Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx Onyx Car Seat

Name: Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx Onyx Car Seat
Brand: Cosco
Rating: 4.4 (2917 reviews)

4.4

Based on 2,917 reviews

Independent Analysis

No paid placements

Review Atlas is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.

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

Questions from real customers

No questions yet. Be the first to ask!

Ranked by similarity score

Product	Rating	Price	Match
Cosco Mighty Fit 65 DX Convertible Car Seat, Heather Onyx Onyx Car Seat	⭐ 4.4	—	Current
Philips AVENT Microwave Steam Sterilizer for Baby Bottles, Pacifiers, Cups and More, SCF281/05 (Pack of 3) 1 Count (Pack of 3) Microwave Sterilizer Without dryer	⭐ 5.0	—
Sassy Ring O Links 9 Piece Set, Links for Stroller or Carrier Seat, 0+ Months Multicolor/Assorted 9 Piece Set	⭐ 4.9	—
Graco 4Ever DLX 4-in-1 Car Seat, Charlie\| Infant to Toddler Car Seat, with 10 Years of Use \| Rear-Facing, Forward-Facing and Booster Modes \| Safe, Comfortable and Convenient DLX Charlie 2.0	⭐ 4.8	—
LOVEVERY \| The Play Gym \| Award Winning For Baby , Stage-Based Developmental Activity Gym & Play Mat for Baby to Toddler	⭐ 4.8	—
Graco Slimfit 3-in-1 Convertible Car Seat, Ultra-Space-Saving Design, Jarret, Suitable for Rear and Forward-Facing, Highback Booster Seat with 10-Position Headrest SlimFit Jarret	⭐ 4.8	—

Researched and written by the Review Atlas editorial team

Our independent, data-driven research process

We analyze the full manufacturer specifications and compare them against competing products
We synthesize verified customer feedback to surface recurring praise and complaints
We track pricing and availability so recommendations reflect real value at today's prices
Manufacturers cannot pay for placement, scores, or favorable coverage
Evaluated using our Baby & Child Health Care Products review criteria

Last updated: November 17, 2025

Independent, reader-supported research

Menu