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Description
(8) L5P Duramax Fuel Injector 12678992 Chevrolet GMC Sierra 2500 HD 2017-2019Condition: USED REBUILDABLE CORE The ACDelco 12678992 Fuel Injector is an original equipment part designed specifically for 2017 present GM 6. 6L L5P Duramax engines. As an electro magnetic valve it meters fuel into the engines intake manifold or cylinders ensuring precise fuel delivery and optimal combustion. Recommended as a direct replacement for the original component. Engineered for durability and high performance this fuel injector helps
Condition: USED/REBUILDABLE COREThe ACDelco 12678992 Fuel Injector is an original equipment part designed specifically for 2017-present GM 6.6L L5P Duramax engines. As an electro-magnetic valve it meters fuel into the engines intake manifold or cylinders ensuring precise fuel delivery and optimal combustion. Recommended as a direct replacement for the original component. Engineered for durability and high performance this fuel injector helps maintain and enhance the efficiency of Chevrolet and GMC 25003500 trucks.
Part Number: 12678992
Manufacturer: GM
Weight: 10.0000 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.
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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
4.2 ★★★★★
Based on 1235 reviews
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Product Reviews
★★★★★ 4
Did its job
Got me back onto the water. The mounting holes distances from center to center are less than original equipment. But in a pinch they will do the job.
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Reviewed in the United States on May 29, 2024
★★★★★ 1
Missing the xomolete backside with bracket
Item had great reviews Came in and upon opening i noticed the whole backside was missing like it was never assembled properly and the missing part was not in bag Disappointed with whole thing Returned and ordered a oen Scared if this poorly made i dis not want kt leaving me on the water
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Reviewed in the United States on July 26, 2024
★★★★★ 5
Heavy-Duty 4 AWG Cable With Flexible Insulation
Size: 10ft, Color: 4awg
I am satisfied with this 4 AWG cable. The insulation coating is soft, and the cable itself is very pliable, making it easy to bend and route into the configuration needed for installation. Despite the flexibility, it still feels like a heavy-duty cable designed to handle demanding applications.
I am using this cable to provide the necessary amperage to start the generator on my trailer, and it performs as expected. I also like that the wire gauge and cable properties are clearly printed along the side of the insulation, making identification easy during installation or future maintenance.
The cable arrived in good condition with no obvious odor from the insulation or packaging. Overall, this appears to be a quality heavy-duty cable that is flexible, easy to work with, and suitable for high-current applications.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
True copper battery cables that are high quality
Size: 10ft, Color: 4awg
I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars.
These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads.
The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Easy to use
Style: 6-Speaker
This was a lifesaver. After buying a house, I discovered a huge mess of audio cables wired throughout the place, and this plate made it possible to finally get everything organized.
Quality is decent, not the best, but good for the value.
Super easy to use and connect even old wires to it from the back.
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Reviewed in the United States on December 31, 2025