NOTICE

Please read this notice and only continue if you are willing to abide by our updated backorder acquisition and fulfillment terms of service.


Supply-chain disruptions have hampered our ability to acquire/restock items reliably. Additionally, a lack of backorder ETA information is a frustrating "new normal" for our hobby. As a result, we have had to change our BACKORDER ACQUISITION TERMS OF SERVICE. We are now only fulfilling order requests for items that are able to be acquired within 3 weeks IF we are able to get them. Longer than 3 weeks backorders WILL BE AUTOMATICALLY CANCELLED. Made-to-order, Special-Order, and Direct-shipped items may take longer than 30 days, and will NOT be auto-canceled, and will be fulfilled in the longer, as-advertised timeframe.


On the next page, you will be prompted to select a BACKORDER HANDLING INSTRUCTION for your Order Request. In every case, you are NOT CHARGED for out-of-stock items (we ONLY charge for items that are available to be shipped in a timely or reasonably reliable timeframe). If you select the "3 week backorder fulfillment option", you can email to cancel un-shipped/un-paid items at any time as long as they are not direct-shipped, special order or made/machined-to-order.

Currently our response time to emails is slow (we are severely short-staffed). Please trust that even when we can't reply to your email promptly, we are continuing to work to fulfill your Order Request as best we can, and we will contact you once we have any new information that is not already posted in your online Order Progress/History area in your customer account.


Please only continue if you are prepared to be PATIENT. Some of the items in your cart might be out-of-stock, and if that is the case, within a day or two we will post itemized stock status information to your account and/or email you to let you know. We appreciate your continued support and understanding.



  VW Parts Catalog > Carbs & Fuel System >

Idle Jets for Weber DFEV, DFAV (Progressive) & 40 IDA 3bbl, 74403 (Sold per EACH)
Idle Jet for Weber DFEV, DFAV (Progressive) & 40 IDA 3bbl, 74403


 
Idle Jet for Weber DFEV, DFAV (Progressive) & 40 IDA 3bbl, 74403 are ORIGINAL WEBER JETS FROM ITALY, we do not carry Chinese reproductions (whch do not flow properly!). These are all genuine Weber jets which have been flow tested at the factory! Typically you'll need a 45-50 primary idle jet, and a 55-60 secondary idle jet.
Price: $8.00
Item eligible for Econo/1st Class Mail shipment, min ship charge applies

: 74403

Select Jet Size



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Overview
 
Idle Jet for Weber DFEV, DFAV (Progressive) & 40 IDA 3bbl, 74403 are ORIGINAL WEBER JETS FROM ITALY, we do not carry Chinese reproductions (whch do not flow properly!). These are all genuine Weber jets which have been flow tested at the factory!
Item Features
We are aware that we are a little more expensive than other suppliers of Weber jets, but here is why you should use Aircooled.Net. First, we only sell genuine Weber jets from Italy! Secondly, we will tell you the correct jet sizes to minimize your jet expense, and your valuable time tuning! Other shops that aren't proficient at Weber Tuning will be happy to sell you jets at $4 ea, and you'll wind up with 6 sizes (24 jets) that you don't need! That makes no sense! By buying from us you will not spend more than you have to, our experience will keep your costs down, while providing the highest quality parts.

With that out of the way, we recommend the following idle jet sizes for sea level driving for the Weber Progressive

Primary/Secondary

45/60 Idle

125-130/170-180

160/180

Drop the size "1" for every 1k' rise above sea level. So if you have a Progressive in Denver (5k') you'd need Pri/Sec idle jets of 40/55, but the same carbs at sea level would use 45-60.

Despite what you have read in "other" places, these sizes will result in the best running (cool) and stelr MPG. Use the main circuit for your power tuning! Read our tuning guide for further tuning tips, you'll save a fortune by buying the jets you need ONCE without guesswork!


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