Filters

High Quality 17801-31120 Auto Hepa Air Filter

A 17801-31120 auto HEPA air filter designed for Japanese vehicles, manufactured by Dongjie with a standard size and 12-month warranty. It is a direct fit replacement for OE 17801-31120, suitable for use in high-dust environments and long-haul operations where consistent air filtration is critical to engine longevity.

Warranty 12months
Size standardsize,standards
Color aspicture
MOQ 50Pcs
Brand dongjie

Ask for a Price on WhatsApp Email the Specification

Stock number held for this listing: 11373

White HEPA air filter for Japanese car, front view with OE number 17801-31120 clearly marked

Key Benefits

What This Unit Does Well

Direct fit replacement for OE 17801-31120, eliminating the need for custom gaskets or adapters
12-month warranty provides assurance against premature failure in demanding conditions
Standard size ensures compatibility with existing mounting points and housing designs
HEPA-grade filtration captures fine particulates that degrade engine performance over time
Available in bulk from 50 pieces, supporting fleet maintenance and spare parts inventory
Paper media can be specified per customer request, allowing for custom filtration needs

Application Scenarios

Where It Is Used

Engine maintenance in dusty construction zones where air quality is poor and filter life is shortened
Long-haul transport in Japan or Southeast Asia where consistent air filtration prevents turbocharger wear
Fleet operations requiring standardised filters across multiple Japanese-branded vehicles
Aftermarket repair shops stocking reliable HEPA filters for quick replacement without OEM delays

Fit

Who It Is For

Fleet owners managing Japanese commercial or passenger vehicles requiring consistent filter replacement
Aftermarket repair shops sourcing reliable HEPA filters for Japanese models without OEM lead times
Parts distributors building inventory for Japanese vehicle markets in Southeast Asia and the Middle East
Maintenance teams replacing filters on vehicles with high mileage where original filters have degraded

Buyer Pain

Problems It Solves

Uncertainty over filter fitment when replacing OEM parts with generic alternatives
Downtime caused by filters that fail before expected lifespan due to poor media quality
Lack of availability of HEPA-grade filters for Japanese vehicles in remote or emerging markets
Inconsistent filter performance across a mixed fleet due to non-standard filter designs
Delays in receiving replacement filters from original suppliers with long lead times

Engineering

Technical Features

HEPA-grade air filtration media for fine particle capture
OE number 17801-31120 compatibility for direct fitment
Standard size design matching original equipment dimensions
Plastic bag + box + carton packaging for safe transport
Customisable paper media based on customer request
12-month warranty from manufacturer

Specification

Specification Table for This Listing

Taken from the supplier specification we hold. Anything not listed here is confirmed in writing before order rather than assumed.

Specification of High Quality 17801-31120 Auto Hepa Air Filter
Warranty	12months
Size	standardsize,standardsize
Color	aspicture
MOQ	50Pcs
Brand	dongjie
OEM	17801-31120
Paper	ascustomer'srequest
Package	packingbox
Product Name	17801-31120 auto HEPA air filter for Japan car
OEM Number	17801-31120
Place of Origin	Hebei, China (Mainland)
Delivery Time	7-15 days
Function	Quick-fit
China (Mainland) Warranty	12 months
Car Model	for japanese car
Japan Car Color	as picture
Pcs Paper	as customer's request

Materials

Materials and Build

HEPA-grade filter paper media
Plastic housing with standard mounting flanges
Reinforced cardboard and plastic packaging
Custom paper media as specified by customer

Process

How an Order Is Handled

You confirm the vehicle model and OE number 17801-31120 you need to replace
We send current photos and stock status for the Dongjie filter
You confirm the order quantity, paper type, and packaging preference
We prepare the order and issue a proforma invoice with delivery timeline
Unit is packed and shipped via your chosen method - express or sea freight

Quality Control

Checks Before Loading

Each filter is visually inspected for media integrity and housing damage before packing
OEM number and brand are verified against the specification sheet
Packaging is checked for damage and correct labelling before dispatch
Shipping photos and tracking numbers are sent upon dispatch
Customer can request third-party inspection at origin if required

Customisation

What Can Be Changed

Custom paper media thickness or filtration grade as per customer request
Packaging configuration - box only, or box with inner plastic bag
Label or marking on box for internal inventory tracking
Bulk packaging with custom carton size for warehouse handling

Honest Comparison

How It Compares With the Alternatives

Generic air filter	HEPA-grade media offers superior particle capture but may have higher initial cost
OEM 17801-31120 filter	Same fitment and performance, but Dongjie offers faster delivery and lower MOQ
Non-standard size filter	Standard size ensures no modification to housing or mounting points

Use Guide

Using It Well

Install only on clean, dry surfaces to prevent contamination of the filter media
Replace at intervals recommended for Japanese vehicles to maintain engine protection
Inspect the housing and gasket for wear before installation to prevent air leaks
Do not reuse the old gasket; use a new one to ensure a proper seal
Store filters in a dry, clean environment to avoid moisture damage to the paper media

Photographs

More Views of This Unit

Photographs held for this listing. Current yard photographs of the specific unit you shortlist are taken fresh before any balance is paid.

Side view of the 17801-31120 air filter showing the standard size and housing design

Filter placed inside a plastic bag and box, showing packaging structure

Multiple 17801-31120 filters in a carton, ready for shipment

Close-up of the filter media and sealing edge, showing HEPA-grade paper

Filter installed on a Japanese vehicle engine bay, showing fitment in context

Source Specification

Manufacturer Text We Hold for This Listing

High quality 17801-31120 auto hepa air filter 17801-31120 auto hepa filter for Japan car Item Air filter Brand Dongjie Color As pictures showned Warranty 12months OEM/ODM Acceptable OE number OE 17801-31120 Function Quick-fit Packing 1. Plastic bag+box+carton 2. Be customized FAQ: 1. Can you offer OEM &ODM? Our company accept OEM&ODM, if your need it, please inform us of your specific requirements. 2. what's your mode of transportation/shipping? By DHL, FedEx, UPS, TNT,EMS EXPRESS,By sea, By air etc.Of course, you can also specify the mode of transportation, then tell us your specific requirements. 3. Payment Terms? T/T, L/C, Western Union. Paypal. if you need to pay by other ways, please negotiate with us. 4. Are you a factory or a trade company? We are factory, welcome to visit our factory at any time. Send new inquiry, please click below:

Reproduced from the supplier specification. Figures are confirmed in writing on the proforma invoice before any deposit.

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