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GM

GM Genuine Parts 12639087 Intake Manifold Assembly

    • Based on 100 reviews
Condition: New
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$150.61 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 6
Order within 7 hours and 21 minutes
Available payment plans shown during checkout

Features

  • Thermoplastic, aluminum, and cast iron intake manifolds available for a wide range of applications
  • Designs are enhanced and amended to incorporate updates, upgrades, and Technical Service Bulletins
  • GM-recommended replacement part for your GM vehicles original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Description

GM Genuine Parts Engine Intake Manifold are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).


Brand: GM


Material: Aluminum


Installation Type: Bolt-On


Manufacturer: ‎ACDelco


Brand: ‎GM


Item Weight: ‎15.63 pounds


Product Dimensions: ‎28.1 x 18.1 x 12.5 inches


Country of Origin: ‎USA


Item model number: ‎12639087


Manufacturer Part Number: ‎12639087


OEM Part Number: ‎12639087


Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.


Date First Available: January 8, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Klarna Pay in 4
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  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • 4.0 out of 5 stars Arrived fast
I’m using this for a l83 to l86 manifold and throttle body conversion on my 2017 Silverado LT Z71. Everything fit great and bolted up, there was an extra vacuum line port on the rear drivers side that I was not expecting and it caused lean codes but I put a cap on the port and everything runs fine now… can’t get an answer on the extra vent port wether it’s a newer updated model or I got sent the wrong part? ... show more
Reviewed in the United States on March 22, 2023 by Jon Jones
    • 5.0 out of 5 stars 5.3 to 6.2 intake swap
I needed this intake manifold to perform my 5.3 to 6.2 intake manifold swap on my 17 Silverado. When the intake came it was packaged very well in a box, the intake was also encased in a blow molded case. I inspected the manifold and there were no cracks or any damage. I installed this and the 6.2 throttle body on my truck and the engine ran perfect, no check engine light and no tuning was required. If you are purchasing this to do the 5.3 to 6.2 manifold swap you will also need to buy the 6.2 PCV hose because the pcv port on the 6.2 is located on a different spot than the 5.3. You can also use regular heater hose and fittings but I recommend spending the 20$ to get the factory hose for a much cleaner look. Fitment on everything was perfect. I highly Recommend this product. ... show more
Reviewed in the United States on March 8, 2020 by Robert Lewis Doane jr
    • 5.0 out of 5 stars Stop waiting around and get the L86 intake for your L83!
Review Image by Amazon customer Amazon customer
Review Image by Amazon customer Amazon customer
I done the L86 swap to my 2014 L83. Packaging was great. Install was easy, L86 bolted up with no problem. Purchased L86 throttle body and all new gaskets as well. Only issue was the intake manifold cover and those awful Christmas tree zip ties on the back side of the intake. No check engine lights after install. I have TSP headers and this mod was must! Improved throttle response and sound! Going to get a tune to really bring it to life. If your thinking of doing this swap do it you won’t regret it. ... show more
Reviewed in the United States on April 16, 2021 by Amazon customer Amazon customer
    • 5.0 out of 5 stars Great!!
This intake is an oem quality it works great as an upgrade if you have a gm truck with the 5.3 engine, installation took me about 2 hours. I would recommend this upgrade to anyone very pleased.
Reviewed in the United States on February 21, 2022 by carlos
    • 5.0 out of 5 stars Great buy for price, don't forget to order gaskets
Came package in a shell inside a box so great protection for shipping. No broke or missing items. I wish it came with the intake gaskets but I over looked that it didn't come with them. But great buy
Reviewed in the United States on March 17, 2021 by Kristin Grimes
    • 5.0 out of 5 stars Awsome swap from 5.3 to 6.2 intake manifold
Review Image by Amazon Customer Amazon Customer
Awsome swap from 5.3 to 6.2 intake manifold awsome awsome what a difference oh lord
Reviewed in the United States on June 30, 2021 by Amazon Customer Amazon Customer
    • 5.0 out of 5 stars Perfect fit
Review Image by Robert C Robert C
Review Image by Robert C Robert C
This is an OEM part. It came packaged extremely well just as OEM should.
Reviewed in the United States on February 21, 2021 by Robert C Robert C
    • 4.0 out of 5 stars L83 upgrade
Bought for upgrade on my LT 5.3 l83.used a ported katech throttle body.can feel more throttle response
Reviewed in the United States on December 18, 2019 by vj72ct

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