OLIFANT Air Filter Kit for Donaldson P821575 & Kawasaki 11013-7044 — 2-Set Inner + Outer OEM-Fit Replacement

OLIFANT's 2-set air filter kit replaces Donaldson P821575/P822858 and Kawasaki 11013-7044/11013-7045 to restore clean intake airflow for compatible small engines.

This listing is for two full filter sets (each set includes one inner and one outer filter) designed to fit a wide range of Kawasaki, Briggs & Stratton and other small engine applications. The kit matches Donaldson and OEM part numbers and is supplied as two complete pairs so you can change both filters at once, reducing maintenance hassle and ensuring both pre-filter and main-filter protection are fresh.

Which engines and part numbers does this OLIFANT kit work with?

The filters are engineered to be cross-compatible with several commonly used small engines and aftermarket references. They are direct replacements for Donaldson P821575 and P822858 and for Kawasaki 11013-7044 and 11013-7045, and also fit many Briggs & Stratton and Fleetguard equivalents.

• Donaldson: P821575 & P822858
• Kawasaki: 11013-7044 & 11013-7045
• Briggs & Stratton references: 841497, 821136; Fleetguard: AF25551 & AF25552
• Compatible with Kawasaki FH, FX, FD series and many 25 HP and similar engines

How do these inner and outer filters improve engine maintenance?

Using matched inner and outer elements ensures both coarse and fine particle capture, protecting the carburetor and cylinder from abrasive dust. Replacing both elements at once maintains designed airflow and filtration efficiency, simplifying servicing and reducing the risk of premature wear.

• Outer filter catches large debris, extending inner filter life
• Inner filter provides fine particulate filtration for engine protection
• Sold as two complete sets so both elements can be replaced together

What are the physical and packaging details I should know?

Each package contains two sets: two inner filters and two outer filters, packed to prevent deformation during shipping. The shapes and sealing edges match OEM profiles for straightforward installation; no modifications are required in most applications.

• Package: 2 sets (2 inner + 2 outer = 4 pieces total)
• Sealing edges and pleat geometry designed for OEM fit
• Durable media and frames to withstand routine service handling

How should I choose when to replace these filters?

Replace filters according to your engine manufacturer’s schedule or sooner in dusty conditions. Inspect filters during routine maintenance; if the outer element is heavily clogged or the inner shows dark soiling, install new elements from this kit to restore intake efficiency.

• Check filters each service interval, more often in dusty use
• Replace both inner and outer if either shows heavy contamination
• Using matched sets helps maintain intended airflow and engine performance

Who is this for: This OLIFANT 2-pack air filter kit is intended for owners and service technicians of lawn tractors, commercial mowers, and small engines using Kawasaki FH/FX/FD series and compatible Briggs & Stratton models who need an economical, OEM-equivalent replacement. It’s particularly useful for shops that prefer stocking complete inner+outer sets to speed preventive maintenance and for operators working in dusty or seasonal conditions who want reliable, easy-to-install filtration replacements.