How to properly replace brake lines to ensure system integrity on GMC Acadia?

Use double-walled steel brake pipe when replacing pipes to avoid brake system failure and stabilize the routing by using original position fasteners. When sectioning brake pipes arcuate a replacement pipe with matching dimensions and adopt correct fittings that parallel the original blueprint. The first step involves examining the portion of brake pipe that requires treatment then freeing it from any retainers when possible before identifying an area for pipe sectioning at least one inch wider than the size of the J 45405 Pipe Flaring Tool Kit. Determine the replacement pipe length for the area to be fixed and include flare extension measurements according to the following specifications: 6.35mm(0.250in)for4.76mm(3/16in)dia-meterpipe, 9.50mm(0.374in)for6.35mm(1/4in)dia-meterpipe, 12.67mm(0.499in)for7.94mm(5/16in)dia-meterpipe. The required length for flaring measures 6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe and 9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe and 12.67 mm (0.499 in) for 7.94 mm (5/16 in) diameter pipe. Lay the brake pipe straight on the J 45405 pipe cutter to achieve the precise length before extracting the piece and picking the suitable brake pipe alongside tube nuts. Use the proper blade on the J 45405 coating stripping tool to remove nylon coating from brake pipe ends while protecting the metal surface. Use the de-burring tool from the J 45405 to chamfer both external and internal pipe diameters before adding the tube nuts to clean off all materials from this area and from the tool. Introduce the prepared pipe end through the dies until it reaches the fully seated position while using the appropriate die set on the J 45405. Use the J 45405 lever to form the pipe following selection of the proper forming mandrel after screwing down the clamping mechanism. Perform this process one more time by choosing the finishing cone. Examine the flare's shape and diameter after you take out the dies: For pipe diameters of 4.76 mm (3/16 in) the flared end should be between 6.74-7.10 mm (0.265-0.279 in) and 8.57-9.27 mm (0.344-0.358 in) for 6.35 mm (1/4 in) ends and 10.42-10.79 mm (0.410-0.425 in) for 7.94 mm (5/16 in) ends. New brake pipe installation requires using a brake pipe bending tool to shape it before inserting the pipe with appropriate unions into retainers and running hydraulic system bleed procedures then inspecting finisher flares for leaks under engine operation with activated brakes.

How to replace the front brake line on GMC Sierra 1500?

Before you begin work raise and support your vehicle before taking off the wheel assembly. Cover open brake pipe connectors with plug caps and wipe dirt from brake hose and pipe fittings to shield the system from fluid loss and contamination. Secure the brake pipe fitting with a back up wrench before disconnecting the crake hose from it. Cover the brake pipe fitting end with a hose cap or plug. Take off the brake hose retaining clip from the mounting bracket and after that remove the brake hose bolt with bracket from the upper Control Arm and Steering Knuckle. Take out the brake hose from the caliper by removing both copper brake hose gaskets and the brake hose to caliper bolt from the brake caliper. The installation involves using 2 new copper gaskets and fixing them with the brake hose bolt. Position the brake hose on top of the caliper bolt then place two new washers before tightening them to 40 nm (30 ft. Lbs.). Rephrase the following sentence. Keep the following points direct and flowing while installing the brake hose against suspension components. Attach brake hose parts to Steering Knuckle and upper Control Arm by tightening bolts to 9 nm (80 inch lbs.). Restore the brake hose clamp before placing the rubber plug aside and join the brake hose fitting to its pipe through a back up wrench while preventing twist or contact from bracket or pipe segments. Secure the fitting nut with 25 nm torque (18 ft. Lbs.). Let out hydraulic brake fluid and set back the tire assembly while watching if the brake hose hits suspension and wheel components during sharp turns; repair as needed before dropping the vehicle down.

OEM GMC Brake Line

Brake Hose

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254 Brake Lines found

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GMC Flex Hose, Front Driver Side Part Number: 84244993
$35.86 MSRP: $69.60
You Save: $33.74 (49%)
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Front Driver Side
- Replaced by: 85849965
- Replaces: 23153329
Fits the following GMC Models:
- Canyon | 2015-2020 | All Terrain, Base, Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
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GMC Flex Hose Part Number: 85123753
$67.83 MSRP: $121.12
You Save: $53.29 (44%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Hydraulic Brake
- Replaces: 84952570
Fits the following GMC Models:
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Flex Hose Part Number: 84952574
$28.00 MSRP: $50.00
You Save: $22.00 (44%)
ADD TO CART
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Rear
Fits the following GMC Models:
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Flex Hose Part Number: 85580039
$15.21 MSRP: $27.15
You Save: $11.94 (44%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose, Hydraulic Brake; Brake Hose
Fits the following GMC Models:
- Canyon | 2023 | Denali, Elevation | 4 Cyl 2.7 L GAS
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GMC Flex Hose, Passenger Side Part Number: 84697256
$18.32 MSRP: $32.71
You Save: $14.39 (44%)
ADD TO CART
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Passenger Side
- Replaces: 23390430
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Flex Hose, Rear Part Number: 23391055
$32.82 MSRP: $61.26
You Save: $28.44 (47%)
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Rear Brake Crossover; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Rear
- Replaced by: 85645978
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Flex Hose, Front Driver Side Part Number: 84718872
$11.05 MSRP: $19.73
You Save: $8.68 (44%)
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Front Driver Side
- Replaced by: 85750649
Fits the following GMC Models:
- Canyon | 2021-2022 | AT4, Denali, Elevation, Elevation Standard | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
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GMC Flex Hose, Front Passenger Side Part Number: 84718873
$28.29 MSRP: $50.53
You Save: $22.24 (45%)
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Front Passenger Side
- Replaced by: 85750650
Fits the following GMC Models:
- Canyon | 2021-2022 | AT4, Denali, Elevation, Elevation Standard | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
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GMC Flex Hose, Front Driver Side Part Number: 85539474
$24.81 MSRP: $44.30
You Save: $19.49 (44%)
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Brake Hose; Hose, Hydraulic Brake
- Position: Front Driver Side
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
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GMC Flex Hose, Front Passenger Side Part Number: 84398706
$13.66 MSRP: $25.67
You Save: $12.01 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Front Passenger Side
Fits the following GMC Models:
- Terrain | 2020-2021 | Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
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GMC Flex Hose, Front Passenger Side Part Number: 19173263
$22.02 MSRP: $39.32
You Save: $17.30 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly, Front Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Front Passenger Side
- Replaces: 22111884, 18032005
Fits the following GMC Models:
- C3500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- G2500 | 1984 | Rally, Vandura | 6 Cyl 4.1 L GAS, 8 Cyl 6.2 L DIESEL
- G3500 | 1984-1996 | Magnavan, Rally, Rally Camper Special, Rally Custom, Rally STX, Vandura, Vandura Special | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1988-1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- P3500 | 1985-1996 | Base, Value Van | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Flex Hose, Passenger Side Part Number: 84621215
$16.33 MSRP: $29.59
You Save: $13.26 (45%)
ADD TO CART
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Passenger Side
- Replaces: 84244689, 84095116
Fits the following GMC Models:
- Acadia | 2017-2019 | Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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GMC Flex Hose, Front Passenger Side Part Number: 84260050
$36.31 MSRP: $68.20
You Save: $31.89 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose Assembly-Front Brake; Hydraulic Hose; Brake Hose; Brake Line; Hose, Hydraulic Brake
- Position: Front Passenger Side
- Replaces: 25882060
Fits the following GMC Models:
- Sierra 2500 HD | 2011-2019 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2011-2019 | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
View related parts
GMC Flex Hose Part Number: 25924725
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Rear
Fits the following GMC Models:
- Sierra 2500 HD | 2007-2008 | SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2007-2008 | SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Flex Hose, Passenger Side Part Number: 25923716
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Passenger Side
- Replaces: 15914431
Fits the following GMC Models:
- Sierra 1500 | 2007-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
View related parts
GMC Brake Hose, Passenger Side Part Number: 20837350
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Line
- Position: Passenger Side
- Replaces: 15902883
Fits the following GMC Models:
- Sierra 3500 HD | 2007-2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
View related parts
GMC Flex Hose, Driver Side Part Number: 25923717
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Driver Side
- Replaces: 15914432
Fits the following GMC Models:
- Sierra 1500 | 2007-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
View related parts
GMC Brake Hose, Driver Side Part Number: 25923709
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Line
- Position: Driver Side
- Replaces: 15902882
Fits the following GMC Models:
- Sierra 3500 HD | 2007-2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
View related parts
GMC Flex Hose Part Number: 25923724
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Rear
- Replaces: 15914428
Fits the following GMC Models:
- Sierra 1500 | 2007-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Sierra 2500 HD | 2007-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2007-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
View More
View related parts
GMC Flex Hose Part Number: 25923721
Product Specifications
- Other Name: Hose, Hydraulic Brake; Hydraulic Hose; Brake Hose; Brake Line
- Position: Rear
Fits the following GMC Models:
- Sierra 1500 | 2007-2013 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Sierra 2500 HD | 2007-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2007-2013 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Brake Line

Choose OEM Brake Line, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsGiant.com, you'll find it easy to get top-quality OEM GMC Brake Line. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Brake Line Parts and Q&A

Flex Hose, Front Driver Side
19366774
Q: How to properly replace brake lines to ensure system integrity on GMC Acadia?
A:
Use double-walled steel brake pipe when replacing pipes to avoid brake system failure and stabilize the routing by using original position fasteners. When sectioning brake pipes arcuate a replacement pipe with matching dimensions and adopt correct fittings that parallel the original blueprint. The first step involves examining the portion of brake pipe that requires treatment then freeing it from any retainers when possible before identifying an area for pipe sectioning at least one inch wider than the size of the J 45405 Pipe Flaring Tool Kit. Determine the replacement pipe length for the area to be fixed and include flare extension measurements according to the following specifications: 6.35mm(0.250in)for4.76mm(3/16in)dia-meterpipe, 9.50mm(0.374in)for6.35mm(1/4in)dia-meterpipe, 12.67mm(0.499in)for7.94mm(5/16in)dia-meterpipe. The required length for flaring measures 6.35 mm (0.250 in) for 4.76 mm (3/16 in) diameter pipe and 9.50 mm (0.374 in) for 6.35 mm (1/4 in) diameter pipe and 12.67 mm (0.499 in) for 7.94 mm (5/16 in) diameter pipe. Lay the brake pipe straight on the J 45405 pipe cutter to achieve the precise length before extracting the piece and picking the suitable brake pipe alongside tube nuts. Use the proper blade on the J 45405 coating stripping tool to remove nylon coating from brake pipe ends while protecting the metal surface. Use the de-burring tool from the J 45405 to chamfer both external and internal pipe diameters before adding the tube nuts to clean off all materials from this area and from the tool. Introduce the prepared pipe end through the dies until it reaches the fully seated position while using the appropriate die set on the J 45405. Use the J 45405 lever to form the pipe following selection of the proper forming mandrel after screwing down the clamping mechanism. Perform this process one more time by choosing the finishing cone. Examine the flare's shape and diameter after you take out the dies: For pipe diameters of 4.76 mm (3/16 in) the flared end should be between 6.74-7.10 mm (0.265-0.279 in) and 8.57-9.27 mm (0.344-0.358 in) for 6.35 mm (1/4 in) ends and 10.42-10.79 mm (0.410-0.425 in) for 7.94 mm (5/16 in) ends. New brake pipe installation requires using a brake pipe bending tool to shape it before inserting the pipe with appropriate unions into retainers and running hydraulic system bleed procedures then inspecting finisher flares for leaks under engine operation with activated brakes.
Flex Hose, Front Driver Side
19366683
Q: How to replace the front brake line on GMC Sierra 1500?
A:
Before you begin work raise and support your vehicle before taking off the wheel assembly. Cover open brake pipe connectors with plug caps and wipe dirt from brake hose and pipe fittings to shield the system from fluid loss and contamination. Secure the brake pipe fitting with a back up wrench before disconnecting the crake hose from it. Cover the brake pipe fitting end with a hose cap or plug. Take off the brake hose retaining clip from the mounting bracket and after that remove the brake hose bolt with bracket from the upper Control Arm and Steering Knuckle. Take out the brake hose from the caliper by removing both copper brake hose gaskets and the brake hose to caliper bolt from the brake caliper. The installation involves using 2 new copper gaskets and fixing them with the brake hose bolt. Position the brake hose on top of the caliper bolt then place two new washers before tightening them to 40 nm (30 ft. Lbs.). Rephrase the following sentence. Keep the following points direct and flowing while installing the brake hose against suspension components. Attach brake hose parts to Steering Knuckle and upper Control Arm by tightening bolts to 9 nm (80 inch lbs.). Restore the brake hose clamp before placing the rubber plug aside and join the brake hose fitting to its pipe through a back up wrench while preventing twist or contact from bracket or pipe segments. Secure the fitting nut with 25 nm torque (18 ft. Lbs.). Let out hydraulic brake fluid and set back the tire assembly while watching if the brake hose hits suspension and wheel components during sharp turns; repair as needed before dropping the vehicle down.