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OEM Fuel Injection Throttle Body Assembly for 2018-2022 Cadillac, Chevrolet, & GMC

Out of Stock
$ 146 .95

Product Notes

This is a used part. It fits vehicles with the 6.6L turbo diesel engine.
Condition: Excellent (A)
Like new, minimal to no wear
47,100 miles
Odometer reading when part was removed

1 Other Matching Unit Available

Same part, different stock options.

Why Buy Used OEM Parts?

  • ✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested. While it may show some cosmetic wear, it's fully functional and ready to install.
  • ✓ Original Equipment: This is a genuine OEM part — the exact part that came with your vehicle from the factory. Perfect fitment and performance.
  • ✓ Works Like New: Despite visual wear, internal components and functionality are intact. Same reliability you'd expect from OEM quality.
  • ✓ Significant Savings: Save 50–80% vs. new. Factory quality at a fraction of the cost — the smart choice for budget-conscious owners.
30-dayreturns 6-monthwarranty 100%money-back
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Vehicle Fitment Guide

This part fits the following vehicles:

Cadillac 2 models(tapclick to expand)(tapclick to hide)
Escalade 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Luxury SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premium Luxury SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premium Luxury Platinum SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Sport SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Sport Platinum SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
2019
Escalade ESV 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Luxury SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premium Luxury SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premium Luxury Platinum SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Sport SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Sport Platinum SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
2019
Chevrolet 5 models(tapclick to expand)(tapclick to hide)
Silverado 1500 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
High Country Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LT Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LT Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LTZ Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LTZ Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
RST Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
RST Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Silverado 2500 2020 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2020
Silverado 3500 2020 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2020
Suburban 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
High Country SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LS SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LT SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premier SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
RST SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Tahoe 2021-2022 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
High Country SUV 2021 - 2022 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LS SUV 2021 - 2022 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
LT SUV 2021 - 2022 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Premier SUV 2021 - 2022 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
RST SUV 2021 - 2022 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
GMC 5 models(tapclick to expand)(tapclick to hide)
Sierra 1500 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo 4WD | Automatic
AT4 Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo 4WD | Automatic
Denali Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Elevation Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Elevation Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLE Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLE Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLT Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLT Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Sierra 2500 HD 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo 4WD | Automatic
Base Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Base Extended Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Base Standard Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Denali Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo 4WD | Automatic
SLE Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLE Extended Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLE Standard Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLT Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLT Extended Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Sierra 3500 HD 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
AT4 Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo 4WD | Automatic
Base Cab & Chassis 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Base Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Base Extended Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Base Standard Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Denali Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo 4WD | Automatic
SLE Cab & Chassis 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLE Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLE Extended Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLE Standard Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
SLT Crew Cab Pickup 2020 - 2021 V8 6.6L DIESEL Turbo RWD/4WD | Automatic
Yukon 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Denali SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLE SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLT SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Yukon XL 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Denali SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLE SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
SLT SUV 2021 L6 3.0L DIESEL Turbo RWD/4WD | Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Go-Parts Garage · Featured Guide

2020-2025 Silverado, Sierra, Tahoe & More Throttle Body: 'Reduced Engine Power' Fix

This guide explains the common causes of throttle body failure, including the dreaded 'Reduced Engine Power' message, and how to diagnose, replace, and recalibrate the part.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

20 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.

Miscellaneous Information

OEM Part Numbers:
Other: 12678312

Fits Years: 2018 2019 2020 2021 2022

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19
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Trusted Since 2007

Nearly two decades of shipping parts to professionals & enthusiasts.

6MO
Warranty

Backed For The Long Haul

This part ships with a 6-month warranty. If it doesn't fit or stops working, we replace or refund — no hassle.

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