Hot Shot's Secret Diesel Extreme®- 16 oz Bottle BOLD_HIDDEN_PRODUCT Find replacement filters here

Find replacement filters here

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*** Shipping January 2026

7L Powerstroke Head Studs

this short block offers an ideal combination of factory compatibility and aftermarket performance

Hot Shot's Secret Diesel Extreme®- 16 oz Bottle BOLD_HIDDEN_PRODUCT Find replacement filters hereHot Shot's Secret Diesel Extreme 16 oz Bottle Diesel Extreme is a concentrated fuel system cleaner designed to restore performance and efficiency in your diesel engine. It removes internal injector deposits, cleans the entire fuel system, and improves combustion for smoother operation and better throttle response. This formula also boosts cetane, lubricates the upper cylinder, and neutralizes acids caused by fuel oxidation. The result is improved