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Description
Gates Polyflex JB Belts 3/5M850JBPart # 3 5M850JB Product # 89123850 Description 3 5M850JB POLYFLEX UPC 072053262421 Cross Section 5MJB Effective Length (in) 33. 46 Effective Length (mm) 850 Notched false Outside Circumference (in) 33. 64 Outside Circumference (mm) 855 Section 5MJB Strand 3 Top Width (in) 0. 6 Top Width (mm) 15
| Part # | 3/5M850JB |
|---|---|
| Product # | 89123850 |
| Description | 3/5M850JB POLYFLEX |
| UPC | 072053262421 |
| Cross Section | 5MJB |
| Effective Length (in) | 33.46 |
| Effective Length (mm) | 850 |
| Notched | false |
| Outside Circumference (in) | 33.64 |
| Outside Circumference (mm) | 855 |
| Section | 5MJB |
| Strand | 3 |
| Top Width (in) | 0.6 |
| Top Width (mm) | 15 |
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
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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
4.6 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Good deal on spark plugs
They worked perfectly for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Better running mower
Seems to work fine and runs great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 4
Perfect Spark Plug
Perfect match for my lawnmower. Worked as soon as I placed it on. Great product. Thank you Amazon for the product. Fast, correct product, and affordable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
★★★★★ 5
Cost-effective alternative that works well..
I used these spark plugs on my 2018 Cub Cadet XT2 riding mower as part of the spring preparation. The spark plugs were well packed and arrive in great shape and at the appropriate gap. No issues with starting or operating the mower. These Harbot plugs turned out to be a great cost-effective option for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
★★★★★ 5
They work great.
The spark plugs are an exact replacement for my riding mower.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
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