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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
Wehrli Custom Fab WCF100131-FB Aluminum Engine Oil Pan - Flat BlackPick up the Wehrli Custom Fab WCF100131 FB Aluminum Oil Pan Flat Black from GAP for your GM 6. 6L Duramax LB7 LLY LBZ LMM today. WCFab X PPE's Duramax High Capacity Cast Aluminum Engine Oil Pan replaces the poorly draining stock steel oil pan with this flat bottom high capacity oil pan. The stock pan has a valley in the design that sucks in nearly a quart of your dirtiest oil and immediately contaminates fresh oil after a fresh fill. This deep pan has
Pick up the Wehrli Custom Fab WCF100131-FB Aluminum Oil Pan - Flat Black from GAP for your GM 6.6L Duramax LB7/LLY/LBZ/LMM today. WCFab X PPE's Duramax High-Capacity Cast Aluminum Engine Oil Pan replaces the poorly draining stock steel oil pan with this flat bottom high-capacity oil pan. The stock pan has a valley in the design that sucks in nearly a quart of your dirtiest oil and immediately contaminates fresh oil after a fresh fill. This deep pan has been engineered with a flat bottom to ensure all oil is drained properly during a service.
The stock engine oil pan is made of stamped steel, which offers very poor heat dissipation. This upgraded pan is made from cast A356.0-T6 aluminum for added strength and optimum heat management. The extra quart of capacity provided by this product helps reduce oil temperatures, increase oil pressure, and provide better lubrication to your engine's vital components. Unshrouded oil pickup results in less restriction near the pump than OEM, resulting in higher oil pressure and better lubrication.
Includes:
Fasteners
Pan
NPT Plug
Billet Stainless Steel Neodymium Drain Plug
The stock engine oil pan is made of stamped steel, which offers very poor heat dissipation. This upgraded pan is made from cast A356.0-T6 aluminum for added strength and optimum heat management. The extra quart of capacity provided by this product helps reduce oil temperatures, increase oil pressure, and provide better lubrication to your engine's vital components. Unshrouded oil pickup results in less restriction near the pump than OEM, resulting in higher oil pressure and better lubrication.
Features:
- Enhanced Drainage Design
- High-Capacity Design
- Superior Material Construction
- Heat Management
- Reduced Contamination Risk
Includes:
Fasteners
Pan
NPT Plug
Billet Stainless Steel Neodymium Drain Plug
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Fits well and comfortable!
Size: Large, Color: Eggshell White Black Mariner Stripe, Size: Large, Color: Eggshell White Black Mariner Stripe
This shirt fits my husband very well, it is true to size. It is soft and stretchy enough to be comfortable. I bought this as part of a costume but my husband wears it around the house now because it's so comfy.
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Reviewed in the United States on December 24, 2025
★★★★★ 1
You get what you pay for
Size: XX-Large, Color: Eggshell White Black Mariner Stripe
Like most of the other reviews here, the shirt runs too small and too short. Material was also incredibly uncomfortable. It also wasn't the color I was hoping it would be, but that's on me for not reading the fine print (eggshell white was very much not white)
If you're looking at this for a certain costume/cosplay idea, it's probably not what you're looking for.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Solid fit
Size: X-Large, Color: Eggshell White Black Mariner Stripe
Easy fit, comfortable material. Dont expect it to last forever but at the price its solid for the purpose of a halloween costume.
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Reviewed in the United States on November 1, 2025
★★★★★ 3
Runs small
Size: X-Large, Color: Navy
Runs small and is short. Nice dark navy color. I ordered a size up and it is still small.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Great tee
Size: X-Large, Color: Medium Grey Heather
It’s a nice cotton material…not thin, just perfect. After washing, it also kept its shape.
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Reviewed in the United States on February 18, 2026