X4XZ Engine Air Filter Kit for Kubota Tractors — Outer 6C060-99410 + Inner 32721-58242, Heavy-Duty

X4XZ 6C060-99410 outer air filter with 32721-58242 inner filter is a two-piece replacement kit engineered to protect Kubota engines by stopping large and fine airborne contaminants before they reach critical components.

This replacement pair — outer air filter 6C060-99410 and inner air filter 32721-58242 — fits many Kubota tractors, excavators, RTVs, mowers and generators. The set combines a rigid perforated outer shell for structural strength with a finely pleated inner element to trap small particles, forming a vibration-resistant seal that extends engine life and maintains airflow where it matters most.

What Kubota machines will this filter kit fit?

This X4XZ kit covers a broad range of Kubota equipment across several series, including compact tractors, excavators, RTV utility vehicles, front mowers and generators. Check the listed model groups to confirm compatibility with your exact year and submodel before ordering.

• Compatible series: Z, U, RTV, LX, K/KX, GL (generators), F/FZ/GF commercial mowers.
• Includes B-series compact tractor model coverage such as B1410, B2301, B2410, B3200 and many more.
• Replaces OE numbers: 6C060-99410 & 32721-58242; also substitutes 6C060-99414, 6A100-82630, K7311-82390, GA100-82630.

How does the two-piece design protect my engine?

The outer filter delivers structural support and stops larger debris, while the inner pleated element captures finer dust and contaminants. Together they create a tight, vibration-resistant seal that reduces the chance of particulates bypassing the filter under rough conditions.

• Outer: circular perforated iron mesh for increased rigidity and longer life.
• Inner: fine media for trapping small particles and protecting delicate engine parts.
• Seal & fit: designed to reduce vibration transfer and maintain consistent airflow.

Is installation straightforward and what’s included in the package?

Yes — this kit includes one outer air filter and one inner air filter, ready to swap with your old elements. No manual is included, but installation is typically a simple removal of the air cleaner housing, replace the old elements, and reseal the housing.

• Package: 1 outer filter (6C060-99410) + 1 inner filter (32721-58242).
• Tool need: basic hand tools may be required depending on your machine’s housing design.
• Support: X4XZ offers 24-hour customer service and a 1-year product service period for assistance.

Will this kit hold up under heavy use and harsh environments?

The outer perforated iron mesh boosts structural durability so the filter resists collapse and damage in demanding applications. Combined with the inner element’s fine filtration, the kit is built to perform across dusty, wet, and vibration-prone work conditions common to agricultural and construction equipment.

• Durability: reinforced outer shell reduces deformation and extends service life.
• Reliability: two-stage filtration helps maintain engine performance under load.
• Service life: designed for routine replacement intervals similar to OEM filters.

Who is this for: Owners and fleet managers of Kubota-branded compact tractors, excavators, RTV utility vehicles, commercial front mowers and generators who want a dependable, OE-compatible air intake solution. If you need a direct replacement that matches multiple OEM numbers and stands up to tough operating conditions, the X4XZ 6C060-99410 + 32721-58242 kit is designed for that purpose. Contact X4XZ support if you are unsure about fitment or need installation guidance.