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{ "prodId": "5423903", "siteId": "BuyBuyBaby", "initOrigin": "https://www.buybuybaby.com" }
Diono

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Free Shipping on Orders Over $39

Have peace of mind while traveling with your little one with the Diono Monterey 4DXT Expandable Booster Seat. Engineered with reinforced materials, expandable side wings and side impact protection, the seat accommodates growing children.

View Full Product Details Buying Guide
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
Diono® Monterey® 4DXT Expandable Booster Seat in Red. View a larger version of this product image.
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Diono
Write Review
Free Shipping on Orders Over $39

Have peace of mind while traveling with your little one with the Diono Monterey 4DXT Expandable Booster Seat. Engineered with reinforced materials, expandable side wings and side impact protection, the seat accommodates growing children.

View Full Product Details Buying Guide
Free Shipping on Orders Over $39

Have peace of mind while traveling with your little one with the Diono Monterey 4DXT Expandable Booster Seat. Engineered with reinforced materials, expandable side wings and side impact protection, the seat accommodates growing children.

View Full Product Details Buying Guide
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Color
Online only
This item is not sold in stores and is not available for same day delivery.
Standard Shipping to 60601 60601
Estimated Delivery -
Free shipping on orders over $39
Qty
1
2
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4
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10+

details

about the product

Have peace of mind while traveling with your little one with the Diono Monterey 4DXT Expandable Booster Seat. Engineered with reinforced materials, expandable side wings and side impact protection, the seat accommodates growing children.
  • Recommended for children 40 to 120 lb. and whose height is between 38" to 63"
  • Contoured to fit and shape to your child's body
  • Adjusts and expands as your little one grows to offer wonderful all-round protection
  • Height and width can be adjusted independently for safety that envelopes their head and shoulders up to 12 years of age
  • Headrest is lined with thick EPP foam for better child comfort and improved side impact performance
  • Deeper side wings and Diono 3-layer side impact protection system built in
  • A simple-to-use dial on the back adjusts the width of the seat to fit a child’s shoulders
  • 11 adjustable headrest positions
  • Belt routing system
  • LATCH compatible
  • Includes cup holders
  • EPP foam coating/EPS coated outer shell
  • Polyester/spandex
  • Cover is machine washable
  • Measures 17.9" L x 24.41" W x 34.45" H
  • Weighs 17 lb.
  • 1-year limited manufacturer's warranty
  • Imported
  • Model 10830 Black; 10834 Blue; 10831 Dark Grey; 10837 Grey 10836 Yellow; 10835 Plum; 10833 Red; 10832 Oyster Grey
  • skuId: 69207228

features

Side Impact Panels
SIP - side impact protection
Number of Recline Positions
1
Number of Head Rest Positions
11
Modes of Use
Backless belt positioning booster, High back belt positioning booster
Car Seat Installation Type
LATCH system
Car Seat Features
Easy to remove fabrics, Side impact protection
Car Seat Comfort Features
Adjustable head support, Cooling fabrics, Cup holder
Warranty
1 year limited warranty
Made In
Imported

specifications

Product Height in
33.86
Product Depth in
16
Product Width in
20
Product Weight lb kg
15.5
Maximum Car Seat Height in
34
Minimum Car Seat Height in
27
High Back Belt Positioning Booster Maximum Height Capacity in
63
High Back Belt Positioning Booster Minimum Height Capacity in
38
High Back Belt Positioning Booster Maximum Weight Capacity lb
120
High Back Belt Positioning Booster Minimum Weight Capacity lb
40
Backless Belt Positioning Booster Maximum Height Capacity in
63
Backless Belt Positioning Booster Minimum Height Capacity in
38
Backless Belt Positioning Booster Maximum Weight Capacity lb
120
Backless Belt Positioning Booster Minimum Weight Capacity lb
40
Color
RED, GREY, YELLOW, PLUM, BLACK, BLUE, DARK GREY, OYSTER GRAY
Part or Model Number
10833, 10837, 10886, 10885, 10880, 10884, 10881, 10832

Accessories

accessories

shipping & returns

Please be aware we've temporarily extended our delivery time frames due to Covid 19 precautions at our facilities. The extended time frames will be reflected in the estimated delivery date shown at checkout.

Free Standard Shipping on Orders Over $39

Free Standard Shipping with any online purchase of $39 (merchandise subtotal excludes store pick up items; merchandise subtotal is calculated before sales tax, before gift wrap charges, and after any discounts or coupons). Truck delivery and shipping surcharges on over-sized or extremely heavy items will still apply (these charges are indicated on the appropriate product information pages and will be displayed in the shipping subtotal of your order). Orders typically arrive within 3-6 business days. Items shipped directly from the vendor or to Alaska and Hawaii have longer delivery lead times. This offer does not apply to Alaska, Hawaii, Puerto Rico or Business Direct orders.

See Full Shipping & Returns Policy

price match promise

We will match prices from our local retail competitors (including their online prices) and from major online retailers (Prices are not matched for marketplace sellers). buybuy BABY will follow any limitations and exclusions set by the competitor. See Details

Ratings & Reviews

Ratings Snapshot

4.444444444444445
8 reviews ·

Would Recommend

6 recommendations

5
7
4
1
3
0
2
0
1
1

Quality

Value

Features

Ease of Use

Style

Write A Review

Customer Reviews

Showing 8 out of 8 reviews

Filter

Sort

Great but color was off
Nativette ·
Recommended Not Recommended

I really loved the chair but the one issue I had was truly the color and how off it was. I ordered the plum because I am expecting and it is gender neutral, so I thought according to the image. Unfortunately the color I received when ordering plum, was more of a purple grape color.


Daughter loves it!
Charmaine ·
Recommended Not Recommended

The design is sleek and comfy!


Comfortable and safe
Jennifer ·
Recommended Not Recommended

I was debating between this diono booster, the chicco zip booster, and the nuna booster and ended up choosing this one. Mostly because it’s the newest model out and Diono has top quality safety features that are hard to compete with. The color is nice and the fabric is soft and super comfortable! The negatives are that it’s pretty big and the seatbelt is a little hard to pull through. But all in all we love it!


5

Features

Ease of Use

5

Style


Problematic
NT ·
Recommended Not Recommended

Broken- had to call the manufacturer to confirm. So had to lug the Gigantic thing back to FedEx to return-and still haven’t received a refund almost 1 month after returning. Car seat may be ok but buyer beware if you want a hassle free experience.


3

Features

Ease of Use

3

Style


A must buy!!
MS3270 ·
Recommended Not Recommended

As a mom of 3 who is super car seat crazy this seat is amazing!! My husband who is a firefighter has seen so many accidents in his time on shift that he will only use Diono in both of our cars. My very tall 6 year old loves how comfortable it is and how you can attach cup holders to it.


5

Quality

5

Value

Reviewer received an incentive in exchange for their honest opinion.

I’m happy with this car seat
Bed Bath & Beyond Customer ·
Recommended Not Recommended

[This review was collected as part of a promotion.] My son love this chair


5

Quality

5

Value


Reviewer received an incentive in exchange for their honest opinion.

This will be the last car seat I buy!
Carol u ·
Recommended Not Recommended

I have a nine year old girl, she’s a tall nine year old,was looking for a big car seat and I found it! Let me tell you this thing is huge and very comfortable.


5

Features

Ease of Use

5

Style


Cadillac of car seats
Huhwhyen ·
Recommended Not Recommended

My little is 8 yrs old 4’ 5” tall & 80lbs and fits comfortably in this booster seat. She loves it! The expandable side wings are the best thing ever. And the bottom part of the booster where she seats on is wider then any other one we tried which is great so she can sit comfortably without her legs being squished together. Definitely recommend this booster and so happy with this purchase. Worth every penny.


5

Features

Ease of Use

5

Style


Customer Reviews

8 reviews · ratings

Filter

Sort

Great but color was off
Nativette ·
Recommended Not Recommended

I really loved the chair but the one issue I had was truly the color and how off it was. I ordered the plum because I am expecting and it is gender neutral, so I thought according to the image. Unfortunately the color I received when ordering plum, was more of a purple grape color.


Daughter loves it!
Charmaine ·
Recommended Not Recommended

The design is sleek and comfy!


Comfortable and safe
Jennifer ·
Recommended Not Recommended

I was debating between this diono booster, the chicco zip booster, and the nuna booster and ended up choosing this one. Mostly because it’s the newest model out and Diono has top quality safety features that are hard to compete with. The color is nice and the fabric is soft and super comfortable! The negatives are that it’s pretty big and the seatbelt is a little hard to pull through. But all in all we love it!


5

Features

Ease of Use

5

Style


Problematic
NT ·
Recommended Not Recommended

Broken- had to call the manufacturer to confirm. So had to lug the Gigantic thing back to FedEx to return-and still haven’t received a refund almost 1 month after returning. Car seat may be ok but buyer beware if you want a hassle free experience.


3

Features

Ease of Use

3

Style


A must buy!!
MS3270 ·
Recommended Not Recommended

As a mom of 3 who is super car seat crazy this seat is amazing!! My husband who is a firefighter has seen so many accidents in his time on shift that he will only use Diono in both of our cars. My very tall 6 year old loves how comfortable it is and how you can attach cup holders to it.


5

Quality

5

Value

Reviewer received an incentive in exchange for their honest opinion.

I’m happy with this car seat
Bed Bath & Beyond Customer ·
Recommended Not Recommended

[This review was collected as part of a promotion.] My son love this chair


5

Quality

5

Value


Reviewer received an incentive in exchange for their honest opinion.

This will be the last car seat I buy!
Carol u ·
Recommended Not Recommended

I have a nine year old girl, she’s a tall nine year old,was looking for a big car seat and I found it! Let me tell you this thing is huge and very comfortable.


5

Features

Ease of Use

5

Style


Cadillac of car seats
Huhwhyen ·
Recommended Not Recommended

My little is 8 yrs old 4’ 5” tall & 80lbs and fits comfortably in this booster seat. She loves it! The expandable side wings are the best thing ever. And the bottom part of the booster where she seats on is wider then any other one we tried which is great so she can sit comfortably without her legs being squished together. Definitely recommend this booster and so happy with this purchase. Worth every penny.


5

Features

Ease of Use

5

Style


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