Product Overview
The Dinex 17200018 is an OEM-grade M12 × 1.25 weld-in sensor bung engineered for heavy-duty commercial exhaust, DPF, and DOC canister sensor port repairs. Featuring a factory-spec Ø5.6 mm internal probe bore and a precision-machined conical flare seat, it provides an airtight, metal-to-metal seal for standard small-probe Exhaust Gas Temperature (EGT) sensors without requiring gaskets or crush washers.
Product Specifications
| Manufacturer | Dinex |
| Part Number | 17200018 |
| Thread Size & Pitch | M12 × 1.25 |
| Through-Bore Diameter | Ø5.6 mm (0.22 in) |
| Seating Surface | Conical Flare Seat (Normal / Inverted Flare Style) |
| Sealing Method | Metal-to-Metal Internal Flare Seal (No Gasket Required) |
| Profile Style | Weld-In Universal Replacement |
| Outer Diameter (OD) | 1.11 in (28.20 mm) |
| Overall Length / Height | 0.80 in (20.32 mm) |
| Width | 1.11 in (28.20 mm) |
| Weight | 0.08 lbs (0.04 kg) |
| Primary Application | DPF / DOC Canister EGT Sensor Ports |
Key Features & Engineering Details
- Accurate Ø5.6 mm Sensor Bore: Custom-machined to accommodate standard ≤5.0 mm EGT probe tips while keeping the flare shoulder firmly supported against exhaust backpressure.
- Precision M12 × 1.25 Threads: Clean, burr-free threads eliminate galling and stripping during high-temp field servicing.
- Weld-Ready Flange: Optimized outer profile provides clean heat distribution and penetration for TIG or MIG welding on commercial exhaust canisters and tubing.
- Extreme Temperature Durability: Resists thermal cycling fatigue and oxidation under heavy-duty regeneration cycles.