Volvo D11, D13, D16 DOC 2013-2017: OEM 21756506

Precision DOC Solution for Volvo D-Series Engines

What Is It?

The Diesel Oxidation Catalyst (DOC) OEM 21756506 is a direct-fit emissions component for Volvo D11, D13, and D16 engines manufactured between 2013 and 2017. This unit serves as the first stage in the exhaust aftertreatment system, oxidizing hydrocarbons (HC) and carbon monoxide (CO) into less harmful compounds before they enter the Diesel Particulate Filter (DPF).

Why Choose OEM 21756506?

Built to exact Volvo specifications, this DOC ensures proper integration with your engine's emissions system. It promotes the right exhaust temperature and gas composition needed to support downstream components and maintain smooth system operation.

Key Benefits

✅ OEM Fit for 2013–2017 Volvo D-Series Engines: Designed specifically for D11, D13, and D16 platforms
✅ Reduces Harmful Emissions: Oxidizes HC and CO to support cleaner exhaust
✅ Supports Downstream Functionality: Helps maintain optimal conditions for DPF regeneration
✅ Thermally Resilient: Built to withstand continuous high-heat operation
✅ Sensor-Compatible: Fully integrates with OEM pressure and temperature sensors

Applications

Ideal for Volvo trucks equipped with D11, D13, or D16 engines from 2013 to 2017. This DOC is commonly used in long-haul, regional, and vocational vehicles where emissions compliance and system reliability are key operational factors.

Installation Notes

A qualified technician should handle the installation. Ensure all sensor ports, clamps, and gaskets are in good condition before fitting. After installation, reset the DOC-related parameters in the ECM using Volvo-compatible diagnostic tools. A regeneration cycle may be required to initialize the system.

Final Thoughts

The OEM 21756506 DOC is a trusted emissions component that plays a crucial role in the health of your Volvo truck’s aftertreatment system. With a reliable factory fit and durable construction, it helps keep your vehicle compliant, efficient, and road-ready.