Does the connectors that come with this product except single or double flare?

I installed this product on a 1968 Pontiac GTO using a double flair. However, you can still use a single flare if thats all you have. Double flares are better becuase it leaves more tubing material at the end for the fittings to clamp when tightened together. A single flare will work fine as long as its a perfect flare. From experience with double flares they dont need to be perfect in order for them not to leak. For example with a double flare; you might have one end .001"-.003'' shorter than the other like a lopsided pyramid and it will probably still seal just fine. But when you do that on a single flare, theres a good chance your fitting will crack or split the end of the single flare thats under the most stress. Like if you do a lopside pyramid on a single flare, its probably gonna leak beacuse it either cracked in the fitting or theres just not enough filler metal to create a tight seal between the fittings. Hope this helps when working on tubing...

My fittings are metric 10mm, what will I need to make this work?this is s.a.e right?

These have a 1/8-27 NPT but include adapters to go to 3/16-24 Female. You will need an adapter to go from 1/8-27 NPT to 10mm female or an adapter to go from 3/16-24 male to 10mm female.

What is the flow coefficient of the vale? (The Cv value. It's unbelievable this is not in the description.)

Not sure what that means but I believe it reduces flow up to 50% used it on a jeep tj with axle swaps and have had zero issues

is 8419 disc on disc ?

You would have to elaborate more

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

Wilwood 260-8419 Adjustable Proportioning Valve Knob,Silver

Product ID: 11182178

Details

Brand
Wilwood
Exterior Finish
Painted
Inlet Connection Size
0.38 inches
Inlet Connection Type
National Pipe
Item dimensions L x W x H
8 x 4.5 x 1.5
Material
Silver

🔩1/8-27 NPT standard threaded ports

⚙️100-1000 PSI adjustable pressure

🛠️5.2 oz lightweight forged billet design

€ 85.45

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered 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 Portugal.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

⚡ Master your brake balance like a pro, feel the control in every stop!

PROVEN PERFORMANCE - Top-rated (#4 in replacement valves) with 4.6-star reviews—trusted by pros.
WIDE ADJUSTMENT RANGE - Pressure tuning from 100 to 1000 PSI for ultimate brake customization.
LIGHTWEIGHT DURABILITY - Compact forged billet design weighs just 5.2 ounces—strength without bulk.
UNIVERSAL COMPATIBILITY - Includes fittings for most domestic 3/16” hard brake lines—plug & play ready.
PRECISION PRESSURE CONTROL - Fine-thread knob lets you dial braking balance with surgical accuracy.

The Wilwood 260-8419 Adjustable Proportioning Valve Knob offers precise front-to-rear brake pressure tuning from 100 to 1000 PSI. Crafted from a lightweight forged billet design weighing only 5.2 ounces, it features standard 1/8-27 NPT threaded ports and includes fittings compatible with most domestic brake lines. Highly rated and widely trusted, this valve delivers maximum pressure reduction of 57%, making it a must-have upgrade for serious brake system customization.

Specifications

ASIN	B002G37IEA
Best Sellers Rank	#25,907 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Brake Proportioning Valves
Brand Name	Wilwood
Connector Type	Threaded
Customer Reviews	4.6 4.6 out of 5 stars (365)
Exterior Finish	Painted
Global Trade Identification Number	00889545067934
Included Components	Proportioning Valve
Inlet Connection Size	0.38 inches
Inlet Connection Type	National Pipe Tapered
Item Dimensions	8 x 4.5 x 1.5 inches
Item Type Name	Proportioning Valve
Item Weight	7.36 ounces
Manufacturer	Wilwood
Manufacturer Part Number	2608419
Manufacturer Warranty Description	1 year
Material Type	Silver
Maximum Pressure	1000 psi
Model Number	260-8419
Number of Items	1
Number of Packs	1
Number of Pieces	1
Number of Ports	2
Outlet Connection Size	0.13 inches
Outlet Connection Type	NPT
Part Interchange Info	260-8419
Size	Stock
Thread Size	Fine
Thread Type	Fine
UPC	889545067934
Unit Count	1 Count
Valve Type	Proportioning Valve

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

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks 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.