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Magnefine 3/8" Magnetic Inline Transmission/Power Steering Filter

4.7 4.7 out of 5 stars 702 ratings
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Purchase options and add-ons

Brand Magnefine
Product Dimensions 3"L x 3"W x 5.5"H
Product Grade
Replacement Part
Fit Type
Universal Fit

About this item

  • Removes ferrous material down to 3 microns
  • Filters non-ferrous material to 25 microns
  • Simple Installation
› See more product details

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Product Description

NEW Magnefine 3/8" Magnetic Inline Transmission Filter The 3/8” Magnefine Filter System by Magnefine Filters. The MAGNEFINE 3/8” filter extends the filtration spectrum to provide dual filtration that is designed to be completely effective in removing damaging ferrous metal particles from automatic transmissions and power steering systems. When the fluid passes within the effective range (5mm) of the powerful magnet, the MAGNEFINE filter quickly attracts all the hard damaging ferrous particles, even down to an incredible sub-micron level stopping the "chain reaction of wear". (University test show removal of harmful ferrous metal particles to 99.9974%) The secondary filtration media, removes remaining non-ferrous materials (i.e. copper, aluminum, dirt, clutch material) The worldwide patented MAGNEFINE dual filtration filter is the only effective form of filtration that can provide dynamic small particle extraction while maintaining full line flow capabilities for automatic transmissions and power steering systems. EXTENDS TRANSMISSION SERVICE CYCLE continual cleaning of the transmission fluid actually produces cleaner fluid than the new fluid you put into the system. Major OEM's recommend adding 10,000 miles to your service cycle with the use of the Magnefine filter. EXTENDS COMPONENT LIFE filtering out ferrous particles 3 microns and up will enhance component life by 7 times, according to Sayles and Macpherson. DESIGNED FOR EASY INSTALLATION easily installed on both hose and steel lines. SIMPLIFIES TRANSMISSION SERVICING No more dropping the pan to service the pan filter at your normal cycle. Pan filter servicing is recommended at 100,000 miles. Servicing may be accomplished by evacuation at the inline filter points or by draining. STOPS "CHAIN REACTION OF WEAR" Removing the ferrous particles in the 3 to 15 micron range with the powerful magnet, stops the wear and break down of the stabilizers.

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
702 global ratings

Customers say

Customers like the appearance, value, ease of installation, and quality of the engine air filter. They mention that it looks good, is easy to install, and is a good investment. Some are happy with filtering, and fit. However, some disagree on seal.

AI-generated from the text of customer reviews

64 customers mention64 positive0 negative

Customers are satisfied with the quality of the engine air filter. They mention that it's well-made, durable, and effective. The metal case looks well constructed and is durable. Some say that the filter is a great inline filter to use on older model cars.

"Filter fit just as it should and seems to be of good quality" Read more

"...Hard to tell if it's working, but seems like a quality product." Read more

"...Very well made!!" Read more

"Good filter metal filter. Used this during the break-in for 1000 miles after installing a new 4L60E transmission in my hot rod." Read more

26 customers mention26 positive0 negative

Customers find the installation process of the engine air filter to be easy. They mention that it's straight forward and easy to install outside the transmission.

"Was super easy to install on my tundra's transmission cooler. Only hard part was figuring out the fluid direction...." Read more

"...This was a huge mistake. While it was smaller in size which made installation easier, it leaked from the seam and introduced air into the system...." Read more

"...Installs easily and gives peace of mind with the protection it gives. I used it for my power steering on my F250." Read more

"...Probably one of the easiest installs and anytime you can put a filter inline its not a bad thing." Read more

18 customers mention14 positive4 negative

Customers like the fit of the engine air filter. For example, they mention it fits in the factory location, it's of good quality, and it fits perfectly with the OEM metal clamp that held the old filter in place. Some say that the filter is smaller in size which made installation easier, but it leaked.

"Filter fit just as it should and seems to be of good quality" Read more

"...This filter fit perfectly in the old bracket by the way and the connectors are the right size...." Read more

"...This was a huge mistake. While it was smaller in size which made installation easier, it leaked from the seam and introduced air into the system...." Read more

"...new one in the exact location of the old one, plus it fit perfectly with the OEM metal clamp that held the old filter in place...." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the value of the engine air filter. They mention that it is a good investment and easy to add to most any car with an automatic transmission.

"...Cheap investment for a long term application." Read more

"...They are also easy and cheap to add to most any car with an automatic trans and help to keep the fluid clean which translates to longer transmission..." Read more

"No loss of pressure on trans. Peace of mind with this product. Good investment...." Read more

"...In the long run will save a lot of money." Read more

10 customers mention10 positive0 negative

Customers are satisfied with the appearance of the engine air filter. They like the all metal design, saying it looks good and is a nice upgrade from plastic. Some appreciate the full metal enclosure and robust volume size. Overall, most are happy with the quality and appearance of this product.

"...I selected this one for its full metal enclosure and robust volume size. There is no pressure sensor on my transmission lines...." Read more

"...seems to be no different and added piece of mind that it is all metal with nice welds meaning I shouldn't have any leaks from this filter!" Read more

"Well built trans filter. I am really liking how this new design is built . I'm using it on my 01 civic ...." Read more

"Like how it is metal vs plastic. Went in easy...." Read more

7 customers mention7 positive0 negative

Customers are satisfied with the filtering of the engine air filter. They mention that the magnetic core helps keep trash out of the filter, and the paper and magnetic filtering helps to prevent metal from entering the engine. Some say that the magnet is not a gimmick and is the best magnetic trans filter out there.

"...this seems to be much better than the Honda filter plus it has a magnet for any metal to save the paper filter from getting clogged or damaged by..." Read more

"...They seem well-built, contain (in addition to the filter media) a beefy magnet (much larger than what's in the transmission pan), and contain a..." Read more

"This filter works and the magnet is not a gimmick but actually works also...." Read more

"...I hope it's working, I have no way to tell. I like the magnetic and paper filtering of this filter." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the protection provided by the engine air filter. They mention that it helps protect both their power steering pump and automatic transmission.

"...I'm excited that this will help protect both my power steering pump, and automatic transmission pump (I bought 2 filters) from both particulates and..." Read more

"...Works well adds protection to the pump, it also in a diesel Ford...." Read more

"Great product. Extra protection for your transmission. Fits in factory location on 2007 Honda CRV and 2013 Odyssey" Read more

"Love it. Extra protection" Read more

12 customers mention7 positive5 negative

Customers are mixed about the seal of the engine air filter. Some mention that the install was good and there were no leaks, while others say that they started to leak a month or two after almost burnt their transmission out. The metal casing solves the issues, but the rack was leaking oil so they decided to replace it.

"...There do not appear to be any leaks or ways for air to enter the system, and I see no evidence of that...." Read more

"...While it was smaller in size which made installation easier, it leaked from the seam and introduced air into the system...." Read more

"...These metal housing units haven’t leaked like the 2 piece, plastic units where I’ve had a couple leak...." Read more

"...Install was good and zero leaks. No doubt it will last for years!" Read more

Filter
5 Stars
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Filter fit just as it should and seems to be of good quality
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Top reviews from the United States

Amazon Customer
5.0 out of 5 stars Filter
Reviewed in the United States on January 30, 2024
Verified Purchase
Filter fit just as it should and seems to be of good quality
Customer image
Amazon Customer
5.0 out of 5 stars Filter
Reviewed in the United States on January 30, 2024
Filter fit just as it should and seems to be of good quality
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Customer image
Customer image
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J fiz
5.0 out of 5 stars A little big, but should work.
Reviewed in the United States on January 21, 2024
Verified Purchase
Note the dimensions when buying this. It's a tight fit in my 1978 F100 due to the length. Hard to tell if it's working, but seems like a quality product.
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Steven
5.0 out of 5 stars Fits well on my tundra
Reviewed in the United States on March 15, 2021
Verified Purchase
Was super easy to install on my tundra's transmission cooler. Only hard part was figuring out the fluid direction. (which I marked it on the lines to whom it may concern, May need to zoom) Also installed one on my power steering. Will definitely be cutting the transmission filter open in a few thousand miles & post pics.

8 Months & 20,000 miles later it was time to do a full drain & fill on my pretty well maintained transmission. Decided to cut the filter open with tin snips over using a grinder so I could tell what's really on the filter.(works perfect on the top rim) Kinda hard to see in the pic but all I had was a very light build up on the magnet which was about equal to the pan magnets (chunk of magnet also chipped off while opening the filter, only issue I had) Very well made!!
Customer image
Steven
5.0 out of 5 stars Fits well on my tundra
Reviewed in the United States on March 15, 2021
Was super easy to install on my tundra's transmission cooler. Only hard part was figuring out the fluid direction. (which I marked it on the lines to whom it may concern, May need to zoom) Also installed one on my power steering. Will definitely be cutting the transmission filter open in a few thousand miles & post pics.

8 Months & 20,000 miles later it was time to do a full drain & fill on my pretty well maintained transmission. Decided to cut the filter open with tin snips over using a grinder so I could tell what's really on the filter.(works perfect on the top rim) Kinda hard to see in the pic but all I had was a very light build up on the magnet which was about equal to the pan magnets (chunk of magnet also chipped off while opening the filter, only issue I had) Very well made!!
Images in this review
Customer image Customer image Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
11 people found this helpful
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Nice Pony
5.0 out of 5 stars Good filter
Reviewed in the United States on November 30, 2023
Verified Purchase
Good filter metal filter. Used this during the break-in for 1000 miles after installing a new 4L60E transmission in my hot rod.
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Prime member CM
4.0 out of 5 stars Too soon to tell
Reviewed in the United States on December 3, 2022
Verified Purchase
Quality looks better than some others such as having the stainless steel. I had a truck the the fram oil filter that rusted by the seam and started leaking. I added it to the vertical return line hose of the power steering to the reservoir on my 07 CRV. The new pump still makes a slight whine noise but I doubt it's because of this filter.
One person found this helpful
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Don Bastion
5.0 out of 5 stars Exact fit
Reviewed in the United States on April 28, 2024
Verified Purchase
Time will tell
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PRNLM
5.0 out of 5 stars Want your transmission to last forever?
Reviewed in the United States on November 29, 2023
Verified Purchase
Have been using these for years in my Volvo XCs. Slice the return line, insert filter and clamp. For transmissions like these that don't have a replaceable filter, putting an in-line filter in the return line is a no brainer.

Current car is at 207k and shifts like butter.

I replace these every 10k like clockwork.

One warning: don't buy the cheaper competitors. I tried one once and had it break in half on me. Luckily it was on the first test start after filter replacement. If it had happened on the road, I could have blown the transmission.

After that, genuine article only for me.
3 people found this helpful
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Amazon Customer
5.0 out of 5 stars Need to see this work to believe what it did
Reviewed in the United States on November 2, 2022
Verified Purchase
I have a Mercedes ML430 AWD and the power steering pump went out on a remote and rural trip. Ordered a new pump on Amazon and this filter, didn’t have enough Mercedes Power Steering Oil to do the recommended flush, was concerned about new pump, when old pump went out it turned the power steering fluid black as oil.

Installed this filter, new power steering pump and tiny amount of Mercedes power steering oil i had to bring it to full. Planned on flushing it when I got back to civilization.

Arrived home about 500 miles later, this filter actually took the black power steering oil in the system and filtered it so good was a light honey yellow color like new fluid. From black to almost clear!

Still did the flush and put a new filter on, but in over 50 years working on cars can’t say I ever saw a product perform that well. Definitely sold for life on these!

Had I known it was going to turn black fluid clear, I would have definitely taken before and after pictures. When I installed filter I was hoping at best to reduce and remove larger particles to protect new pump till we got home. Never, ever expected a filter to actually filter it so fine it caused the oil to go from black to honey, color of new power steering fluid. Still amazed by it. Just “wow”!
17 people found this helpful
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