Alfa Romeo 105 Filter Spare Parts for Classic Alfa Romeo Models

Filters protect the engine and fuel system of the Alfa Romeo 105 series and are used across the series in the Giulia, Berlina, GT Bertone and Spider 105/115. These include oil filters, air filters and fuel filters as well as gauzes and seals. As a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models, Alfa-Service carries a wide range of filters and associated parts. Many filters are comparable across the series, but individual versions differ by engine, model year and type of mixture preparation.

Alfa Romeo 105 Filters at a Glance

The four-cylinder Twin Cam engine needs an oil filter for lubrication, an air filter for the intake air and a fuel filter for the fuel supply. In addition there are gauzes, for example in the fuel and oil circuits, as well as matching seals. The basic arrangement is comparable across the series, since the same base engine is used. The specific version of the filters, however, depends on whether the car is fitted with twin carburettors, an early single carburettor or fuel injection.

Filter Part Types

The range is divided into the following part types:

Oil filter, depending on the version as an element or as a spin-on filter
Air filter element, matched to the air filter housing
Fuel filter in the supply path from pump to carburettor or injection
Gauzes and filter elements in the fuel and oil circuits
Seals and sealing rings of the filter housings

Shared Across the Series or Model-Dependent

For the oil filter, the type is decisive: early versions use a filter element in the housing, later versions a spin-on filter. The air filter depends on the carburettor set-up and the air filter housing; cars with twin carburettors, an early single carburettor or injection differ accordingly. The fuel filter depends on the arrangement in the supply path, that is, on whether a pump and carburettor or an injection are supplied. These differences are distributed comparably across the series, which is why the Giulia, Berlina, GT Bertone and Spider 105/115 share many filters, while individual versions differ by engine and model year.

In practice it is worth separating the filters by function: oil filters by oil circuit and type, air filters by housing and carburettor or injection set-up, fuel filters by supply path. Gauzes and seals are chosen to match. This makes it possible to assign the wear and maintenance parts specifically, without confusing carburettor and injection versions. As filters are regularly requested parts, a clear assignment by engine variant is particularly helpful.

Notes on Part Selection

Decisive are the engine (1300, 1600, 1750, 2000), the model year and the type of mixture preparation. For the oil filter, it should be checked whether an element or a spin-on filter is intended. Air and fuel filters depend on the carburettor or injection set-up. Comparing with the existing air filter housing and the supply on the vehicle prevents wrong purchases and ensures that filters, gauzes and seals match. Anyone who first establishes the engine variant can put together the matching filters reliably.

In the interplay of assemblies, each filter has its own task. The oil filter holds back wear particles and contaminants from the lubrication circuit and thus protects the bearings and sliding surfaces of the Twin Cam engine. The air filter cleans the intake air before it reaches the carburettor or injection via the air filter housing, and therefore also influences mixture formation. The fuel filter protects the carburettor or injection from dirt particles coming from the tank and lines. Gauzes complement this function at points such as the pump or tank connection, while seals ensure that the filter housings close cleanly. As these parts are renewed regularly, they are among the most frequently requested items in the range.

When assigning parts across the model years, it should be noted that the 1300, 1600, 1750 and 2000 engines share the same base engine but differ in carburettor set-up and partly in housing design. Cars with two twin-choke carburettors have a different air filter housing from early single-carburettor versions, and injection models differ again. The air filter element must therefore match the respective housing shape. For the oil filter, the change from the element to the spin-on version is the most important feature, which can be read off the existing housing. It is advisable to consider the oil, air and fuel filters together and to select the associated seals and gauzes at the same time, so that all wear items of a service scope can be put together in one step.

As a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models, Alfa-Service places value on a clear assignment of the filters to assembly and model family. The range covers the whole 105 series, so that oil, air and fuel filters as well as gauzes and seals for the Giulia, Berlina, GT Bertone and Spider 105/115 can be found reliably. Since many filters are comparable across the series, a large part can already be determined via the assembly, while air and fuel filters are additionally narrowed down by the carburettor or injection set-up. Anyone who notes the engine, model year and type of mixture preparation can put together the matching filters step by step and consider wear items such as seals and gauzes at the same time.

Categories and Related Guides

The following areas help with classification and selection:

FAQ

Which filters does the 105 series need?

Oil filters, air filters and fuel filters as well as gauzes and matching seals. They are used across the series in the Giulia, Berlina, GT Bertone and Spider 105/115.

Are filters usable across the series?

Many filters are comparable because the same base engine was used. Air and fuel filters do differ, however, by carburettor or injection set-up.

What should be observed with the oil filter?

The type: early versions use a filter element, later ones a spin-on filter.

What determines the air filter?

The air filter housing and the carburettor or injection set-up of the respective car.

Is Alfa-Service a workshop?

No. Alfa-Service is a manufacturer, supplier and spare parts specialist for classic Alfa Romeo models and does not carry out repairs.

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