4389140 Complete SCR Urea Dosing Pump Supply Module for Cummins ISX15 X15 Freightliner
Tax calculated at checkout · USD · Free 60-day returns
- AST-DEF-4389140-CUMMINS
Match the number printed on your old part or in the vehicle service manual — not the part name.
What this part is
Buy replacement 4389140 Complete SCR Urea Dosing Pump Supply Module for Cummins ISX15 X15 Freightliner (OE 4389140). Verified fit for Cummins ISX15, X15, ISB6.7, ISL9, Freightliner Cascadia, Kenworth, Peterbilt (Complete Underfloor Urea Supply Unit). 12-month warranty, 60-day returns, fast global dispatch. SKU: AST-DEF-4389140-CUMMINS.
4389140 Complete SCR Urea Dosing Pump Supply Module for Cummins ISX15 X15 Freightliner. High-reliability aftermarket replacement component from AutoSensor Tech. Tested and calibrated to meet or exceed OEM specifications for SCR emissions reduction.
Fitment & Compatibility Guarantee
Direct plug-and-play fitment for: Cummins ISX15, X15, ISB6.7, ISL9, Freightliner Cascadia, Kenworth, Peterbilt (Complete Underfloor Urea Supply Unit).
Interchangeable with OEM part numbers: 4389140, 4389140RX, 2888111, 4309449, 4309449RX, 2888112, A0001404478, 0444042003.
Technical Specifications
| Primary OE Part Number | 4389140 |
| System Platform | Bosch Denoxtronic 2.2 Supply Module |
| Operating Voltage | 12V / 24V Commercial |
| Media Fluid | Diesel Exhaust Fluid (DEF) / AdBlue (ISO 22241) |
| Condition | Brand New OE-Quality Replacement |
| Warranty | 12 Months Replacement Warranty |
| Shipping | Fast Worldwide Dispatch (Air Express Available) |
Technical specifications
| Direct plug | and-play fitment for |
|---|---|
| ConditionBrand New OE | Quality Replacement |
| Month WarrantyHassle | free replacement guarantee |
Identification
| SKU | AST-DEF-4389140-CUMMINS |
|---|---|
| Part number | 4389140 |
| Brand | Cummins |
| Category | Cummins |
Verified fitment
| Brand / platform | Part number(s) |
|---|---|
| Cummins | 4389140 · AST-DEF-4389140-CUMMINS |
| Freightliner | 4389140 · AST-DEF-4389140-CUMMINS |
12-month parts warranty
Every part ships with a 12-month warranty from the date of delivery. If the part fails under normal use within that window, we replace it or refund the purchase price — your choice.
What we cover
- Manufacturing defects — no questions asked.
- Early failure within the warranty period.
- Replacement shipping both ways, on us.
What we do not cover
- Damage from incorrect installation.
- Parts modified, disassembled, or used in racing.
- Cosmetic wear or normal ageing.
Shipping rates
| Destination | Carrier | Delivery | Cost |
|---|---|---|---|
| United States (cont.) | UPS / USPS | 2–4 biz days | Free $99+ · $6.90 |
| European Union | DHL / DPD | 3–6 biz days | Free $99+ · €8.90 |
| UK / Switzerland | DHL | 3–5 biz days | Free $99+ · £8.00 |
| Rest of world | DHL Express | 5–10 biz days | Calculated at checkout |
Returns
60-day no-fuss returns. Order a return label from your account, drop the part at any carrier drop-off, and we refund within 5 business days of receiving it. Wrong-fit returns are always free.
Returns policy
