K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System - 77-3103KC
This wheel on real customer builds
See this part on video
Made by our team · tap a video to play it
📧 Get Fitment Help
Verify parts fit & get product recommendations
- UPC:
- 024844387240
- Availability:
- Regularly stocked product
- 2020-2021 GMC Sierra 2500 HDBase
- 2020-2021 GMC Sierra 3500 HDBase
- 2020-2021 Chevrolet Silverado 2500 HDCustom, High Country, LT, LTZ, WT
- 2020-2021 Chevrolet Silverado 3500 HDHigh Country, LT, LTZ, WT
- 2020-2021 GMC Sierra 2500 HDAT4, Denali, SLE, SLT
- 2020-2021 GMC Sierra 3500 HDAT4, Denali, SLE, SLT
- Part number
- KNN77-3103KC
- Manufacturer part number
- 77-3103KC
- UPC
- 024844387240
- Brand
- K&N Engineering
- Part type
- Engine Cold Air Intake Performance Kit
- CARB
- Not for sale or use in California (no CARB EO)
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Instructions
- Installation instructions (PDF)
- Filter type
- Oiled
- Material
- Aluminum
Installation guide (from K&N Engineering)
Hosted by K&N Engineering. Follow the maker's instructions and torque specs.
- Box size:
- 14.40 × 12.60 × 22.50 (in)
Complete the job
Read before you buy
- Will not void vehicle warranty.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2024 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2024 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2024 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2024 | Chevrolet | Silverado 2500 HD | WT |
| 2024 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2020-2024 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2024 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2024 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2024 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2024 | GMC | Sierra 2500 HD | AT4 |
| 2024 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2024 | GMC | Sierra 2500 HD | Denali |
| 2022-2024 | GMC | Sierra 2500 HD | Pro |
| 2020-2024 | GMC | Sierra 2500 HD | SLE |
| 2020-2024 | GMC | Sierra 2500 HD | SLT |
| 2020-2024 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2024 | GMC | Sierra 3500 HD | Denali |
| 2022-2024 | GMC | Sierra 3500 HD | Pro |
| 2020-2024 | GMC | Sierra 3500 HD | SLE |
| 2020-2024 | GMC | Sierra 3500 HD | SLT |
- LTL:
- N
- MPN:
- 77-3103KC
- Proposition 65:
- Y
- Special Order:
- N
- Clearance Item:
- N
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review
K&N Engineering
K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System - 77-3103KC
K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System - 77-3103KC FAQ
It is listed for: 2020-2021 GMC Sierra 2500 HD; 2020-2021 GMC Sierra 3500 HD; 2020-2021 Chevrolet Silverado 2500 HD and more (see the full list above). Pick your vehicle on this page to check your exact year and trim.
No — this part has no CARB Executive Order, so it is not for sale or use in California or on vehicles registered there.
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
Most intakes work with the stock tune. When an intake changes the sensor housing size, the maker says a tune is required.
Follow the maker's service interval. Dry filters are blown out or washed; oiled filters are washed and re-oiled with the maker's kit. Over-oiling can foul the airflow sensor.
Yes. Most intakes make the induction sound louder, especially at wide throttle.
Yes. An intake is usually a bolt-on job with hand tools; the maker's guide covers the clamps and the sensor move.
A full intake kit includes its filter; a replacement filter is sold on its own. See What's in the box above.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: cold air intake
Before you start
- Read the maker's guide for where the airflow sensor moves to.
- Have the clamps and hand tools the guide names within reach.
Do
- Seat every coupler fully and tighten the clamps evenly.
- Service the filter on the maker's interval and use the maker's cleaning kit.
Don't
- Don't over-oil an oiled filter; it fouls the airflow sensor.
- Don't run the engine with a coupler loose.
Price Match Guarantee
Free Shipping
IN STOCK (9 units)