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Description
GM Throttle Body 12678312 OEM 4.8L 5.3L 6.0L 6.2L W/ Mounting HardwareCondition: NEW NEW TAKE OFF The GM Genuine Parts throttle body part number 12678312 is engineered to precise GM standards for optimal engine air control. Designed for fuel injection systems this throttle body plays a vital role in regulating air intake ensuring excellent performance and efficiency across numerous GM vehicle applications such as Sierra Suburban Silverado Tahoe and Yukon. Its precision and reliability are confirmed by multiple sources
Condition: NEW / NEW TAKE OFFThe GM Genuine Parts throttle body part number 12678312 is engineered to precise GM standards for optimal engine air control. Designed for fuel injection systems this throttle body plays a vital role in regulating air intake ensuring excellent performance and efficiency across numerous GM vehicle applications such as Sierra Suburban Silverado Tahoe and Yukon. Its precision and reliability are confirmed by multiple sources making it an essential component for maintaining smooth engine function.
Fitment information provided with best effort, customer is ultimately responsible for fitment
Hollander Number 337-10048
| Application | Year(s) | Engine / Notes |
|---|---|---|
| ESCALADE | 18-19 | (throttle valve assembly) |
| ESCALADE | 21 | 6.2L ID 12678312 |
| ESCALADE ESV | 18-19 | (throttle valve assembly) |
| ESCALADE ESV | 21 | (throttle valve assembly) 6.2L ID 12678312 |
| SIERRA 1500 PICKUP | 19 | style (mirrors mount on door skin) 6.2L ID 12678312 |
| SIERRA 1500 PICKUP | 20-21 | 6.2L ID 12678312 |
| SIERRA 2500 PICKUP | 20 | diesel |
| SIERRA 2500 PICKUP | 21 | (throttle valve assembly) diesel |
| SIERRA 3500 PICKUP | 20-21 | (throttle valve assembly) diesel |
| SIERRA DENALI 1500 | 19-21 | (throttle valve assembly) 6.2L ID 12678312 |
| SIERRA DENALI 2500 | 20 | diesel |
| SIERRA DENALI 2500 | 21 | (throttle valve assembly) diesel |
| SIERRA DENALI 3500 | 20-21 | (throttle valve assembly) diesel |
| SILVERADO 1500 PICKUP | 19 | style (mirrors mount on door skin) 6.2L ID 12678312 |
| SILVERADO 1500 PICKUP | 20-21 | 6.2L ID 12678312 |
| SILVERADO 2500 PICKUP | 20 | (throttle valve assembly 6.6L) diesel |
| SILVERADO 3500 PICKUP | 20 | (throttle valve assembly 6.6L) diesel |
| SUBURBAN 1500 | 21 | 6.2L ID 12678312 |
| TAHOE | 21-22 | 6.2L ID 12678312 |
| YUKON | 21 | 6.2L ID 12678312 |
| YUKON XL 1500 | 21 | 6.2L ID 12678312 |
Part Number: 12678312
Manufacturer: GM
Weight: 3.0000 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
4.6 ★★★★★
Based on 1702 reviews
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Product Reviews
★★★★★ 5
Repurchase Product
I love this tallow salve! I just ordered my fourth jar. I always order a new jar once I open a new one. The vanilla scent is nice and not overbearing and doesn’t have that fake vanilla scent. I use it mostly on my face after I apply cream. I will use it on my elbows, knees and ankles when needed or when I have an eczema flareup. But it definitely does not disappoint.
I have purchased a more expensive brand just to compare and I definitely prefer Natrulo and will continues to purchase. Love that it is a glass jar so I can repurpose it when I’m finished.
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Reviewed in the United States on November 8, 2025
★★★★★ 5
Buy it, while you can! 100% a need.
Let me tell you! That right there! 100% buy it. I love the feeling, the smell and I will buy again and again. Skin fresh. Glowing. Money value worth every swipe of the card. My skin has been fixed and the impurities gone. Starts working instantly. Put on after washing your skin.
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Reviewed in the United States on June 5, 2025
★★★★★ 5
Love this cream!!!
I've been using this for a couple months now and love it! I just purchased my second jar in the vanilla scent, which I prefer over the lavender. I use it on my face every night and have noticed my skin is more balanced and even, less red, and smoother. It is thick, so you only need a little bit, but it works amazingly! I tried another brand that was "whipped" and more expensive, (thinking it would be better) but it was like a watered down lotion. I will be sticking with this product!
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Reviewed in the United States on May 14, 2025
★★★★★ 5
Pleasant lavender smell, great moisturizing
I used this balm on flaky patches on my skin, it cleared it up within a few days. It has a pleasant lavender smell, not overpowering.
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Reviewed in the United States on February 20, 2026
★★★★★ 4
Great on body not my face!
I use it everywhere else besides my face because when I put it on my face even if it's just a little it causes acne and I do not get acne. Great on feet and elbows and knees or any tattoos you may have. Smells fine to me and it's not whipped so it is solid a true self kind of hard you have to work it into your fingers and melt it with the warmth of your hands.
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Reviewed in the United States on July 19, 2025
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