BOLEWIN Air Filter Kit P822858+P821575 — Inner & Outer Filters for Kubota L-Series, Direct-Fit Two-Piece

BOLEWIN P822858 + P821575 is a two-piece aftermarket inner and outer air filter kit engineered to replace Donaldson units and fit select Kubota tractors and Kawasaki engines.

This BOLEWIN air filter set combines an inner and outer element designed to block dirt while preserving airflow for reliable engine performance. Built as a direct-fit replacement for part numbers P821575 and P822858, the kit matches form and function for tractors in the Kubota L-series and many small industrial Kawasaki engines. The description below explains how the kit works, which machines it fits, and what to expect during installation and maintenance.

What tractors and engines will this filter set fit?

The BOLEWIN kit is compatible with a wide range of Kubota L-series tractors and several Kawasaki engine models. Confirm model and part number before purchase to ensure fitment. This set replaces common OEM numbers and is intended as a one-to-one substitute for the listed machines.

• Kubota models: L2501, L2800, L2900, L3130, L3200, L3240, L3300, L3400, L3540, L3560, L3600, L3700, L3710, L3800, L3910, L3940, L4200, L4240, L4600, L4610
• Kawasaki compatible engines: FD731V, FH721D, FX651V, FX691V, FX730V, FX751V, FX801V, FX850V, FX921V, FXT00V
• Replaces Kawasaki OEM numbers: 11013-7020, 11013-7044, 11013-7045

How does this air filter kit protect my engine?

These filters trap dust, pollen and abrasive particles before they reach sensitive engine parts, reducing wear and maintaining combustion efficiency. The two-stage design uses a larger outer element and a secondary inner element to extend service intervals while keeping airflow steady.

• Outer filter captures larger debris and extends overall filter life
• Inner filter provides a second barrier for fine particles
• Large filtration surface area preserves airflow and performance

How easy is installation and maintenance?

Installation is straightforward for anyone familiar with basic tractor maintenance—no special tools required for most models. Replace both elements together to ensure optimal sealing and filtration; inspect housing and seals while changing filters to prevent leaks.

• Direct replacement design for simple swap-in installation
• Inspect filter housing seals and clean debris before installing
• Recommended to change both inner and outer elements at the same time

What are the materials and expected durability of these filters?

The BOLEWIN elements use high-quality media engineered to balance filtration efficiency with airflow. While longevity depends on operating environment, the construction is intended to withstand typical agricultural and light industrial use.

• Durable filter media resists collapse and maintains airflow
• Designed for dusty field conditions and regular maintenance schedules
• Aftermarket build quality engineered to match OEM fit and function

Who is this for: This BOLEWIN P822858 + P821575 air filter set is for owners and technicians who maintain Kubota L-series tractors or Kawasaki-powered equipment and need a reliable, cost-effective replacement for OEM filters. It's suited to agricultural users, landscapers, property managers and small-fleet operators who want a direct-fit aftermarket option that restores proper air filtration without extensive modification.