Best 90 Degree Elbow Fittings in 2026

Daisy
Last Updated: Feb 10, 2026

At a Glance: Our Top Picks for 90 Degree Elbow Fittings

4LIFETIMELINES Brass Brake Line Union - 3/16, 3/8-24 SAE Inverted, 10 per Bag
#TOP1
4Lifetimelines Brass Brake Line Union - 3/16, 3/8-24
9.7
PM SCORE
4LIFETIMELINES Brass Brake Line Union, 3/16 (M10x1.0 Inverted), 10/bag
#TOP2
4Lifetimelines Brass Brake Line Union, 3/16 (M10X1.0 Inverted),
9.7
PM SCORE
4LIFETIMELINES Brake Line Fitting Size Gauge
#TOP3
4Lifetimelines Brake Line Fitting Size Gauge
9.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best 90 Degree Elbow Fittings of 2026

#TOP1

4Lifetimelines Brass Brake Line Union - 3/16, 3/8-24 Sae Inverted, 10 Per Bag

4LIFETIMELINES
LTBU3
7.00 X 4.00 X 0.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Includes 10 brass brake line union 3/16, 3/8-24 Inverted, per bag

Our brake line unions are made with unmatched superior quality

Made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Suitable for brake hydraulic line union

Lifetime warranty included on all products purchased from 4Lifetimelines

#TOP2

4Lifetimelines Brass Brake Line Union, 3/16 (M10X1.0 Inverted), 10/Bag

4LIFETIMELINES
LTBU9
7.00 X 4.00 X 0.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Our 3/16 (M10x1.0 Inverted) brake line unions are made with unmatched superior quality

4LifetimeLines unions are made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Suitable for brake hydraulic line union applications

Compatible with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel replacement lines

4LifetimeLines provides a Lifetime warranty included on all of our products

4Lifetimelines Brake Line Fitting Size Gauge

4LIFETIMELINES
LTFG-UNF
10.00 X 6.00 X 2.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

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

4Lifetimelines 3/16 (4.76Mm) X 25 Ft 316L Marine Grade Stainless Steel Brake Line Tubing Coil

4LIFETIMELINES
LTSC325
12.00 X 12.00 X 0.25 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Seamlessly drawn stainless steel with molybdenum for extra resistance against rust and corrosion

Use this coil to create 3/16 Domestic, European, Japanese, British, and adapter brake lines

Manufactured using technology to prevent kinking and to retain shape while bending

Burst Pressure (15,310 psi), Working Pressure (3,062 psi), Tensile Strength (70,343 psi), Wall Thickness (0.028", 0.70mm)

This brake line meets all SAE JI677 and ASTM A249 specifications

4Lifetimelines Brass Compression Union, 3/16, 10/Bag

4LIFETIMELINES
LTCF316
7.00 X 4.00 X 0.63 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

High quality brass for leak-proof reliability

Our brake line unions are made with unmatched superior quality

Made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Suitable for brake hydraulic line union

Lifetime warranty included on all products purchased from 4Lifetimelines

4Lifetimelines 25 Ft 1/4 Stainless Steel Brake Line Replacement Tubing Coil And Fitting Kit, 16 Fittings Included, Inverted Flare, Sae Thread, 0.028 Inch Wall Thickness

4LIFETIMELINES
LTSC425KIT
20.00 X 14.00 X 2.00 Inches
1.94 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Complete 1/4 brake line replacement kit with stainless steel fittings and coil

316L marine-grade tubing and fittings for highest level protection against rust and corrosion

Perfect for restoring classic cars or for giving your vehicles lines an extra layer of protection

Fittings Included: (10) 1/4 (7/16-24 Inv Long), (2) 1/4 (7/16-24 Inv), (2) 1/4 (9/16-18 Inv), (2) 1/4 (1/2-20 Inv)

Limited Lifetime Warranty through 4LifetimeLines

4Lifetimelines Steel Tube Nut, 3/16 (M10X1.0 Inverted), 10/Bag

4LIFETIMELINES
LTN31
7.00 X 4.00 X 0.50 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Includes 10 Steel Tube Nut, 3/16, M10x1.0 Inverted, per bag

Our brake line tube nuts are made with unmatched superior quality

Plated for corrosion resistance

Works with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines

Lifetime warranty included on all products purchased from 4Lifetimelines

4Lifetimelines Stainless Steel Brake Line Tube Nut, 3/16 (3/8-24 Inverted), Bag Of 10

4LIFETIMELINES
LTN12SS
6.00 X 4.00 X 2.00 Inches
0.11 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Includes 10 fittings per bag

Our brake line tube nuts are made with unmatched superior quality

Works with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines

Lifetime warranty included on all products purchased from 4Lifetimelines

Manufactured from stainless steel, these fittings provide unmatched corrosion resistance and extreme strength

4Lifetimelines 12 Piece 3/16 (3/8-24 Inverted) Brake Line Fittings & Unions (12 Fittings, 8 Fittings, 4 Unions)

4LIFETIMELINES
LTBUFK316
5.00 X 5.00 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Contains the most popular and widely used SAE fittings and unions/couplers to get your job done

Kit features the unions/couplers and fittings listed below:

3/16 (3/8 - 24 Inverted) Steel Fitting, Tube Nut - quantity: 8 (LTN12)

3/16 (3/8 - 24 Inverted) Brass Union, Coupler - quantity: 4 (LTBU3)

Works with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines

4Lifetimelines Stainless Steel Brake Line Tube Nut, 3/16 (7/16-24 Inverted), Bag Of 10

4LIFETIMELINES
LTN11SS
6.00 X 4.00 X 2.00 Inches
0.17 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
4LifetimeLines 9.84

Features

Includes 10 fittings per bag

Our brake line tube nuts are made with unmatched superior quality

Works with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines

Lifetime warranty included on all products purchased from 4Lifetimelines

Manufactured from stainless steel, these fittings provide unmatched corrosion resistance and extreme strength

Top 10 fittings Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
4Lifetimelines 10

Top 10 fittings Brands Pie Chart


We've carried out a comprehensive analysis of 2,620 reviews on fittings, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select fittings priced around $18.29, with top brands including ucreative, legines, konohan, evil energy, shurflo, ledaut, sungator, lokman and sanpaint and hourleey

Our team of expert editors reviewed these high-quality items and handpicked the top 10 fittings for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include ucreative, legines, kangeqhing, evil energy, discount marine source, toyfrank, sungator, lok man and sanpaint and xiny shop .

We are dedicated to assisting our users in finding the right fittings Products based on their needs, saving them considerable time when choosing which fittings to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.