Allison Spin-On External Transmission Filter 29539579 with Magnet 29535617 for 1000/2000 Series — OEM fit, high-efficiency media

Allison 29539579 spin-on external transmission filter with the 29535617 magnet is a genuine replacement designed to trap contaminants and protect Allison 1000/2000 gearboxes.

This factory Allison spin-on external filter and matching transmission magnet replace worn filtration components on Allison 1000 and 2000 series transmissions. The pair is engineered to remove ferrous particles and other debris from transmission fluid, helping maintain hydraulic cleanliness between service intervals. Allison recommends replacing the spin-on filter after the initial 5,000 miles, and the magnet is intended to be changed at the same time to ensure optimal capture of metallic particulates.

How does this Allison spin-on filter protect my transmission?

The filter element captures contaminant particles suspended in the transmission fluid while the magnet collects metallic shavings and ferrous debris that the media might miss. Together they reduce the amount of abrasive material circulating through clutch packs, valves, and hydraulic passages, which helps preserve component function and shift quality.

• High-efficiency filter media for particle retention
• Dedicated transmission magnet to attract ferrous fragments
• Factory-fit design matches Allison 1000/2000 specifications
• Spin-on format for secure, leak-resistant installation

When should I change the filter and magnet?

Allison recommends the first replacement after approximately 5,000 miles, with subsequent changes based on service intervals and operating conditions. Severe duty, heavy towing, or dusty environments may require more frequent inspection and earlier replacement to maintain fluid cleanliness and component longevity.

• Initial service at ~5,000 miles per Allison guidance
• Follow routine transmission maintenance schedule thereafter
• Inspect magnet for heavy metal accumulation at each service
• Increase frequency under severe duty or heavy usage

Will this filter fit my Allison 1000 or 2000 transmission?

This genuine Allison spin-on filter 29539579 and matching magnet 29535617 are manufactured to fit Allison 1000 and 2000 series transmissions. They are OEM replacements designed for direct compatibility, matching the original filter dimensions, thread pattern, and magnet placement.

• OEM Allison part numbers for accurate fitment
• Correct thread and sealing surfaces for leak-free installation
• Engineered to the same tolerances as factory service parts
• Includes magnet required by Allison service instructions

How easy is it to install the spin-on filter and magnet?

Installation is straightforward for anyone familiar with routine transmission service: drain or access the filter area, remove the old spin-on unit and magnet, and install the new filter hand-tight plus specified torque. Replace the magnet at the same time to ensure it effectively captures metal particles from the system.

• Spin-on design simplifies removal and replacement
• Follow Allison torque and sealing guidelines for best results
• Magnet snaps or threads into place depending on model design
• Recommended to change filter and magnet together

Who is this for: technicians, fleet managers, and owners of vehicles equipped with Allison 1000/2000 transmissions who want a genuine OEM replacement filter and magnet to maintain transmission cleanliness and reliability. Choose this Allison part pair when you need factory-fit components, straightforward installation, and adherence to Allison service recommendations.