Your Dolphin Active 20 used to glide effortlessly, scrubbing every inch of your pool floor and walls. Lately, though, you’ve noticed it leaving streaks, slipping on the walls, or even stalling mid-cycle. The culprit is almost always worn-out brushes. Replacing them is the fastest way to bring back that showroom shine, but finding the right ones can be a maze of part numbers and compatibility lists. I’ve researched the top options to help you get your pool robot back to peak performance without the guesswork.
Why Brush Replacement Matters for Your Dolphin Active 20
The brushes on your Dolphin Active 20 are the workhorses of your pool cleaner. They scrub algae, dirt, and debris off surfaces while providing the traction needed to climb walls and navigate the waterline. Over time, bristles wear down, harden, or break off, reducing scrubbing power and causing the robot to slip or drift. Regularly replacing these brushes not only restores cleaning efficiency but also protects your pool’s surfaces from scratches caused by worn plastic parts. It’s a small maintenance step that extends the life of your investment.
Product Comparison: Top Replacement Brushes for Dolphin Active 20
To help you choose the right replacement, I’ve compared eight top-rated products. The list below includes genuine Dolphin parts, compatible aftermarket options, and comprehensive tune-up kits. Each product has been evaluated for compatibility, build quality, and ease of installation based on verified customer feedback and technical specifications.
Pros
- Compatible with a wide range of Dolphin models
- Restores climbing ability and scrubbing performance
- Affordable replacement compared to buying new robot
- Two brushes included for complete replacement
- Easy installation with proper fit check
Cons
- Compatibility may vary by robot revision, so verification is required
- Does not include other parts like tracks or filters
- No customer reviews yet to confirm long-term durability
The BGD 6101641-R2 Grey Climbing Brushes are a replacement set designed for Dolphin robotic pool cleaners, specifically models like the M200, DX3, and DX4. They come as a two-pack to replace both front and rear brushes, restoring the robot's ability to scrub pool floors and climb walls effectively.
These brushes are engineered to rotate with the robot's movement, dislodging dirt and debris while maintaining traction on vertical surfaces. Users can expect a noticeable improvement in cleaning performance once worn brushes are replaced, making this a cost-effective maintenance solution.
Build quality appears solid with grey composite bristles that resist wear and water damage. The set includes two identical brushes, but buyers must verify the shape, length, and mounting configuration of their existing brushes to ensure compatibility, as similar-looking robots may use different assemblies.
One potential drawback is the lack of customer reviews, so real-world longevity is unconfirmed. Additionally, compatibility varies by robot revision, so double-checking your model number is essential before purchase.
Overall, the BGD 6101641-R2 brush set offers a reliable and affordable way to keep your Dolphin pool cleaner performing at its best. If you need to restore scrubbing and climbing function, this two-pack is a smart choice.
Key Buying Criteria for Dolphin Active 20 Replacement Brushes
When shopping for replacement brushes, keep these four factors in mind to ensure you get the right fit and performance.
1. Compatibility with Your Exact Model
Not all Dolphin brushes fit every model. The Active 20 uses specific part numbers like 9983122-R1 for the front brush and 6101641-R2 for the grey climbing brushes. Always cross-reference your robot’s model number with the product’s compatibility list. Some aftermarket brushes are designed for multiple models (e.g., Active 20, 30, E10, E20), but double-check the connecting ports and dimensions to avoid mismatches.
2. Brush Material and Durability
Look for brushes made from high-quality, wear-resistant materials. Genuine Dolphin parts use a blend of nylon and polyester that provides firm scrubbing without scratching surfaces. Aftermarket options may use similar materials but ensure they have a dense bristle pattern for effective dirt removal. Cheaper brushes might wear out faster, costing you more in the long run.
3. Ease of Installation
Most brush replacements are DIY-friendly, requiring no special tools. However, some designs, like the integrated rear brush assembly, simplify the process by combining multiple parts into one unit. Check if the product includes clear instructions or online videos. If you’re not comfortable disassembling your robot, consider a tune-up kit that comes with all necessary parts and a step-by-step guide.
4. What’s Included in the Package
Some products are sold as a single brush, while others come in pairs or as part of a rebuild kit. If you need both front and rear brushes, buying a 2-pack or a kit with tracks and filters can be more convenient and cost-effective. Also, check if the package includes additional parts like climbing rings or drive gears, which might need replacing simultaneously.
Installation Tips for a Smooth Replacement
Replacing the brushes on your Dolphin Active 20 is straightforward. Start by turning off the power and removing the robot from the water. Lay it on a flat surface, then use a screwdriver to remove the screws securing the bottom plate. Slide out the old brushes and insert the new ones, ensuring they click into place. For the rear brush, you may need to detach the connecting port from the old brush, keeping only the rear wheel, as noted in some product instructions. Reassemble the plate, and your robot is ready for action.
If you encounter any resistance, double-check that you’re using the correct part number for your model. Some aftermarket brushes require a bit of force to snap in, but if it doesn’t fit, stop and verify compatibility—forcing it could damage the housing.
Frequently Asked Questions
How often should I replace the brushes on my Dolphin Active 20?
It depends on usage and pool conditions. On average, brushes last 1 to 2 seasons. If you notice reduced scrubbing, visible wear, or the robot slipping on walls, it’s time to replace them. Check the bristles for fraying or missing chunks.
Can I use aftermarket brushes on my Dolphin Active 20?
Yes, many aftermarket brushes are designed to fit perfectly and perform comparably to OEM parts. Just ensure they’re listed as compatible with the Active 20 and have good reviews. Aftermarket options often come at a lower cost, but verify material quality to avoid premature wear.
What’s the difference between the front and rear brushes?
The front brush (e.g., part 9983122-R1) is typically shorter and assists with scrubbing the floor and walls, while the rear brush (e.g., 6101641-R2) is longer and helps with climbing and traction. Both are essential for balanced cleaning and movement.
Is it necessary to replace brushes in pairs?
While not strictly necessary, replacing both front and rear brushes at the same time ensures even wear and optimal performance. If one is significantly more worn, it could affect the robot’s balance and cleaning efficiency.
Related Guides
- Best Pool Robot Replacement Brush for Algae in 2026
- Replacements for Sparkling Water in 2026
- 5 Top Replacement Tracks for Pool Robot in 2026
Final Thoughts
Investing in the right replacement brushes for your Dolphin Active 20 is a simple way to extend its lifespan and keep your pool sparkling. Whether you choose a genuine Dolphin part for guaranteed fit or a compatible aftermarket set for value, regular maintenance ensures your cleaner operates at full strength. Remember to check compatibility, consider a tune-up kit if other components are due, and don’t forget to replace brushes in pairs for even performance.
For more guidance on maintaining your pool robot, explore our other resources on Dolphin E20 replacement brushes or check out top Dolphin E10 brush picks for similar models. If you’re considering an upgrade, our reviews of AIPER cordless vacuums might interest you.
Happy cleaning! Your Dolphin Active 20 will thank you with a spotless pool all season long.
