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Description
B&M Shift Improver Kit - Mopar A727/A904 Transmissions - 10225Overview: This B&M Shift Improver kit fits all 1971 1977 Chrysler, Dodge and Plymouth Torqueflite A727 transmissions, along with A904 transmissions that originally came behind V 8 engines. This kit recalibrate's your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street Strip.
Overview:
This B&M® Shift Improver™ kit fits all 1971-1977 Chrysler, Dodge and Plymouth Torqueflite A727 transmissions, along with A904 transmissions that originally came behind V-8 engines. This kit recalibrate's your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street/Strip. Stage 1 gives firm positive shifts without loss of driver comfort for improved shifting performance in all street vehicles. Street/Strip is for high performance street use or for competitive events for the enthusiast who wants the hardest hitting, quickest possible shifts. All you need are basic tools, the included installation instructions and in the space of an afternoon you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!
Features:
- Two kits In One - Heavy Duty or Street/Strip
- Over 65 Years of B&M Quality
- Provides Firm Positive Shifts
- Eliminates Shift Overlap
- Legendary Performance
- Easy to Install
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1971 - 1974 | Dodge | D200 Pickup | ||
| 1971 - 1974 | Dodge | D300 Pickup | ||
| 1971 - 1973 | Dodge | Dart | Base | |
| 1971 - 1974 | Dodge | W100 Pickup | ||
| 1971 - 1974 | Dodge | W200 Pickup | ||
| 1971 - 1974 | Dodge | W300 Pickup | ||
| 1971 - 1974 | Plymouth | Barracuda | ||
| 1971 - 1974 | Plymouth | Cuda | ||
| 1971 - 1973 | Plymouth | Duster | Base | |
| 1974 - 1976 | Plymouth | Duster | ||
| 1972 - 1974 | Plymouth | Gran Fury | Base | |
| 1974 | Plymouth | PB100 Van | Voyager | |
| 1974 | Plymouth | PB200 Van | Voyager | |
| 1974 | Plymouth | PB300 Van | Voyager | |
| 1971 - 1975 | Plymouth | Road Runner | ||
| 1971 - 1974 | Plymouth | Satellite | ||
| 1971 - 1976 | Plymouth | Scamp | ||
| 1974 - 1977 | Plymouth | Trailduster | ||
| 1971 - 1976 | Plymouth | Valiant | ||
| 1971 - 1974 | Dodge | M300 | ||
| 1972 - 1973 | Dodge | R300 | ||
| 1973 - 1977 | Dodge | CB300 | ||
| 1973 - 1974 | Dodge | RM300 | Base | |
| 1974 | Dodge | R300 | Base | |
| 1971 - 1974 | Dodge | RM350 | ||
| 1971 | Dodge | RM300 | ||
| 1971 - 1974 | Dodge | B200 Van | ||
| 1971 - 1974 | Dodge | B300 Van | ||
| 1971 | Dodge | Challenger | Base | |
| 1972 - 1974 | Dodge | Challenger | ||
| 1971 | Dodge | Charger | Base | |
| 1971 | Dodge | Charger | Special Edition | |
| 1971 | Dodge | Charger | 500 | |
| 1972 - 1977 | Dodge | Charger | ||
| 1971 - 1976 | Dodge | Coronet | ||
| 1971 - 1974 | Dodge | D100 Pickup | ||
| 1971 - 1973 | Dodge | Dart | Custom | |
| 1971 - 1973 | Dodge | Dart | Special | |
| 1971 - 1973 | Dodge | Dart | Swinger | |
| 1971 - 1972 | Dodge | Dart | Demon | |
| 1973 | Dodge | Dart | Sport | |
| 1974 - 1976 | Dodge | Dart | ||
| 1971 - 1977 | Dodge | Monaco | ||
| 1971 - 1972 | Dodge | P200 | ||
| 1971 - 1972 | Dodge | P300 | ||
| 1975 - 1977 | Chrysler | New Yorker | ||
| 1972 - 1977 | Chrysler | Newport | ||
| 1975 - 1977 | Dodge | B100 | ||
| 1975 - 1977 | Dodge | B200 | ||
| 1975 - 1977 | Dodge | B300 | ||
| 1975 - 1977 | Dodge | D100 | ||
| 1975 - 1977 | Plymouth | Gran Fury | ||
| 1975 - 1977 | Plymouth | PB100 | ||
| 1975 - 1977 | Plymouth | PB200 | ||
| 1975 - 1977 | Plymouth | PB300 | ||
| 1972 | Chrysler | New Yorker | Brougham | |
| 1971 | Chrysler | Newport | Base | |
| 1971 | Chrysler | Newport | Royal | |
| 1971 - 1974 | Dodge | B100 Van | ||
| 1975 - 1977 | Dodge | D200 | ||
| 1975 - 1977 | Dodge | D300 | ||
| 1974 - 1977 | Dodge | Ramcharger | ||
| 1975 - 1977 | Dodge | Royal Monaco | ||
| 1975 - 1977 | Dodge | W100 | ||
| 1975 - 1977 | Dodge | W200 | ||
| 1975 - 1977 | Dodge | W300 | ||
| 1971 - 1973 | Dodge | Polara | ||
| 1974 | Plymouth | PB300 Van | Voyager EX | |
| 1974 | Plymouth | PB300 Van | Voyager EX Wagon |
Specs:
| Automotive Item Grade | High Performance |
|---|---|
| Brand | B&M |
| California Proposition 65 Chemical Name | Cadmium and cadmium compounds |
| California Proposition 65 Required | Yes |
| Emission Code | 5 |
| Gasket Included | Yes |
| Instructions Included | Yes |
| Product Type | Automatic Transmission Valve Body Kit |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Very Different, But Works Well
This is built much different than the others. It has a foam seal around the edges. The filter portion is standard, but the carbon activated material is a setoff beads suspended between a screen a honeycomb structure. There is air freshener built-in to help with the smell in the car. Fits well in my 2015 RAV4. Just as easy to install as any other filter. The price is on the high side so with this one I am hoping to get at least one year of use from it.
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Reviewed in the United States on November 25, 2025
★★★★★ 4
Well-Made Carbon Cabin FIlter
I love the honeycomb carbon filter on this cabin filter. It looks like it will do an excellent job cleaning the air in my car. It came in a cardboard box and was easy to install and fit my Toyota well. I would have appreciated some arrows on it, like other filters come with, to let me know I was inserting it correctly. I just followed the example of the one already in my car. If you accidentally take that one out first, you may not remember which side goes where. So, my improvement would be arrows on the filter itself.
Otherwise, the airflow seems great, it functions well and seems to be a great quality!
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Use activated carbon to clean the air naturally!
This is a serious air filter with activated carbon inside of it and I'm here for it. I use little activated carbon bags in my car already as an air freshener because I hate those fake chemical scents from the little trees or from the car wash. The chemicals in those fake scents give me migraines. I absolutely love the idea of putting the active carbon in the cabin air filter itself to clean the air. This fits prefecture in my 2017 toyota prius v. It was just a easy to install as any purge cabin air filter. The hardest part is opening all the parts of the glove box to get the old one out. This filter seems sturdier than my last one and it's a good value for the money.
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Perfect fit for 2016 Corolla!
Fit's my 2016 Corolla perfect. Has a sturdy frame. Other name brand ones I have purchased before don't have the sturdy frame and squish up. This comes with tiny fragrant beads on the top part and has a light fresh scent when the air is on. Very happy so far.
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Reviewed in the United States on November 8, 2025
★★★★★ 5
Best cabin filter I've ever seen
This is the most complex and over-engineered cabin air filter I have ever seen, and I mean that in a good way! The overall shell is a hard plastic, and inside it are two basic parts; the filter (HEPA quality) and the loose fill activated charcoal. The filter media appears to be operating room quality, and if I were to guess, I would say it's like a MERV 14 or greater. The pleats are plentiful, and the spacing of the pleats are perfect, as well as the attachment of the media to the filter frame. The charcoal is a loose style fill, and it fits between the back of the filter media and the filter screen on the very back. This must have 5 times the amount of charcoal compared to the charcoal infused media you can get from many suppliers. The frame fits perfect in my 4runner, and it is hard plastic with good gasket material to further help the effectiveness of the media.
All in all, this is an incredibly engineered filter, and if you're the type that wants nothing but the best for your vehicle, you've come to the right place by choosing this one. It is pricey, at $20 for one filter at the time of writing this review, but this is a textbook case of "you get what you pay for." I am going to start only buying these from now on, as they are the best quality and construction filter I have seen, and I highly recommend this filter!
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Reviewed in the United States on November 3, 2025
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