Technical Guide

Bosch Urea Diesel Filter Guide

Bosch urea diesel filter part 1 457 436 033, SCR system basics, features, PDF downloads, and Class 4 through Class 8 application coverage.

Bosch urea diesel filter part 1 457 436 033 for SCR diesel truck dosing systems

Medium and heavy duty trucks manufactured starting on January 1, 2010 are required to meet EPA emission standards. Many truck manufacturers use selective catalytic reduction technology, where Bosch dosing systems inject urea into the exhaust so it can interact with the SCR catalyst and reduce NOx emissions. The Bosch urea diesel filter protects the supply module by filtering urea before it reaches the dosing module.

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SCR System Filter

Bosch Urea Diesel Filter Part 1 457 436 033

Features of Bosch urea diesel filter with O rings equalizing element and extraction tool

The Bosch Urea Filter for diesel applications is designed for and supplied to original equipment manufacturers. Bosch states that this single SKU covers up to 69 percent of Class 4 through Class 8 trucks in operation, making it a practical stock item for diesel repair shops, fleets, and parts counters.

High capacity media provides protection to original equipment manufacturer change intervals.
Included O rings provide a tight seal which helps prevent leaks.
The Bosch exclusive equalizing element buffers pressure within the pump by expanding and contracting to help prevent cracking on internal components.
The supplied extraction tool makes filter removal easier.

Maintenance Note

Replace During Scheduled Service

As part of the SCR dosing system, the supply module contains a main filter that filters urea being pumped into the dosing module. That filter should be replaced according to the manufacturer's scheduled maintenance requirements. Keeping the filter current helps protect the dosing module and supports correct SCR system operation.

Supports SCR dosing system maintenance.
Filters urea before it reaches the dosing module.
Helps protect the supply module and dosing components.
Useful for medium duty and heavy duty truck service planning.

Application Guide

Bosch Urea Filter 1 457 436 033 Application Coverage

The table below follows the original Bosch urea diesel filter application guide layout by truck class.

Class 8	Class 7	Class 6	Class 5	Class 4
American LaFrance	Blue Bird	Freightliner	Freightliner	Freightliner
Autocar	El Dorado	Sterling	Dodge Chassis Cab	Hino
Crane Carrier	Ford	Hino	Hino	UD Truck
El Dorado	Freightliner	UD Truck	UD Truck	Dodge Chassis Cab
Emergency One	Hino
Freightliner	International Navistar
Gillig	Kenworth
International Navistar	Peterbilt
Kalmar	Spartan
Kenworth	Sterling
Mack	Thomas Bus
Orion	UD Truck
Oshkosh	Volvo
Peterbilt
Pierce
Roadmaster
Spartan
Terex
Thomas Bus
Van Hool Bus
Volvo
Western Star