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The Best brake line fittings adapters of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best brake line fittings adapters of 2023. Check our ranking below.

2,762 Reviews Scanned

Rank No. #1
4LIFETIMELINES Fitting Assortment, Union, Adapter, 32 SKU, 3/16 Inch and 1/4 Inch Tube Nut
  • Contains all popular tube nuts, unions and adapters for working on and creating any 3/16" and 1/4" outside diameter brake lines for both inverted and bubble flares
  • 32 SKU Brake Line Fitting Assortment
  • Fitting Assortments are designed for specialty and general repair shops. Each assortment contains a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems.
  • Assortments are packaged in shatter-resistant, see-through plastic trays. Locator labels on the inside lid make locating, selecting, and re-filling quick and easy.
  • Lifetime warranty included on all products purchased from 4Lifetimelines
Rank No. #2
4LIFETIMELINES Brake Line Fitting Size Gauge
  • Easily check thread sizes for the most common thread sizes found in automotive braking systems
  • Check thread sizes for: 1/8" NPTF, 1/4" NPTF, 3/8" x 24, 7/16" x 20, 7/16" x 24, 1/2" x 20, 9/16" x 18, 9/16" x 20, 5/8" x 16
  • Each size has a male and female end checker
  • Thread sizes are clearly and permanently stamped innto each gauge
  • Assembled onto a plastic coated wire loop for hanging in convenient locations throughout the shop or garage
Rank No. #3
Allstar Performance ALL50100 3/16" Inverted Flare Brake Line Adapter
  • 3 AN Male to 3/8-24 in Inverted Flare Female
  • Clip-In,
  • Zinc Oxide
  • Steel
  • 2 Pack
SaleRank No. #4
Dorman 788-522 Brake Line Adapter-Bubble Flare-M10-1.0 x 3/16 In. x M12-1.0
  • Many different types available, including long, dual and tube styles
  • Corrosion-resistant brass design for a long service life
  • Also suitable for a broad variety of industrial and commercial uses
  • Available individually and in a variety of piece counts to assist with both small and large projects
  • Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team
SaleRank No. #5
Allstar Performance ALL50120 1/8" NPT to 3/8-24" Adapter Fitting 4 Pack
  • 1/8 in NPT Male to 3/8-24 in Inverted Flare Female
  • Brass
  • 3/16 in Hardline
  • Set of 4
  • Fit type: Vehicle Specific
SaleRank No. #6
A-Team Performance - Brake Line Fittings Kit for Inverted Flares — 19 Fittings for 3/16 Tube and 16 Fittings for 1/4 Tube — Zinc-Coated Adapter, Pack of 35
  • Brake Line Fittings Kit for Inverted Flares — 19 Fittings for 3/16 Tube and 16 Fittings for 1/4 Tube — Zinc-Coated Adapter, Pack of 35
  • For 3/16" tube there are a total of 19 fittings (12 x 3/8"-24, 3 x 7/16"-24, 2 x 1/2"-20 and 2 x 9/16"-18)
  • For 1/4" tube there are 16 fittings included (12 x 7/16"-24, 2 x 1/2"-20 and 2 x 9/16"-18)
  • Zinc Coated for corrosion resistance
  • Many local parts stores rent out flaring tools free
Rank No. #7
The Stop Shop Brake Line Adaptors for Inverted Flare 7/16"-24(Female End) to 3/8"-24(Male End) Pack of 2
  • Pack of 2
  • Female end is 7/16"-24 to 3/8"-24 Male end
  • Brake line adaptors
  • Inverted flare style
Rank No. #8
JEGS Brass Inverted Flare Reducer Adapter | 1/2 “-20 Inverted Flare Male To 3/8 “-24 Inverted Flare Female | Made In USA | For 3/16" Brake Lines | 1 Per Package
  • IDEAL FOR securely joining hard lines
  • MAKES INSTALLING your brakes, vacuum, transmission, and fuel lines easy
  • MADE IN USA with high quality components and assembly
  • ONE PER PACKAGE with other sizes available separately
  • SPECIFICATIONS:1/2 “-20 inverted flare male to 3/8 “-24 inverted flare female, for 3/16" brake lines
SaleRank No. #9
The Stop Shop Metric Brake Line Adaptor for 3/16" Tube, (Female) Inverted Flare, 3/8-24 to (Male) ISO/Bubble Flare, Metric 10mm x 1 (Pack of 2)
  • For 3/16" Tube
  • SAE 3/8-24 Threads(Female) to Metric 10mm x 1 (Male) Adater
  • Inverted Flare to ISO/Bubble Flare
  • Pack of 2
Rank No. #10
Brass Inverted Flare Fitting, Brake Line Adapter, Male Connector, 3/16" Tube OD x 1/8" NPT Male, 5pcs
  • Adapts NPT male end to flared tubing female end.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
  • For use with liquid petroleum (LP) and natural gas, refrigeration, hydraulic brake, trans-mission cooler lines, fuel, oil, air, lines, power steering.
  • Not for use in potable drinking water applications.
  • Working pressure up to 2000psi depending on Tube (O.D),Will withstand burst pressure 5000psi with bundy-weld.
Rank No. #11
The Stop Shop Brake Line Adapter for 3/16" Tube, (Female) Inverted Flare, 3/8-24 to (Male) 1/8" Pipe (Pack of 2)
  • For 3/16" Tube
  • 3/8-24 Threads (standard 3/16" tube fitting size)
  • Adapts down to 1/8" pipe
  • Inverted Flare
SaleRank No. #12
Allstar Performance ALL50125 1/8" NPT - 3/8-24" 90 Degree Adapter Fitting 4 Pack
  • Package Dimensions: 10.668 L x 0.254H x8.382Wcentimeters
  • Country of Origin: United States
  • 3/16 in Hardline
  • Set of 4
  • Fit type: Vehicle Specific
Rank No. #13
Inline Tube Replacement for Brass Adapter Male 3/8"-24 Inverted, Female 7/16"-24 Inverted
  • Solid Brass Brake Line Adapter
  • Male 3/8-24 To A Female 7/16-24
  • Used to Convert 3/16" Brake Line to 1/4" Brake Line Tubing
  • Inverted Flare
Rank No. #14
Allstar ALL50121 1/8" NPT Male to 1/4" Brass Straight Inverted Flare Female Brake Line Adapter Fitting, (Pack of 4)
  • Brake line adapter fitting is made from quality brass
  • Adapts 1/8 npt male to 1/4 inverted flare female and is a straight style fitting
  • Sold in one set of 4 pieces
  • If you don't see what you need, Allstar also carries a large and wide selection of quality fittings for most automotive plumbing needs
Rank No. #15
The Stop Shop Metric Brake Line Adaptor for 3/16" Tube, (Female) Inverted Flare, 3/8-24 to (Male) ISO/Bubble Flare, Metric 12mm x 1 (Pack of 2)
  • For 3/16" Tube
  • SAE 3/8-24 Threads(Female) to Metric 12mm x 1 (Male) Adater
  • Inverted Flare to ISO/Bubble Flare
  • Pack of 2
SaleRank No. #16
Dorman 785434 1/4" x 3/16" Brake Adapter
  • Product Type :Auto Part
  • Package Dimensions :2.590 Cm L X3.606 Cm W X10.16 Cm H
  • Country Of Origin :China
  • Package Quantity :1
Rank No. #17
Allstar ALL50131 1/4" Inverted Flare Union Brass Brake Line Adapter Fitting, (Pack of 4)
  • Brake line adapter fitting is made from quality brass
  • Style is a 1/4 inch inverted flare union and is a straight style fitting
  • Sold in one set of 4 pieces
  • If you don't see what you need, Allstar also carries a large and wide selection of quality fittings for most automotive plumbing needs
Rank No. #18
Brake Line Fittings Adapter, 3/8 Inch-24 IFM to -3 AN Male Steel Brake Adapter Fitting, Connector Brake Line Adapter
  • These adapters work well to adapt master cylinders, wheel cylinders, calipers, and other brake & clutch components to AN 3 flex hoses
  • 3/8"-24 inverted flare male end can attach anywhere that 3/16" steel brake lines are currently used
  • AN 3 end easily connects to SS braided flex hoses
  • CNC machining ensures leak free performance
  • Zinc plated steel to resist corrosion and long life
Rank No. #19
Dorman 785-434D: Brake Adapter - Inverted Flare - 1/4 In. X 3/16 In.
  • Direct replacement
  • Easy installation - no special tools required to install this exhaust hanger
  • Durable materials - quality materials for a long service life
  • Quality tested - has undergone testing to ensure proper fit
  • Trustworthy construction - the kit's bolt and spring are made of hardened steel for durable, long-lasting service life
Rank No. #20
Stainless Steel M10x1.25 Banjo Bolts Brake Line Fittings Adapter M10 Metric Thread Single Banjo Bolt Universal
  • M10*1.25 thread (SIZE: Please refer to the photo shown)
  • Material: SUS304 Stainless Steel, 2 pcs M10 copper washers
  • Works with Banjo Eye Inter Diameter 10.2 mm
  • Brake Caliper Banjo Bolt w/Crush Washers
  • Overall length: 25mm (1 inch)

Last update on 2023-08-09 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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