CAT 1R-1807 Oil Filter Pack of 2 — Advanced High-Efficiency, 1.125-16 UNF Thread

Caterpillar 1R-1807 Advanced High Efficiency Oil Filter (pack of 2) is a genuine CAT replacement designed to trap contaminants while maintaining oil flow for heavy-duty engines.

This pair of authentic CAT 1R-1807 oil filters fits applications that require the 1.125-16 UNF threading and a tall canister profile. Made to the manufacturer’s specifications, these filters are intended for use where Caterpillar recommends the 1R-1807 part number. Check vehicle or equipment manuals for compatibility before ordering to ensure proper fit and performance.

How does the CAT 1R-1807 help protect heavy-duty engines?

The 1R-1807 uses filtration media and construction engineered to capture particles and hold debris away from the engine’s oil system. By keeping contaminants in the filter, it helps preserve oil quality and support component longevity under demanding conditions.

• Advanced media for efficient particle capture
• Robust canister design for high-pressure environments
• Factory-specified dimensions: 262 mm height, 108 mm diameter
• Thread size 1.125-16 UNF for correct installation

What are the physical specifications and installation details?

Each filter in this two-pack measures 262 mm tall with a 108 mm outer diameter and uses a 1.125-16 UNF threaded connection. The size and thread match Caterpillar’s original equipment standards, enabling direct replacement where 1R-1807 is specified.

• Height: 262 mm for the specified housing depth
• Diameter: 108 mm to match sealing surfaces
• Thread: 1.125-16 UNF for secure mounting
• Sold as a pack of two for convenient spares or staggered maintenance

Why should I choose a genuine CAT filter instead of an aftermarket option?

Genuine Caterpillar filters are manufactured to match the company’s engineering tolerances and material choices, which helps ensure consistent fit and predictable performance. Using OEM parts reduces the risk of dimensional mismatch and can simplify warranty or service considerations when servicing CAT equipment.

• Built to Caterpillar tolerance and quality standards
• Direct fit minimizes installation issues or leaks
• Pack of two provides immediate backup for scheduled maintenance
• Supplier traceability for fleet documentation and records

How often should I replace the 1R-1807 oil filter?

Replacement intervals depend on your equipment, operating hours, load patterns, and oil type. Follow the maintenance schedule in your equipment manual or consult an authorized service technician to determine the proper change frequency for your work conditions.

• Refer to equipment owner’s manual for manufacturer intervals
• Inspect more frequently under dusty or high-load use
• Consider oil analysis results when setting service intervals
• Keep a replacement on hand to match scheduled services

Who is this for? The Caterpillar 1R-1807 Advanced High Efficiency Oil Filter (pack of 2) is intended for owners, technicians, and fleet managers operating Caterpillar or compatible heavy-duty engines that specify the 1R-1807 part number. It suits professionals who prioritize OEM-fit components, reliable filtration in demanding environments, and a ready supply of spare filters for routine maintenance. Before purchasing, confirm thread and dimensional compatibility with your equipment’s parts list or consult your authorized CAT dealer to ensure this exact filter matches your engine model and service requirements.