Pacific Performance Engineering 114052100 High-Capacity Cast Aluminum Oil Pan

The Pacific Performance Engineering 114052100 High-Capacity Cast Aluminum Oil Pan is designed to solve the critical shortcomings of the stock steel oil pan in 2011-2016 GM 6.6L Duramax engines. This premium upgrade addresses poor heat dissipation, incomplete oil drainage, and limited oil capacity that plague factory pans.

Key Features:

• Premium A356.0-T6 heat-treated cast aluminum alloy construction provides superior strength and thermal conductivity compared to stamped steel
• Flat-bottom design eliminates the valley found in stock pans, allowing complete drainage of old, contaminated oil during oil changes
• One quart additional oil capacity reduces operating temperatures, increases oil pressure, and improves lubrication to vital engine components
• Longitudinal cooling channels along the pan bottom increase external surface area for enhanced heat dissipation
• Unshrouded oil pickup design reduces restriction, resulting in higher oil pressure and better engine lubrication
• Cast-in gussets provide additional upper oil pan flange support and increased rigidity
• Precision-machined sealant grooves guide RTV application for a consistent bead and reliable seal
• Drilled and threaded 1/8-inch NPT port accepts optional temperature probes for monitoring
• Includes billet stainless steel drain plug with powerful neodymium magnet to capture ferrous metal particles
• Complete kit includes fasteners, pan, NPT plug, and magnetic drain plug—installer adds only oil and RTV sealant
• Cast aluminum construction reduces engine noise compared to steel pans
• Made in the USA with precision permanent steel mold casting for consistent finish and dimensional accuracy

This oil pan replaces GM part numbers 12669869, 12627247, 12638438, 12647331, and 12650979. Compatible with 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with 6.6L LML Duramax diesel engines. The raw aluminum finish can be left as-is or customized to match your engine bay aesthetics.