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Dorman®
M630309 First Stop Series Brake Master Cylinder With Reservoir

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$111.99
$252.38Save: $140.39(56%)
Manufacturer #M630309
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Part:
Brake Master Cylinder
Brand:
Dorman
Notes:
0.938 in. bore diameter; M12 x 1.0 Forward Outlet Size Forward Outlet Size; M10 x 1.0 Rearward Outlet Size
Series:
First Stop Series
Condition:
New
Reservoir Included:
With Reservoir
Replaces OE Number:
M3081, NM3081, F140681, MC140681, 13682, MC390782, 130.67027, 5093407AA, 13-4437, 10-4437
Includes:
With Sensor
Quantity Sold:
Sold individually
Warranty:
Lifetime Dorman limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number:
M3081, NM3081, F140681, MC140681, 13682, MC390782, 130.67027, 5093407AA, 13-4437, 10-4437
Outlet Quantity:
2 Outlets
Recommended Use:
OE Replacement

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2003 Dodge Ram 2500
Laramie
6 Cyl 5.9L
DIESEL, Bore: 15/16 in.
2003-2005 Dodge Ram 2500
SLT
6 Cyl 5.9L
DIESEL, Bore: 15/16 in.
2003-2005 Dodge Ram 2500
ST
6 Cyl 5.9L
DIESEL, Bore: 15/16 in.
2003-2005 Dodge Ram 3500
Laramie
6 Cyl 5.9L
DIESEL, Bore: 15/16 in.
2003-2005 Dodge Ram 3500
SLT
6 Cyl 5.9L
DIESEL, Bore: 15/16 in.
Page 1 of 2 | Showing 1 - 5 of 7 results

Product Information

DORMAN FIRST STOP OE REPLACEMENT BRAKE MASTER CYLINDERS

Replace your leaking master cylinder with Dorman’s First Stop OE replacement brake master cylinders and stomp on the brakes with renewed confidence. Since 1918, Dorman Products has supplied the automotive aftermarket with high-quality replacement parts, hardware and fasteners.

  • Housing manufactured with premium cast iron or aluminum
  • Rigorously engineered to meet SAE standards
  • EPDM-based rubber components holds up against glycol-based brake fluid
  • 100% new
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

0
Do you carry the brake lines from the brake master cylinder to the anti lock bod for a 2003 dodge slt 5.9 diesel?Jay P.Jan 30, 2024
Best Answer:Hi Jay, I'm pleased to assist you. Yes, we do carry the brake lines for the 2003 Dodge Ram 3500 SLT 6 Cyl 5.9L. Click on the link below to choose among the options we have available. Choose only those with the "Guaranteed to Fit" badge and order while supplies last. I hope this helps and enjoy shopping! <a href="https://www.carparts.com/search?q=brake_lines&vehicle[cylinders]=6&vehicle[liter]=5%2E9&vehicle[submodel]=SLT&vehicle[model]=Ram_3500&vehicle[make]=Dodge&vehicle[year]=2003&can=CPGG4850_CSQA_20240130" target="_blank">https://www.carparts.com/search?q=brake_lines&vehicle[cylinders]=6&vehicle[liter]=5%2E9&vehicle[submodel]=SLT&vehicle[model]=Ram_3500&vehicle[make]=Dodge&vehicle[year]=2003&can=CPGG4850_CSQA_20240130</a>
Grace G.STAFFJan 30, 2024
0
Will this fit a 2003 dodge SLT 5.9 diesel with power assist ?Jay P.Jan 30, 2024
Best Answer:Hi Jay, I'm pleased to assist you. Yes, this is compatible with the 2005 Dodge Ram 3500 SLT 6 Cyl 5.9L, diesel with power assist. You can go ahead and use the link below to directly place your order before the sale ends. I hope this helps, and happy shopping! <a href="https://www.carparts.com/brake-master-cylinder/dorman/rbm630309?can=CPGG4850_CSQA_20240130" target="_blank">https://www.carparts.com/brake-master-cylinder/dorman/rbm630309?can=CPGG4850_CSQA_20240130</a>
Grace G.STAFFJan 30, 2024
0
The pic shows an electrical connector.  I assume the low fluid sensor.  1) is it the LFS? 2) is the LFS included?Ernst B.Aug 22, 2023
Best Answer:Hi Gene, thank you for reaching out. Yes, and it is included! Click the link below to order the assembly before the sale ends. Have a great day! <a href="https://www.carparts.com/brake-master-cylinder/dorman/rbm630309?can=cpab2020_csqa_20230822" target="_blank">https://www.carparts.com/brake-master-cylinder/dorman/rbm630309?can=cpab2020_csqa_20230822</a>
Andrew B.STAFFAug 22, 2023

Customer Reviews

First Stop Series Brake Master Cylinder With Reservoir
Great product
Great pricing easy installation. Fixed the break problem
DONNA H.
VERIFIED PURCHASER
Purchased on Sep 12, 2022
First Stop Series Brake Master Cylinder With Reservoir
Arrived a day early. Very well built (not flimsy plastic). Plastic had the same markings from the installed. Could have been an OEM product. Very satisfied with this product.
Ernst B.
VERIFIED PURCHASER
Purchased on Aug 22, 2023