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1-1/2" Bore Chain Coupling Sprocket For RC50-2 Chain (18 Teeth) - With Keyway & Set Screw

Marsoni M251S
Sale price$30.13
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1-1/2" Bore Chain Coupling Sprocket For RC50-2 Chain (18 Teeth) - With Keyway & Set ScrewProduct Details : 1 1 2" Bore Chain Coupling Sprocket For RC50 2 Chain (18 Teeth) With Keyway & Set Screw Part No: CB5018L Series: 5018 For Chain: RC50 2 No. Of Teeth: 18 Outside Diameter (IN): 4 3 16" Bore (IN): 1 1 2" Square Key Width: 3 8" Square Key Depth: 3 16" Set Screw Size: 3 8" L (IN): 3. 925" A (IN): 2. 894" B (IN): 1. 772" C (IN): 0. 382" Weight (LBS): 8. 36 lbs Material(s): Carbon Steel For any information about products, please contact
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4.8 ★★★★★
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RichD
Lexington, US
★★★★★ 5
OEM quality
BMW dealer wanted $300 to replace the cabin filters. Watched a 5 minute video and ordered these up. Look identical to OEM and easiest cabin filters I've installed. Save yourself a ton of money and install these yourself. BMW quality without the BMW price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025
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Dmytro Sushynskyi
San Leandro, US
★★★★★ 5
Great filter!
Excellent filter! Fits my 2017 BMW X5 f15. Eliminates all external odors from the street.
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Reviewed in the United States on November 23, 2025
S
Verified Purchase
Shahida M Parveen
Lowell, US
★★★★★ 4
Fits bmw x5 35i 2015
Installation was pretty easy. Works as designed. Will update.
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Reviewed in the United States on July 16, 2023
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MLG
Bozeman, US
★★★★★ 5
Great price
I love Mann filters. Great for the price and great quality. I was surprised how cheap they were ( my car takes 2 filters and two come in the box). They fit like a glove and now I am enjoying fresh air
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Reviewed in the United States on March 30, 2026
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Erik Pontes
Pawtucket, US
★★★★★ 5
Can’t beat MANN quality
Bought to replace the filters on my 2015 bmw x5 as there was a musty smell from ac. Old filters were another junk company that fit very loosely. I was impressed by the quality and how secure the MANN filters locked into the housing; musty smell all gone now! Easy 10min replacement job, comes with VERY detailed instructions for the less mechanically inclined
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Reviewed in the United States on April 12, 2024

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