SKU: 37655802231

Stihl Ms171 Piston 37mm, Replaces Stihl Part # 1139 030 2003

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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

Stihl Ms171 Piston 37mm, Replaces Stihl Part # 1139 030 2003Stihl Ms171 Replacement Piston 37mm, Replaces Part # 1139 030 2003, Note This Kit Is Not Made In China. This Is A Very High Quality Replacement Cylinder Piston Kit. Material The factories use the highest grade material coming from Japan. This is AC4B. 2. Coating Before coating, all performance saw cylinders are put through 13 preliminary processes to ensure maximum penetration, thickness and coverage. Coating thickness is . 04 . 06 mm of chrome which

Stihl Ms171 Replacement Piston 37mm, Replaces Part # 1139 030 2003, Note This Kit Is Not Made In China. This Is A Very High Quality Replacement Cylinder Piston Kit. Material- The factories use the highest grade material coming from Japan. This is AC4B. 2. Coating- Before coating, all performance saw cylinders are put through 13 preliminary processes to ensure maximum penetration, thickness and coverage. Coating thickness is .04-.06 mm of chrome which increases the life of the cylinder. 3. Machining- Complete machining on all cylinders is performed by accurate CNC tool machines. 4. Die-Casting- All cylinders are made by slow gravity fed die-casting. This increases the weight of the cylinder which enhances the performance and life of the rebuild. 5. Tooling- Each cylinder tooling has limited life and are replaced after the manufacturing of 50,000 pieces. All tooling is checked on a monthly basis. 6. Quality Control- Special inspection is done on every cylinder inlet and exhaust port which includes chamfering of all burrs. Every 20th cylinder that comes off of the production line in thoroughly inspected for accurate tolerances. cylinders & pistons are manufactured by factories that have over 30 years of experience in the cylinder & piston industry. They provide OEM chainsaw suppliers (Western, European, & Chinese) as well as OEM for motorcycle companies. You can expect three times more life out of our cylinders & pistons than our cheaper competitors. Most of the cheap Chinese cylinders that we see look good, fit okay, but do not last because they don't go the extra length to ensure good quality. Note: We recommend when rebuilding 2-cycle equipment that you use a piston ring compressor kit to ensure professional results.

  • Stihl Ms171 Piston 37mm
  • Replaces Stihl Part # 1139 030 2003
  • NOT MADE IN CHINA OR TAIWAN
  • **Family run business with 25 years of repair experience and parts sales
  • **We strive to provide high quality parts and excellent customer service!
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 37655802231

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4.2 ★★★★★
Based on 19 reviews
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M
Verified Purchase
meganlyra
Natrona Heights, US
★★★★★ 5
Better than my new fancy robo
Great suction power. Doesn't get stuck often. I've had this vacuum for 5 years and it still works great. We got an AirRobo with a mop feature and demoted the Eufy to the basement. But, the eufy works way better and I frequently bring it upstairs to pre-clean before the AirRobo. Love this vacuum! Do you have a version with a mop?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
B
Verified Purchase
Brandon N
Lake Worth, US
★★★★★ 5
The best little helper!
Size: eufy L60 SES (renewed)
I've never owned a robot vacuum prior to this, and was somewhat curious on how it would work, and what it would really do in my small home. I got the L60 refurbished unit, and it came in a brand new box and it looked brand new when I removed it from the packaging. I charged it up, setup the app and connected it to Wi-Fi, ran a cycle and it was all so easy. It mapped my home and it is was off! It does an absolutely fantastic job. I run it daily and can notice just how much cleaner my hardwood floors are. We have a cat who is intrigued by it, but it does a fantastic job of cleaning up the litter that is tracked from his litter box. That alone is a lifesaver. I will run it in the morning and at night in cats area to keep the hair and litter completely cleaned up. So far I've only had a few small issues where it got stuck, twice from items left out, and once from a dirty sensor. You really need to make sure you have things put away and have the areas picked up, especially of cat toys and shoe laces, and once in a while wipe the sensors off if they get really dusty. I highly recommend this, it truly has been a huge help just in daily pickup and keeping the house clean. Its absolutely worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
K
Verified Purchase
Kayla P
Battle Creek, US
★★★★★ 5
Good buy
Works well with my Eufy C10, very easy to install
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Reviewed in the United States on March 26, 2026
C
Verified Purchase
Cory the person
Port Orchard, US
★★★★★ 1
Filter is too small for full coverage
Filters are not the correct size, too small. Not worth the risk. Brush arm bristles were also all bent up.
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Reviewed in the United States on May 13, 2026
I
Verified Purchase
Ipad_user_2
West Palm Beach, US
★★★★★ 2
Filters are the wrong size for the Eufy C10 vacuum
The air filters are smaller than the stock air filter. They will probably work if they are stretched out a bit, but as delivered, are unacceptable. The roller and the sweeper are good. Poor filter fit. Original filter size: 1.75 inch by 3.65625 inch. The filters in this set are 1.25 inch by 3.5 inch. Too small.
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Reviewed in the United States on May 28, 2026

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