Volvo D11, D13, D16 DOC : OEM 21756505

Emissions Efficiency for Volvo D-Series Engines

What Is It?

The Diesel Oxidation Catalyst (DOC) OEM 21756505 is an essential component of the exhaust aftertreatment system designed for Volvo D11, D13, and D16 engines. This DOC converts harmful exhaust gases such as hydrocarbons (HC) and carbon monoxide (CO) into less harmful compounds, supporting clean and compliant engine operation.

Why Choose OEM 21756505?

This unit is manufactured to Volvo’s original equipment standards, ensuring consistent oxidation working conditions, system compatibility, and reliable fit. It works in tandem with the Diesel Particulate Filter (DPF), maintaining exhaust flow and temperature to ensure proper regeneration.

Key Benefits

✅ Designed for D11, D13, D16 Engines: Compatible with Volvo platforms for 2013–2017
✅ Effective Emissions Control: Converts CO and HC into less harmful compounds
✅ Supports DPF Working Conditions: Optimizes exhaust gas temperature for soot oxidation
✅ Durable Construction: Built to handle frequent regeneration and high-heat exposure
✅ Sensor-Compatible: Accepts OEM temperature and pressure sensors with exact-fit ports

Applications

This DOC is commonly used in Volvo trucks equipped with D11, D13, or D16 engines. It is suitable for long-haul and regional transport operations where emissions compliance, system longevity, and minimal downtime are essential.

Installation Notes

Installation should be completed by a qualified technician. Inspect all mounting hardware, clamps, and sensors. After installation, reset the emissions system with Volvo-compatible diagnostics and confirm regeneration readiness. A manual regeneration may be required to fully activate the DOC system.

Final Thoughts

The OEM 21756505 DOC provides dependable emissions system working conditions for Volvo D-series engines. With OEM-grade design and construction, it supports clean exhaust operation, system health, and emissions compliance over the long haul.