454-9549 DEF Dosing Valve Injector for Caterpillar Excavator Wheel Loader C7.1 C9.3 C13
Tax calculated at checkout · USD · Free 60-day returns
- AST-DEF-4549549-CAT
What this part is
Buy replacement 454-9549 DEF Dosing Valve Injector for Caterpillar Excavator Wheel Loader C7.1 C9.3 C13 (OE 454-9549). Verified fit for Caterpillar Excavators 320E, 323E, 336E, Wheel Loaders 950K, 966K, 980K, CT660 On-Highway Trucks, C7.1, C9.3, C13. 12-month warranty, 60-day returns, fast global dispatch. SKU: AST-DEF-4549549-CAT.
454-9549 DEF Dosing Valve Injector for Caterpillar Excavator Wheel Loader C7.1 C9.3 C13. 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: Caterpillar Excavators 320E, 323E, 336E, Wheel Loaders 950K, 966K, 980K, CT660 On-Highway Trucks, C7.1, C9.3, C13.
Interchangeable with OEM part numbers: 454-9549, 4549549, 388-7554, 3887554, 479-7724, 4797724, 524-1151.
Technical Specifications
| Primary OE Part Number | 454-9549 |
| System Platform | CAT Clean Emissions Module (CEM) SCR |
| Operating Voltage | 24V Heavy Equipment |
| 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 |
|---|---|
| CT660 On | Highway Trucks, C7.1, C9.3, C13. |
| Primary OE Part Number454 | 9549 |
| ConditionBrand New OE | Quality Replacement |
| Month WarrantyHassle | free replacement guarantee |
Identification
| SKU | AST-DEF-4549549-CAT |
|---|---|
| Category | Caterpillar |
Verified fitment
Send us your VIN and we will confirm fitment within 4 business hours.
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
