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Description
Intake Manifold GM 8.1L w EGR Provision Silverado Sierra 2500 3500 12574559 OEMCondition: NEW NEW TAKE OFF The GM 12574559 Intake Manifold is designed for 8. 1L (496 cubic inch) engines primarily used in Silverado and Sierra 2500 and 3500 models from 2001 to 2006 including the 2007 classic style. This manifold includes provisions for EGR ensuring compliance with emission standards while optimizing airflow to improve engine performance and efficiency. Made as a genuine OEM part its known for its reliability and compatibility with
Condition: NEW / NEW TAKE OFFThe GM 12574559 Intake Manifold is designed for 8.1L (496 cubic inch) engines primarily used in Silverado and Sierra 2500 and 3500 models from 2001 to 2006 including the 2007 classic style. This manifold includes provisions for EGR ensuring compliance with emission standards while optimizing airflow to improve engine performance and efficiency. Made as a genuine OEM part its known for its reliability and compatibility with Chevrolet GM GMC and even some marine applications like MerCruiser and Volvo Penta.
Part Number: 12574559
Manufacturer: GM
Weight: 43.0000 lbs
Additional Details:
Genuine OEM Parts
Please research/ensure fitment of part to your specific vehicle before purchasing. Returns because of non-fitment are accepted with a re-stocking fee, however customer is responsible for return shipping.
Shipping:
If shipping outside the contiguous 48 states is required, reach out to [email protected] to confirm shipping details.
About Us:
Custard Core Supply provides the highest quality of new, new take off, used, and core parts. We provide a variety of gas and diesel parts to our customers. Based in Dallas, TX Custard Core Supply has been in business since 1998. If you do not see a product you are looking for on our page, please reach out!
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
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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
4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Very nice shirts
Size: Large, Color: White
These are a heavier fabric than I was expecting but that’s fine since it’s winter.
They barely shrink being washed in hot water and dried in a hot dryer. I was actually hoping that they would shrink a little more after losing 40 pounds. But they shrunk just a little and they fit just fine.
Also, if you take them out of the dryer immediately there are very few wrinkles.
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Reviewed in the United States on February 23, 2026
★★★★★ 3
Dress shirt
Size: XX-Large Big Tall, Color: Powder Blue
The material is a nice quality and the color is very close to the picture but I think it’s a bit darker in person. It definitely doesn’t fit like a “tall” should though but I think if we would have sized up it would have been to big. Overall it was an ok purchase for what we needed it for but it is a bit short.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Fit check = great
Size: X-Large, Color: Light Grey Vertical Stripe
Happy to finally find a great shirt fit for both business and casual looks. This shirt line is made in Sri Lanka (not Bangladesh). It has a great fit around the shoulders and chest for a 40 year old American male. It fits true to form and was recommended to me directly by Grok AI based on my exact waist, chest and neck measurements. It doesn't pull tight across the chest, and fits really nice with a sport coat. It's comfortable and breathable, the fabric is thick and high quality. You can wear this tucked or untucked depending on the attire you need. I bought 2 and will definitely buy the rest of the color line up. I'd love to see more colors and patterns available in this fit.
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Reviewed in the United States on February 28, 2025
★★★★★ 5
nice fit
I am thoroughly impressed with this Amazon Essentials white shirt. For the price, the quality is outstanding. The fabric feels soft, breathable, and has a good weight to it
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Reviewed in the United States on June 12, 2026
★★★★★ 5
Nice shirt, great price.
Fit Type: Regular Fit, Color: White, Size: Medium
Worn it twice and I find it very comfortable. I wear it outside and casually to protect my arms and neck from the sun and find it more comfortable than a long sleeve t-shirt. The price is comparable. If I was to wear it to the office it would have to be ironed. I bought one shirt to try it and I will be buying more.
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Reviewed in the United States on May 8, 2026