Toobop Air Filter 394019S with Pre Filter 272490S Replacement for Briggs & Stratton 12.5-20 HP L-Head Engines

Overview

Toobop offers a practical air filter kit designed to replace Briggs & Stratton 394019S with its companion pre-filter 272490S. This duo targets Briggs & Stratton 12.5-20 HP L-Head twin vertical engines, including popular models such as 400700, 422700, 40A700, 42A700, and 460700. The main air filter uses a high‑efficiency pleated design that aims to balance filtration with steady airflow, supporting reliable engine breathing during extended mowing sessions.

Filtration design and benefits

The pleated media increases surface area to trap dust and debris without overly constraining airflow. The foam pre-filter adds a first line of defense by catching larger particles, reducing the load on the main element and potentially extending its life. A durable polyurethane seal helps ensure a tight, dependable fit that stays in place under typical outdoor use.

Compatibility and fit

• Replaces Briggs & Stratton parts: 394019, 394019S, 398825, 4136, 5052H, 5052K; pre-filter replaced by 272490S.
• Designed for 12.5-20 HP L-Head twin vertical engines, covering models such as 400700, 422700, 40A700, 42A700, 460700.
• Includes high‑efficiency pleated filter media that maintains airflow while filtering dust and dirt.
• Foam pre-filter traps larger particles, helping reduce wear on the main element and potentially extending life.
• Durable polyurethane seal ensures a reliable, tight seal during operation.

Product details and usage

Dimensions: 9-5/8 inches long, 4 inches wide, 2-1/2 inches tall. This kit is suitable for lawn mowers, garden tractors, and other outdoor power equipment powered by compatible Briggs & Stratton engines. To install, remove the old unit, align the new filter with the housing, and replace the pre-filter as needed to maintain filtration efficiency.

Maintenance and use scenarios

Regular replacement can help maintain engine efficiency, sustain power output, and potentially extend equipment lifespan by ensuring clean intake air. These replacements are particularly useful during dusty mowing days, muddy spring conditions, or long maintenance cycles for outdoor tools.

What you may notice

Expect steadier engine breathing, consistent performance during tasks, and less debris reaching the combustion chamber when the filter is clean. This kit provides a practical option for keeping outdoor equipment running smoothly.

Additional benefits

• Designed for straightforward installation with a secure seal.
• Offers a complete replacement pairing for the main filter and pre-filter.
• Supports regular maintenance routines for Briggs & Stratton engines.