Starter Valve Spring Retainer Bush – Weber 40 IDF / DCNF Carburettors

This starter valve spring retainer bush is a precision genuine replacement component for Weber IDF and DCNF carburettors. It secures the starter (choke) valve spring in place and is essential for proper cold-start function.

Commonly worn or lost during carburettor rebuilds, this part matches No. 74 on the Weber technical exploded view and is suitable for multiple Weber IDF and DCNF models.

Ideal for restorations, rebuild kits, or routine carburettor servicing.

Key Features

• Starter valve spring retainer bush

• Direct replacement for Weber carburettors
  

• Ensures correct starter valve spring location

• Ideal for rebuilds and restorations

Carburettor Compatibility

Fits the following Weber models:

Weber IDF

• 36 IDF

• 40 IDF (1 / 10 / 11 / 13 / 14 / 15 / 22 / 23 / 24 / 25 / 28 / 29 / 42 / 43)

Weber DCNF / DCNFA

• 36 DCNF

• 36 DCNFA

• 40 DCNF

• 42 DCNF

• 44 DCNF

Reference Information

• Exploded View Number: 74

• Spring: Refer to matching spring listing: PAF4760013900

• Clip: Refer to matching clip listing PAF1014000200

• Valve: Refer to matching valve listing: PAF6433000800

(This listing is for the retainer bush only)

PAFClassic 🇬🇧 is an official distributor of WEBER and WEBCON brand products.

All the carburetors we offer are genuine WEBER, manufactured in the production plant.

under license from Magnetti Marelli in Spain.

We have access to over 11,000 references (carburetors and spare parts) as well as the WEBER technical library so that we can provide you with the parts you are looking for for your carburetors.

Make sure you always buy genuine WEBER products like the ones we offer, because copies of these legendary carburetors are now flooding the market.

Often offered at very attractive prices, these copies are often of average manufacturing quality and are not always compatible with genuine WEBER parts (jet sizes for example), therefore not allowing them to be calibrated correctly for your car.