Sinister Diesel Oil Fill Cap 17-23 GM 6.6L Duramax | 11-23 Ford 6.7L Powerstroke
Upgrade the flimsy plastic oil fill cap in your 2017-2023 Duramax or 2011-2023 Ford Powerstroke with this stylish Billet Oil Fill Cap from Sinister Diesel. This cap is not only better looking than the factory but is a durable option to keep dirt and moisture out of your engine. This cap is constructed of CNC machined solid billet aluminum featuring signature Sinister Blue anodized coating and is laser etched with the Sinister Diesel logo.
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Shipping & Returns

Sinister Diesel Oil Fill Cap 17-23 GM 6.6L Duramax | 11-23 Ford 6.7L Powerstroke
Sinister Diesel Oil Fill Cap 17-23 GM 6.6L Duramax | 11-23 Ford 6.7L Powerstroke
Upgrade the flimsy plastic oil fill cap in your 2017-2023 Duramax or 2011-2023 Ford Powerstroke with this stylish Billet Oil Fill Cap from Sinister Diesel. This cap is not only better looking than the factory but is a durable option to keep dirt and moisture out of your engine. This cap is constructed of CNC machined solid billet aluminum featuring signature Sinister Blue anodized coating and is laser etched with the Sinister Diesel logo.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Upgrade the flimsy plastic oil fill cap in your 2017-2023 Duramax or 2011-2023 Ford Powerstroke with this stylish Billet Oil Fill Cap from Sinister Diesel. This cap is not only better looking than the factory but is a durable option to keep dirt and moisture out of your engine. This cap is constructed of CNC machined solid billet aluminum featuring signature Sinister Blue anodized coating and is laser etched with the Sinister Diesel logo.























