Sales of spare parts for 2CV and MEHARI

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Sales of spare parts for 2CV and MEHARI
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2CV Citroën Oil breather

Find different models of 2CV oil breather as well as multiple other accessories and spare parts in our engine-cooling section. You will be able to select the most suitable part for your 2CV as the famous Citroën has been equipped with different generations of oil breathers throughout its history.

Find different models of 2CV oil breather as well as multiple other accessories and spare parts in our engine-cooling section. You will be able to select the most suitable part for your 2CV as the famous Citroën has been equipped with different generations of oil breathers throughout its history.

What is the function of the 2CV oil breather?

The breather has two main functions: firstly, it is used to fill the engine with oil. But it also regulates the pressure inside the engine and ensures its proper functioning. When the engine is running, the oil in the engine heats up and some of it turns into steam, causing harmful pressure. As the piston rings are not 100% sealed, combustion in the cylinders can cause some residual water and oil vapours to pass into the crankcase. The oil breather allows these vapours to be evacuated and the crankcase to be depressurised.
The oil breather is an important part of the engine's air supply system. The lower part of the oil breather is attached directly to an outlet in the crankcase and is connected via a hose to the air filter that supplies the carburettor. It thus increases the air pressure in the carburettor and at the same time balances the engine pressure by using an ingenious valve system.

What type of oil breather for each 2CV model?

Two main types of breather were manufactured and fitted to the 2CV and its various derivative models. The oil breather with the outlet to the air filter in the upward position, which corresponds to the various 2CV models as well as the Dyane and Mehari models from before July 1977, and the breather with the outlet to the air filter in the downard position which appeared on the Mehari and Dyane at a later stage.
The 2CV Mehari Club Cassis markets five references from these two types. Two original 2CV oil breathers, for the 602 cc engine, one with the air filter outlet in the upwards position and another with an air filter outlet in the downward position. Our range also includes an old model 2CV oil breather for vehicles with a 425cc engine, which was the 2CV’s engine capacity between 1954 and 1970 for saloons and until 1972 for AZ and AZU vans. We also offer a specific 2CV oil breather for all vehicles equipped with a dynamo and therefore powered at 6 Volt. These are 2CV saloons from before February 1970, vans from before August 1972 for the AZU series A and from before August 1975 for the AZU series B. Finally, a model is also available in our offer, it is an adaptable oil breather with upward outlet benefiting from a more competitive price but a lower quality of manufacture than an original part which remains the reference for all collectors and professionals.
These different models are sold individually or as part of engine start-up kits which also include an air filter cartridge, connecting hoses and an oil pressure switch. The purchase of this kit is strongly recommended when purchasing a 602 engine renovated by our Cassis workshops as it will allow you to obtain an additional 18 months warranty for your engine. This section also includes 2CV oil breather parts and accessories such as gaskets, valves or rubbers as well as various cowling plates.

Which oils should be used to fill the 2CV engine with the breather?

Only oils with a relatively high viscosity are recommended for filling the engine of your favourite Citroën through the breather. These are 15W40 or 20W50 oils, the latter being recommended for use at relatively cold atmospheric temperatures. It is also essential to use multigrade oils of mineral origin and to avoid synthetic oils which are much too fluid and will irreparably cause your vehicle to leak engine oil.
To buy an oil breather as for all other spare parts for your 2CV and its engine, contact the market leader, the 2CV Mehari Club Cassis and do not hesitate to contact us by email or telephone if you do not find all the answers to your questions on this site (in French). Our staff will assist you in your choices as well as in the maintenance of your Citroën.
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All our 2CV ENGINE - COOLING products (18)

OIL BREATHER AND ACCESSORIES

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Adaptables Parts
Best Sellers
Oil breather (top exit)

Oil breather (top exit)

Ref. : 1012510 In stock
Public Price
€124.87 VAT inc.
Club Price -20%
€99.90 VAT inc.
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Adaptables Parts
Oil breather - bottom exit

Oil breather - bottom exit

Ref. : 1012511 In stock
Public Price
€124.87 VAT inc.
Club Price -20%
€99.90 VAT inc.
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MCC Parts
Necessary revision reniflard

Necessary revision reniflard

Ref. : 1012515 In stock
Public Price
€59.88 VAT inc.
Club Price -20%
€47.90 VAT inc.
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Adaptables Parts
Méhari engine service kit with old model air filter
Public Price
€212.38 VAT inc.
Club Price -20%
€169.90 VAT inc.
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MCC Parts
Best Sellers
Air filter breather kit for plastic air filter housing
Public Price
€212.38 VAT inc.
Club Price -20%
€169.90 VAT inc.
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602 parts
Cowling screws (12 pieces)

Cowling screws (12 pieces)

Ref. : 1012222 In stock
Public Price
€3.24 VAT inc.
Club Price -20%
€2.59 VAT inc.
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MCC Parts
Lubrication tube lock clamp - stainless steel
Public Price
€6.12 VAT inc.
Club Price -20%
€4.90 VAT inc.
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MCC Parts
Viton breather valve

Viton breather valve

Ref. : 3012536 In stock
Public Price
€8.49 VAT inc.
Club Price -20%
€6.79 VAT inc.
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602 parts
Cowling cylinder speed nuts (12 pieces)
Public Price
€11.49 VAT inc.
Club Price -20%
€9.19 VAT inc.
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MCC Parts
2cv old model oil breather neck rubber (1963->1970)
Public Price
€12.11 VAT inc.
Club Price -20%
€9.69 VAT inc.
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MCC Parts
2cv old model oil breather neck rubber (1954 ->1963)
Public Price
€12.24 VAT inc.
Club Price -20%
€9.79 VAT inc.
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MCC Parts
Ignition rubber cover - small model

Ignition rubber cover - small model

Ref. : 1012274 In stock
Public Price
€14.88 VAT inc.
Club Price -20%
€11.90 VAT inc.
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Original Parts
Necessary oil pressure valve (ø 11.24mm, lg 16,00mm)
Public Price
€31.25 VAT inc.
Club Price -20%
€25.00 VAT inc.
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602 parts
OIL FILLER NECK 2CV REPAIR KIT COMPLETE

OIL FILLER NECK 2CV REPAIR KIT COMPLETE

Ref. : 3012537 Last item in stock
Public Price
€66.10 VAT inc.
Club Price
€66.10 VAT inc.
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Adaptables Parts
Upper left 602cc cowling cylinder

Upper left 602cc cowling cylinder

Ref. : 1012220 Last item in stock
Public Price
€87.38 VAT inc.
Club Price -20%
€69.90 VAT inc.
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Adaptables Parts
Lower left 602cc cowling cylinder

Lower left 602cc cowling cylinder

Ref. : 1012230 Last item in stock
Public Price
€87.38 VAT inc.
Club Price -20%
€69.90 VAT inc.
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Adaptables Parts
Upper right 602cc cowling cylinder

Upper right 602cc cowling cylinder

Ref. : 1012240 Last item in stock
Public Price
€87.38 VAT inc.
Club Price -20%
€69.90 VAT inc.
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Adaptables Parts
2cv old model oil breather

2cv old model oil breather

Ref. : 3012514 Last item in stock
Public Price
€224.88 VAT inc.
Club Price -20%
€179.90 VAT inc.
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