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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Chevrolet Express 6.0L OEM LH Exhaust Manifold W/ Heat Shield | 16 - 20 12686301Condition: NEW NEW TAKE OFF The GM 12686301 Left Exhaust Manifold is designed to ensure optimal exhaust gas flow by efficiently channeling exhaust away from the engine. This high quality component helps maintain proper engine performance and durability in a range of GM vehicles. Its precision engineering contributes to reduced emissions and improved fuel efficiency making it a vital part for maintaining engine integrity and performance. All parts
Condition: NEW / NEW TAKE OFFThe GM 12686301 Left Exhaust Manifold is designed to ensure optimal exhaust gas flow by efficiently channeling exhaust away from the engine. This high-quality component helps maintain proper engine performance and durability in a range of GM vehicles. Its precision engineering contributes to reduced emissions and improved fuel efficiency making it a vital part for maintaining engine integrity and performance.
Part Number: 12686301
Manufacturer: GM
Weight: 15.0000 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
- 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
4.3 ★★★★★
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Product Reviews
★★★★★ 4
A worthwhile addition to just butyl itself.
Model: 197mil 31 sqft Car Sound Deadening Mat
I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Good deadening
Model: 197mil 31 sqft Car Sound Deadening Mat
This sound deadening works well and has good adhesion .
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Easy to install and great value.
Model: 197mil 31 sqft Car Sound Deadening Mat
Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.
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Reviewed in the United States on April 2, 2026
★★★★★ 1
Garbage
Model: 197mil 31 sqft Car Sound Deadening Mat
Straight garbage, I tried to cut corners on cost of building an spl car and should have stuck with dynamat or something like that. This is NOT for sound deadening…… Garbage product!!!
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Reviewed in the United States on June 5, 2026
★★★★★ 3
Not for me
Model: 197mil 31 sqft Car Sound Deadening Mat
Seemed “cheap” for my personal needs, so I returned it.
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Reviewed in the United States on March 23, 2026