Peugot Boxer Citroen Relay 35 L 2.2 HDI Head Rocker Cylinder Cover 9820991680

The Peugeot Boxer Citroen Jumper 35 2.2 HDI Diesel Valve Cover is an original part from the Cylinder Heads group, designed for 2.2 HDI diesel engines in commercial vehicles. The cover ensures a tight seal for the top of the cylinder head, stable crankcase ventilation, and protection of the valve mechanism from contaminants, which is crucial for engine durability and smooth operation.

Specifications and technical data

• SKU: 9820991680
• Mark: Citroën
• Condition: Used
• OEM Part Number: 9820991680
• Substitutable numbers: 9820991680, 9848586380, 9848586880
• Category: Cylinder Heads & Valve Covers

Purpose and Function in the Engine System

The valve cover in the 2.2 HDI engine plays a key role in sealing the upper part of the power unit. It is responsible for:

• maintaining the seal of the chamber above the cylinder head and limiting oil leaks,
• protecting timing components and valves from dust and moisture,
• stable mounting of manufacturer-specified auxiliary components,
• cooperation with the crankcase ventilation system.

By preserving the factory geometry and mounting points, the cover ensures correct fitment with the cylinder head and other engine accessory components, facilitating servicing and reducing the risk of leaks.

Compatibility and Identification Parameters

The offered valve cover is designed for use in Citroën commercial vehicles with the 2.2 HDI diesel engine, such as the Citroën Jumper 35, as well as structurally similar Peugeot Boxer models. The product belongs to the Cylinder Heads group, meaning it is designed to work with a specific type of cylinder head and timing system used in these power units.

The cover has a dedicated OEM part number and assigned replacement numbers, which facilitates verification of compatibility with a specific engine version. Before purchasing, it is advisable to compare the markings with the service documentation or the existing part to ensure full assembly compatibility.

Characteristics of a Used Part

The valve cover is offered as a used part, which translates to a favorable compromise between cost and functionality. Such a component, if its geometry and mounting points are intact, can be successfully used as a replacement in vehicles subjected to intensive use, typical for the commercial segment.

For valve covers, maintaining the sealing surfaces and ensuring no structural damage that could affect sealing or mounting stability is particularly important. A used component allows for economical engine repair without the need for more expensive solutions, while maintaining the original manufacturer's specifications.

Benefits of Using an Original Valve Cover

Using an original valve cover in the 2.2 HDI engine offers a number of practical advantages:

• Factory Fitment – all mounting points and the shape designed for the specific cylinder head type are preserved,
• consistency with the lubrication and ventilation system,
• easier installation and removal during service work,
• reduced risk of leaks compared to random aftermarket replacements.

For workshops servicing commercial fleets and individual users, this means a more predictable repair outcome and a lower risk of needing to re-intervene in the cylinder head area.

Related Parts from the Citroën Cylinder Heads Group

If you are planning a comprehensive repair or upgrade of the engine area in your Citroën and need other parts from the same group, such as cylinder head bodies, mounting elements, or auxiliary covers, check the available parts in the Citroën Cylinder Heads category.

Additional Technical Support

For major powertrain system work – especially when simultaneously servicing the clutch or other drivetrain components – practical technical guides can be helpful. It is worth familiarizing yourself with material describing diagnostics and component selection, such as the article Clutch and Dual-Mass Flywheel – Diagnostics and Part Selection for the Drivetrain, which facilitates planning comprehensive repairs and optimal part selection, including used parts.