HomeBrake > Brake HydraulicsMPA Electrical NM4180 Brake Master Cylinder
Part #: NM4180

MPA Electrical NM4180 Brake Master Cylinder

New with front disc brakes
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$107.20Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
New with front disc brakes
Fitment: Chevrolet and GMC, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Brake Master Cylinder for Silverado and Sierra HD

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built for 2007-2008 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models with front disc brakes, part number NM4180 is a standard replacement for hydraulic brake service.

Key Features

  • Brand: MPA Electrical
  • Part number: NM4180
  • Brake master cylinder for brake hydraulic repair
  • New with front disc brakes application
  • Aluminum master cylinder body with plastic reservoir
  • Reservoir included with cap included
  • 1.456 in. master cylinder bore diameter
  • Uses DOT 3 brake fluid
  • 2 mounting holes with 0.427 in. mounting hole diameter
  • Standard replacement grade

Product Details

MPA Electrical NM4180 is a brake master cylinder engineered to restore braking performance by delivering hydraulic pressure to the brake system. The aluminum construction, integrated plastic reservoir, and OE-based testing process support consistent operation for Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD trucks equipped with front disc brakes. This part cross-references GM 15775174 for the same application.

Common Brake Issues It Can Address

  • Low or inconsistent brake pedal feel
  • Internal hydraulic leakage in the master cylinder
  • Brake fluid loss at the reservoir or cylinder body
  • Reduced braking response during normal driving or towing
  • Brake system performance concerns on front disc brake trucks

Installation Notes and Tips

Before installation, verify vehicle fitment by year, make, model, and brake configuration. This master cylinder does not include mounting hardware, a brake booster, push rod, gasket or seal, sensor, or brake pressure switch. Bench bleeding the master cylinder before installation helps remove trapped air and supports proper pedal feel after the system is filled with DOT 3 fluid.

Quality Assurance

MPA Electrical tests each unit against OE specifications using controlled procedures and an OE sample library to help ensure consistent braking performance out of the box. Part number NM4180 is a new standard replacement brake master cylinder for service on the listed Chevrolet and GMC HD trucks.

BrandMPA Electrical
Part NumberNM4180
PositionNew with front disc brakes
Reservoir MaterialPlastic
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Gasket Or Seal IncludedNo
Mounting Hole Quantity2
Master Cylinder Bore Diameter1.456
Brake Booster IncludedNo
Master Cylinder Cap IncludedYes
Master Cylinder MaterialAluminum
Push Rod IncludedNo
Reservoir IncludedYes
Sensor IncludedNo
Mounting Hole Diameter0.427
Mounting Bracket IncludedNo
Brake Pressure Switch(s) IncludedNo
Fluid TypeDot 3
Product ConditionNew

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2008ChevroletSilverado 2500 HDN/ANew with front disc brakes
2008ChevroletSilverado 3500 HDN/ANew with front disc brakes
2008GMCSierra 2500 HDN/ANew with front disc brakes
2008GMCSierra 3500 HDN/ANew with front disc brakes
2007ChevroletSilverado 2500 HDN/ANew with front disc brakes
2007ChevroletSilverado 3500 HDN/ANew with front disc brakes
2007GMCSierra 2500 HDN/ANew with front disc brakes
2007GMCSierra 3500 HDN/ANew with front disc brakes

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

15775174

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.