ACL Performance Main Bearings 5M1959HX-STD - Honda 4, 1.6L-2.4L B16/B17/B18/K20/K24, Race Series (Size: Std)
SKU: 57803814670

ACL Performance Main Bearings 5M1959HX-STD - Honda 4, 1.6L-2.4L B16/B17/B18/K20/K24, Race Series (Size: Std)

Sale price$62.99 Regular price$69.99
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Description

ACL Performance Main Bearings 5M1959HX-STD - Honda 4, 1.6L-2.4L B16/B17/B18/K20/K24, Race Series (Size: Std)ACL is an engine builders top choice for their quality and consistency. Buy with confidence; you will find ACL in many cars on road as they are an Original Equipment supplier. Many racers, especially import racers, swear by both their stock and performance series crankshaft rod and main bearings. ACL premium bearings will not only hold up better and longer than OEM, but the special coating process will also help prevent premature engine bearing

ACL is an engine builders top choice for their quality and consistency. Buy with confidence; you will find ACL in many cars on road as they are an Original Equipment supplier. Many racers, especially import racers, swear by both their stock and performance series crankshaft rod and main bearings. ACL premium bearings will not only hold up better and longer than OEM, but the special coating process will also help prevent premature engine bearing failures and expensive engine damage.

ACL Race series performance bearings are for extreme endurance under harsh conditions. Plan on running high RPMs and big boost? Fatigue, stress wear, and failure are factors you won't have to worry about when you are running ACL's top of the line metallurgy.

ACL Duraglide series bearings are a tri-metal design that provide a combination of high strength and the ability to withstand harsh / demanding operating conditions above casual driving. This makes them ideal for performance engines and rebuilds.

Please Note When Ordering Bearings: Engine bearings require proper tolerance to be measured before purchase. If you are not sure what size bearings your build requires, please consult a professional engine builder. We are not responsible for incorrectly ordered bearings and can not take returns or provide exchanges on any engine internal components.

Max Overall Length: 0.7874" (20.00mm)
Max Std Shaft Size: 2.1654" (55.000mm)
Max Std Tunnel Size: 2.3236" (59.020mm)
Max Wall at Crown: 0.0785" /1.994mm)
Min Std Shaft Size: 2.1646" (54.980mm)
Min Std Tunnel Size: 2.3228" (59.000mm)
Oil Clearance: + 0.001" Extra
Size: Standard


Notes:

H: Standard oil clearance
HX:
 +0.001 in extra oil clearance
HD:
 Standard Oil Clearance + Dowel hole in lower half
HXD:
 +0.001 in extra oil clearance + Dowel hole in lower half

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 57803814670

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Bartek
Draper, US
★★★★★ 5
Noticeable upgrade in air quality and a seamless installation
Size: 9.3" x 9.7" x 1.8"
I'm generally skeptical of the "HEPA" marketing for automotive filters, but after installing this in my Honda, the reduction in exterior odors—especially exhaust and pollen—is actually significant. The construction feels far more robust than the flimsy OEM paper filters I’ve used in the past; the pleats are dense and well-reinforced, which gives me more confidence in its filtration efficacy over a 12,000-mile interval. Installation was straightforward and took less than five minutes. It’s a precision fit with no gaps around the edges, ensuring that all intake air is actually being routed through the media rather than bypassing it. One thing to note is that you might notice a very slight decrease in max fan velocity due to the increased density of the HEPA material, but the tradeoff for cleaner air is well worth it in my opinion. If you live in an area with high pollution or suffer from seasonal allergies, this is a legitimate quality-of-life improvement for your daily commute.
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Reviewed in the United States on February 26, 2026
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Michael
Phoenix, US
★★★★★ 5
Exact fit!
Size: 9.3" x 9.7" x 1.8"
Was a great replacement for OE on my 2012 Honda Accord. It was the exact same size as the previous filter and has no strange smells or odors. Very easy to install behind the glove box and looks great!
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Reviewed in the United States on March 23, 2026
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Verified Purchase
David M
Carnegie, US
★★★★★ 4
Bosch quality
Size: 9.3" x 9.7" x 1.8"
Fit my vehicle without any problems. Quality similar to the OEM filter and at a much better price.
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Reviewed in the United States on February 25, 2026
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SS
Waukegan, US
★★★★★ 5
Great Filter, Good Quality!
Size: 9.3" x 9.7" x 1.8"
The beauty of this filter is that it comes with very clear instructions on what to do. Not a lot of manufacturers. Give clear instructions. I got this for a 2007 MDX. The packaging of the product itself was well done by Bosch. Installation was a breeze and as soon as I turned on the air conditioning post installation, I could tell the very clear difference. Plus, I also got an opportunity to look at the old filter which was filled with the usual culprits and debris. The initial airflow did have a mild smell of kerosene or like fuel. But this could also be because of the filter component itself needing to be vented out. I would recommend keeping the filter out for about 30 to 60 minutes before installation. Once installed, however, the improvement in air quality was very evident. The fit was very good as well. Highly recommend this. Very high quality.
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Reviewed in the United States on October 18, 2025
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Elijah
Pawtucket, US
★★★★★ 5
Cheaper & Higher Quality Than OEM Filters
Size: 9.3" x 9.7" x 1.8"
This Bosch Filter costs less than an OEM Filter and is significantly better because it's a HEPA filter unlike the cheap filters that most automotive manufacturers use. Can't go wrong with this!
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Reviewed in the United States on May 26, 2026

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