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Weber Idle Jet, IDF, DCNF

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These idle jets are located just below the top plate on either side of the float bowl on the Weber DCNF and IDF carburetors. Two jets are required per carburetor. Sold individually.

Larger size numbers indicate a richer idle mixture. Most applications work well with a 45 or 50 size, but many Maserati applications were originally fitted with the 60 size. The size of the air inlet hole on the side is fixed, so there are no "F" numbers on these jets.

We also offer the Weber DCNF / IDF Idle Jet Holder separately (Part No. WC-52570.006).

Note the unusual "necked-down" portion near the (unmetered) fuel inlet holes on the side of the jet. Most other Weber models use idle jets with a consistent OD at the side hole location. Fits Weber IDF and DCNF carburetors only. Not for IDA, ICF, DCN, or DCOE series.

Note: Fits genuine Weber (made in Italy or made in Spain) carburetors only! Does not fit most copies, Asian knock-offs, or work-alikes.

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Stock Status

Condition: New
SKU: 52275

Weber IDF Idle Jet, Size 35

$5.99In Stock

Condition: New
SKU: 52276

Weber IDF Idle Jet, Size 40

$5.99In Stock

Condition: New
SKU: 52277

Weber IDF Idle Jet, Size 45

$5.99In Stock

Condition: New
SKU: 44201

Weber IDF Idle Jet, Size 50

$5.99In Stock

Condition: New
SKU: 86646

Weber IDF Idle Jet, Size 55

$5.99In Stock

Condition: New
SKU: 52204

Weber IDF Idle Jet, Size 60

$5.99In Stock

Condition: New
SKU: 81274

Weber IDF Idle Jet, Size 65

$5.99In Stock

Condition: New
SKU: 53221

Weber IDF Idle Jet, Size 70

$5.99In Stock
Related Product Groups
Weber IDF Parts & Jets