DEF Injector for Caterpillar C7 / C9 / C13 / C15 / C18 — Built for Extreme Duty Cycles
Direct replacement for Caterpillar C-series Tier 4 Final engines. Vibration-tested to SAE J1455, IP69K optional for high-pressure washdown environments. Flow-calibrated to ±2% with individual test data.
Product Overview
Caterpillar C-series engines in construction, mining, and industrial applications face operating conditions that on-highway trucks never see: sustained high loads, abrasive dust, pressure washing, and extreme temperature swings. This DEF injector is engineered specifically for those conditions — with optional IP69K sealing, SAE J1455 vibration certification, and corrosion-resistant 316L stainless steel construction for marine and mining environments.
Key Benefits
- Direct replacement for CAT OEM part numbers 456-8434, 456-8435, 456-8436
- SAE J1455 vibration tested — survives the pounding of an excavator or haul truck
- ±2% flow calibration across three pressure points — individual test data included
- IP69K option for equipment subjected to high-pressure, high-temperature washdown
- 316L stainless steel option for marine, mining, and saltwater exposure
- 24-month / 200,000 km warranty on all configurations
Technical Specifications
| Parameter | Specification |
|---|---|
| Application | CAT C7, C9, C13, C15, C18 (Tier 4 Final) |
| OEM Cross-Reference | 456-8434 (C7/C9), 456-8435 (C13/C15), 456-8436 (C18) |
| DEFinjector Part Number | DFI-CAT-001 (C7/C9), DFI-CAT-002 (C13/C15), DFI-CAT-003 (C18) |
| Flow Rate (nominal) | 12 L/h (C7/C9), 18 L/h (C13/C15), 25 L/h (C18) |
| Flow Accuracy | ±2% of nominal |
| Supply Voltage | 12V DC / 24V DC (selectable) |
| Connector Type | Metri-Pack 150 2-pin |
| Operating Temperature | -40°C to +175°C |
| Enclosure Rating | IP67 (standard); IP69K (optional) |
| Body Material | 304 SS (standard); 316L SS (marine/mining option) |
| Vibration Rating | SAE J1455 compliant |
| Warranty | 24 months / 200,000 km |
Compatibility
| Engine | Equipment Type | Emissions Standard |
|---|---|---|
| CAT C7 | Medium dozers, wheel loaders, excavators (20-30 ton) | Tier 4 Final |
| CAT C9 | Large excavators, wheel loaders, articulated trucks | Tier 4 Final |
| CAT C13 | Large dozers, motor graders, off-highway trucks | Tier 4 Final |
| CAT C15 | Mining trucks (773G, 775G), large wheel loaders (988K) | Tier 4 Final |
| CAT C18 | Mining trucks (777G), large dozers (D10T2), marine engines | Tier 4 Final |
Ordering Information
| Order Type | MOQ | Lead Time | Shipping |
|---|---|---|---|
| Sample / Evaluation | 1-5 units | 5-7 days | Air courier |
| Standard Order | 50-500 units | 20-25 days | Sea freight LCL |
| Bulk / Fleet | 500+ units | 25-30 days | Sea freight FCL |
Related Resources
Caterpillar DEF Injector Cross-Reference Table
Cross-references to CAT part numbers 456-8434 through 456-8436 — see our full Caterpillar DEF injector compatibility chart for all C-series engines.
DEF Injector Failure Symptoms Guide
Harsh mining and construction environments accelerate wear — learn the early warning signs of a failing DEF injector before derate mode kicks in.
Quality Testing & SAE J1455 Vibration Certification
IP69K optional sealing and SAE J1455 vibration certification verified during 100% functional DEF injector testing in pre-shipment quality inspection.
B2B DEF Injector Procurement Guide
The IP69K upgrade and 316L stainless steel option are cost-justified by longer service life — see TCO analysis in our B2B DEF injector buying guide.
Request a CAT C-Series DEF Injector Quote
Request sample units for field evaluation: get a CAT C-series DEF injector quote with air courier delivery available.