{"product_id":"cloyes-c946-engine-oil-pump-chain","title":"Cloyes C946 Engine Oil Pump Chain","description":"\u003ch2\u003eEngine Oil Pump Chain for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThis Cloyes engine oil pump chain is built for Mercedes-Benz applications that rely on precise oil pump drive timing. It is a direct-fit replacement for select Mercedes-Benz models and is engineered for quiet operation, durability, and OE-level performance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePremium-material chain construction for consistent strength and wear resistance.\u003c\/li\u003e\n\u003cli\u003eHeat-treated and pre-stressed for stable operation under engine load.\u003c\/li\u003e\n\u003cli\u003eEngineered for accurate chain-to-sprocket tooth engagement.\u003c\/li\u003e\n\u003cli\u003eSupports oil pump drive function in timing-related service applications.\u003c\/li\u003e\n\u003cli\u003eAvailable as a stand-alone chain for targeted repair work.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eCloyes has supplied automotive timing components since 1921, and this engine oil pump chain reflects that focus on precision drivetrain service parts. In many Mercedes-Benz engines, the oil pump chain works alongside the timing system, so correct chain fit and tooth engagement matter during repair. Part number C946 is used across a wide range of Mercedes-Benz models, including C43 AMG, E450, GLE350, and S550 applications, making it a relevant choice for technicians servicing timing-related oil pump drive concerns. This part cross-references Mercedes-Benz OE numbers 0009935576 and 000993557664 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Issues It Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive chain noise from the oil pump drive.\u003c\/li\u003e\n\u003cli\u003eWear-related loss of chain-to-sprocket engagement.\u003c\/li\u003e\n\u003cli\u003eTiming-system service that includes the oil pump drive chain.\u003c\/li\u003e\n\u003cli\u003eReplacement of a stretched or fatigued oil pump chain.\u003c\/li\u003e\n\u003cli\u003eRestoration of proper oil pump drive operation during engine repair.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify engine code and VIN-specific fitment before ordering, since this part number applies to multiple Mercedes-Benz platforms from 2012-2022. For timing-system integrity, Cloyes recommends replacing the chain together with related tensioners, guides, and sprockets during service. Confirm that the application matches the listed engine oil pump chain position and notes for your vehicle.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eCloyes is a long-established timing systems brand, and this chain is manufactured from premium materials with heat treatment and pre-stressing for OE-level performance. Part number C946 is backed by Cloyes technical support and an industry-leading warranty.\u003c\/p\u003e","brand":"Cloyes","offers":[{"title":"Default Title","offer_id":53556031946933,"sku":"BBKX-C946","price":24.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CT_C946_FRO.jpg?v=1792391347","url":"https:\/\/www.partcatalog.com\/products\/cloyes-c946-engine-oil-pump-chain","provider":"PartCatalog","version":"1.0","type":"link"}