Genuine Cummins 4388438 DEF Fluid Heating Hose | SCR System
SKU 4388438
In stock: 2 available · Ships from Kelowna BC
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Match the listed SKU and verified cross-references to your current part number. If fitment is not listed, send AIM Rentals the machine details and current part number before ordering.
The Cummins 4388438 is a Genuine Cummins OEM DEF Fluid Heating Hose (also referenced as A053N043) for SCR aftertreatment systems on Cummins Tier 4 diesel engines. This heated hose maintains DEF temperature to prevent freezing and ensure reliable DEF delivery to the SCR catalyst. Stocked in Kelowna, BC — AIM Rentals ships Canada-wide.
Specifications
- Part Number: 4388438
- Manufacturer: Cummins Inc.
- Type: DEF Fluid Heating Hose (Plain Hose)
- Function: Heats DEF fluid for cold-weather SCR system operation
- Condition: New Genuine OEM
Fitment
Designed for Cummins SCR aftertreatment systems on Tier 4 diesel engines. Confirm your engine model and aftertreatment configuration with AIM Rentals before ordering.
Cross-References
- Cummins 4388438 (OEM primary)
- A053N043
- 3871243
- 338-4472, 338-5028
- 403-4635-04
FAQ
Is this a genuine Cummins DEF hose?
Yes. Cummins 4388438 (A053N043) is confirmed as a Genuine Cummins OEM DEF fluid heating hose.
Why does a DEF hose have a heater?
DEF freezes at -11°C (12°F). Heated DEF hoses allow the SCR system to function in cold-weather conditions common across Canada.
What cross-references apply?
This hose is also identified as A053N043 and supersedes 3871243, 338-4472, 338-5028, and 403-4635-04 in various Cummins applications.
Does AIM ship Canada-wide?
Yes — stocked in Kelowna, BC and ships to all provinces.
Fitment data available on request. Email sales@rentwithaim.ca with your machine year/make/model.
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Ships from Kelowna BC after order review.
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