FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle: A Comprehensive Guide to 35 Key Components

Welcome to this comprehensive technical guide on the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This is the complete, multi-part Selective Catalytic Reduction (SCR) fluid-handling system.

The FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle assembly is responsible for storing, heating, pumping, and injecting Diesel Exhaust Fluid (DEF / Urea) into the exhaust stream. This process is essential for neutralizing harmful Nitrogen Oxides (NOx), ensuring the truck complies with modern emissions standards.

This guide is an essential resource for professional technicians and parts specialists. We will deconstruct the entire FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle system, including all 35 serviceable components, from the tank itself to the final injection nozzle and its critical heating pipes.

The “Urea Tank And Bracket” Sub-Assembly

The “Tank and Bracket” components form the foundation of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle. The ‘Urea tank module assembly’ (1161010-82T-C00) is the main reservoir. This is a high-strength, corrosion-proof polymer tank designed to safely hold the DEF (urea) fluid. It includes an integrated module that typically houses the fluid-level sensor, temperature sensor, and the pickup/return tubes.

A heavy, fluid-filled tank requires a robust mounting system. This is provided by the ‘Urea tank bracket assembly’ (1160020-92W), the ‘Urea tank bracket back plate’ (1160203-Z000), and the ‘Urea tank bracket connecting plate’ (1160201-92W). This steel “cradle” bolts to the truck’s chassis.

To prevent vibration and wear, this mounting system is fully isolated. ‘Gasket-urea tank back plate’ (1160028-92W) and ‘Gasket-urea tank base plate’ (1160117-92W) provide a soft cushion for the tank to rest on. This entire mounting system is a core part of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle design.

The “Clamping Band” and Sealing System

The “Clamping Band” components of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle are what secure the tank into its bracket. The ‘Clamping band assembly’ (1160055-2000) and ‘Clamping band strap’ (1160056-2000) are heavy-gauge steel straps that wrap around the tank.

Like the brackets, these straps are isolated by ‘Gasket-clamping band’ (1160134-2000) strips to prevent chaffing. The straps are secured with ‘Clamping band retaining pin’ (1160053-2000) units.

The tank’s serviceable components are also detailed. The ‘Urea tank fill port assembly’ (1160035-71U) is the main cap, which must seal tightly. The ‘Urea tank cover’ (1160221-71U) and its ‘Gasket-urea tank cover’ (1160222-71U) provide a secondary, sealed access port, likely for the main pump/sensor module. These seals are critical to preventing contamination of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle fluid.

The “Urea Supply Piping”: Tank Heating Circuit

The “Urea Supply Piping” is a complex network, with its most critical function being to prevent the DEF (urea) from freezing at -11°C (11°F). The FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle uses hot engine coolant to heat the tank.

This circuit is controlled by a solenoid valve. The ‘Urea tank heating inlet water pipe assembly-engine to electromagnetic valve’ (1160220-82T) brings hot coolant from the engine. When the ECU commands it, this coolant flows through the ‘Urea tank heating inlet water pipe assembly-electromagnetic valve to urea tank’ (1160230-82T) and into the tank’s internal heater.

After circulating and thawing the urea, the coolant exits via the ‘Urea tank heating return water pipe assembly-urea tank to engine’ (1160240-82T) and flows back to the engine. This “piping” logic is essential for all-weather operation of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle.

The “Urea Nozzle” and Final Delivery

The final, “business end” of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle is the ‘Urea spray nozzle’ (1160130-85R-C00). This is the electronically controlled injector that atomizes the DEF fluid and sprays it into the hot exhaust gas stream, just before the SCR catalyst.

Because this nozzle lives in the extreme heat of the exhaust system, it must also be cooled. The FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle plumbing includes a dedicated cooling loop for it: the ‘Urea nozzle cooling inlet water pipe’ (1160315-82T) and the ‘Urea nozzle cooling return water pipe’ (1160310-82T).

This nozzle is secured by a ‘Urea spray nozzle bracket’ (1160126-93B) and sealed with the ‘Urea spray nozzle sealing gasket’ (1161216-71U). A failure here, either a clogged nozzle or a leak in its cooling circuit, will quickly disable the entire emissions system.

Ancillary Piping, Seals, and Fasteners

The rest of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle parts list details the various connecting pipes and hardware. This includes the tank’s ventilation system, such as the ‘Intake pipe assembly-breather to air filter’ (1160320-82T) and ‘Intake pipe assembly-bottom plate to breather’ (1160330-82T), which allows air to displace the fluid as it’s pumped out.

It also includes the air/exhaust lines for the tank’s internal pressure management, ‘Exhaust pipe assembly-urea tank to exhaust valve’ (1160350-80S) and ‘Intake pipe assembly-air valve to urea tank’ (1160340-80S).

The entire system is secured with a variety of high-grade fasteners, including ‘Hex flange bolts’ (Q1840640, Q1841440, Q1841430), ‘Inner hex socket head cap screws’ (Q02180625, Q02181280), and ‘Hex nuts’ (CQ34014, Q039610). Various ‘Plastic zip ties’ (T67417246) and ‘Support’ brackets (1101138-61B) ensure these lines are free from vibration and chaffing. This level of detail is essential for the long-term reliability of the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle.

FAW Urea Tank, Bracket, Supply Piping, and Nozzle Parts List

The following table provides the complete, detailed breakdown of all 35 components identified in the ‘Urea Tank and Bracket, Urea Supply Piping, Urea Nozzle’ diagram for the FAW CA4251P66K24T1A3E5 tractor. This FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle system is essential for emissions compliance.

Technical Specifications and Assembly Context

The specifications for the FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle system are defined by its complex, multi-part design for storing, heating, and delivering DEF (Urea). The entire FAW Urea Tank And Bracket, Urea Supply Piping, Urea Nozzle assembly is critical for emissions compliance.