Nautilus® 65 3-in-1 Harness Booster Car Seat
Nautilus® 65 3-in-1 Harness Booster Car Seat
Sale Price $134.99
Strikethrough List Price $149.99
Clearance - Final Sale
Color available at other retailers
Sale Price $134.99
Strikethrough List Price $149.99
Clearance - Final Sale
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Product Details

The Graco® Nautilus™ 65 3-in-1 harness booster car seat can be used from toddler to youth, keeping your growing child safe. It secures your child in a 5-point harness from 20-65 lb, converts to a belt-positioning booster from 30-100 lb, and becomes a backless booster seat from 40-100 lb. Its Simply Safe™ Adjust harness allows you to adjust the harness and headrest together as your child grows, with no time-consuming rethreading. You'll appreciate the strength of the steel-reinforced frame, position recline for comfort and fit while your little passenger enjoys a personal cup holder and storage compartment.
  • Steel-reinforced frame provides strength and durability for years of smart utility
  • 3-position recline helps keep your growing child comfy
  • Rigorously crash tested to meet or exceed U.S. safety standards helps reassure safety-conscious parents
  • Side Impact Tested* *In addition to meeting or exceeding all applicable US safety standards, the Nautilus™ 65 has been side impact tested for occupant retention solely with the built-in 5-point harness system
  • One-hand, 5-position adjustable headrest is easy to use and grows to properly fit your growing child
  • EPS, energy absorbing foam for effective impact management
  • Contoured armrests with cup holder and large, easy-access storage pockets provide built-in comfort and convenience
  • Open-loop belt guides help you correctly position your vehicle’s seat belt
  • Seat pad, harness and buckle covers are comfortable and machine-washable
  • Color: Sully
  • Model#: 1946243
  • Car Seat Weight With Base: 20.52 lb
  • Car Seat Depth: 18 in
  • Car Seat Height: 28 in
  • Car Seat Weight Without Base: 20.92 lb
Care & Maintenance
  • Machine-washable seat cushion
  • Metal and plastic parts may be cleaned with mild soap and cool water
  • Buckle may be cleaned with a damp cloth
  • Harness straps may be spot cleaned
Product Instructions
Recommended Use
Forward-Facing Harness: 22-65 lb, up to 49"; Highback Booster: 40-100 lb, 43-57", at least 4 years old; Backless Booster: 40-100 lb, 43-57", at least 4 years old
STOP using this child restraint and throw it away 10 years after the date of manufacture.
When forward-facing, children should use the built-in harness system for as long as possible until they reach the maximum forward-facing weight or height for their car seat. At that point, children should ride in a belt-positioning booster seat. A booster is no longer needed once the vehicle seat belt fits properly, typically when they reach 4 feet 9 inches tall and are between ages 8-12. Be sure to check your local and state laws, as well as AAP and NHTSA recommendations, for car seat usage.*
*Graco Supports the American Academy of Pediatrics and National Highway Traffic Safety Administration's Car Seat Guidelines. Visit our safety page for information on car seat usage recommendations.
The display of photographs does not reflect Graco Children’s Products Inc.’s (“Graco”) specific approval or endorsement of the use of the products as portrayed in those photographs. Graco always recommends that the consumer consult the product’s manuals, and abide by the instructions container within those manuals.

Replacement Parts Graco

We at Graco care about safety and the only way we can make sure that the parts of your order are a perfect fit for your Graco product is to ask for the model number and manufacture date of the product you own.

Locating Your Product Information

Model Number

Most Model numbers can be found on the back of your Graco® product. In some Graco products, model numbers can be found on the top of a base unit.

Manufacturing Date

This date refers to the day, month, and year in which a Graco product was made, and can be found on the sticker along with the model number. Here are three examples manufactured date formats:

Model: 7777DEV

Manufactured in 011305

GRACO CHILDREN'S PRODUCTS INC. EXTON PA 1931 1-888-224-5649 Made in U.S.A.


Model: 7777DEV

Manufactured in 20160205

EXTON PA 1931 1-888-224-5649 Made in U.S.A.


Model: 7777DEV

Manufactured in 130105

GRACO CHILDREN'S PRODUCTS INC. EXTON PA 1931 1-888-224-5649 Made in U.S.A.

Rated 1 out of 5 by from Sad it doesn't work I purchased this car seat a month ago and immediately had a problem with the harness not tightening. I reached out to customer service who were slow to get back to me and made the process of getting a new model or a refund difficult, despite the fact that several people mention this problem in their review. My daughter loves this car seat except for the fact that we make her shimmy into it because if we loosen the straps it's a full on work out to get them tight again. If the tightening strap worked properly I'd think this was a great seat. I wouldn't recommend this seat unless you enjoy wresting with a car seat to feel like your child is safe.
Date published: 2020-01-07
Rated 5 out of 5 by from Exceeds all expectations! The Graco Nautilus 3-in-1 car seat arrived exactly as described and exceeded my expectations! Instructions for installation were completely clear and the car seat was set to go in under 10 minutes. Love the look- the pop of color on the trim is very attractive. The storage compartments on the inside of the seat arms are easy access for the kiddos- a great place to stash toys and snacks. The seat is easy to install in the car and I have peace of mind that my littles are safely secured and protected while on the road. The quality and value of this particular seat are apparent- double thumbs up from this satisfied momma!
Date published: 2019-08-29
Rated 5 out of 5 by from 2nd purchase! I bought my first seat 5yrs ago for my son. It has been is favorite seat, has held up amazingly well, is solid & sturdy. So I just bought another one for my daughter who needed to upgrade. They are a heavier carseat & are not the simplest to move from car to car but that is ok for me. I prefer a solid build seat to protect my kids. This seat does not dissappoint!
Date published: 2019-03-27
Rated 5 out of 5 by from Easy Cleaning and more features than most brands I have owned one Nautilus unit for over a year and it has taken considerable beat down from my toddler; I currently have an additional one in transit while writing this review. The extra "cubby" holes are perfect my toddler's rock collecting habits. She also puts any uneaten food in there (instead of somewhere else in the car) so I always know where a smell may be coming from. Safe, easy to clean, and affordable, this is my family's car seat for the foreseeable future.
Date published: 2019-11-15
Rated 4 out of 5 by from Great carseat! Love this carsest for my car in my scion XB. The only downfall is it tall and blocks the view in my husbands nissan frontier. But I feel the truck doesnt have much head room compared to most vehicles (my xb has more). And I dont know of any other options that would provide these features for my tall child for this price. If your vehicle doesn't have much head space, this might block your view more. However, not sure there is anything else available in a highback booster/harness that would be shorter. Other than this problem in my husband's truck, this carseat is perfect.
Date published: 2019-09-16
Rated 5 out of 5 by from Great product Very easy to put together out of box, they have simplified this in recent models.
Date published: 2019-04-30
Rated 5 out of 5 by from Easy to use and install harness booster seat. This is a great seat, very easy to move the shoulder piece up as your child grows. No need to uninstall the seat and move the straps as in other models. We had purchased one for our older child 2 years ago and liked it enough to get a second one for our younger child. This seat met our requirement of fitting nicely in a sedan. We also love that it will carry our kids through the booster stage.
Date published: 2019-05-01
Rated 5 out of 5 by from Easy to Install! We love the nautilus car seat so much we have purchased three of them. It is super easy to install. Love that it has cup holders, is convertible and comfy for our little guys. We Love this car seat and recommend it to everyone. Overall a great well made car seat.
Date published: 2020-04-21
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