Clean up the engine bay of your 2001-2025 Chevy Silverado or GMC Sierra 2500 / 3500 6.6L truck equipped with the 6.6L Duramax with this Billet Aluminum Black Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement for the factory plastic part. Includes o-ring seal and machined cam lock engagement. CNC machined in the USA. - - Direct replacement for the following GM OEM model numbers: 97350955, 97216410, 12573341, 12677347 - - Also compatible with 2.8L LWN Duramax and the following GM LS gasoline engines: - - LSX - 4.8L V8 - LR4, LY2, L20 - 5.3L V8 - LC9, LH6, LH8, LH9, LMF, LM4, LM7, LY5, LMG, LS4, L33, L59 - 5.7L V8 - LS1, LS6 - 6.0L V8 - LQ4, LQ9, LS2, L76, L98, L77, LY6, L96, LFA, LZ1 - 6.2L V8 - LS3, LS9, LSA, L92, L99 - 7.0L V8 - LS7

• Black Anodized Finish
• CNC Machined Billet Cap is a direct OEM Replacement not a cover.
• Engraved Wehrli Custom logo on bottom of part
• Includes o-ring seal
• Installs in seconds
• Machined cam lock
• Made in USA
• Matches WCFab Billet Aluminum Coolant Tank and Brake Reservoir Caps