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Description
ACL 4B1972HX-STD - Honda K20A2 / K24A Race Series Rod Bearing Set, .001" Extra ClearanceK Series Parts has used ACL rod bearings in almost every k series motor we have built. We highly recommend them for any K20 and K24 motor build! An ACL standard bearing is equivalent to a Honda green bearing but has extra . 001" of extra oil clearance. These bearings work with the following engine blocks: K20A2,K24A. ACL Description ACL Race Series Connecting Rod Bearings: The unique combination of design, metallurgy and engineering come together to
K Series Parts has used ACL rod bearings in almost every k-series motor we have built. We highly recommend them for any K20 and K24 motor build!
An ACL standard bearing is equivalent to a Honda green bearing but has extra .001" of extra oil clearance.
These bearings work with the following engine blocks: K20A2,K24A.
ACL Description
ACL Race Series Connecting Rod Bearings: The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.
Designed to withstand higher RPM conditions, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications.
Features
- High strength overlay plate* with reduced thickness for improved fatigue properties
- Hardened steel backs* on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
- Increased crush* for improved bearing retention
- Elimination of flash plating* on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
- Increased eccentricity* to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
- Tight consistent wall tolerances* to help you maintain consistent clearances.
- Enlarged ID chamfers* on bearing edges where required to accommodate large fillet radius on performance crankshafts.
SPECIFICATIONS
| Brand: | ACL |
| Part Number: | 4B1972HX-STD |
| Bearing Thickness: | Standard High Performance |
| UPC: | 9315726391501 |
VEHICLE FITMENT
Acura RSX
2002 Acura RSX Type-S, 2003 Acura RSX Type-S, 2004 Acura RSX Type-S, 2005 Acura RSX Type-S, 2006 Acura RSX Type-S
Honda Civic
2006 Honda Civic Si Coupe, 2007 Honda Civic Si Coupe, 2008 Honda Civic Si Coupe, 2009 Honda Civic Si Coupe, 2010 Honda Civic Si Coupe, 2011 Honda Civic Si Coupe, 2007 Honda Civic Si Sedan, 2008 Honda Civic Si Sedan, 2009 Honda Civic Si Sedan, 2010 Honda Civic Si Sedan, 2011 Honda Civic Si Sedan
Acura TSX
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
4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Its a hit for my 9lb chewer!
Style: Chilly Penguin, Size: Small (Pack of 1)
So far so good! My Pup is a chewer and destroys most of his toys. This has been great to keep him happy and occupied for about an hour. I work from home, so when I know I need to keep him busy this is perfect. Ill keep an eye on it to make sure he doesn't break it, but it is pretty solid and thick. He can get through a puzzle in seconds, so this has been so good for him. Ive done mostly broth and veggies, some kibble. Even yogurt and peanut butter. Right now he gets it twice a day. He spends about an hour with it and then hes so tired hes ready for a nap. Once around mid day and another late evening before bed. Im ordering another to keep for when I have to leave him home alone.
He cleans it pretty well, but Ive found soaking in hot water also loosens any bits left behind. Because its small, I'm not worried about extra calories.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
★★★★★ 5
My yorkie loves this!!
Size: Extra Small (Pack of 1), Color: Blue
My Yorkie loves this KONG puppy toy! It keeps him entertained and is perfect for his size. It feels durable and well made, and I’m really happy with this purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
Perfect for small senior dogs!
Size: Extra Small (Pack of 1), Color: Pink
So I actually bought this for my senior Bolonka. She has a neurological disorder that does not allow her to have hard bones or treats, plus I am trying to protect her teeth for as long as I can. This is a GREAT toy. I like to fill up the middle with yogurt or peanut butter and things she can lick instead of bite into. This is the PERFECT size for her. She likes to play with it even without a treat on the inside. She just carries it around the house , as its not heavy at all, and throws it around, it is too cute! It is not loud at all, the only noise that comes out is if shes got a ton of saliva and her teeth rub against it. I just pulled it off the packaging, washed it, and it was ready to go. It will last forever with my baby because she doesn't chew hard so I am unsure about the durability for bigger pups or dogs who are heavy chewers. I am so glad I got this for her and I would HIGHLY recommend it!
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Good quality
Size: Small (Pack of 1), Color: Blue
Bought this as an upgrade for my dog's Kong that she got as a puppy and it's just as good as the smaller one. It works really goodBought this as an upgrade for my dog's Kong that she got as a puppy and it's just as good as the smaller one. It works really good
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Reviewed in the United States on June 3, 2026
★★★★★ 4
Good product misleading size.
Size: Small (Pack of 1), Color: Blue
Really disappointed about the size. It is way too small for my berniedoodle. He still likes it for play but I’m afraid he might swallow it. It’s very sturdy tho and is chew resistant. I guess I didn’t pay attention to the size. Looked big in the picture.
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Reviewed in the United States on April 18, 2026
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