What is the diamater of wire that can be passed?

14 or 12 gauge wire is what it is designed for.

How big a hole is required?

The hole needs to be 5/8. I usually use a variable bit in order to keep the hole tight as possible.

Does this hold up to e85?

I've been using it for E85 for 1.5 years and no issues yet.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

CFD-504 CFD System- 2 Wire Standard Wire-Thru Bulkhead

Product ID: 14241659

Details

Brand
ATL
Exterior Finish
Plastic
Item dimensions L x W x H
4 x 4 x 1
Material
Metal
Vehicle Service Type
Vehicle

⛽Fuel & chemical resistant

🔌Supports 12 or 14 gauge wire

🔧Compact 2x1 inch size

€ 89.39

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

⛽ Plug into performance with leak-proof confidence!

LEAK FREE SEAL - Precision bulkhead design guarantees a secure, leak-proof fuel tank connection.
FUEL GRADE DURABILITY - Engineered to resist harsh racing fuels including E85, ensuring longevity.
DUAL GAUGE COMPATIBILITY - Seamlessly connects 12 or 14 gauge wires for versatile installation.
TRUSTED PERFORMANCE PART - Highly rated and OEM equivalent for reliable upgrades in fuel systems.
SPACE SAVING INSTALLATION - Compact 2x1 inch footprint with reversible fitting for tight clearance needs.

The ATL CFD-504 is a compact, durable 2-wire bulkhead connector designed for fuel tanks and recreational vehicles. Compatible with 12 or 14 gauge wires, it offers a leak-free seal resistant to racing fuels like E85. Its reversible fitting and robust construction make it a trusted performance upgrade for fuel system installations.

Specifications

ASIN	B0057Y4BEK
Best Sellers Rank	#1,520,523 in Automotive ( See Top 100 in Automotive ) #2,684 in Automotive Replacement Fuel System Fittings
Brand	ATL
Brand Name	ATL
Compatible with Vehicle Type	Vehicle
Customer Reviews	4.5 out of 5 stars 56 Reviews
Exterior Finish	Plastic
Fuel Type	Gasoline
Item Dimensions	4 x 4 x 1 inches
Item dimensions L x W x H	4 x 4 x 1 inches
Manufacturer Part Number	CFD-504
Material	Metal
Material Type	Metal
Model Number	CFD-504
Number of Items	1
OEM Equivalent Part Number	CFD-504
Product Grade	Performance Part
Unit Count	1 Count
Vehicle Service Type	Vehicle

Reviews

T**Y

well made

The wire I am using is 0.139" outer diameter and it is sealing with a slight head of fuel above it. The material seems to be a nylon because I inadvertently hit it a few times installing the tank and it held up fine. The sealing o-ring is fairly small so you will probably need a selection of stepped bits to find the right size hole to drill. As a side note I'm using mil spec PTFE 10 awg wire for its fuel resistance. Its not the perfect choice because fuel can seep through it like a siphon tube

7.06.2020

G**A

Good product

Well made

7.02.2020

J**S

good item

works great

18.10.2019

J**E

Not fuel safe. Do your own research. I'm returning.

This is a Hummel HSK-K NPT (1.209.3801.71, I think). It is not fuel safe. I am returning this part. The gland seal and o-ring are rubber and the body is Polyamide V0 (a flame retardant plastic). Neither of which are safe for fuel. Hummel does sell a PVDF / FKM (Viton) part which is fuel safe. If you want Hummel, go for that one.

22.11.2025

A**R

Good experience

Great item just as described

9.10.2018

J**R

Awesome

Awesome product used it to install larger wires through my fuel pump hanger will definitely buy again if I need to do another pump. Dont mind the dirty hands lol

29.11.2019

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.