DEF Dosing Unit Pump by Kartiyer – Rust Resistant Pump for Cummins

Description

Product Overview

The Kartiyer DEF Dosing Unit Pump is a precision‑engineered component designed to meet the demanding requirements of modern diesel engines that utilize selective catalytic reduction (SCR) technology. Built to replace part numbers 5273337, 95053001, A034J232, CES A034J233, and 4931694, this pump integrates seamlessly with Cummins ISB4.5, ISD4.5, ISB6.7, ISD6.7, ISM11, and ISX15 engine families. Its compact dimensions—13.27 x 10.63 x 7.8 inches—and a modest weight of 10.8 pounds make it an ideal fit for both laboratory test rigs and full‑scale industrial installations. The pump’s internal chambers are machined from high‑grade, rust‑resistant alloys that provide exceptional corrosion protection, even when exposed to the aggressive urea solutions used in emissions control systems.

Beyond its robust construction, the pump features a lightweight design that reduces overall system mass without compromising structural integrity. This balance of strength and weight contributes to lower energy consumption during operation, extending the life of ancillary components such as motor drives and control electronics. The dosing mechanism utilizes a precision‑tuned metering valve that delivers a consistent flow of urea solution, ensuring optimal NOx reduction across a wide range of engine loads and operating temperatures. The pump’s performance is validated by rigorous testing protocols that simulate real‑world conditions, guaranteeing reliability for both short‑term laboratory experiments and long‑term field deployments.

Key specifications include a maximum operating pressure of 30 bar, a flow rate range of 0.5–5 L/h, and an operating temperature envelope from –20 °C to +80 °C. The unit is equipped with standard ISO‑compatible fittings, allowing quick integration with existing fluid lines and control systems. Additionally, the pump’s electronic interface supports common communication protocols such as CANbus and Modbus, enabling seamless data exchange with engine control units (ECUs) and supervisory control and data acquisition (SCADA) platforms. This connectivity facilitates real‑time monitoring of dosing accuracy, pump health, and maintenance alerts, empowering users to implement predictive maintenance strategies.

Manufactured by Kartiyer, a reputable supplier known for its commitment to quality and innovation, the DEF Dosing Unit Pump benefits from a comprehensive quality management system that adheres to ISO 9001 standards. Each unit undergoes a multi‑stage inspection process, including dimensional verification, material composition analysis, and functional performance testing. The result is a product that consistently meets or exceeds OEM specifications, providing confidence to engineers, technicians, and end‑users who rely on precise dosing for emissions compliance.

Usage

This dosing pump is ideally suited for a variety of applications where accurate urea injection is critical. In heavy‑duty truck fleets, the pump ensures that SCR systems receive the exact amount of diesel exhaust fluid (DEF) needed to achieve regulatory NOx reductions, thereby supporting fleet operators in meeting environmental standards while maintaining fuel efficiency. In marine propulsion systems, the pump’s corrosion‑resistant construction withstands the salty, humid conditions typical of offshore environments, delivering reliable performance over extended service intervals.

Laboratory and research facilities benefit from the pump’s precise metering capabilities when conducting engine test cycles, emissions studies, or component durability assessments. Its compact footprint allows it to be mounted on bench‑top rigs, while the integrated electronic interface provides researchers with granular data for analysis. The pump also excels in stationary power generation units, where continuous operation demands a dosing solution that can handle high‑temperature cycles and variable load demands without degradation.

Installation is straightforward: the pump’s inlet and outlet ports accept standard ½‑inch NPT fittings, and the included mounting brackets facilitate secure attachment to engine blocks or test frames. Users should verify compatibility with existing control hardware, ensuring that communication settings (baud rate, address, etc.) align with the pump’s default configuration. Once installed, the pump can be calibrated using the manufacturer’s software suite, which offers step‑by‑step guidance for setting flow rates, pressure limits, and alarm thresholds. Proper commissioning guarantees that the dosing system operates within the specified performance envelope, delivering consistent urea delivery throughout the engine’s operating range.

Why Choose Us

Choosing the Kartiyer DEF Dosing Unit Pump means selecting a product backed by a worry‑free return and refund policy. Kartiyer stands behind each pump with a 12‑month limited warranty that covers manufacturing defects and material failures, providing peace of mind for both OEMs and aftermarket distributors. In the unlikely event of a performance issue, customers can contact the dedicated support team, reference the frame number, and receive prompt assistance, including troubleshooting guidance or a replacement unit.

Our commitment to after‑sales service extends beyond warranty coverage. Kartiyer offers a comprehensive technical support portal that includes downloadable manuals, wiring diagrams, and firmware updates. Engineers can access detailed installation videos that walk through the mounting process, electrical connections, and calibration steps, reducing downtime and ensuring correct implementation. Additionally, our global network of service centers enables rapid parts delivery and on‑site assistance for critical applications where extended outages are not acceptable.

Quality assurance is embedded in every stage of production. Raw materials are sourced from vetted suppliers with proven track records in corrosion‑resistant alloys. Automated machining centers maintain tight tolerances, while in‑process inspections verify dimensional accuracy. Final testing includes pressure endurance, flow consistency, and environmental stress screening, guaranteeing that each pump leaves the factory ready for immediate deployment. This rigorous approach minimizes the risk of premature failure and maximizes return on investment for customers across diverse industries.

Key Features

• Rust‑resistant alloy construction provides long‑lasting durability in harsh chemical environments.
• Lightweight design reduces overall system mass, improving fuel efficiency and ease of installation.
• Precision metering valve ensures accurate urea flow for optimal emissions reduction across all engine loads.
• Integrated CANbus/Modbus communication enables real‑time monitoring and seamless integration with existing control systems.
• 12‑month warranty and dedicated technical support deliver confidence and rapid assistance when needed.

FAQ

What engine models are compatible with this dosing pump?

The pump is compatible with Cummins ISB4.5, ISD4.5, ISB6.7, ISD6.7, ISM11, and ISX15 engine families. It replaces part numbers 5273337, 95053001, A034J232, CES A034J233, and 4931694, ensuring a direct fit for those applications.

How do I verify that this pump matches my vehicle’s part number?

Before purchasing, compare the replacement part numbers listed in the product description with the part number on your existing pump or in your vehicle’s service manual. If the numbers match, the unit is compatible. For added assurance, you can contact our support team with your engine’s serial number for confirmation.

Can the pump be used in marine or offshore environments?

Yes. The pump’s rust‑resistant alloy and sealed electrical connections are designed to withstand salty, humid conditions typical of marine applications. Proper installation with corrosion‑protected fittings further enhances its suitability for offshore use.

What maintenance is required to keep the pump operating optimally?

Routine maintenance includes visual inspection of inlet and outlet connections for leaks, checking the dosing valve for clogging, and verifying sensor readings via the integrated communication interface. The pump’s self‑diagnostic features will alert you to any deviations from normal operating parameters, allowing proactive servicing.

Is there a software tool for calibrating flow rates?

Kartiyer provides a free calibration utility that connects to the pump via USB or Ethernet. The software guides users through setting target flow rates, pressure limits, and alarm thresholds, and it records performance data for documentation and compliance reporting.