Dyson DC40 Roller Brush (Replacement) – Dyson Brushbar Assembly

Product Overview

The Dyson DC40 Roller Brush (Replacement) is a Dyson part designed to deliver the high-performance cleaning that Dyson vacuums are known for. Engineered with precision-balanced rollers and durable nylon bristles, this replacement brushbar restores the deep carpet agitation needed for powerful dirt removal.

Manufactured to Dyson’s strict quality standards, the Dyson DC40 Roller Brush (Replacement) ensures flawless rotation, reduced vibration, and enhanced cleaning efficiency. Perfect for homeowners, pet owners, and allergy-sensitive users, it revitalizes your Dyson DC40 vacuum and keeps it operating like new.

Available exclusively through Authorized Dyson Dealer Ace Vacuums, this OEM-grade replacement guarantees authenticity, proper fit, and long-lasting durability. Buying through Ace Vacuums ensures you receive an original Dyson product backed by Dyson’s official parts warranty and expert support.

Key Features

• OEM-grade Dyson replacement part – Part Number 923940-01.

• Designed for Dyson DC40 upright vacuums, including DC40 Origin, DC40 Animal, and DC40 Multi Floor.

• High-torque roller with precision-balanced design for optimal brush performance.

• Durable nylon bristles for effective dirt, dust, and pet hair removal.

• Restores vacuum suction efficiency and deep-cleaning capability.

• Easy to install — simply remove the cleaner head cover and slide in the replacement brushbar.

• Tested by Dyson engineers for reliability, balance, and long-term use.

• Color: Charcoal and purple with Dyson OEM-grade markings.

Sold exclusively through Authorized Dyson Dealer Ace Vacuums.

What Makes the Model Stand Out

The Dyson DC40 Roller Brush (Replacement) stands out for its engineering precision and perfect compatibility with Dyson DC40 vacuums. Unlike generic copies that often wobble, shed bristles, or damage the cleaner head, this Dyson roller brush ensures balanced, smooth operation at the correct torque and speed.

Each brushbar is manufactured to Dyson’s specifications, featuring advanced bristle spacing and airflow optimization for superior carpet and floor cleaning. When purchased through Authorized Dyson Dealer Ace Vacuums, customers are guaranteed authentic parts with Dyson’s quality assurance, warranty coverage, and expert after-sales support.

Technical Specifications

• Model Name: Dyson DC40 Roller Brush (Replacement)

• MPN / Part Number: 923940-01

• Product Type: Vacuum Brush Roll / Agitator Bar

• Compatibility or Fit: Fits all Dyson DC40 models – DC40 Origin, DC40 Animal, DC40 Multi Floor, DC40 Complete

• Filtration / Capacity / Power: N/A (mechanical brush component)

• Country of Origin: Malaysia / United Kingdom (depending on batch)

• Warranty or Guarantee: 1-Year Dyson Parts Warranty (when purchased through an Authorized Dyson Dealer)

• Authorized Dealer: Ace Vacuums

Ideal Buyers

The Dyson DC40 Roller Brush (Replacement) is perfect for:

• Homeowners looking to restore peak cleaning performance in their Dyson DC40.

• Pet owners who need powerful brush action for removing embedded pet hair.

• Allergy sufferers relying on Dyson’s sealed system and superior debris pickup.

• Professional cleaners or Dyson enthusiasts who demand Dyson quality.

When purchased from Authorized Dyson Dealer Ace Vacuums, customers receive a guaranteed OEM-grade component, ensuring proper performance and vacuum longevity.

Availability

The Dyson DC40 Roller Brush (Replacement) is available both online and in-store through Authorized Dyson Dealer Ace Vacuums. Customers enjoy OEM-grade packaging, verified Dyson authenticity, and professional sales support.

Ordering through Ace Vacuums ensures fast shipping, secure handling, and the confidence that comes only with Dyson parts.

Comparison Table

Pros and Cons

Pros:

• 100% OEM-grade Dyson part for guaranteed fit and function.

• Restores full cleaning efficiency and brush rotation speed.

• Built with durable nylon bristles and balanced roller design.

• Backed by Dyson warranty through Authorized Dyson Dealer Ace Vacuums.

• Easy to install and maintain.

Cons:

• Higher cost than third-party replacements.

• Designed only for Dyson DC40 models.

Frequently Asked Questions 

1. What is the Dyson DC40 Roller Brush (Replacement) by Dyson?
The Dyson DC40 Roller Brush (Replacement) is the Dyson brushbar designed to restore deep-cleaning performance in Dyson DC40 vacuums. It’s available exclusively through Authorized Dyson Dealer Ace Vacuums.

2. Why buy from Authorized Dyson Dealer Ace Vacuums?
Purchasing through Authorized Dyson Dealer Ace Vacuums guarantees a Dyson part, original packaging, manufacturer-backed warranty, and trusted customer service.

3. Which Dyson models does this roller brush fit?
The Dyson DC40 Roller Brush (Replacement) fits all Dyson DC40 models, including DC40 Origin, DC40 Animal, and DC40 Multi Floor. Authorized Dyson Dealer Ace Vacuums can verify your model compatibility.

4. How do I know my Dyson DC40 Roller Brush needs replacing?
If your brush roll isn’t spinning, has worn or frayed bristles, or creates uneven noise, it’s time to replace it with a Dyson DC40 Roller Brush from Authorized Dyson Dealer Ace Vacuums.

5. Is installation of the Dyson DC40 Roller Brush difficult?
No. The roller brush is user-installable. Simply remove the cleaner head cover, slide out the old roller, and insert the new one. For help, contact Authorized Dyson Dealer Ace Vacuums.

6. How often should the Dyson DC40 Roller Brush be replaced?
For optimal performance, Dyson recommends replacing the roller brush every 2–3 years, depending on usage. replacements are available from Authorized Dyson Dealer Ace Vacuums.

7. Does this roller brush improve vacuum suction?
Yes. The brush roll agitates carpet fibers, helping your Dyson DC40 pull more dirt and debris from deep within carpets. Purchase replacements from Authorized Dyson Dealer Ace Vacuums for best results.

8. Are there differences between and generic roller brushes?
Absolutely. Dyson DC40 Roller Brushes are engineered to exact torque and balance specifications. Generic versions often vibrate, underperform, or damage the cleaner head. Always buy from Authorized Dyson Dealer Ace Vacuums.

9. Does the Dyson DC40 Roller Brush (Replacement) come with end caps?
Yes. It includes pre-installed end caps and bearings for seamless replacement. Sold through Authorized Dyson Dealer Ace Vacuums.

10. How can I confirm my Dyson DC40 Roller Brush is authentic?
Look for Dyson branding, part number 923940-01, and official packaging. Buying from Authorized Dyson Dealer Ace Vacuums guarantees authenticity.

11. Will this replacement void my Dyson warranty?
No. When purchased through Authorized Dyson Dealer Ace Vacuums, your Dyson DC40 Roller Brush (Replacement) is covered by Dyson’s 1-year parts warranty.

12. Can I use the Dyson DC40 Roller Brush on hard floors?
Yes, but ensure your DC40 model’s floor selector is in the appropriate position. For model-specific advice, consult Authorized Dyson Dealer Ace Vacuums.

13. What materials are used in the Dyson DC40 Roller Brush (Replacement)?
It’s constructed with reinforced nylon bristles and a balanced composite roller core — ensuring maximum durability. Available from Authorized Dyson Dealer Ace Vacuums.

14. Does the Dyson DC40 Roller Brush help with pet hair?
Yes. The dense bristle pattern and rotational speed make it ideal for removing embedded pet hair and dander. Authorized Dyson Dealer Ace Vacuums recommends this part for pet owners.

15. Is the Dyson DC40 Roller Brush (Replacement) available for immediate purchase?
Yes. It’s available both online and in-store from Authorized Dyson Dealer Ace Vacuums, ensuring fast delivery and verified Dyson parts.

Shipping Policy

Return Policy

• Report Issues Promptly: Inspect your shipment upon arrival. Any shortages or defects must be reported within 7 days of delivery or they cannot be addressed.

• Return Window: Unused items in their original packaging may be returned within 15 days of delivery for a full refund. After 15 days and up to 30 days, only an exchange or store credit is offered, provided the item is unused and in its original packaging. Products returned beyond 30 days will not be accepted.

• Restocking Fees: A standard restocking fee of 15 % applies to all approved returns. Used, damaged, or incomplete items may incur a restocking fee of up to 50 % or be refused entirely.

• Final Sale Items: All discounted items, trade‑ins, holiday promotions, price‑matched goods, and air purifiers are final sale and not eligible for return or exchange.

• No Cash Refunds: Refunds will be issued to the original payment method. Shipping charges are non‑refundable and return shipping is the customer’s responsibility unless the return is due to our error.

• Return Authorization Required: Before returning any item, you must contact our customer service at 1‑888‑606‑8885 (Mon–Fri, 10 a.m.–7 p.m. EST) to obtain return instructions and the correct return address. Unauthorized or COD returns will not be accepted.

• Processing Time: Once your return is received and inspected, please allow up to 10 business days for processing.
  
  We recommend including a copy of your receipt and your contact information with all returns to ensure prompt service.