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2009 Workhorse Custom Chassis W42

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ACDelco 18M870 Brake Master Cylinder
for 2009 Workhorse Custom Chassis W42

ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 1
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 2
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 3
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 4
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 5
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 6
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 7
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42 Image 8
ACDelco 18M870 Brake Master Cylinder - 2009 Workhorse Custom Chassis W42

ACDelco
Brand:ACDelco
Part Number: 18M870
UPC: 00021625510804
Weight: 12.6 lbs
Condition:New



On Sale:

$338.10

Availability:
24 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

CYLINDER B (B)

ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
  • Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
  • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
  • Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear
  • Pressure tested to ensure safe and confident braking

Specifications:

Bleeder Hoses Included:
Yes
Bore Size:
2.000 in.
Brake Booster Included:
No
Height (in):
6.7 in
Length (in):
10 in
Master Cylinder Bore Diameter:
2 in.
Master Cylinder Bore Diameter:
50.8 mm
Master Cylinder Cap Included:
Yes
Master Cylinder Material:
Aluminum
Mounting Bracket Included:
No
Mounting Hole Diameter:
0.433 in.
Mounting Hole Quantity:
4
Port Quantity:
2
Primary Outlet Thread Diameter:
0.5 in.
Primary Outlet Thread Diameter:
12.7 mm
Programming Required:
No
Push Rod Included:
No
Reservoir Included:
Yes
Secondary Outlet Thread Diameter:
0.5625 in.
Secondary Outlet Thread Diameter:
14.287 mm
Weight (lb):
12.6 lb
Width (in):
9.1 in

Features and Benefits:

  • – Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • – Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • – Check the thickness of your brake pads.
  • – Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • – Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • – Inspection of the brake hoses for brittleness or cracking.
  • – Inspection of wheel bearings and grease seals.
  • – Parking brake adjustments (as needed).
  • The following inspections and maintenance procedures can help prevent potential brake problems:
  • The following should be conducted by a qualified technician:

Specifications:

Country of Origin:
US

ACDelco 18M870 Brake Master Cylinder compatibility with your 2009 Workhorse Custom Chassis W42...

Last Updated: 03/09/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 
Workhorse Custom Chassis W42

4.8L V8 Gas OHV
1
 
Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter
 

Workhorse Custom Chassis W42



4.8L V8 Gas OHV Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter

1 Per Vehicle

2010

 

2009

 

2008

 

2007

 

2006

 

2010

 

2009

 

2008

 

2007

 

2006

 
Workhorse Custom Chassis W42

6.0L V8 Gas
1
 
Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter
 

Workhorse Custom Chassis W42



6.0L V8 Gas Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter

1 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2009

 

2008

 

2007

 

2006

 
Workhorse Custom Chassis W42

4.5L V6 Diesel Turbo
1
 
Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter
 

Workhorse Custom Chassis W42



4.5L V6 Diesel Turbo Professional
w/ Bosch Master Cylinder
Rectangular Reservoir
2 Bore Diameter

1 Per Vehicle

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