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Weber 40 DCOE Front View
  • Weber 40 DCOE Front View
  • Weber 40 DCOE side view
  • Weber 40 DCOE Rear View
  • Weber Carburettor Stamping
  • Weber 40 DCOE Front View
  • Weber 40 DCOE side view
  • Weber 40 DCOE Rear View
  • Weber Carburettor Stamping
40 DCOE 151 - Genuine Weber Carburettor

40 DCOE 151 - Genuine Weber Carburettor

$850.00

The Weber 40 DCOE 151 is one of the most legendary performance carburettors ever produced. With its side-draught design and fully modular jetting system, the 40 DCOE allows precise tuning – making it ideal for road or track,  4- and 6-cylinder engines where a 45 DCOE would be too large.

Built with Weber’s signature durability and engineering precision, the 40 DCOE remains the preferred choice for performance restorations, vintage motorsport, and anyone wanting to unlock the full character of their engine.

Key Features:

  • High-flow side-draught design for strong, responsive performance
  • For single or multi-carb arrangements
  • Fully tunable with interchangeable jets, chokes, emulsion tubes, and venturis
  • Smooth throttle response from low RPM through to the top end
  • Durable, proven Weber construction built for long-term reliability
  • Perfect for twin- or multi-carb setups on engines requiring balanced airflow

The greatest feature of this carburettor is its ease of turnability - with most setting accessible whilst installed.

Jetting Calibration:

As standard these carburettors are supplied with the below factory calibrations. We can re-jet to any specification you require, just send us a message when purchasing. We have a catalogue of settings for a range of engines - so if you need guidance please reach-out. 

Factory calibrations: 

 Venturi 30mm
Aux Venturi 4.5
Main Jet   115
Air Corrector 200
Emulsion Tube F11
Idle Jet 45F9
Needle Valve 175
Pump Jet 40
Pump Spill 50
Genuine & Authentic Weber Product

This is a genuine Weber carburettor manufactured in Europe under licence using original Weber specifications.

West Coast Carburettor is an independent retailer. We are not the manufacturer of Weber products and are not affiliated with, endorsed by, or acting on behalf of Weber or its parent companies unless explicitly stated.
Shipping

All orders are shipped from our Western Australian warehouse within 1–3 business days, with most orders sent the same-day.

Shipments are sent via Auspost Post Parcel (2-6 business days) and Express Post Parcel (1-3 business days) services, and include insurance and signature on delivery.

What is the shipping policy?

We aim to process and dispatch all orders as quickly as possible. All standard orders are shipped within 3 business days, with most orders leaving our warehouse the same-day.

All shipments are sent via Auspost Post Parcel (2-6 business days) and Express Post Parcel (1-3 business days) services, and include insurance and signature on delivery for your peace of mind. Once dispatched, you will receive a shipping confirmation email with tracking details.

If, for any reason, there is an unexpected delay with your order after it has been placed, we will contact you directly to discuss available options, including alternative arrangements or a full refund.

Same & Next Day Collection is available in Scarborough, WA upon request.

If you have any questions regarding shipping or your order status, our team is always here to help
Return policy

We have a 7-day returns policy (re-stocking fee may apply) and will exchange any products which are faulty upon receipt.

What is the return policy?

We have a 7-day return policy, which means you have 7 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Returned item due to a 'change of mind' can be credited towards alternate order otherwise they are subject to a 20% restocking fee.

To start a return, you can contact us at sales@westcoastcarbs.com . 

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at sales@westcoastcarbs.com.

Unfortunately, we cannot accept returns on sale items or gift cards.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item it can be return for either replacement or repair.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at westcoastcarbs@gmail.com.

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Can't find what you're after?

At WCC we source and supply 100s of carbs & conversion kits, specially engineered and tuned for specific engines - many of which are not listed

With bi-weekly deliveries out of Europe we can source authentic Weber carburettors & calibrated parts at a time that suits you

Please use the form below to let us know your exact needs and we will be in touch: