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Air Filter 12Y9791172 12Y-979-1174 for Komatsu Dozer D39PX-22 D31EX-22 D37PX-22
$209.99
Sale price
$209.99
Regular price
Available to Order
This engine air filter is a high-quality aftermarket replacement for compatible Komatsu construction equipment that helps protect the engine or cab system from dust and airborne debris.
Not sure which part fits your equipment?
Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
A clean air filter allows the required airflow while trapping dirt before it reaches the engine or operator compartment. Replacement is recommended when the original filter is loaded, damaged, or no longer sealing correctly.
This part matches reference numbers 12Y9791172 and 12Y-979-1174. Compare the original component’s part number, overall dimensions, sealing surfaces, and inner or outer filter configuration before ordering.
Key Features & Performance
- Traps dust and airborne debris
- Supports proper airflow through the compatible system
- Replaces a dirty, damaged, or restricted filter
- Designed for routine equipment maintenance
Fitment & Compatibility
Compatible with select Komatsu Dozer D39PX-22 D31EX-22 D37PX-22 applications. Serial-number breaks, production changes, or equipment options may affect the required part.
Technical Specifications
- Product Type: Engine Air Filter
- Compatible Brand: Komatsu
- Part Number(s): 12Y9791172, 12Y-979-1174
Frequently Asked Questions
Q: How do I know when the air filter should be replaced? A: Replace it when it is damaged, heavily restricted, contaminated, or due according to the equipment’s maintenance schedule.
Q: Is this an original OEM part? A: This is an aftermarket replacement; brand names and part numbers are used only to identify compatibility.
Compatibility may vary by serial number, production date, or equipment configuration. Verify fitment before purchase.