K&N Engineering E-0644 Foam Insert Block for DSL Air Filter

This is an optional foam piece which replaces the OEM foam block. For DSL model only FOAM INSERT BLOCK; DSL ONLY; E-0644

• Pre-cut foam insert that is ready to install
• Pre-Cut And Ready To Install

The K&N Engineering E-0644 Foam Insert Block is an optional replacement foam piece designed for select DSL air filter applications. It replaces the original equipment manufacturer (OEM) foam block and helps maintain the intended filter configuration for compatible systems.

This pre-cut foam insert is ready to install, making replacement straightforward without requiring custom trimming or fabrication. The K&N Engineering E-0644 is intended for DSL models only and is designed as a direct-fit service component for the applicable air filter assembly. Verify the existing filter and application before ordering.

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: E-0644
• Product Type: Air filter foam insert block
• Application: DSL models only
• Installation: Pre-cut and ready to install
• Replacement Use: Replaces the OEM foam block
• Vehicle Type: Automotive
• Fitment: 2017 Ford F-250 Super Duty and 2017 Ford F-350 Super Duty applications, where equipped with the compatible DSL air filter

What's Included in the Box

• One K&N Engineering E-0644 foam insert block

Fitment

This foam insert block fits select 2017 Ford F-250 Super Duty and 2017 Ford F-350 Super Duty models. It is for DSL model applications only. Confirm vehicle configuration and air filter compatibility before installation.

Important Notice: This product is not CARB approved and may not be legal for sale or use in all locations. Check applicable emissions regulations before purchase or installation. California Proposition 65 warning applies.

Features:

• Pre-cut foam insert is ready to install without trimming
• Replaces the OEM foam block in compatible air filter assemblies
• Designed specifically for DSL model applications
• Helps maintain proper air filter fit and configuration

Fitments:
2017 Ford F-250 Super Duty King Ranch
2017 Ford F-250 Super Duty Lariat
2017 Ford F-250 Super Duty Platinum
2017 Ford F-250 Super Duty XL
2017 Ford F-250 Super Duty XLT
2017 Ford F-350 Super Duty King Ranch
2017 Ford F-350 Super Duty Lariat
2017 Ford F-350 Super Duty Platinum
2017 Ford F-350 Super Duty XL
2017 Ford F-350 Super Duty XLT
2018 Ford F-250 Super Duty King Ranch
2018 Ford F-250 Super Duty Lariat
2018 Ford F-250 Super Duty Limited
2018 Ford F-250 Super Duty Platinum
2018 Ford F-250 Super Duty XL
2018 Ford F-250 Super Duty XLT
2018 Ford F-350 Super Duty King Ranch
2018 Ford F-350 Super Duty Lariat
2018 Ford F-350 Super Duty Limited
2018 Ford F-350 Super Duty Platinum
2018 Ford F-350 Super Duty XL
2018 Ford F-350 Super Duty XLT
2019 Ford F-250 Super Duty King Ranch
2019 Ford F-250 Super Duty Lariat
2019 Ford F-250 Super Duty Limited
2019 Ford F-250 Super Duty Platinum
2019 Ford F-250 Super Duty XL
2019 Ford F-250 Super Duty XLT
2019 Ford F-350 Super Duty King Ranch
2019 Ford F-350 Super Duty Lariat
2019 Ford F-350 Super Duty Limited
2019 Ford F-350 Super Duty Platinum
2019 Ford F-350 Super Duty XL
2019 Ford F-350 Super Duty XLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1