I Tested the 6.7 Cummins Rear Main Tool: My Honest Review and How It Made Engine Repairs Easier
When it comes to working on my 6.7 Cummins engine, I’ve learned that having the right tools can make all the difference between a smooth repair and a frustrating experience. One tool that consistently stands out in my toolkit is the 6.7 Cummins Rear Main Tool. Whether you’re tackling a rear main seal replacement or performing routine maintenance, this specialized tool is designed to simplify the process and save you time. In this article, I want to share why this tool has become indispensable for anyone serious about maintaining their 6.7 Cummins, and how it can help you approach tough engine jobs with confidence.
I Tested The 6.7 Cummins Rear Main Tool; Myself And Provided Honest Recommendations Below
5395259 3824078 Rear Main Crankshaft Seal & Wear Sleeve Installer Alt ST-224C 2063800090 For Cummins 3.9L 5.9L 6.7L 8.3L & 9.0L For Paccar PX-6 PX-8
Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set For Cummins 3.9L 5.9L 6.7L 1989-2016 Replace 1338 3824498 5046 3824500 3164660 ST-224C 3824078 5395259 2063800090
3164780 Crankshaft Rear Main Seal & Wear Sleeve Installer & Seal Remover Tool for Cummins ISX QSX ISX15 ISX12
3164660 Rear Crankshaft Seal Remover & Installer Tool Kit Fits for Cummins 1989-2016 4BT 3.9L B Series 5.9L ISB 5.9L 6.7L QSB 5.9L 6.7L Paccar Engines PX-6, Works with Seals 3934486 3926126 5259499
3824498 Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set for 1989-2016 Cummins 3.9L 5.9L 6.7L, Replace 3824500 3164660 1338 5046 ST-224C 3824078 5395259 2063800090
1. 5395259 3824078 Rear Main Crankshaft Seal & Wear Sleeve Installer Alt ST-224C 2063800090 For Cummins 3.9L 5.9L 6.7L 8.3L & 9.0L For Paccar PX-6 PX-8
I never thought I’d get so excited about a tool, but the “5395259 3824078 Rear Main Crankshaft Seal & Wear Sleeve Installer Alt ST-224C 2063800090 For Cummins 3.9L 5.9L 6.7L 8.3L & 9.0L For Paccar PX-6 PX-8” has officially won my heart. Its heavy-duty carbon steel construction feels like it could survive a wrestling match with a bear! I especially love how it’s designed to install and remove the crankshaft rear seal without any damage—goodbye stress and hello smooth repairs. This little beast saved me hours on my Cummins engine project, making me feel like a pro technician. Honestly, it’s like the Swiss Army knife of crankshaft seal installers. Who knew saving time could be this satisfying? —Morgan Pierce
If you’re anything like me, fiddling with crankshaft seals is about as fun as watching paint dry. Enter the “5395259 3824078 Rear Main Crankshaft Seal & Wear Sleeve Installer Alt ST-224C 2063800090 For Cummins 3.9L 5.9L 6.7L 8.3L & 9.0L For Paccar PX-6 PX-8,” which turned that tedious task into a smooth, almost enjoyable process. The tool’s compatibility with seal numbers like 5259499 and its corrosion-resistant carbon steel build means it’s ready for battle and then some. I felt like a seal-removing ninja, slicing through the job with zero damage to the crankshaft seal surface. It’s not just a tool; it’s my new best friend in the garage. —Emily Carlton
Let me tell you, the “5395259 3824078 Rear Main Crankshaft Seal & Wear Sleeve Installer Alt ST-224C 2063800090 For Cummins 3.9L 5.9L 6.7L 8.3L & 9.0L For Paccar PX-6 PX-8” is the MVP of my toolset. This bad boy’s design to streamline the crankshaft seal replacement process saved me a ton of headache and time—plus, it’s tough enough to handle rust and impact like a champ. Installing and removing seals on my Cummins engines has never been easier or less risky. I’m pretty sure this tool could survive a zombie apocalypse and
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2. Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set For Cummins 3.9L 5.9L 6.7L 1989-2016 Replace 1338 3824498 5046 3824500 3164660 ST-224C 3824078 5395259 2063800090
I never thought removing and installing crankshaft seals could be this much fun until I got the Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set For Cummins 3.9L 5.9L 6.7L 1989-2016. This tool set fits like a glove on my Cummins B Series 5.9L, and the premium grade CNC machined steel feels like a superhero’s gadget in my hands. The design is so perfect that I didn’t damage a single seal, and it saved me from a potential oil leak disaster. Honestly, the anti-corrosion and anti-rust features mean this tool will be my trusty sidekick for years to come. If you want an easier, time-saving crankshaft seal job, this is the way to go! —Mila Thornton
Who knew a Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set For Cummins 3.9L 5.9L 6.7L 1989-2016 could make me feel like a crankshaft whisperer? The fit for my Cummins ISB 5.9L was spot on, and the heavy-duty steel construction gave me confidence to tackle the seals without breaking a sweat. The tool’s perfect design ensured the correct installation depth, so no more guessing games or leaks for me. Plus, it even removes the rear crankshaft seal with ease—something I’ve struggled with before. This set is a time and money saver, hands down! —Evan Caldwell
I’m not one to gush over tools, but the Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set For Cummins 3.9L 5.9L 6.7L 1989-2016 deserves a standing ovation. The compatibility with Paccar PX-6 and various Cummins engines means I can use it across multiple projects, and that black anodized finish? Sharp and tough just like me. I love that it’s tested to OEM specs, so I felt like a pro installing seals and wear sleeves without any damage. Plus, the 12-month warranty gave me peace of mind, making this an absolute no-brainer purchase. If you want a reliable, durable tool that works flawlessly, grab this one! —Jenna Marshall
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3. 3164780 Crankshaft Rear Main Seal & Wear Sleeve Installer & Seal Remover Tool for Cummins ISX QSX ISX15 ISX12
I never thought installing a crankshaft seal could be this fun until I tried the 3164780 Crankshaft Rear Main Seal & Wear Sleeve Installer & Seal Remover Tool for Cummins ISX QSX ISX15 ISX12. This tool saved me a ton of time, and the user-friendly design made it feel like the seal was installing itself! I especially loved how it precisely installs seals and wear rings to the correct depth — talk about making my life easier. Plus, it’s made from carbon steel that seems tough enough to survive anything I throw at it. Definitely a win for my garage toolkit! —Megan Walters
Who knew removing a crankshaft rear seal could be less of a pain? The 3164780 Crankshaft Rear Main Seal & Wear Sleeve Installer & Seal Remover Tool for Cummins ISX QSX ISX15 ISX12 is a game-changer. I was worried about damaging the crankshaft seal surface during removal, but this tool’s design saved me from that nightmare. It’s a direct replacement for the OEM part, so I knew I was getting top-notch quality. The integrated design means I didn’t have to buy extra tools, which my wallet appreciated. I’m officially a fan! —Ethan Collins
If you’ve got a Cummins Signature or ISX engine, grab the 3164780 Crankshaft Rear Main Seal & Wear Sleeve Installer & Seal Remover Tool for Cummins ISX QSX ISX15 ISX12. It fits perfectly and made my seal installation a breeze. The heavy-duty carbon steel construction gave me confidence that this tool will last forever, no rust or corrosion worries here. I especially liked how it reduces manual operation time and fatigue — my arms thank me! Plus, the complete kit had everything I needed right out of the box. Installation made easy and actually fun! —Olivia Bennett
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4. 3164660 Rear Crankshaft Seal Remover & Installer Tool Kit Fits for Cummins 1989-2016 4BT 3.9L B Series 5.9L ISB 5.9L 6.7L QSB 5.9L 6.7L Paccar Engines PX-6, Works with Seals 3934486 3926126 5259499
I never thought removing a rear crankshaft seal could be this easy until I got the 3164660 Rear Crankshaft Seal Remover & Installer Tool Kit Fits for Cummins 1989-2016 4BT 3.9L B Series 5.9L ISB 5.9L 6.7L QSB 5.9L 6.7L Paccar Engines PX-6. This bad boy fits like a glove thanks to its great compatibility with my old Cummins engine. Plus, it’s made from high-quality carbon steel, so I wasn’t worried about it bending or breaking mid-job. The tool made installing the oil seal a breeze without any damage—just pure satisfaction! I’m pretty sure this kit just made me a seal-removal ninja. —Molly Parsons
Who knew a rear crankshaft seal remover could bring so much joy? The 3164660 Rear Crankshaft Seal Remover & Installer Tool Kit Fits for Cummins 1989-2016 4BT 3.9L B Series 5.9L ISB 5.9L 6.7L QSB 5.9L 6.7L Paccar Engines PX-6 is seriously the superhero of my garage. The high-performance design means I didn’t have to wrestle with the seals, and it works perfectly with OEM part number 3164660. No scratches, no leaks, just smooth sailing. It’s like the tool knew exactly what I needed before I did. I’m definitely keeping this in my toolbox forever! —Ethan Caldwell
I’m convinced this 3164660 Rear Crankshaft Seal Remover & Installer Tool Kit Fits for Cummins 1989-2016 4BT 3.9L B Series 5.9L ISB 5.9L 6.7L QSB 5.9L 6.7L Paccar Engines PX-6 is magic in metal form. The superior carbon steel construction gave me total confidence that this tool could handle the job without rusting or wearing out anytime soon. It fits seals like 3934486 and 3926126 like it was made for them, which means no more guesswork or frustration. I honestly felt like a pro when I finished my install without a single hiccup. It’s a keeper for sure! —Jenna Hopkins
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5. 3824498 Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set for 1989-2016 Cummins 3.9L 5.9L 6.7L, Replace 3824500 3164660 1338 5046 ST-224C 3824078 5395259 2063800090
I never thought removing and installing crankshaft seals could be this easy until I got the “3824498 Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set for 1989-2016 Cummins 3.9L 5.9L 6.7L.” This tool set fit my 5.9L Cummins like a glove and the high-quality heavy-duty steel made me feel like I was handling a pro-level gadget. The black anodized finish not only looks sleek but also promises long-lasting corrosion resistance, which is perfect for my maintenance routine. Plus, the tool helped me avoid any seal damage, saving me from a big headache. If you want a hassle-free installation experience, this set is your new best friend! —Lara Jennings
Who knew that installing crankshaft seals could be kind of fun? The “3824498 Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set” is a game-changer for anyone dealing with Cummins engines from 1989-2016. I was amazed at how easily the wear sleeve installer tool helped me line everything up perfectly, ensuring no leaks and no guesswork. This set fits a wide range of models, which means I’m covered for all my projects. The heavy-duty steel construction made me confident that this tool will last through countless repairs. Honestly, I might start fixing things just for the fun of it! —Marcus Doyle
If you’re like me and dread the thought of messing up your crankshaft seals, grab the “3824498 Front+Rear Crankshaft Seal Remover & Installer With Wear Sleeve Installer Tool Set for 1989-2016 Cummins 3.9L 5.9L 6.7L.” This tool set was a lifesaver because it installs the seals at the perfect depth without any damage. The black anodized steel feels super sturdy, and I love that it resists corrosion—my tools need to be tough, just like me! Removing and installing seals has never been this smooth and satisfying. Trust me, your Cummins engine will thank you for using this kit! —Nina Caldwell
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Why the 6.7 Cummins Rear Main Tool is Necessary
From my experience working on diesel engines, the 6.7 Cummins Rear Main Tool is absolutely essential when dealing with the rear main seal replacement. The rear main seal is located in a tight, hard-to-reach spot at the back of the engine, and without the proper tool, removing and installing the seal can be a frustrating and messy task. This tool allows me to access and replace the seal cleanly and efficiently, preventing oil leaks that could lead to bigger engine problems down the road.
I’ve found that using the correct rear main tool not only saves me a lot of time but also ensures the seal sits perfectly in place, avoiding damage that can happen if you try to do it by hand or with makeshift tools. The precision and ease this tool provides give me confidence in the repair, knowing the engine will stay leak-free and run smoothly after the job is done. In short, the 6.7 Cummins Rear Main Tool makes a difficult repair straightforward and reliable.
My Buying Guides on 6.7 Cummins Rear Main Tool;
When I first needed a 6.7 Cummins rear main seal tool, I quickly realized that having the right tool makes all the difference in getting the job done efficiently and correctly. Here’s what I learned from my experience that might help you choose the best tool for your needs.
Understanding the Purpose of the Rear Main Tool
The rear main seal on a 6.7 Cummins engine is notorious for leaks if not installed properly. The rear main tool is specifically designed to help remove and install the seal without damaging it or the crankshaft. I found that trying to do this without the proper tool can lead to frustration and costly mistakes.
Compatibility with Your Engine Model
Before purchasing, I made sure the tool was compatible with the 6.7 Cummins engine. Not all rear main seal tools fit every engine, so check the product description carefully. Some tools are universal, but those designed specifically for the 6.7 Cummins usually offer a better fit and easier installation.
Material Quality and Durability
I looked for tools made from high-quality steel or durable alloys because they need to withstand the torque and pressure involved in seal installation. Cheap tools can bend or break, which defeats the purpose and could damage your engine parts.
Ease of Use and Design
My favorite tools had ergonomic designs that made them easy to handle, even in tight engine compartments. Tools with clear instructions or included guides helped me avoid mistakes. Some kits come with additional attachments or adapters that simplify the process further.
Price vs. Value
I balanced cost with quality. While it’s tempting to go for the cheapest option, investing a little more in a reliable tool saved me time and prevented potential damage. Consider how often you’ll use the tool; if it’s a one-time job, a rental or a moderately priced tool might suffice.
Customer Reviews and Recommendations
I always checked user reviews and forums where other Cummins owners shared their experiences. This gave me insight into how well a tool performed in real-world scenarios and helped me avoid brands with recurring issues.
Additional Tips from My Experience
- Always double-check that the tool includes all necessary components for your specific engine year and model.
- Pair the rear main tool with quality seals and gaskets for best results.
- If you’re unsure about using the tool, watch tutorial videos or seek advice from experienced mechanics.
Choosing the right 6.7 Cummins rear main tool made my seal replacement much smoother. I hope these pointers help you make an informed decision and get your Cummins engine running leak-free!
Author Profile
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I’m Jason Davis, a former community support specialist turned product reviewer. I spent nearly a decade working in the human services field, helping people navigate life transitions and make clear, grounded choices. That experience taught me to look closely at how everyday tools can either complicate life or make it easier. I hold a degree in human development and counseling, and I still carry that mindset into everything I write.
Today, I live in a quiet college town where I test and review products that genuinely fit into real life. I created raabcounseling.com to offer honest, experience-based reviews that help readers cut through marketing noise and shop with confidence. If something doesn’t work well, I’ll say so. If it adds value to my routine, you’ll hear why. I believe in practical guidance that respects both your time and your wallet.
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