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🚗 Upgrade your brake game with the ultimate fitting kit—because safety never goes out of style!
The 4LIFETIMELINES Premium Brake Line Fitting Kit offers a comprehensive 32-SKU assortment of unions, adapters, and tube nuts designed for 3/16" and 1/4" brake lines. Packaged in durable, organized trays, it features high-quality copper, nickel, and stainless steel components with brass and nickel finishes. Perfect for professional repair shops, this kit ensures robust, secure brake line repairs backed by a lifetime warranty for unmatched reliability.










| Size | 3/16" & 1/4" |
| Material | Copper, Nickel, Stainless Steel |
| Brand | 4LIFETIMELINES |
| Color | Multicolor |
| Item dimensions L x W x H | 12.5 x 18.25 x 3 inches |
| Connector Type | Union |
| Thread Size | 1/4 |
| Exterior Finish | Brass, Nickel |
| Thread Type | BIT |
| Item Weight | 6.33 Pounds |
| Number of Pieces | 136 |
| Manufacturer | 4LifetimeLines |
| UPC | 811701030674 |
| Part Number | LTA316140 |
| Item Weight | 6.33 pounds |
| Product Dimensions | 12.5 x 18.25 x 3 inches |
| Item model number | LTA316140 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
C**I
Valuable kit for any garage
I am very impressed with this kit. It has a wide variety of fittings as well a metric and standard sizing fittings making it easy to identify the sizes existing parts.
R**S
Good Quality
Has a lot of the fittings we use with good quality. We just use our local parts store to replenish what we use.
G**T
Fittings
Great assortment of fittings
A**6
Good set
Good set the case is plastic so make sure to not drop
L**7
A Decent Kit
It's a big box with room for more. Nice to have all my brake fittings in one place, to see at a glance if I need to reorder any parts. If you work on vehicles often, especially here in the Rust Belt of New England, you need this kit.
A**R
Good assortment of fittings
The media could not be loaded. Looks to be a good assortment of metric ( bubble flare) tube nuts, bubble to inverted flare adapters, along with couplers for bubble and inverted fittings. As a bonus there's even a few inverted flare tube nuts to aid in making repairs without needing to search around for SAE fittings that work with the couplers and adapters. It's all in one box with extra room to add more pieces later if needed.
M**.
Great kit, little pricey but cheaper than a shop!
If you have the double flare tool and some skill, you can save a ton of money. Looks great, used a few so far, works perfect with the ni-cop lines. Many bins have just one fitting and other sizes have several, just fyi.Already paid for its self.
P**W
Sad. Nice product but no care given for shipping.
Poor packaging with hardly any wraping to prevent item from moving in the box. Received damaged. Shipping box wasn't in bad condition. Just no protection of item in box. Contacted manufacturer about sending a replacment case. Manufacturer only option was to return product and reorder.
Trustpilot
1 day ago
1 month ago