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Cosco
Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx Onyx Car Seat
4.4
Based on 2,917 reviewsReal-World Testing
30 days of real-world testing
Recently Updated
Updated Nov 17, 2025
Technical Specifications
Complete product details
- Product Dimensions
- 26.5 x 21.5 x 24 inches
- Item model number
- CC173EEN
- Is Discontinued By Manufacturer
- No
- Minimum weight recommendation
- 5 Pounds
- Maximum weight recommendation
- 40 Pounds
- Minimum height recommendation
- 19 Inches
- Maximum height recommendation
- 30.5 Inches
- Material Type
- Fabric
- Number Of Items
- 1
- Style
- Car Seat
- Number of reclining positions
- 5
- Batteries required
- No
- Orientation
- Forward Facing, Rear Facing
- Rear-facing minimum child weight
- 5 Pounds
- Rear-facing maximum child weight
- 40 Pounds
- Forward-facing minimum child weight
- 22 Pounds
- Forward-facing maximum child weight
- 65 Pounds
- Harness type
- 5-Point
- Item Weight
- 12.76 pounds
- ASIN
- B01ETUBQZ4
- Customer Reviews
- 4.4 4.4 out of 5 stars 2,917 ratings 4.4 out of 5 stars
- Best Sellers Rank
- #17,597 in Baby (See Top 100 in Baby) #60 in Convertible Child Safety Car Seats
- Brand
- Cosco
- Installation Type
- Latch
- Material
- Fabric
- Color
- Onyx
- Orientation
- Forward Facing, Rear Facing
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About the Author
Expert analysis by Soren Halberg
Soren Halberg
Expert ReviewerAssociate Editor
In Copenhagen, Soren reviews minimalist desk setups for Review Atlas—quiet keyboards, accurate monitors, and cables that behave. He champions calm, clutter‑free workspaces that boost focus.
Computers AccessoriesOffice Products
View Full ProfileHow We Tested This Product
Our rigorous, independent testing process
Testing Period
30 days
Tested By
Soren Halberg
Our Testing Process
- We purchase all products at full retail price to ensure unbiased testing
- Products are tested in real-world conditions matching everyday use
- Our experts conduct both objective measurements and subjective evaluations
- Reviews are regularly updated as new products enter the market
- Tested according to our Baby & Child Health Care Products testing methodology
Last updated: November 17, 2025
|Independently tested and reviewed