1R-1807 CAT Engine Oil Filter

The Caterpillar 1R-1807 is a spin-on Advanced Efficiency engine oil filter designed for heavy-duty industrial and commercial equipment. It is engineered to provide superior protection by capturing finer particles than standard filters, which helps maximize engine life and maintain high performance in demanding environments.

Key Specifications & Features

• Filtration Performance: Rated at 4 microns at 20% efficiency and 20 microns at 100% efficiency.
• Dimensions: Diameter of 108 mm and height of 262 mm.
• Mounting: Uses a thread size of 1.125 - 16 - UNF.
• Construction: Features a robust one-piece can design, non-metallic center tube to avoid contaminants, and spiral roving for pleat stability to better trap particles.
• Capacity: Holds approximately 2–2.5 quarts of oil, which helps keep the oil cooler and cleaner compared to smaller standard filters.

Common Applications

• Cat Engines: Primary application for 3300, 3400, and 3500 series engine families, as well as select C-series industrial engines (e.g., C9, C12, C18, C30/C32).
• Duramax Conversions: Frequently used as an upgrade for 6.6L Duramax (Chevy/GMC) trucks from 2001–2019 using a specialized CAT oil filter adapter.
• Heavy Equipment: Fits various articulated trucks, excavators (e.g., M318), wheel loaders, and military vehicles like the MATV and MRAP.

Cross-Reference Guide

If you cannot find the genuine CAT part, these are common equivalents:

• Baldwin: B76
• Donaldson: P551807
• Wix: 51788
• Fleetguard: LF3379

⚠️ Warning

This product can expose you to chemicals including Lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.