Bosch Fuel Injection Accumulator 4958158051 Diesel Gasoline

Description

Product Overview

Experience the precision engineering of the Bosch fuel injection accumulator, a component crafted to meet the exacting standards of modern diesel and gasoline powertrains. Constructed from high‑grade aluminum alloy and reinforced with corrosion‑resistant coatings, this accumulator delivers consistent fuel pressure, reducing pulsation and ensuring smooth engine operation across a wide range of temperatures. The part carries the OEM numbers 0004760121, 113978, 7211491012, A0004760121, and UR21822, confirming its compatibility with a broad selection of vehicle makes and models. With a net weight of just 0.74 kilograms (1.68 lb) and compact dimensions of 1.98 × 1.98 × 2.57 inches, it fits snugly within the fuel system housing, minimizing the need for extensive modifications during installation. The accumulator’s internal diaphragm is engineered for durability, resisting wear and tear caused by high‑frequency fuel pulsations, while the external sealing rings prevent leaks and maintain system integrity over the life of the vehicle. Designed as a vehicle‑specific, direct‑fit replacement, it eliminates the guesswork often associated with aftermarket parts, providing a seamless swap that restores original performance levels without compromising reliability.

Usage

Ideal for both light‑duty passenger cars and heavier commercial vehicles, this Bosch accumulator excels in environments where fuel delivery consistency is critical. Whether the engine is operating under steady highway cruising, demanding off‑road conditions, or frequent stop‑and‑go city traffic, the part maintains optimal pressure to support efficient combustion and reduced emissions. Mechanics and DIY enthusiasts alike will appreciate the straightforward installation process: simply disconnect the fuel lines, remove the old unit, and secure the new accumulator using the original mounting hardware. No core charge is required, and the part’s design eliminates the need for additional adapters or custom brackets. The accumulator is also well‑suited for performance upgrades, such as turbocharging or fuel‑system tuning, where precise fuel metering is essential to achieve desired power gains without risking fuel starvation or over‑pressurization. Its robust construction ensures longevity even in high‑temperature climates, making it a reliable choice for vehicles operating in desert regions or for fleets that travel long distances daily.

Why Choose Us

Choosing the Bosch fuel injection accumulator means selecting a component backed by decades of automotive expertise and a global reputation for quality. Bosch’s rigorous testing protocols include vibration, thermal cycling, and pressure endurance assessments, guaranteeing that each unit meets or exceeds original equipment specifications. Our distribution network provides rapid shipping, and every purchase is supported by a dedicated customer service team ready to assist with fitment questions, installation guidance, and warranty claims. In addition, the part is covered by a comprehensive warranty that protects against manufacturing defects, giving you peace of mind and confidence in the durability of your investment. We also offer detailed technical documentation, including installation diagrams and torque specifications, to help you complete the replacement quickly and correctly. By partnering with trusted retailers, we ensure that the product you receive is authentic, free from counterfeit concerns, and fully compliant with industry standards.

Key Features

• High‑grade aluminum alloy construction for lightweight strength and corrosion resistance.
• Vehicle‑specific fit eliminates the need for modifications or additional hardware.
• Durable internal diaphragm maintains consistent fuel pressure for smooth engine performance.
• Compact size and low weight simplify installation and reduce overall vehicle weight.
• Backed by Bosch’s warranty and supported by expert customer service for peace of mind.

FAQ

Is this accumulator compatible with my specific vehicle model?

Yes. The part matches OEM numbers 0004760121, 113978, 7211491012, A0004760121, and UR21822, covering a wide range of makes and models. You can verify compatibility by checking your vehicle’s service manual or entering the part number into our online fit‑guide tool.

Do I need any special tools to install the accumulator?

No special tools are required. Standard hand tools such as a socket set and torque wrench are sufficient. The accumulator uses the original mounting points and fuel line connections, making the replacement process straightforward for both professionals and DIY enthusiasts.

What warranty does Bosch provide for this part?

The accumulator comes with a limited warranty that covers manufacturing defects for a period of one year from the date of purchase. If any issues arise within this timeframe, Bosch will replace the part at no additional cost, provided it has been installed according to the supplied instructions.

Can this part be used in performance‑tuned engines?

Absolutely. The accumulator’s design ensures stable fuel pressure even under increased flow rates associated with turbocharged or tuned engines. It is a reliable choice for enthusiasts seeking to maintain fuel system integrity while extracting additional power.

Is a core charge required when replacing the accumulator?

No. This Bosch fuel accumulator is sold as a single quantity with no core charge, allowing you to complete the replacement without the need to return the old unit for credit.