RETRUE Engine Air Filter｜AF27879 Freightliner Heavy Duty

AF27879 Direct Replacement Fit
The RETRUE AF27879 air filter is designed as a direct replacement for compatible Freightliner Cascadia air filter, diesel engine air filter, and heavy duty truck air filter applications, providing precise fitment and easy installation for commercial vehicles.

High-Efficiency Diesel Filtration Performance
This Freightliner air filter replacement captures dust, dirt, debris, and airborne contaminants to protect semi truck engines, diesel engines, and Class 8 trucks from intake pollution.

Optimized Airflow & Engine Performance
The advanced filtration design maintains steady airflow for improved combustion, fuel efficiency, and engine performance, making it ideal for Freightliner truck parts, commercial truck maintenance, and fleet air intake systems.

Heavy-Duty Long-Life Engine Protection
Built with durable filter media for demanding environments, this diesel air intake filter supports long service intervals while reducing engine wear in long haul trucks, heavy duty vehicles, and fleet operations.

Shipping:
We ship our products primarily through USPS/UPS. All items will be shipped within 72 business hours upon receipt of payment (except Saturday and Sunday). Orders placed on weekend will be shipped within 4 days.

Returns:
Items purchased from RETRUE may be returned in original unused condition within 30 days from the date of purchase for a refund, to the original form of payment. All returns must be pre-approved by RETRUE. Otherwise, unauthorized returns will not be accepted.

Q1: What vehicles is this air filter compatible with?
A: This filter is designed for Freightliner trucks that use AF27879 specifications.

Q2: Is this a direct replacement for AF27879?
A: Yes. It is designed to match AF27879 for proper fit and performance.

Q3: How often should I replace this air filter?
A: Replacement intervals depend on driving conditions, but regular inspection is recommended, especially in dusty environments.

Q4: Does this improve engine performance?
A: Yes. Clean airflow helps maintain efficient combustion and consistent engine performance.

Q5: Is this suitable for heavy-duty applications?
A: Yes. It is built for commercial trucking and long-haul use.