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Description
Gates Tri-Power PowerBand Belts 7/BX131Part # 7 BX131 Product # 90987131 Description 7 BX131 TRI POWER POWERBAND UPC 770075611967 Cross Section BX Effective Length (in) 133. 88 Effective Length (mm) 3401 Outside Circumference (in) 134. 89 Outside Circumference (mm) 3426 Section BX Strand 12 Top Width (in) 8. 93 Top Width (mm) 227 Angle. 38
| Part # | 7/BX131 |
|---|---|
| Product # | 90987131 |
| Description | 7/BX131 TRI-POWER POWERBAND |
| UPC | 770075611967 |
| Cross Section | BX |
| Effective Length (in) | 133.88 |
| Effective Length (mm) | 3401 |
| Outside Circumference (in) | 134.89 |
| Outside Circumference (mm) | 3426 |
| Section | BX |
| Strand | 12 |
| Top Width (in) | 8.93 |
| Top Width (mm) | 227 |
| Angle. | 38 |
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.6 ★★★★★
Based on 106 reviews
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Product Reviews
★★★★★ 5
Great oil and makes my engine run quieter
I noticed the engine running much quieter using this oil. The pour mouth is pretty unique for this brand, you can just open the interior cap, pull up the accordion neck and pour into the engine which provides better control over traditional wide mouth, thus less messy. This oil rarely goes on sale and is typically 1.5x to 2x more expensive than the more common US brands.
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Reviewed in the United States on August 28, 2025
★★★★★ 5
Best synthetic oil BMW
Excellent synthetic oil BMW 328I
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Last long
Love it ! Since I have a BMW this oil it’s good for it .
The Price is good . Last long . No engine noise
Or oil burning. Even the color looks good after 3 months.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
FRIENDLY REMINDER Don't overtighten the bolts
MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Strong product
Great quality
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Reviewed in the United States on March 11, 2026