Protec 173 Engine Oil Filter

Protec 173 Engine Oil Filter Overview

The Protec 173 engine oil filter is built for everyday driving with conventional motor oil and standard oil change intervals. It is a spin-on lube filter for drivers who need dependable filtration for city and highway use, including select Ford E-250, E-350, F-150, F-250, and F-350 applications.

With enhanced cellulose media and a 32-micron rating, this filter supports routine engine protection in vehicles that follow traditional 3,000 to 5,000 mile service intervals. The Protec 173 is a practical choice for older Ford truck and van maintenance, including Ford E-350 Econoline and Ford F-250 oil filter replacement needs.

Key Features

• Part number: Protec 173
• Spin-on lube filter design
• Enhanced cellulose media for everyday filtration
• 32.00 micron rating
• Flow rate: 28-30 GPM
• Burst pressure: 390
• Thread size: 1 1/2-16
• Height: 5.968 in.; outer diameter: 4.282 in.
• No anti-drain back valve
• No bypass relief valve setting

Detailed Description

Protec 173 is an engine oil filter designed for conventional oil service in normal driving conditions. The filter uses enhanced cellulose media and laboratory-tested performance data referenced to ISO 4548, with Protec reporting 95% efficiency at 29 microns based on related Protec filter testing. It is suited to routine maintenance on older Ford applications where standard oil and filter change intervals are followed.

Compatible With 1983-1994 Ford E-350 Econoline, N/A; 1983-1994 Ford E-350 Econoline Club Wagon, N/A; 1983-1994 Ford F-250, N/A; 1983-1994 Ford F-350, N/A; 1983-1991 Ford E-250 Econoline Club Wagon, N/A; and 1984 Ford F-150, N/A. This part cross-references Wix 51742 and NAPA Gold Filters 1742 for the same application. The Protec 173 part number is also referenced in interchange listings for several aftermarket filter lines.

What It Helps Address

• Routine engine oil filtration during normal city and highway driving
• Maintenance for conventional oil change intervals of 3,000 to 5,000 miles
• Replacement needs for older Ford truck and van oil filter service
• Filtration support for everyday engine wear control
• Service intervals where a standard spin-on oil filter is required

Installation Notes and Tips

Verify the thread size, height, and outer diameter before installation. Confirm the vehicle uses a 1 1/2-16 spin-on oil filter and check clearance around the filter mount on Ford E-350 Econoline, Ford F-250, and Ford F-350 applications. Replace the filter during each oil service and follow the vehicle manufacturer’s oil change procedure.

Quality Assurance

Protec positions this filter for conventional oil use in everyday driving and publishes laboratory test performance data tied to ISO 4548 testing. The stated construction includes enhanced cellulose media, a 390 burst pressure rating, and a 28-30 GPM flow rate for routine engine service.