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4V8 BMW 540i xDrive 2017–2020 3
Power Gain: Claims up to 5% horsepower increase by reducing heat soak
RC8) 2018–2022 2
OEM Compatibility: Replaces part number 857-721-401 A for a perfect fit
This gasket is engineered for easy installation and superior durability
Genuine VW/Audi Timing Chain Guide Rail 079 109 469 AA – OEM Replacement for VW & Audi Engines Washer Bottle Delete 4V8 BMW 540i xDrive 2017–2020This genuine VW Audi timing chain guide rail (part number 079 109 469 AA) is an OEM quality replacement designed to maintain proper timing chain tension and reduce wear. Made to exact factory specifications, it ensures a direct fit and long service life for various Volkswagen and Audi engines. Replacing a worn guide rail prevents timing chain failure and costly engine damage. Key Features & Benefits OEM Quality: Manufactured to Genuine VW Audi
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