Cold Air Intake with Pre-Filter for 6.6L 2500/3500 HD (2017-2019)
- 6.6L cold air intake plus outer pre-filter in one part number
- Fits 2017-2019 Silverado and Sierra 2500 HD/3500 HD, 4WD and RWD
- GMC coverage includes Denali; Chevrolet runs WT through High Country
- Downloadable installation guide available
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Will it fit your truck?
✓ Fits
Not for sale in California or other states adopting carb regulations. Fitment on this page is based on the manufacturer’s application data.
About this kit
Cold Air Intake with Pre-Filter, fitment-checked
Rough Country 10478PF is the 6.6L intake for 2017-2019 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD, bundled with an outer pre-filter. GMC coverage here includes Denali alongside Base, SLE, and SLT; Chevrolet runs WT through High Country. Not sold in California or in other states that follow CARB emissions rules.
Bundled version of the 6.6L HD intake, sold with a pre-filter in the same box. The intake fits 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD, 4WD or RWD, with GMC coverage extending to Denali as well as Base, SLE, and SLT. The washable filter mounts on a larger tube where the factory airbox sat; the pre-filter wraps over it by hand. Follow the downloadable installation guide for the intake side. Shipping weight: 11.25 lb, and the part is not sold in California or other CARB-regulation states.
What’s in the box
Kit contents
- 1× Intake Pre-Filter 10481
- 1× Cold Air Intake 10478
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 10478PF kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 10478PF |
| UPC / GTIN | 00843030198886 |
| Shipping weight | 11.25 lb |
| Country of origin | CN |
| Category | Performance › Cold Air Intakes |
| Installation guide | Downloadable PDF |
Why buy here