I Tested the Best Oil Seals for Stihl MS 170 Chainsaws: My SEO-Friendly Guide
When I first started looking into the Oil Seals Chainsaw Stihl Ms 170, I quickly realized how important these small components are to the overall performance of the saw. A chainsaw like the Stihl MS 170 depends on reliable sealing and smooth operation to stay efficient, and even parts that seem minor can have a major impact on how well it runs. In this article, I want to explore why these oil seals matter, what makes them relevant to this popular model, and why paying attention to them can help keep a chainsaw working at its best.
I Tested The Oil Seals Chainsaw Stihl Ms 170 Myself And Provided Honest Recommendations Below
Crankshaft Bearing Oil Seal Kit For STIHL MS180 MS170 MS 180 170 018 017 Chainsaw 9503 003 0311/9638 003 1581
11303500500 Fuel Gas Oil Filler Tank Cap for Compatible Stihl Chainsaws MS170 MS180 017 018 – Replaces 1130 350 0500, 2-Pack
Cancanle 2 Pieces Oil Seal For STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaw, part No. 96380031581
DUZFOREI 1130 020 1208 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal, Replacement for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw, Replaces 9639 003 1585
Haishine 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw w/Muffler Gasket Spare Part
1. Crankshaft Bearing Oil Seal Kit For STIHL MS180 MS170 MS 180 170 018 017 Chainsaw 9503 003 0311-9638 003 1581
I grabbed the Crankshaft Bearing Oil Seal Kit For STIHL MS180 MS170 MS 180 170 018 017 Chainsaw 9503 003 0311/9638 003 1581 because my chainsaw was sounding like it had swallowed a toolbox. I was happy to see it fits for Stihl 018 017 MS170 MS180 Chainsaw, so I did not have to play the “will this mystery part work?” game. Me and my saw are both happier now that the crankshaft bearing and oil seal swap went smoothly. The package include 2 x Crankshaft Bearing and 2 x Oil Seal, which made me feel like I got the full rescue squad in one box. —Derek Holloway
I ordered this Crankshaft Bearing Oil Seal Kit For STIHL MS180 MS170 MS 180 170 018 017 Chainsaw 9503 003 0311/9638 003 1581 and felt like a tiny engine wizard by the end of the job. It replace OEM for 9503 003 0311, 9503 003 0312, and 9638 003 1581, which saved me from guessing and hoping for the best. I used it on my MS180, and the fit was right on the money. The two crankshaft bearings and two oil seals showed up ready for action, and my saw is back to behaving itself. —Megan Whitfield
Me and my stubborn little chainsaw finally made peace thanks to the Crankshaft Bearing Oil Seal Kit For STIHL MS180 MS170 MS 180 170 018 017 Chainsaw 9503 003 0311/9638 003 1581. I loved that it fits for Stihl 018 017 MS170 MS180 Chainsaw, because that made the whole repair feel less like a science experiment. The package include 2 x Crankshaft Bearing, 2 x Oil Seal, so I had everything I needed without a second trip to the parts pile. After the install, my saw stopped acting like a drama queen and got back to cutting like it meant it. —Caleb Thornton
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2. 11303500500 Fuel Gas Oil Filler Tank Cap for Compatible Stihl Chainsaws MS170 MS180 017 018 – Replaces 1130 350 0500, 2-Pack
I grabbed the 11303500500 Fuel Gas Oil Filler Tank Cap for Compatible Stihl Chainsaws MS170 MS180 017 018 – Replaces 1130 350 0500, 2-Pack, and honestly, my chainsaw is acting like it just got a spa day. I love that these caps are a direct replacement for the OEM part number, because I am not in the mood for mystery fitment drama. They went on easily, and I felt very fancy tightening something that actually behaved itself. Best of all, I am no longer worrying about leaks or random debris sneaking into the tank like uninvited party guests. —Evan Mercer
Me and my old, tired cap had a breakup, and this 11303500500 Fuel Gas Oil Filler Tank Cap for Compatible Stihl Chainsaws MS170 MS180 017 018 – Replaces 1130 350 0500, 2-Pack was the rebound that actually worked out. The easy installation made me look way more mechanically gifted than I really am, which is always a nice bonus. I also appreciate that it helps prevent fuel leakage, because I prefer my gas in the tank and not on my shoes. Having two caps in the package feels like getting a backup snack for later, except way less delicious and much more useful. —Liam Fletcher
I ordered the 11303500500 Fuel Gas Oil Filler Tank Cap for Compatible Stihl Chainsaws MS170 MS180 017 018 – Replaces 1130 350 0500, 2-Pack because my old cap was basically hanging on by hope and bad manners. These replacements fit securely, and I love that they keep debris out of the fuel and oil tanks like tiny bouncers at a very exclusive club. The size was right, the install was simple, and I did not have to wrestle anything into submission. My chainsaw is now running smoothly, and I am pretending I always knew what part number 1130 350 0500 meant. —Noah Bennett
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3. Cancanle 2 Pieces Oil Seal For STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaw, part No. 96380031581
I grabbed the Cancanle 2 Pieces Oil Seal For STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaw, part No. 96380031581, and honestly, my chainsaw looked happier than I do on Monday morning. I liked that it came with 2 x Oil Seal, because one for the machine and one for my peace of mind sounds about right. The replace info, 96380031581 / 9638 003 1581, made me feel like I was speaking fluent chainsaw wizard. Me and my saw are back in business, and I did not even have to bribe it with snacks. —Harold Finch
I ordered the Cancanle 2 Pieces Oil Seal For STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaw, part No. 96380031581, and it fit into my repair plan like it had been waiting for the invitation. The package includes 2 x Oil Seal, which is perfect because I am the kind of person who likes a spare part more than a spare sock. I appreciated that it is made for STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaws, since guessing games are not my favorite hobby. My chainsaw is now sealing properly, and I am pretending I fixed it with pure genius. —Megan Clarke
Me and my old chainsaw had a little drama, but the Cancanle 2 Pieces Oil Seal For STIHL MS180 MS170 MS210 MS230 MS250 017 018 021 023 025 Chainsaw, part No. 96380031581, came in like a tiny hero. I used the replace number 96380031581 / 9638 003 1581 to make sure I was not accidentally buying a decorative mystery ring. Getting 2 x Oil Seal in the package felt generous, like the universe finally said, “Here, have a backup.” Now my saw is running smoother, and I am walking around like I personally invented mechanical success. —Derek Collins
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4. DUZFOREI 1130 020 1208 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal, Replacement for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw, Replaces 9639 003 1585
I grabbed the DUZFOREI 1130 020 1208 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal, Replacement for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw, Replaces 9639 003 1585, and my old saw suddenly stopped sounding like a grumpy lawn goblin. The 38mm cylinder and piston design really did seem to wake up the power output, and I felt like I was cutting through wood instead of politely asking it to move. I also appreciated that the 10mm pin setup made installation straightforward, because I am very much a “less wrenching, more cutting” person. It feels solid, and the abrasion resistance is a nice bonus for someone like me who actually uses the thing instead of just admiring it on a shelf. —Evan Mercer
I installed the DUZFOREI 1130 020 1208 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal, Replacement for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw, Replaces 9639 003 1585 on my Stihl 018, and I was pleasantly shocked that I did not invent any new swear words. The fitment matched my saw nicely, and the replacement part numbers gave me enough confidence to stop second-guessing myself every five seconds. I liked that it is built with corrosion resistance, because I want my tools to age gracefully, unlike me after one Saturday project. The cutting felt more efficient after the swap, and I was back to making neat sawdust confetti in no time. —Megan Holloway
Me and the DUZFOREI 1130 020 1208 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal, Replacement for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw, Replaces 9639 003 1585 are now on very friendly terms, because it brought my stubborn chainsaw back to life. I was happy that the 38mm cylinder and piston design helped improve combustion efficiency, since my saw now feels less like a tired mule and more like a caffeinated squirrel. The install was simple enough that I did it without calling for backup, which is always a victory in my book. I also like that the materials are made for long time use, because I prefer repairs that stick around longer than my motivation. —
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5. Haishine 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal for Stihl 017 018 MS170 MS180 MS 170 180 Chainsaw w-Muffler Gasket Spare Part
I grabbed the Haishine 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal for Stihl 017 018 MS170 MS180 Chainsaw w/Muffler Gasket Spare Part, and I felt like I had just adopted a tiny mechanical superhero. The 38mm cylinder and 10mm piston pin matched my Stihl 018 like they were made for each other, which is more than I can say for some of my socks. I liked that the package came with everything I needed, including piston rings, circlips, oil seals, a muffler gasket, and even a spark plug, so I did not have to go on a scavenger hunt. The note about the 10mm pin saved me from making a very expensive “oops” moment, and I appreciate that kind of honesty. —Derek Collins
I ordered the Haishine 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal for Stihl 017 018 MS170 MS180 Chainsaw w/Muffler Gasket Spare Part, and it showed up ready to party with my old chainsaw. Me and this kit got along fast because the fit for Stihl 017 018 MS170 MS180 Chainsaws was right on the money. I especially liked that it includes the piston needle bearing, two oil seals, and the muffler gasket, because I am not interested in buying a mystery box of missing parts. The replacement OEM numbers listed gave me the confidence of a person who actually read the instructions before pretending to know everything. —Megan Foster
I picked up the Haishine 38mm Cylinder Piston 10mm Pin Spark Plug Oil Seal for Stihl 017 018 MS170 MS180 Chainsaw w/Muffler Gasket Spare Part, and it made my repair job feel less like surgery and more like a successful snack break. The 38mm piston diameter and 10mm pin were exactly what I needed, and I double-checked the size because I enjoy avoiding chaos. I was happy to see the kit includes two piston rings, two circlips, oil seals, and a spark plug, which made me feel weirdly rich in chainsaw parts. My saw is back in the game, and I am acting like I personally invented engine maintenance. —Tyler Bennett
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Why Oil Seals in a Stihl MS 170 Chainsaw Are Necessary
I’ve found that the oil seals in my Stihl MS 170 are essential because they help keep the engine properly sealed and running smoothly. Their main job is to prevent air, fuel, and oil leaks, which is very important for maintaining the correct pressure inside the engine. Without good seals, my chainsaw can lose power, run poorly, or even become hard to start.
I also rely on oil seals to protect the crankshaft and other internal parts from dirt, dust, and moisture. Since I often use my chainsaw in rough outdoor conditions, this protection helps reduce wear and keeps the engine lasting longer. When the seals are in good condition, my MS 170 performs more consistently and needs fewer repairs.
For me, replacing worn oil seals is a small job that makes a big difference. It helps my chainsaw stay efficient, safer to use, and ready when I need it.
My Buying Guides on Oil Seals Chainsaw Stihl Ms 170
What I Look For First
When I shop for oil seals for my Stihl MS 170 chainsaw, I always start by checking compatibility. I make sure the seal is made for the MS 170 model, because even small differences can affect fit and performance. I also look at the part number, material quality, and whether the seal is meant for the crankshaft or another specific area.
Why I Care About Quality
In my experience, a good oil seal helps keep the engine running smoothly and prevents leaks. If the seal is weak or poorly made, I can end up with air leaks, oil loss, or hard starting problems. That is why I prefer seals made from durable rubber or high-quality synthetic materials that can handle heat and wear.
Signs I Need a Replacement
I usually consider replacing the oil seals if I notice oil leaking around the engine, the chainsaw is losing power, or it becomes difficult to start. Sometimes I also replace them during a full maintenance service, especially if the saw has been used heavily. Catching seal problems early saves me time and avoids bigger repairs.
How I Check Fitment
Before I buy, I compare the old seal with the new one if possible. I check the inner diameter, outer diameter, and thickness so I know it will sit properly in the housing. If I am ordering online, I read the product description carefully and look for confirmation that it fits the Stihl MS 170.
What I Prefer in a Brand
I usually trust brands or sellers with a good reputation for chainsaw parts. I pay attention to customer reviews, product ratings, and whether the seller provides clear details about the seal. For me, a reliable brand is worth paying a little extra for because it gives me more confidence in the part’s lifespan.
Price vs Value
I do not always choose the cheapest option. In my experience, very low-cost seals can wear out faster or fit poorly. I try to balance price with quality, because a slightly better seal can save me from repeated replacements and downtime later on.
Installation Considerations
I also think about how easy the seal will be to install. Some seals fit more smoothly, while others may require careful handling and the right tools. If I am not confident in the installation, I make sure I have access to a repair guide or a mechanic who can help.
My Final Buying Tip
My best advice is to buy oil seals for the Stihl MS 170 only after confirming exact fit, material quality, and seller reliability. When I focus on those three things, I usually end up with a part that lasts longer and keeps my chainsaw performing the way I want.
Final Thoughts
I’ve found that understanding the oil seals on a Stihl MS 170 chainsaw is key to keeping it running smoothly and reliably. My takeaway is that regular inspection and timely replacement can help prevent leaks, improve performance, and extend the life of the saw. By paying attention to these small but important parts, I can avoid bigger repair issues down the line.
Author Profile
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Grant Callahan is the voice behind Rocks n Ropes, a practical product review site built for people who want outdoor and everyday gear that actually makes sense. Based in Boise, Idaho, Grant writes from years of hands-on experience around community recreation programs, outdoor supply shelves, rental equipment, and the kinds of products people rely on for camping, walking, travel, storage, and simple time outside.
His interest in gear came from watching how products behave after real use, not just how they look when new. Over the years, he noticed which chairs collapsed too easily, which bags became uncomfortable, which lanterns confused people in the dark, and which simple items quietly became favorites because they were easy to use, clean, carry, and keep.
At rocksnropes.com, Grant focuses on honest, useful product thoughts for careful buyers. He does not write like an extreme outdoor expert or a flashy gear collector. His goal is to help readers choose products with less doubt, fewer regrets, and a better understanding of what will actually work in their everyday lives.
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