Tax calculated at checkout · USD · Free 60-day returns
Match the number printed on your old part or in the vehicle service manual — not the part name.
DEF level sensor for Cummins ISX15. OE 4388050. Plug-and-play, function tested, 12-month warranty.
DEF LEVEL SENSOR FOR CUMMINS OEM 4388050
Fits: Cummins ISX15 DEF tank level sensor, alternate probe length.
Cross reference: Cross to 4388044.
OE-quality replacement DEF (diesel exhaust fluid) level sensor from SHRAUTOPARTS. Direct plug-and-play fitment, sealed connector, corrosion-resistant probe. Every unit is function-tested before shipment and covered by a 12-month warranty. SHRAUTOPARTS is an IATF16949-certified factory supplier with 900+ sensor models in stock.
| HRAUTOPARTS is an IATF16949 | certified factory supplier with 900 |
|---|
| SKU | DEF-CUMMINS-4388050 |
|---|---|
| Part number | 4388050 |
| Brand | Cummins |
| Category | DEF Level Sensors |
| Brand / platform | Part number(s) |
|---|---|
| Cummins | 4388050 · DEF-CUMMINS-4388050 |
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.
| 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 |
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