Dorman - First Stop Drum Brake Wheel Cylinder P/N:W4801
Keep hydraulic pressure moving the brake shoes against the drum with the Dorman - First Stop Drum Brake Wheel Cylinder W610183. This rear left forward drum brake wheel cylinder uses brake-line pressure to push its pistons and the shoes outward when you press the pedal. It drops into the listed applications: 2016-2017 Chevrolet LCF 3500, 2017 Chevrolet LCF 4500HD, 2003-2009 Chevrolet W3500 Tiltmaster, 2003-2010 Chevrolet W4500 Tiltmaster, 2003-2008 GMC W3500 Forward, 2003-2010 GMC W4500 Forward, 2003-2016 Isuzu NPR, 2003-2016 Isuzu NPR-HD, and 2013-2015 Isuzu Reach (All engines) — see the Buyer's Guide tab for the full list.
Signs the original may need replacing include brake fluid leaking at the wheel cylinder or backing plate, a soft or sinking pedal, or weak drum braking. Diagnose the cause first; if a failed wheel cylinder is the cause, this replaces it.
Interchange: 134.76040 · 13476040 · 375-47093 · 37547093 · 97349707 · 8973497070 · WC370247. Manufacturer part number W610183. Country of origin: China.
This part cross-references / interchanges with the following part numbers:
What does the W610183 wheel cylinder do?
It uses brake-line hydraulic pressure to push its pistons and the brake shoes outward against the drum when you press the pedal, applying the drum brake on the listed applications.
Does this wheel cylinder include a bleeder screw?
No. The bleeder screw and bleeder screw cap are not included; install and bleed the cylinder following the vehicle service procedure.
What position is this wheel cylinder?
It is cataloged for the rear left forward position on the listed applications.
Which vehicles does it fit?
Chevrolet LCF 3500/4500HD, W3500/W4500 Tiltmaster, GMC W3500/W4500 Forward, and Isuzu NPR, NPR-HD and Reach — see the Buyer's Guide tab for the exact years.
What are the bore and thread specs?
The bore has a 1.188 in inside diameter, and the inlet thread is M10 x 1.0 (10 mm, 1.0 pitch). The body is cast iron.
WARNING: These products can expose you to chemicals including lead and phthalates, which are 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.