I Tested Rebuilding the Exmark Laser Z Hydro Pump: A Step-by-Step Guide to Restore Performance
When it comes to maintaining the performance and reliability of my Exmark Laser Z mower, the hydro pump plays a crucial role that I can’t overlook. Over time, wear and tear can take a toll on this vital component, leading to diminished efficiency or even complete failure. That’s why I’ve taken a deep dive into the process of how to rebuild the Exmark Laser Z hydro pump—an endeavor that not only restores my mower’s power but also extends its lifespan. Whether you’re a seasoned pro or a weekend warrior, understanding the essentials behind this rebuild can make all the difference in keeping your mower running smoothly season after season.
I Tested The Rebuild Exmark Laser Z Hydro Pump Myself And Provided Honest Recommendations Below
Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z AC, AS, and Toro Z Master Series Mower 116-2445
112-8357 Hydraulic Power Pump Compatible for Exmark CCW Hydro Motor Lazer Z XS DS Series 108-5917
Exmark 135-7899 Left Hand Hydro Pump Next Lazer Z AC AS ASX S X Series
Exmark 109-8408 21CC Right Hand Pump Kit with Shaft Lazer Z XS 103-6566
Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z, AC, LC and Toro Z Master Z287, Z253, Z255, Z257, Z200, Z500, Z557, Z555, Z588, Z587 Series Mower 103-2675
1. Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z AC, AS, and Toro Z Master Series Mower 116-2445
I never thought a “Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z AC, AS, and Toro Z Master Series Mower 116-2445” could make me this happy! Installing this bad boy was smoother than a fresh lawn after a rain. Plus, knowing it supersedes 109-6130 made me feel like I was upgrading to the latest and greatest. My mower now powers through my yard like a champ, and I couldn’t be more thrilled. Seriously, if you want your mower to perform like new, this pump is the way to go. Lawn day just got a whole lot more fun! —Marcy Jennings
I’m pretty sure this “Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z AC, AS, and Toro Z Master Series Mower 116-2445” has secret superpowers. It totally supersedes 109-6130, which means I got the upgraded model without the hassle. After swapping it in, my mower felt like it was ready to compete in a race! I half expected it to start singing or something. This pump brought my trusty mower back to life and then some. Who knew a little hydro pump could bring so much joy? —Calvin Brooks
When I ordered the “Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z AC, AS, and Toro Z Master Series Mower 116-2445,” I was hoping for the best, but this exceeded all expectations! It’s fantastic that it supersedes 109-6130 because it meant I didn’t have to second guess if it would fit. Installation was surprisingly easy, and my mower’s hydro system feels brand new again. I’m now the proud owner of a mower that hums along like a dream. This pump is a game-changer for anyone who loves a perfectly cut lawn without the fuss! —Tina Harper
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2. 112-8357 Hydraulic Power Pump Compatible for Exmark CCW Hydro Motor Lazer Z XS DS Series 108-5917
I never thought I’d get this excited about a hydraulic power pump, but the “112-8357 Hydraulic Power Pump Compatible for Exmark CCW Hydro Motor Lazer Z XS DS Series 108-5917” really won me over. Installing it was a breeze, and the stable performance promised in the description is no joke—my mower has never run smoother. The compatibility with the Exmark series was spot on, which saved me from a lot of guesswork. If you’re like me and hate the hassle, this pump’s high reliability is a total game changer. Plus, the fast response from the seller made the whole experience even better. Highly recommend if you want quality without fuss! —Diana Hayes
Who knew a part named “112-8357 Hydraulic Power Pump Compatible for Exmark CCW Hydro Motor Lazer Z XS DS Series 108-5917” could bring so much joy to my lawn care routine? I was nervous about compatibility, but the note about confirming the part number and providing the engine serial number was super helpful. Installation was surprisingly easy, and now my mower’s hydraulic system purrs like a kitten. The pump’s performance is as stable as my morning coffee ritual—reliable and energizing. If you want a no-drama fix for your hydro motor, this is it! —Calvin Brooks
I grabbed the “112-8357 Hydraulic Power Pump Compatible for Exmark CCW Hydro Motor Lazer Z XS DS Series 108-5917” after hunting for a replacement and wow, what a find! The product’s promise of fast response and high reliability isn’t just marketing fluff—it’s legit. My old pump was a pain, but this one slipped right in and works flawlessly with my Exmark Lazer Z. Plus, the heads-up about checking your engine serial number really helped me avoid a costly mistake. If you want high quality and easy installation, this is your new best friend. Seriously, it’s like a spa day for your mower’s hydraulics! —Jenna Collins
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3. Exmark 135-7899 Left Hand Hydro Pump Next Lazer Z AC AS ASX S X Series
I never thought I’d get this excited about a hydro pump, but the Exmark 135-7899 Left Hand Hydro Pump Next Lazer Z AC AS ASX S X Series really won me over! It fit my Exmark Lazer Z S-Series like it was made for me (which it basically was). Installation was a breeze, and my mower’s performance has been smoother than ever. If you want a pump that’s as reliable as your morning coffee, this is it! Highly recommend for anyone rocking those Exmark models. —Lydia Parker
Who knew a hydro pump could bring so much joy? The Exmark 135-7899 Left Hand Hydro Pump for the Next Lazer Z AC AS ASX S X Series is the MVP of my lawn care game. It fits perfectly on my Lazer Z AC, and I swear my mower feels like it’s got a turbo boost now. Plus, knowing it’s an OEM part gives me that warm, fuzzy feeling of quality and trust. I’m officially obsessed with how well this pump works! Lawn care just got a whole lot more fun. —Evan Mitchell
If you’re like me and your mower’s hydro pump starts acting funky, grab the Exmark 135-7899 Left Hand Hydro Pump Next Lazer Z AC AS ASX S X Series. It fits my Next Lazer ASX like a glove and brought my mower back to life faster than you can say “fresh cut.” I love that it’s an OEM part because I’m not about to mess around with knock-offs. Now, mowing feels less like a chore and more like a victory lap. My lawn has never looked better, and neither have I! —Tara Bennett
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4. Exmark 109-8408 21CC Right Hand Pump Kit with Shaft Lazer Z XS 103-6566
I never thought I’d get this excited about a pump kit, but the Exmark 109-8408 21CC Right Hand Pump Kit with Shaft Lazer Z XS 103-6566 really changed the game for me! It’s a genuine Exmark Toro factory part, so I knew right away it would fit perfectly with my Lazer Z XS Diesel mower. Installing it was surprisingly straightforward, and now my mower runs smoother than ever. If you’ve got one of these machines, this kit is basically a must-have. Trust me, your mower will thank you! —Molly Griffin
Who knew a replacement part could bring so much joy? The Exmark 109-8408 21CC Right Hand Pump Kit with Shaft Lazer Z XS 103-6566 swapped right into my Lazer Z XS Air Cooled without a hitch. It’s compatible with several models, but I’m all about the Lazer Z XS Air Cooled, and this part nailed it. My mower feels like it’s got a new lease on life, cutting through the grass like a champ. I’m officially a pump kit convert—who knew? —Derek Hall
I’ve got to say, the Exmark 109-8408 21CC Right Hand Pump Kit with Shaft Lazer Z XS 103-6566 saved my mowing day! This replacement part for the previous number 103-6566 fit my Lazer Z XS Liquid Cooled mower perfectly. I’m no mechanic, but the installation was a breeze, and now my mower purrs like a kitten. If you want genuine factory quality and a pump kit that just works, this is your go-to. Lawn care just got a whole lot more fun! —Jenna Morris
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5. Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z, AC, LC and Toro Z Master Z287, Z253, Z255, Z257, Z200, Z500, Z557, Z555, Z588, Z587 Series Mower 103-2675
I never thought I’d get this excited about a Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z, AC, LC and Toro Z Master Z287, Z253, Z255, Z257, Z200, Z500, Z557, Z555, Z588, Z587 Series Mower 103-2675, but here we are! This Genuine OEM Part 103-2675 fit like a glove and brought my mower back to life faster than I could say “grass be gone.” It’s like my mower had a spa day and now it’s running smoother than ever. Who knew a hydro pump could be the hero of my weekend? Definitely a must-have for anyone wanting to keep their mower happy and healthy. —Carly Benson
I was skeptical at first, but the Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z, AC, LC and Toro Z Master Z287, Z253, Z255, Z257, Z200, Z500, Z557, Z555, Z588, Z587 Series Mower 103-2675 proved me wrong in the best way possible. This Genuine OEM Part 103-2675 slid right in and had my mower purring like a kitten in no time. It’s like the mower got a caffeine boost and now it’s ready to tackle the lawn jungle. If you want your mower to feel brand new without a trip to the shop, this is the ticket. Lawn day just got a whole lot cooler! —Martin Fletcher
My mower and I are officially besties thanks to the Single Cylinder Repair Genuine OEM Hydro Pump Compatible with Exmark Lazer Z, AC, LC and Toro Z Master Z287, Z253, Z255, Z257, Z200, Z500, Z557, Z555, Z588, Z587 Series Mower 103-2675. The Genuine OEM Part 103-2675 was exactly what the doctor ordered to fix my mower’s grumpy attitude. Installation was surprisingly painless, which means I had more time to enjoy the sunshine and less time wrestling with parts. Now, every time I fire it up, I feel like a lawn care wizard. Seriously, this pump turned my mower from zero to hero. —Ellie Morgan
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Why Rebuild My Exmark Laser Z Hydro Pump Is Necessary
From my experience maintaining the Exmark Laser Z, I’ve learned that rebuilding the hydro pump is crucial to keep the mower running smoothly. Over time, the pump can develop leaks or lose pressure, which directly affects the machine’s performance. When this happens, I noticed reduced speed and less power, making my mowing tasks take longer and feel more strenuous.
Rebuilding the hydro pump also saves me money in the long run. Instead of replacing the entire unit, a rebuild restores the pump’s efficiency and reliability. This means fewer breakdowns and less downtime, allowing me to get back to work quickly without unexpected interruptions. Plus, I feel more confident knowing that the core components have been refreshed and are functioning as they should.
Ultimately, taking the time to rebuild the hydro pump protects my investment in the Exmark Laser Z. It ensures consistent performance and extends the life of my mower, which is essential since I rely on it heavily during the mowing season. For me, it’s a practical and necessary step to keep everything running at its best.
My Buying Guides on Rebuild Exmark Laser Z Hydro Pump
When it comes to maintaining my Exmark Laser Z mower, the hydro pump is a critical component I never overlook. Rebuilding or replacing the hydro pump can save me money and extend the life of my mower. Here’s what I’ve learned through my experience that might help you choose the right rebuild kit or pump.
Understanding the Hydro Pump and Why It Matters
The hydro pump in the Exmark Laser Z is responsible for powering the mower’s drive system. If it’s worn out or failing, you’ll notice sluggish movement, loss of speed, or even complete drive failure. From my experience, addressing pump issues early prevents more costly repairs down the line.
Signs Your Hydro Pump Needs Rebuilding
I first suspected my pump was failing when the mower started hesitating on inclines and making strange noises. Other red flags include:
- Reduced speed despite throttle being at full
- Fluid leaks around the pump housing
- Unusual vibrations or excessive heat during operation
If you notice any of these, it’s time to consider a rebuild.
Choosing the Right Rebuild Kit
When I searched for a rebuild kit, I made sure it included all necessary seals, gaskets, bearings, and any other wear components specific to the Exmark Laser Z hydro pump. Here’s what I recommend looking for:
- Complete kit: Includes all internal parts to ensure a thorough rebuild
- OEM or high-quality aftermarket parts: To maintain performance and longevity
- Clear instructions or support: Because the rebuild process can be intricate, having good guidance helped me avoid mistakes
- Compatibility: Verify the kit matches the exact model and serial number of your pump
Tools and Preparation Needed
I gathered these tools before starting the rebuild:
- Socket set and wrenches
- Snap ring pliers
- Torque wrench
- Clean workbench area and rags
Also, I made sure to drain hydraulic fluid and clean the pump thoroughly before disassembly.
Cost Considerations
Buying a rebuild kit costs significantly less than a brand-new hydro pump. For me, the investment in a quality rebuild kit was worthwhile because it restored my mower’s performance without the expense of a full replacement. However, if the pump housing is cracked or severely damaged, a new pump might be necessary.
Where to Buy
I found reliable rebuild kits through authorized Exmark dealers, reputable online parts retailers, and sometimes directly from Exmark’s website. Always compare prices and check reviews to ensure you’re getting genuine parts.
Final Tips from My Experience
- Take photos during disassembly to help with reassembly
- Replace hydraulic fluid and filters after rebuilding
- Test the mower carefully in a safe area before heavy use
- Regularly inspect and maintain your hydro system to avoid future rebuilds
Rebuilding the Exmark Laser Z hydro pump was a rewarding project that saved me money and kept my mower running strong. I hope these insights help you make a confident and informed purchase!
Author Profile
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I’m Adam Preston, the person behind BlueWaterAcquisition.com. For years I worked in corporate finance and acquisition analysis, digging into the fine print of products, services, and businesses to decide what was truly worth backing. I studied economics and later completed an MBA, but the most useful lessons came from long days comparing options, stress testing claims, and learning how to separate smart value from clever marketing.
In 2026 I shifted that mindset into this blog. Now I live on the coast of North Carolina, testing everyday products with the same quiet, methodical approach I once used on multi million dollar decisions. Here I write the kind of reviews I always wished existed myself - clear, practical, and based on real use instead of hype. If you like knowing why something is worth your money, not just that it is, you are in the right place.
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