







S&B KF-1081 Intake Replacement Filter (2017-2019 6.6L Duramax)
Fits: Chevrolet • GMC
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the S&B KF-1081 Intake Replacement Filter (2017-2019 6.6L Duramax) you will earn 70 DIESEL DOLLARS in your SDS Fuel Tank!
The S&B KF-1081 is a cleanable replacement filter for the S&B cold air intake on 2017-2019 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L L5P Duramax. It pairs 8-ply cotton media with silicone construction that stands up to engine heat. You buy it to restore airflow and filtration without replacing the intake.
Fitment
Fits 2017-2019 Chevrolet Silverado 2500HD and 3500HD and GMC Sierra 2500HD and 3500HD with the 6.6L L5P Duramax, including 3500HD single- and dual-rear-wheel trucks. The L5P was an option on these trucks, so make sure yours has the diesel. This is a filter for an S&B intake; it does not replace the factory airbox filter.
S&B lists the KF-1081 for 2017-2019 trucks. GM changed the hood, scoop and airbox for the 2020 trucks, which makes L5P intake kits and airboxes year-specific. If you have a 2020 or newer L5P, verify fitment by VIN or call us before you order.
Why this part
S&B's L5P intake keeps the factory hood-scoop duct, so the water separator path in that duct stays in place. An intake that drops the duct loses it. When the filter in your S&B intake is worn or loaded up, the KF-1081 is the replacement that keeps that setup working as designed.
Heat is the other reason to pick this filter. Silicone construction means it will not break down from engine heat the way a regular rubber filter will. The full round entrance radius gives air a smooth transition into the filter and allows a larger filter with more surface area, which improves airflow and filtration. The 8-ply cotton media is cleanable, and the filter is ISO 5011 filtration tested.
What you get
- S&B KF-1081 replacement filter for an S&B intake
- Cleanable 8-ply cotton media
- Silicone construction
- Full round entrance radius
Two SKUs are listed on this page: KF-1081 and KF-1081D. S&B makes its KF replacement filters in cleanable and dry media, so match the variant to the filter type in your intake.
Specifications
Features:
- Silicone Construction
- Cleanable 8-Ply Filter
- ISO 5011 Filtration Testing
Manufacturer warranty: Million Mile Limited
About S&B
S&B Filters has been at it since 1975, building parts out of Fontana, California. The line includes cold air intakes, replacement filters, silicone body mounts, intercooler pipes and replacement fuel tanks, with most of it aimed at Duramax, Cummins and Power Stroke trucks. S&B part numbers match cleanly to a year, engine and cab, which is one reason we carry them.
Frequently asked questions
Does the KF-1081 fit a 2020 or newer L5P?
It is listed for 2017-2019 trucks. GM changed the hood, scoop and airbox for 2020, so intake parts do not automatically carry across. Verify fitment by VIN or call us before you order for a newer truck.
Why does silicone construction matter?
The filter lives in a hot engine bay. According to S&B, silicone construction means it will not break down from engine heat the way a regular rubber filter will.
Can I clean and reuse it?
Yes. The KF-1081 uses cleanable 8-ply cotton media. S&B also makes KF filters in dry media, so confirm which type your intake uses and pick the matching variant.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
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Finish the job
Parts our Wildwood techs pair with this one — take a look before you check out.

Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the S&B KF-1081 Intake Replacement Filter (2017-2019 6.6L Duramax) you will earn 70 DIESEL DOLLARS in your SDS Fuel Tank!


