactures this seal with precision-focused construction and durable materials for differential service. No warranty information was provided in the product data.\u003c\/p\u003e","brand":"InMotion","offers":[{"title":"Default Title","offer_id":52406883483829,"sku":"HKKS-WS370023A","price":21.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WJ_WS370023A_Fro.jpg?v=1777773817","url":"https:\/\/www.partcatalog.com\/products\/inmotion-ws370023a-wheel-seal-rear-inner","provider":"PartCatalog","version":"1.0","type":"link"}