CM246
The larger-bore XUI1847L is built for the Honda Pilot/Ridgeline and Acura MDX family, where towing loads and larger brakes call for a higher-volume master cylinder.
The bore and hardware are matched with a factory-style fluid level sensor so the dash warning light functions correctly, a yellow-tipped pushrod matched to factory clearance and travel, and a gray reservoir cap matching factory appearance, and is machined for a 26.98mm bore, a Φ44/90/45°/2-Φ9 mounting pattern, and M14 X 1.5, M14 X 1.5 port threads.
Compatibility is confirmed with 2005-2008 Honda Pilot, 2006-2008 Honda Ridgeline, and 2003-2006 Acura MDX. In terms of interchange, it covers 46100-S3V-A01, 46100-S3V-A11, 46100-SJC-A51, and 46100-SDA-A02. It's also cross-listed under DORMAN part numbers for easier sourcing.