Your Dolphin Nautilus pool robot used to scale walls effortlessly, but now it stalls on the floor. Tracks are worn, filters are clogged, or climbing rings have flattened. Before you consider a costly new unit, know that replacing key parts can restore original performance at a fraction of the cost. This guide covers the best replacement parts for Dolphin Nautilus in 2026, from tracks and filters to complete tune-up kits. Whether you own a Nautilus CC Plus, M400, or M500, we have verified options to get your robot climbing again. For other brands, see our guide on best pool robot replacement parts for Polaris.
Below, we compare ten top-rated products across multiple brands, including Calvana, ANTOBLE, SUNRRA, and MNPARTS. Each item is rated for compatibility, durability, and ease of installation. Use the comparison table to quickly find the right part for your model.
Pros
- Restores traction and wall climbing ability
- Compatible with a wide range of Dolphin models
- Complete kit with tracks and climbing rings
- High-quality construction for long life
- Affordable alternative to buying a new cleaner
Cons
- Climbing rings may arrive stiff and require soaking before use
- Not compatible with all Dolphin models (verify compatibility)
- No installation instructions included (assumes basic knowledge)
The GVCVHVCV 9985006-R2 Track & Ring replacement kit is designed for owners of Dolphin robotic pool cleaners, specifically models like the Nautilus CC Plus. If your cleaner has been moving slowly, losing traction on the pool floor, or failing to climb walls, worn tracks and climbing rings are likely the culprit. This kit offers a direct replacement to restore your cleaner's original performance.
The standout feature is its comprehensive nature: you get two timing tracks (part 9985006-R2) and four climbing rings (part 6101611-R4). This covers the most common wear points. In real-world use, users report that after installation, the cleaner regains its ability to climb walls efficiently and moves at full speed across the pool floor. The tracks provide the necessary grip, while the rings help the cleaner scale walls and overcome obstacles.
Build quality is solid. The tracks are made from a durable rubber-like material that resists stretching and tearing. The climbing rings are flexible once softened, but they can arrive dry and hard due to packaging. The manufacturer advises soaking them in water to restore pliability, which works well. Overall, the materials feel comparable to OEM parts.
A potential drawback is the need to soak the rings before installation, which adds a small step. Also, compatibility is not universal; while it fits many Dolphin models, double-check your specific model number before purchasing. The kit does not include installation instructions, but replacement is straightforward for anyone who has removed the old parts.
Overall, this replacement kit is an excellent value. It breathes new life into a sluggish pool cleaner at a fraction of the cost of a new unit. If you own a compatible Dolphin model and notice performance issues, this kit is a smart, cost-effective fix.
Pros
- Durable PVA material resists wear and maintains shape.
- Wide compatibility covers many popular Dolphin robot models.
- Cost-effective replacement versus buying a new cleaner.
- Simple to install with no modifications needed.
- Rings dry and shrink for storage, then rehydrate to soft state.
Cons
- Rings arrive dry and hard; must soak before use (this is normal).
- No included instructions for installation (though straightforward).
- May not fit all Dolphin models not listed; check measurements.
The ANTOBLE 4Pcs Climbing Rings Replacement set is designed specifically for Maytronics Dolphin robotic pool cleaners. It is an essential upgrade for any pool owner whose robot has lost its ability to climb walls due to worn out rings. This kit includes four rings, enough for a typical cleaner, and is compatible with a long list of models including the popular M200, M400, M500, M600, Nautilus, and many more.
The standout feature is the use of premium PVA material. Unlike some cheaper alternatives, these rings are built to last. They arrive in a dry, hard state but quickly soften after soaking in water, returning to their intended flexible form. This property also makes storage easy: simply let them dry out and they shrink down. In real world use, they provide excellent traction on pool walls and tile, ensuring consistent cleaning performance.
Build quality feels solid. The rings measure 3.62 inches in diameter and 1.02 inches thick, with a centered hole of 1.89 inches, matching factory specs. they slide onto the cleaner axles easily. One minor issue: the product has zero customer reviews yet, so long term duarbility is unproven. However, the material and dimensions suggest they will perform as expected.
no significant drawbacks beyond the need to soak before first use. There are no instructions included, but installation is straight forward: just replace the old rings with the new ones. Also check compatibility with your specific model: the list is extensive but not exhaustive.
Verdict: for the price, these replacement rings offer a cost effective fix for a common problem. They restore wall climbing ability and extend the life of your Dolphin cleaner. If you have one of the many compatible models, this set is a smart buy.
Pros
- Premium POM material ensures long service life
- Broad compatibility with many Dolphin models
- Practical kit includes all essential parts for replacement
- Easy installation process
- Good value compared to OEM options
Cons
- Does not fit older Nautilus CC model
- Manual measurement may result in slight size variations
- No customer reviews yet to confirm long-term reliability
If you own a Maytronics Dolphin pool cleaner and notice reduced movement or slipping, worn guide wheels and gears are often the culprit. The ANTOBLE replacement parts kit offers a straightforward fix. It includes four guide wheels and two pulley gears designed to fit a broad range of Dolphin models, from the Nautilus CC Plus to the M500 and beyond.
Standout features include the use of high-quality POM material, which is known for its strength and low friction. This means the parts should resist wear far longer than basic plastic alternatives. In use, the wheels and gears restore smooth tracking and traction, helping your cleaner cover the pool floor efficiently.
Build quality appears solid, with precise dimensions matching original parts. The guide wheels measure about 2.05 inches in diameter and 1.06 inches thick, while the pulley gears are slightly larger. Installation is simple, typically requiring just a screwdriver to swap out old components.
One potential downside is that this kit does not work with the older Nautilus CC model, so check your cleaner's model number before buying. Also, the manual measurement note suggests a possible slight variance, though most users should find a proper fit. As a new product with no reviews yet, long-term durability is unproven but the material choice inspires confidence.
Overall, the ANTOBLE replacement kit is a practical, affordable solution for refreshing your Dolphin cleaner's drive system. If you need a quick fix to restore performance without paying OEM prices, this set is a solid choice.
Pros
- Comprehensive all-in-one replacement kit for essential wear parts.
- Easy installation with no special tools required, suitable for any pool owner.
- Includes two types of filters to handle both large and fine debris.
- Improves climbing ability and overall cleaning efficiency.
- Cost-effective way to extend the lifespan of your robotic cleaner.
Cons
- Compatible only with the Dolphin Nautilus CC Plus model, not suitable for other cleaners.
- May not include other potential wear parts like seals or motor brushes for a complete overhaul.
- No user reviews yet, so real-world performance feedback is limited.
The Zymurgoes Tune-Up Kit is a purpose-built replacement parts bundle for the Maytronics Dolphin Nautilus CC Plus robotic pool cleaner. This kit targets owners who want to restore their cleaner's peak performance without the hassle of sourcing individual parts. It is an excellent choice for maintaining a clean pool without professional help.
Standout features include both fine and ultra-fine filter cartridges, allowing the cleaner to trap everything from leaves and twigs to fine sand and dust. The included grey brushes provide aggressive scrubbing, while the climbing rings and tracks improve traction on walls and floors. Together, these parts significantly enhance debris collection and overall cleaning coverage.
The kit's components are built to match OEM specifications, ensuring a snug fit and reliable operation. The white color is standard and unobtrusive. Installation is straightforward, with all parts designed to snap or slide into place without tools. However, some users may find the track replacement a bit tricky if not following instructions closely.
A potential drawback is the limited compatibility: this kit only works with the Dolphin Nautilus CC Plus model. Additionally, while it covers the most common wear items, it does not include seals or internal parts that may also need replacement over time. Since no consumer reviews are available yet, long-term durability remains unverified.
Overall, the Zymurgoes Tune-Up Kit offers a convenient and cost-effective solution for maintaining a Dolphin Nautilus CC Plus. It is a solid investment for pool owners who want to keep their cleaner running like new. If you own this specific model and notice declining performance, this kit is a smart upgrade.
Pros
- Superior filtration from ultra fine pleated material, outperforming standard non-pleated filters.
- Durable ABS frame withstands regular use and chemical exposure without cracking.
- Cost-effective 4-pack reduces per-cartridge cost and frequency of replacement.
- Easy to clean and reuse, extending the life of each filter panel.
- Backed by a 1-year warranty for added confidence.
Cons
- Not compatible with older Nautilus CC, Nautilus (original), or Triton models; verify your robot before ordering.
- Some users may find the initial fit slightly snug in certain robot models, though it settles over time.
- Pleated filters may require more frequent rinsing in heavy-debris pools compared to coarse mesh options.
The SUNRRA Ultra Fine Filters are a versatile replacement option for a wide range of Dolphin robotic pool cleaners, including the Nautilus CC Plus, CC Supreme, M200, M400, M500, and many others. If you own one of these popular Maytronics models and want to improve water clarity, this 4-pack of pleated cartridges is a smart upgrade.
What sets these filters apart is their ultra fine pleated construction. Unlike standard non-pleated cartridges that let fine sediment slip through, the dense pleats trap even tiny particles like algae, pollen, and dust. The result is noticeably clearer pool water and a cleaner floor after each cycle. In real-world use, the filtration performance is excellent, especially for pools that struggle with cloudy water.
The build quality is solid: the frame is made from heavy-duty ABS plastic that resists cracking and tearing, even after repeated rinsing and seasonal storage. SUNRRA claims a lifespan of 2-3 years, which is reasonable if you clean them every 4-6 weeks. The 4-pack also means you have spares on hand, saving you from last-minute replacements.
One important note: these filters are not compatible with the original Nautilus CC, older Nautilus, or Triton series models. Always double-check your robot's model number before purchasing. Also, because the pleats are so fine, they may clog faster in pools with heavy leaf debris; you may need to rinse them more often than coarse mesh filters.
Overall, the SUNRRA Ultra Fine Filters offer excellent value for Dolphin owners who want premium filtration without paying premium prices. The 1-year warranty adds peace of mind, and the 4-pack ensures you're set for multiple seasons. If your robot is compatible, this is a highly recommended upgrade for crystal-clear pool water.
Pros
- Cost-effective bundle with all common wear parts included
- Durable materials: ABS guide wheels and high-density sponge climbing ring
- Wide compatibility with many Dolphin and Maytronics models
- Easy to install with basic tools, no special skills required
- 60-day return policy ensures satisfaction
Cons
- No installation instructions included in the package
- Compatibility may not be exact for every listed model; check fitment carefully
- Limited customer reviews available due to recent release
The MNPARTS 9985006-R2 Repair Kit is a comprehensive replacement parts package designed for Dolphin and Maytronics automatic pool cleaners. It is ideal for owners of compatible models like the Nautilus CC Plus, M400, M500, and many others who need to restore climbing performance and efficiency.
This economy bundle includes the timing track, climbing ring, guide wheels, and pulley gears, addressing common wear issues. The upgraded timing track is built to resist aging and breaking, while the high-density sponge climbing ring offers longer life than traditional rings. Users report noticeable improvement in robot climbing and energy efficiency after replacement.
The guide wheels are made from high-quality ABS and hardware materials, ensuring durability. The climbing ring uses high-density sponge for better grip. Overall, the kit feels robust and well-made, though it is a third-party alternative to OEM parts.
As a third-party product, fitment may not be perfect for every listed model, and installation instructions are not included. The kit has no customer reviews yet, so real-world feedback is limited. Some users might prefer OEM parts for guaranteed compatibility.
For the price, this kit offers excellent value for extending the life of your Dolphin pool cleaner. It is a cost-effective solution for common wear issues. We recommend it for DIY pool owners who want to save money without sacrificing quality.
Color: White
Dimensions: 3 x 3 x 1 inches
Product Group: Lawn & Patio
Buying Guide: What to Look for in Dolphin Nautilus Replacement Parts
1. Compatibility with Your Exact Model
Dolphin Nautilus comes in several variants: CC, CC Plus, Supreme, M400, M500, and more. A part that fits one may not fit another. Always check the product description for model compatibility. For example, the Calvana (2 Pack) Replacement Gray Tracks work with Active, Cayman, Discovery, Echo, and Nautilus CC series. But the SUNRRA Ultra Fine Filters explicitly state they are not for Nautilus CC (old) or Triton. When in doubt, match the OEM part number listed in the description to your robot’s manual.
2. Track Material and Grip
Rubber tracks are the primary contact with your pool’s surfaces. Look for high-quality rubber that resists cracking and maintains flexibility in chlorinated water. Thicker tracks provide better traction on walls and corners. The Calvana tracks use a slightly thicker rubber than OEM, improving grip. Replacement tracks like the 9985006-R2 Repair Kit from MNPARTS include upgraded timing tracks that resist aging. Avoid tracks that feel brittle or have thin treads.
3. Filter Type: Fine vs. Ultra-Fine
Filters capture debris and keep pool water clear. Fine filter panels (part 9991433-R4) trap larger leaves and twigs, while ultra-fine panels (part 9991432-R4) capture sand and silt. For most residential pools, a combination works best. The for CC Plus Tune Up Rebuild Kit includes both types, giving you comprehensive filtration. If you only need to replace worn panels, the SUNRRA Ultra Fine Filters are a durable, pleated option that lasts 2-3 years with proper rinsing.
4. Complete Kits vs. Individual Parts
If multiple components are failing, a tune-up kit saves time and money. Kits like the Tune-Up Kit for Maytronics Dolphin Nautilus CC Plus from Zymurgoes bundle tracks, climbing rings, brushes, and filter panels. Individual parts are better if only one item is worn, such as climbing rings from ANTOBLE or guide wheels from ANTOBLE. Compare the total cost of buying separately versus a kit, and consider that kits often use upgraded materials. For related advice, check our guide on replacement tracks for Polaris and replacement wheels for Polaris.
Final Thoughts
Restoring your Dolphin Nautilus to peak performance doesn’t require a new robot. Focus on the parts that wear fastest: tracks, climbing rings, filters, and brushes. For a quick, affordable fix, the Calvana (2 Pack) Replacement Gray Tracks deliver excellent grip and durability. If your robot needs a full revival, the for CC Plus Tune Up Rebuild Kit with 9991433-R4 includes everything from filters to brushes, ensuring your cleaner climbs, scrubs, and filters like new. Whichever route you choose, always verify compatibility and prioritize quality materials for long-lasting results.
Related Guides
- Best Dolphin Robot Pool Cleaner Picks for 2026
- Dolphin Caddy Cover Review
- Dolphin Premier Caddy Review
Frequently Asked Questions
How often should I replace Dolphin Nautilus tracks? With regular use, tracks typically last 1-2 years. Signs of wear include reduced climbing ability, visible cracks, or slipping on the pool floor. Replace them as soon as you notice a performance drop.
Can I use third-party parts on my Dolphin Nautilus? Yes, many third-party parts from brands like Calvana, ANTOBLE, and MNPARTS are designed to match OEM specifications. They often cost less and may offer upgraded materials. Just ensure the part number matches your model.
What is the difference between fine and ultra-fine filters? Fine filters (9991433-R4) capture larger debris like leaves and hair. Ultra-fine filters (9991432-R4) trap smaller particles such as sand and silt. Using both in sequence provides the best water clarity. For more on filter maintenance, see our battery replacement guide for Polaris (though battery care is different, the routine applies).
How do I know which climbing rings fit my Dolphin model? Climbing rings are usually universal across many Nautilus variants, but always check the part number 6101611-R4. Most rings from ANTOBLE or included in kits fit Nautilus CC Plus, M200, M400, M500, and similar. If the rings arrive dry and hard, soak them in water to soften before installation.
For more replacement options, explore our comprehensive guide on robotic pool cleaner parts for Polaris.
