Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Your cart
-
0-9
-
A
-
B
-
R
-
S
ACL
ACL BMW 2011-2018 N63/S63 V8 Standard Size High Performance Rod Bearing Set w/ .001" Oil Clearance (4.4L) - 8B1578HX-STD
$392.27
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2011-2018 BMW 550i, 550i GT, 650i, 750Li, M6, X5, and X6 models (4.4L N63/S63 V8 engines).
This ACL High Performance connecting rod bearing set is engineered specifically for the BMW N63 and S63 V8 engines. This HX-series set is designed with an additional 0.025mm (0.001") of oil clearance compared to a standard bearing. This increased clearance is a critical modification for high-performance builds, allowing for improved oil flow and a more robust hydrodynamic film to protect the crankshaft journals under high-load or high-RPM conditions.
- Manufacturer Part Number: 8B1578HX-STD
- Engine Fitment: BMW N63B44 4.4L (4395cc) V8
- Size: Standard with extra .001" (.025mm) oil clearance
- Application: High-performance and racing use
- Quantity: Complete set for one V8 engine
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2016 | BMW | 550i | Base |
| 2013-2015 | BMW | 550i GT | Base |
| 2013-2018 | BMW | 650i | Base |
| 2013-2015 | BMW | 750Li | Base |
| 2012-2018 | BMW | M6 | Base |
| 2013-2018 | BMW | X5 | xDrive50i |
| 2011-2014 | BMW | X6 | xDrive50i |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
ACL BMW 2011-2018 N63/S63 V8 Standard Size High Performance Rod Bearing Set w/ .001" Oil Clearance (4.4L) - 8B1578HX-STD
$392.27
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
$392.27
$392.27
$392.27
Fits select 2011-2018 BMW 550i, 550i GT, 650i, 750Li, M6, X5, and X6 models (4.4L N63/S63 V8 engines).
This ACL High Performance connecting rod bearing set is engineered specifically for the BMW N63 and S63 V8 engines. This HX-series set is designed with an additional 0.025mm (0.001") of oil clearance compared to a standard bearing. This increased clearance is a critical modification for high-performance builds, allowing for improved oil flow and a more robust hydrodynamic film to protect the crankshaft journals under high-load or high-RPM conditions.
- Manufacturer Part Number: 8B1578HX-STD
- Engine Fitment: BMW N63B44 4.4L (4395cc) V8
- Size: Standard with extra .001" (.025mm) oil clearance
- Application: High-performance and racing use
- Quantity: Complete set for one V8 engine
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2016 | BMW | 550i | Base |
| 2013-2015 | BMW | 550i GT | Base |
| 2013-2018 | BMW | 650i | Base |
| 2013-2015 | BMW | 750Li | Base |
| 2012-2018 | BMW | M6 | Base |
| 2013-2018 | BMW | X5 | xDrive50i |
| 2011-2014 | BMW | X6 | xDrive50i |
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.
