ACL High Performance Main Bearings for Mazda B6/BP/BP-T 1.6/1.8L Engines
A unique combination of design, metallurgy, and engineering delivers what drivers expect from high-performance Trimetal engine bearings. Designed to withstand higher RPM conditions, ACL Race Series engine bearings are available for many popular 4, 6, and 8-cylinder applications.
Features
- High-strength overlay plate with reduced thickness for improved fatigue properties
- Hardened steel backs on all connecting rod bearings to improve bearing lining support and facilitate bearing retention within the housing
- Increased crush for improved bearing retention
- Elimination of flash plating on the back of the bearings to improve heat transfer through the bearing and maximize grip between the bearing and the housing
- Increased eccentricity to compensate for bore distortion at high RPM and assist in the formation of a hydrodynamic oil film
- 3/4 grooved main bearings to optimize bearing load-carrying surface area and oil flow to connecting rod bearings
- Tight and consistent wall tolerances to maintain consistent clearances
- Enlarged ID chamfers on bearing edges to accommodate the large fillet radii of performance crankshafts
Specifications
- Oil Clearance: Standard
- Half Type: Identical Halves
- Material: Trimetal Hardened Steel Back
- Min. Standard Shaft Size: 1.9661 in / 49.938 mm
- Max. Standard Shaft Size: 1.9668 in / 49.956 mm
- Min. Standard Tunnel Size: 2.1259 in / 53.998 mm
- Max. Standard Tunnel Size: 2.1267 in / 54.018 mm
- Max. Wall at Crown: 0.0793 in / 2.013 mm
- Max. Length: 0.6941 in / 17.63 mm
Applications
- Mazda B6/BP/BP-T 1.6/1.8L Engines
What's in the box?
- 10 - Main Bearings
Warranty
- ACL Limited 12-Month/12,000-Mile Warranty
Before Ordering
〇 About Import Consumption Tax
At Shaft-ya, we pay the import consumption tax incurred during customs clearance on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇Confirmation of Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm whether the product is compatible with Japanese domestic vehicles (JDM) before ordering. (If you are unsure whether a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to check for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, make, and model using the tabs on our top page, this does not guarantee that they will fit Japanese market vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
Essentially, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow plenty of time for your order. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all items are transported via air freight. We do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are designed and manufactured outside of Japan. Please note that they do not conform to the "Japanese Vehicle Inspection System," and we are unable to provide documents such as strength calculation reports for Japanese inspection purposes. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be instances of shipping damage to the packaging or the product itself. We will handle returns, refunds, or replacements for damaged, defective, or incorrect items only if you notify us within 7 days of receipt. Please understand that for products sold through us, warranty support will be handled "exclusively through us." We do not provide support through other companies or distributors located within Japan.