Skip to product information
SKU:
NLT1H00920
Ships for free in 2–4 business days.
Allison 1000 Spin-On Filter and Magnet Kit 29539579 29535617
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This new aftermarket external transmission filter and control-main magnet kit replaces 29539579 and 29535617 for compatible Allison 1000-series applications.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax with Allison 1000 (2001-2019)
- GMC Sierra 2500HD / 3500HD 6.6L Duramax with Allison 1000 (2001-2019)
- Compatible Allison 1000, 2000, and 2400 series control-main spin-on filter applications
Product Overview
An Allison spin-on filter change is easy to underthink: the donut magnet above the old filter is a required debris collector and is often discarded by mistake. This kit supplies both the external filter and a replacement magnet for a complete service at that point.
The external filter is not the internal pan filter, and it does not correct slipping, contamination, overheating, or low fluid. Fluid type and service interval must follow the transmission and vehicle instructions.
Confirm an Allison 1000/2000/2400-family spin-on filter base, model year, transmission identification, and the two reference numbers before installation.
Key Features & Performance
- External control-main spin-on filter
- Replacement donut-style magnetic collector
- Captures ferrous debris before it recirculates
- Two-piece service set for matching Allison units
Replaces Part Numbers
- 29539579
- 29535617
Common Uses
- Routine external filter maintenance
- Replacing a magnet lost during a previous service
- Inspecting debris after transmission repair or towing use
Technical Specifications
- Product Type: Transmission spin-on filter and magnet kit
- Transmission: Allison 1000 / compatible 2000 and 2400 series
- Filter Position: External control-main
- Condition: New aftermarket service parts
Installation & Fitment
- Verify fluid specification on the vehicle or transmission
- Remove and inspect the old magnet before discarding the filter
- Clean the magnet seating surface
- Lubricate the filter seal and install to specification
- Top off, run through ranges, and check level and leaks correctly
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is this the pan filter? A: No. It is the external spin-on control-main filter and magnet.
Q: Why is the magnet important? A: It collects ferrous wear material and belongs above the spin-on filter on compatible units.
Q: Does the kit fit every Duramax truck? A: Only trucks equipped with the matching Allison filter base and transmission.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 29539579 Allison filter, 29535617 transmission magnet, Duramax spin on filter kit, Allison 1000 external filter service, control main filter magnet
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.