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Description
Lower Unit Seal Kit – Fits Johnson/Evinrude 85/100/125 HP Large Prop Shaft 1971-1972 (Replaces 18-2691)Lower Unit Seal Kit Fits Johnson Evinrude 85 100 125 HP Large Prop Shaft 1971 1972 This lower unit seal kit is designed for Johnson Evinrude 85, 100, and 125 HP outboard engines (19711972) equipped with the large propeller shaft. It provides the necessary components to restore seals and prevent water intrusion or oil leaks in the gearcase. It serves as a direct replacement for several aftermarket part numbers, including Sierra 18 2691, GLM 87611, and
Lower Unit Seal Kit – Fits Johnson/Evinrude 85/100/125 HP Large Prop Shaft 1971-1972
This lower unit seal kit is designed for Johnson/Evinrude 85, 100, and 125 HP outboard engines (1971–1972) equipped with the large propeller shaft. It provides the necessary components to restore seals and prevent water intrusion or oil leaks in the gearcase.
It serves as a direct replacement for several aftermarket part numbers, including Sierra 18-2691, GLM 87611, and Mallory 9-74114.
- Engine Compatibility: Fits specific 2-Stroke Johnson/Evinrude V4 engines from 1971-1972.
- Installation Type: Direct replacement for OEM and aftermarket equivalents.
- Key Feature: Specifically for models using the large prop shaft.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude (OEM) | 433550 |
| Sierra | 18-2691 |
| GLM | 87611 |
| Mallory | 9-74114 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | 85193A | 85 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 85193H | 85 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 85293R | 85 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 85ESL71 | 85 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 85ESL72 | 85 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 100193A | 100 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 100193C | 100 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 100293 | 100 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 100ESL71 | 100 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 100ESL72 | 100 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 125183C | 125 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 125283R | 125 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 125ESL71 | 125 | 2-Stroke | 1971 | 433550 | Large Prop Shaft |
| Johnson/Evinrude | 125ESL72 | 125 | 2-Stroke | 1972 | 433550 | Large Prop Shaft |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Lower Unit Seal Kit |
| Installation | Direct replacement |
| Other Technical Attributes | Large prop shaft version |
Package Contents
- 1 x Solenoid Cover Gasket (Replaces 0314876, 0777572, 18-2874)
- 2 x Oil Seal (Replaces 0330137, 0310600, 0321463, and others)
- 2 x Oil Seal (Replaces 0321466, 0313337, 0318223, and others)
- 2 x Drain/Fill Plug Washer (Replaces 0311598, 3852105, 18-4248)
- 4 x O-Ring Seal (Replaces 0317178, 0777520, 18-7109)
- 1 x O-Ring (Replaces 0313446, 0765593, 18-7127)
- 1 x O-Ring (Replaces 0354731, 0314728, 0777532, and others)
Installation Guide
- Begin by draining the gearcase oil completely into a suitable container.
- Remove the propeller and unbolt the lower unit from the outboard motor's leg.
- Disassemble the gearcase to gain access to the driveshaft and prop shaft seals. Pay close attention to the order and orientation of components as you remove them.
- Carefully extract the old, worn seals and O-rings from the gearcase housing and carrier, avoiding scratches to the sealing surfaces.
- Thoroughly clean all sealing surfaces, removing any old adhesive, corrosion, or debris.
- Lightly lubricate the new seals and O-rings with marine grease before installation. This aids in seating and prevents damage.
- Using an appropriate driver or socket, press the new seals into place until they are fully and evenly seated. Ensure they face the correct direction to hold pressure.
- Carefully reassemble the gearcase components in the reverse order of disassembly.
- Re-install the lower unit onto the engine and attach the propeller.
- Refill the gearcase with manufacturer-specified lower unit oil to the correct level, using new drain/fill plug washers from the kit.
- Before operating in water, check for any signs of oil leaks around the newly installed seals and plugs.
Troubleshooting & FAQ
Q: How can I be sure this seal kit fits my specific Johnson/Evinrude engine?
A: This kit is specifically for 85, 100, and 125 HP Johnson/Evinrude models from 1971-1972 that use the large prop shaft. The most reliable method is to verify your engine's model and year against our "Compatible Engine Models" table. Using our Johnson/Evinrude Serial Number Guide can also help confirm your engine's details.
Q: What are the common signs that my lower unit seals are failing?
A: The most common sign is milky or cloudy gearcase oil, which indicates water has mixed with the oil. Other symptoms include visible oil leaks around the propeller shaft, water dripping from the gearcase, or finding you need to frequently top off the gear oil.
Q: Are special tools required for this installation?
A: While the job can be done with standard mechanic's tools, using a dedicated seal puller for removal and a proper seal driver set for installation is highly recommended. These tools help prevent scoring the gearcase housing or damaging the new seals upon entry.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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
- 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
4.3 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 3
I think this book will give many beginners a good quick start into Python programming
A review of "Python: QuickStart Guide by Robert Oliver"
Published by ClydeBank Media
Copyright (c) 2023
ISBN-13: 978-1-63610-038-8
First Edition: Last Updated: April 24, 2023
In summary - I feel this book has missed some opportunities, is trying to be “cute" and is somewhat lacking in detail in some of the beginning explanations. However … this book starts at the bottom and builds you up. When you are done … while not quite a Python Expert you will be well on the way. It really is a good overview of Python and covers a lot of ground; while it does leave out some things I would have liked to see, [cough cough turtle graphics — turtles make a great introduction to objects … even if they may have taken a detour to the application you end up with at the end] you can’t put every everything including the kitchen sink in a book like this.
Most of the things I would have liked to see differently are just nit-picky: they have these little icons (Note, quckclip, detour, etc.) … things like that should be DEFINED before they show up — the introduction is the perfect place to do that; that that isn’t done bugs me. That he brings up “X” as in Algebra isn’t really needed, programming variables are known quantities for the most part, and are more like the names for things, or the name of a box that contains something … the “variables” in Python has little to do with the variables in Algebra which are unknowns you are trying to solve for.
As example of missing “essential” detail: In the discussion of data types such as integers, and floating point numbers, and strings but don’t discuss magnitude and precision for the numerical datatypes. Not everyone needs to know that in integers basically have as much precision as you have allowed it memory to run. This isn’t “normal” in most other languages and is a nifty feature of Python. I have used it to compute really large numbers such as the 1 millionth Fibonacci number, or the 33rd perfect number (it has over half a million digits, and is very simple in Python[see the short code at the end of this review for another example]). It doesn’t discuss comparison operators for objects you create (I feel that is an important topic, but may be more advanced that this introductory book is designed for - and actually isn't NEEDED but would have been a nice thing to mention). On the other hand the discussion of Python data structures really was very clear.
While it does discuss and use objects, the discussion really isn’t in-depth. But that is OK as this is a quick start guide, not an in-depth reference book. You could (and will later if you go on) find enough to fill a book half this size talking about the details of Python Object Oriented programming ([P]OOP).
This one may not be a nit if they are older: The format is somewhat difficult to read when it comes to the code examples. Code examples are highlighted in gray, this lowers the contrast and unless well lighted makes it harder to read, so make sure you read it in a well lit room or use a book light. Bolding the highlighted text would probably solve this issue. The binding is great (it is spiral bound) and even being somewhat thick, every page lies flat — this makes it easy to use for when you are copying the code examples to your computer. The code can be downloaded, but I would recommend that you type everything in. Errors made by having your typed code not be what you intended to type in are a common source of errors and learning how to find and correct those sorts of errors now will save you a lot of problems.
The book isn’t just introductory material, but gets into some fairly advanced topics such as databases, test driven development, and using GIT. The book does do a good job about more “advanced” topics. It talks about some features of Python while just a few years old may not have been know to some older Python Developers (like dataclass, or Lamda expressions). It provides you an introduction to developing websites, and interacting with the web, multiprocessing, optimization, and error handling to name a few. I really think topics that may stump some people the author has explained clearly and concisely the make the topics easy to grasp.
One thing that surprised me is that it didn’t talk about the philosophy of Python in the introduction…
No braces {} or semicolons, but you do need the occasional colon
Whitespace, indentation, and blank lines MATTER in Python. That needs to be hammered in (really).
One simple way of doing things (not a lot of different ways to do the same thing).
And the name Python comes from the Monty Flying Circus kind and not the Reptile kind (even though a lot of Python “stuff” has the snake kind on it).
It doesn’t talk about Python 2. Python 2 and 3 are different Code bases, They eventually stopped “improving” Python 2 and Python 3 is the one true version of Python, it should at least have a mention.
The phylosophy is important because in Python white space in really important, and that is part of the philosophy of Python that should be covered. This is probably one of the things that messes people up most in the beginning (and that case matters — cow and COW are not the same, as they are in a lot of cases in Windows machines).
Here is an example of case mattering: (not from the book).
>>> cow=3
>>> cow==COW
Traceback (most recent call last):
File "", line 1, in
NameError: name 'COW' is not defined. Did you mean: 'cow'?
Here are some things to try once you get your Python installed that show a bit of Python Humor…(also not from the book)…
>>> import this
The Zen of Python, by Tim Peters
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!
>>>
Or try
import antigravity
Python is a fun programming language to learn and it probably the best language for a beginner. Python is a fairly easy to learn programming language, and Mr. Oliver’s brief look back at BASIC is fitting. I do think that Python, in may ways, really is the new BASIC.
In conclusion: This book does provide you a step by step learning path, if followed will get you a lot more knowledgeable about Python, while fairly wide it isn’t always as deep as I would like. The Python QuickStart Guide(r) is like one of those tour packages, it covers all the things you need to see but sometimes you wish you could linger a bit more on a topic. The Coffee Shop game that you work in throughout most of the book is interesting and leads to some good topics and gets you in to some really good practices so you start out right.
The author has provided a video the help you get going which will help you over the rough beginning spots. If you take the time, and follow the book step by step, I think you will be pleased with your progress, and will be able to do some fun stuff quickly. Just remember to do a little bit every day, because learning to program is like learning any language — practice makes perfect.
PS: You might want to try this to see just how easy it is in Python to work with large integers:
f=1
for x in range (1, 101):
f=f * x
print (f" {x:>3d}! = {f:>210,d}")
print
If you had the book, you would know what to do with that!
Also - It may not show up but the following lines need to be indented two spaces in the above example
f=f * x
print (f" {x:>3d}! = {f:>210,d}")
print
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Reviewed in the United States on May 26, 2023
★★★★★ 5
Great intro to (Monty) Python...
Format: Hardcover
Quick start books are really really good. Get right to the topic but in a way that does not leave your head swimming. Great intro text to the language that will prepare the reader for deeper tomes with the added bonus of a pretty well structured intro project. Recommend this publisher and will be looking for more of their titles.
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Reviewed in the United States on June 20, 2025
★★★★★ 5
Great for reluctant readers
Format: Paperback
This book is great for reluctant readers. I got this for my niece and her mother asked if I knew of any other graphic novels like this one because of how much my niece loved reading it. I ended up reading it and the story is very enjoyable and inspiring. The art is exceptional. I was very happy to find that there are more in the series. I bought both the first and second ones for my step daughter and other nieces this Christmas. Highly recommend!
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Reviewed in the United States on January 10, 2026
★★★★★ 5
Foster Care! Magic Paint! Superheroes! OH MY!
Format: Kindle
This was a great read. I loved everything about it. The artwork is vivid. The main character’s personality is spot-on. The humor was great.
Ashley is a girl in a world where she is herself and nobody else. At least, that’s what she thinks. Really, she’s a girl stuck in foster care because her dad’s in jail. She has a carefree attitude on the outside, but on the inside she’s really tender-hearted. Then one day a new family shows up, attempting foster care with Ashley. She’s living pretty nicely there and she’s made a friend named Luke. Then one day her foster mom comes home acting kind of strange. Later, Ashley decides to snoop into what’s in that mysterious suitcase her foster mom brought in and hid in a closet. She and Luke find paint. Lots of tubes of paint. Ashley puts them on her skin, because she “likes the texture.” This is where I think it’s waaaaay too obvious that what she’s doing has to be specifically made like that for the storyline. It’s okay though, they do an okay job of hiding it. Anyway. These paints are magic paints that give the person who wears them superpowers! So of course Ashley has to go and use them and be a superhero she calls ‘Primer’. But her foster mom’s job wants those paints she brought home back. So they send their roughest, toughest soldier to retrieve them. Ashley, of course, has a fight with her foster mom about it, and Ashley decides to run away, taking the paints with her.
Then obviously the soldier dude shows up, with a bunch of robots. There it just turns into your normal superhero fight scene, but then Ashley loses and the paints are taken except the teleportation one. The soldier, by the way, is named Strack. So then Ashley’s like, “Oh no, I’ll neeever be a hero” even though obviously she will, this is a superhero story. Suddenly her phone is ringing. It’s her foster dad and mom. She picks up their video call and it’s STRACK! He’s adult-napped her foster parents, of course. She debates going to fight Strack, or to just leave it. She goes with leave it until she looks up and sees a painting she made and this suddenly gives her confidence, for reasons unknown.
So then there’s another big fight scene with Strack, but Ashley is overconfident like she knows she can’t die, it’s a book and that would be devastating for little ones reading it. Anyway, she wins and frees her parents and they all live happily ever after.
So, this story ends in a cliffhanger that’s not a very good one. It’s just Ashley’s REAL dad seeing her on TV from when she went out and was a superhero the first time, and he’s like, “You’re not Primer, every father knows his daughter’s eyes, ASHLEY. See you soon.” So if I was hanging from a cliff here, I would be attached to it with a safety cable and I would be laying on the top of the cliff, with only my foot hanging off. It’s not much of a cliffhanger.
This was a great book about a female superhero. Oh, and another thing I forgot to mention, there is a page you should skip if you are reading to a child under seven. Page…. Let’s see here… oh yes. Page seventy-seven. It involves a gun and likely shooting afterwards, but it isn’t shown. I am a very sensitive person, and even I, an almost-teen was kind of rustled by it. Anyways, great story, lovely artwork, good book.
I’m rounding up from 4.5 stars.
-written by a tween
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Reviewed in the United States on February 26, 2022
★★★★★ 5
The best graphic novel!!
Format: Paperback
A great book... My daughter read this at the local library and had to have it ... She reads this constantly!!
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Reviewed in the United States on February 2, 2026
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