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SKU:
ZZ3F05682
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RD158-42270 Outer Inner Air Filter Kit RD158-42280 for Kubota KX040-4 KX040-5
$63.79
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$63.79
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$63.79
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Compatible Models
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Compatible equipment / model
Air Filter Kit for Kubota
This Outer Inner Air Filter Kit for Kubota KX040-4 and KX040-5 models replaces RD158-42270 and RD158-42280, providing essential two-stage filtration for excavator engines.
Overview
This Outer Inner Air Filter Kit combines the outer and inner filter elements into one complete package for Kubota KX040-4 and KX040-5 compact excavators. The kit removes airborne contaminants before they enter the engine, preserving combustion efficiency and reducing wear. It is a direct service replacement for cross-reference numbers RD158-42270 and RD158-42280.
Built For Performance
- Dual element design for maximum particulate capture
- High-strength filter media resists moisture and clogging
- Precision-molded seals prevent unfiltered air bypass
- Replaces OEM cross-reference RD158-42270 and RD158-42280
- Stable pleat spacing ensures consistent airflow under load
Fits These Machines
- for Kubota KX040-4
- for Kubota KX040-5
On-The-Job Use
- Compact excavator trenching
- Utility digging and foundation work
- Landscaping and site preparation
- Demolition and debris handling
Specs At A Glance
| Part Number(s) | RD158-42270; RD158-42280 |
| Kit Contents | Outer and inner air filter |
| Compatible Models | Kubota KX040-4, KX040-5 |
Good To Know
Q: What symptoms indicate a clogged air filter on this excavator? A: Reduced engine power, increased fuel consumption, and black exhaust smoke are common signs. Replacing the filter kit restores proper air intake and engine responsiveness.
Q: Is the inner filter included in this kit? A: Yes, the kit includes both the outer and inner filter elements, ensuring a complete service set for the KX040 series. Always replace both elements together to maintain filtration efficiency.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.