URO Fuel Injection Fuel Accumulator for 1984-1993 Mercedes 190E/300E

Description

Product Overview

The URO Fuel Injection Fuel Accumulator is a precision‑engineered replacement part designed specifically for a range of late‑model Mercedes‑Benz vehicles. Built to match the original equipment specifications, this accumulator delivers the exact dimensions, mounting points, and threaded inlet connections required for a seamless fit on 1984‑1993 190E, 300E, 260E, 300CE, 300SE and 300TE models. Its vehicle‑specific design eliminates the need for modifications, ensuring a direct bolt‑on installation that restores the fuel system to factory performance levels.

Crafted from high‑grade stainless steel, the accumulator offers superior resistance to corrosion, heat, and the aggressive chemicals found in both gasoline and diesel fuel. The machined exterior provides a robust housing that protects internal components while maintaining a lightweight profile, weighing just 9.6 ounces. This material choice not only extends the service life of the part but also helps dissipate heat generated during engine operation, preserving fuel pressure stability under demanding conditions.

The internal design adheres to OE specifications, featuring a pressure‑tested diaphragm that reliably stores and releases fuel to keep system pressure within optimal ranges. This ensures consistent engine start‑up, smooth idle, and reliable power delivery across a variety of driving scenarios. The accumulator’s automatic operation mode eliminates the need for manual adjustments, providing a set‑and‑forget solution that integrates seamlessly with the vehicle’s existing fuel management system.

Compatibility extends beyond the core models listed, covering additional variants that share the same fuel line architecture and mounting geometry. By matching the OEM part numbers 000‑476‑05‑21, 438170035, and 4760621, the URO accumulator guarantees interchangeability with factory‑installed components, simplifying parts sourcing for repair shops and DIY enthusiasts alike. Its compact 3 × 5 × 3‑inch footprint fits neatly within the engine bay, preserving clearance for surrounding hoses and brackets.

Every unit undergoes rigorous quality control, including pressure testing and dimensional verification, to confirm compliance with automotive standards. URO’s manufacturing process incorporates precision machining, surface finishing, and thorough inspection to deliver a product that meets or exceeds original equipment performance. The result is a reliable, long‑lasting accumulator that restores fuel system integrity, reduces the risk of premature wear, and supports the vehicle’s overall efficiency and emissions compliance.

Usage

Installation of the URO accumulator is straightforward for qualified technicians or experienced DIY mechanics. The part replaces the factory‑installed unit using the same mounting bolts and threaded fuel inlet, requiring only basic hand tools and a brief period of engine downtime. Prior to installation, the fuel system should be depressurized, and the old accumulator removed carefully to avoid contaminating the fuel line. Once the new unit is secured, the fuel line is reconnected, and the system is primed to verify proper pressure before the engine is started.

In everyday driving, the accumulator maintains a stable fuel pressure that supports smooth acceleration, reliable cold starts, and consistent idle quality. Owners of classic Mercedes models will notice reduced engine hesitation and improved throttle response, especially in high‑altitude or extreme temperature environments where fuel delivery can be challenged. The stainless steel construction also resists the buildup of deposits, helping to keep the fuel system clean and extending the life of related components such as injectors and pumps.

Routine maintenance does not require special attention to the accumulator itself; however, periodic inspection of the fuel lines and connections is recommended to ensure there are no leaks or corrosion. Should any issues arise, the part’s OE‑approved design allows for easy removal and replacement without extensive disassembly, minimizing service time and labor costs. This makes the URO accumulator an ideal choice for both regular service intervals and unexpected repairs.

Why Choose Us

URO has built a reputation for delivering high‑quality automotive components that meet stringent industry standards. With decades of experience in fuel system engineering, the company combines advanced manufacturing techniques with rigorous testing protocols to produce parts that perform reliably under the toughest conditions. Each accumulator is produced in a controlled environment, ensuring consistency, dimensional accuracy, and material integrity that surpasses many generic alternatives on the market.

Customers benefit from a comprehensive warranty that covers defects in material and workmanship, providing peace of mind and protection against unexpected failures. In addition, URO’s dedicated technical support team is available to assist with fitment questions, installation guidance, and troubleshooting, ensuring that buyers receive the expertise they need throughout the product lifecycle. This commitment to service reinforces the brand’s focus on long‑term satisfaction and reliability.

After‑sales service includes access to detailed installation manuals, part diagrams, and a responsive parts‑replacement program that expedites the delivery of any needed components. Whether you are a professional garage or a private owner, URO’s support infrastructure is designed to minimize downtime and maximize the value of your investment in quality replacement parts.

Key Features

• Stainless steel construction resists corrosion and heat for long‑lasting durability.
• Exact OE dimensions guarantee a perfect fit without modifications.
• Automatic pressure regulation ensures consistent engine performance.
• Designed for both gasoline and diesel applications, offering versatile compatibility.
• URO warranty and dedicated support provide confidence and peace of mind.

FAQ

What vehicles are compatible with this accumulator?

The URO Fuel Injection Fuel Accumulator is compatible with Mercedes‑Benz 190E, 300E, 260E, 300CE, 300SE, and 300TE models produced between 1984 and 1993. It matches the OEM part numbers 000‑476‑05‑21, 438170035, and 4760621, ensuring a direct replacement for the original component.

Can this part be used with both gasoline and diesel engines?

Yes, the accumulator is engineered to operate reliably with both gasoline and diesel fuel systems. Its stainless steel housing and pressure‑tested diaphragm handle the differing pressure requirements and chemical properties of each fuel type, providing consistent performance across both applications.

How do I install the accumulator myself?

Installation involves depressurizing the fuel system, removing the old accumulator, and bolting the new URO unit in its place using the existing mounting hardware. Reconnect the threaded fuel inlet, prime the system to check pressure, and then start the engine to verify proper operation. Detailed step‑by‑step instructions are included in the product documentation.

What warranty does URO offer on this part?

URO provides a limited warranty that covers any defects in material or workmanship for a specified period after purchase. This warranty, combined with the company’s technical support team, ensures that customers receive assistance and replacement parts if any issues arise under normal use conditions.

Will the accumulator affect my vehicle’s emissions?

The accumulator is designed to meet OE specifications, which include emissions compliance. By maintaining proper fuel pressure, it helps the engine run efficiently, supporting the vehicle’s original emissions performance and helping to meet regulatory standards.