As an Amazon Associate I earn from qualifying purchases.Updated: March 19, 2026
The HEPA Filter in your Shark Navigator NV651 traps dust, allergens, and other microscopic particles, ensuring clean air output. Over time, the filter becomes clogged, reducing suction power and overall cleaning efficiency. Regularly replacing the HEPA filter (every 3 months) maintains optimal performance and extends the life of your vacuum.
Check current pricing, reviews, and availability on Amazon.
Function: Captures tiny dust particles, allergens, and other pollutants to purify the air during vacuuming.
Signs it needs replacing: Reduced suction power, increased noise during operation, visible dirt buildup on the filter.
OEM vs aftermarket: OEM (original equipment manufacturer) filters guarantee perfect fit and performance but are often pricier. Aftermarket options can be more affordable, but always verify compatibility with your specific model NV651 before purchasing.
Installation: Typically involves removing the dustbin, accessing the HEPA filter compartment, and replacing the old filter with a new one. Refer to your user manual for precise instructions.
Replacement schedule: every 3 months
Compatibility warning: always verify part number matches your exact model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance: replacing on the every 3 months schedule
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This guide is for Shark Navigator NV651 owners experiencing reduced suction power, increased noise, or noticing visible dirt buildup on the HEPA filter. Replacing the filter can restore your vacuum's performance and extend its lifespan.
Not ideal for: If your Shark Navigator NV651 has significant mechanical issues beyond a worn-out HEPA filter, a full device replacement may be more economical in the long run.
Good to Know Before Buying
💡
Always confirm your exact model number (NV651) before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Shark Navigator NV651 HEPA Filter?
The part number is AF100. Always verify this matches your exact model (NV651) before ordering, as similar models may use different parts.
How often should I replace the HEPA Filter on my Shark Navigator NV651?
every 3 months
Will aftermarket HEPA Filter replacements work in my Shark Navigator NV651?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model NV651 and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.