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Dorman M390259 Brake Master Cylinder Compatible with Select Models

Dorman M390259 Brake Master Cylinder Compatible with Select Models

Q: Does it come with the plugs for the ports? Asking since I'm going to bench bleed it prior to install

I bought this MC a year ago. Mine did not come with the plugs. What I did was go to autozone (maybe it was oreilly's, can't remember) and bought a brake bleed set. In fact, I repurposed a vacuum brake bleed (hand pump style), and used it as both the pre-install bench bleed, but also once installed used the same vacuum brake bleed to forcibly draw out all the air in the lines, which is going to happen anyway once you crack open the hydraulic lines to install the MC. It really is the best way to do it. The old two person pumping the brakes and turning the brake line bolts aren't very precise. On the other hand, you get really good results by using a vacuum pump... just get the vacuum pump with the clear vinyl lines ....it helps to see the bubbles and see when they stop! also key: do NOT use a metal screwdriver when depressing the MC piston...It's very easy to score the inside travel body..not good...I use a wood dowel, wrapped in old cotton rag.....AND go SLOW!!!...and for this "two stage" MC, you only depress about 1 inch. DO NOT bottom it out. The piston can damage the rear seal. Read the instructions. My kit has the instructions clear in this.

Product ID: 326760988

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📏Meets SAE International standards

⚙️Precision-engineered housing

🛡️EPDM rubber for brake fluid resistance

Frequently Bought Together

Dorman M390259 Brake Master Cylinder Compatible with Select Models

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DRIVESTAR 54-71098 Vacuum Power Brake Booster without Master Cylinder, for Chevy Blazer, GMC C1500/ C2500 (Suburban), K1500/ K2500 (Suburban), Chevy Tahoe C1500, AA15471098 18021896 18029985 18029986

Description

🚗 Upgrade your brake game with precision and peace of mind!

EXACT OEM MATCH - Crafted to mirror original casting material for flawless performance and fit.
FITMENT CONFIDENCE - Use the garage tool to confirm perfect compatibility with your vehicle model.
DURABILITY YOU CAN TRUST - Premium EPDM rubber components resist glycol-based brake fluids, ensuring longevity.
CERTIFIED QUALITY ASSURANCE - Built to meet rigorous SAE International standards for uncompromised safety.
BRAND NEW NOT REMANUFACTURED - 100% new materials guarantee peak safety and reliability every time.

The Dorman M390259 Brake Master Cylinder is a 100% new, precision-engineered replacement part designed to match the original's casting and performance. Featuring durable EPDM rubber components resistant to glycol-based brake fluids and manufactured to meet strict SAE standards, it ensures reliable braking for select Cadillac, Chevrolet, Dodge, and GMC models from the mid-90s to 2000. Confirm fitment easily with the included garage tool for a seamless upgrade.

Specifications

Manufacturer	Dorman Products
Brand	Dorman
Model	M390259
Product Dimensions	32 x 19.81 x 13.72 cm; 1.3 kg
Item model number	M390259
Exterior	Machined
Manufacturer Part Number	M390259
OEM Part Number	10-2352; 13-2352; 130.66029; 13055; 131.66029; 174-723; 18M1492; 18M714; 783-44029; 83-44029; F131468; M-86029; M3034; M900952; MC131468; MC250120; MC390259; NM3034; 18021273; 18029967; 4778450
Item Weight	1.3 Kilograms

Have a Question? See What Others Asked

Does it come with the plugs for the ports? Asking since I'm going to bench bleed it prior to install

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