SKU: 71498096099

Monterey® 4DXT Latch 2-in-1 Booster Car Seat

Sale price$179.99 Regular price$199.99
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Description

Monterey® 4DXT Latch 2-in-1 Booster Car SeatMonterey 4DXT Latch 2 in 1 Booster Car Seat Description The original 2 in 1 booster seat with one of a kind, easy adjust, separate height and width expansion. Transforms from a high back booster to a backless booster as your big kid grows. With 15 SafePlus and style upgrades from the Monterey 2XT. Weve taken the award winning Monterey and painstakingly engineered 15 upgrades to create the next generation of boosters. From the remodeled headrest,

Monterey® 4DXT Latch 2-in-1 Booster Car Seat

Description

The original 2-in-1 booster seat with one of a kind, easy-adjust, separate height and width expansion. Transforms from a high-back booster to a backless booster as your big kid grows. With 15 SafePlus® and style upgrades from the Monterey® 2XT.

We’ve taken the award-winning Monterey and painstakingly engineered 15 upgrades to create the next generation of boosters. From the remodeled headrest, enhanced fabric covering, contoured seat base and breathable exo-shell panels, we’ve considered every last detail to create a contemporary new look. Contoured to fit and shaped in harmony with your child, Monterey 4DXT adjusts and expands as your little one grows to offer wonderful all-round protection. The height and width can be adjusted independently for safety that envelopes their head and shoulders up to 12 years of age. A simple-to-use dial on the back adjusts the width of the seat to fit a child’s shoulders up to 20” wide, while the headrest adjusts up to 6.4” height with one hand for an easy precise fit. The remodeled headrest is lined with thick EPP foam for better child comfort and improved side impact performance.

This is combined with deeper side wings and Diono 4-layer Side Impact Protection System built in. From the EPP foam coating, to the molded rigid shell casing and EPS coated outer shell, we’ve lovingly engineered every detail to keep your little one safe, mile after mile. Here at Diono we don’t just stop at superior safety. The ergonomically contoured seat base improves the child seating position with luxury AIRTEK foam cushioning for total child comfort. We’ve even added breathable exo-shell side panels to enhance airflow to keep them cool on the move. We've reduced the width of the vehicle seatback to make installation easier, improving access to vehicle seatbelts and promoting independent buckling. And with easily removable backrest and intuitive belt guides, the Monterey 4DXT offers 2 seats in 1 when they are ready to graduate to a backless booster. Like all Diono boosters, expect up to 8 years of reliable service. So, when it comes to your next booster, look to the Monterey 4DXT latch to take your child on their journey in safety and style.

 

Features

 

  • 8 Years One Booster - for your big kid from 40 - 120 lb. It's all you will ever need.
  • Easy-adjust - 11-position headrest that grows up with your child. Engineered for safety and comfort with 2 layers of SafePlus® Side Impact Protection.
  • One of a kind - easy-adjust expandable backrest allows up to 6.5 in to grow with your big kid. With 4 layers of SafePlus® Side Impact Protection and deep padded cushioning.
  • Two built-in retractable 2-in-1 cup holder and snack tray - keeps your big kid's drink close at hand and stows away their essentials.
  • Our contoured premium soft fabrics - with layered foam padding that provide comfort and support can be easily removed for machine washing.
  • SafePlus® belt guides - easy access to seatbelt buckle help your big kid with self buckling - don't forget to check though!
  • Easy, quick and secure installation - engineered with automotive steel LATCH connectors and 2 easy adjust LATCH straps allow you to quickly tighten and secure your booster to your vehicle.
  • Engineered with side impact protection - our rigid shell is reinforced with 2 layers of high-impact aluminum and EPS energy absorbing foam,to protect the head, shoulders, and torso.

 

Specifications

 

  • Product Height (in): 27.2
  • Product Width (in): 20.5
  • Product Depth (in): 16.1
Video

FAQ

Monterey® 4DXT Booster, Instruction Manual, Cup Holder

Diono booster seats can be used for children weighing 40-120 lbs. (18-54 kg) and are 38-63 in. (96.5-160 cm) tall. Typically once a child reaches 5 years of age they are mature enough to ride in a booster seat.

Diono high back boosters with a detachable back are the Monterey® 4DXT, Monterey® 2XT, Cambria® 2. All come with a detachable back to convert into a backless booster seat.

Our booster seats fit 2 across in most cars. Each vehicle model is different and allows for various seating positions. Consumers should consult vehicle owners manual for appropriate car seat placement in their car that may fit more than 2 across.

Solana® comes with fabric cup holders in the cover. Solana® 2, Cambria® 2, Monterey® XT, Monterey® 2XT, and Monterey® 4DXT come with two retractable cup holders. The Monterey® 5iST FixSafe™ includes a Radian® cupholder with easy snap in installation.

The Monterey® 4DXT is recommended to be installed with the lower anchors if you vehicle is equipped with them. However, it can be used without.

Diono booster seats are not meant to be used on airplane. Boosters require a lap/shoulder belt and airplanes only have a lap belt.

All Diono booster seats have a life span of 8 years, starting from the date you purchase your seat. In the event the date of purchase cannot be determined then we use the date of manufacture.

Please consult the seat manual. Diono Cambria and Monterey seats manufactured prior to 2017 can be used with Ford's inflatable seat belts. Newer models will not allow them to be used and will be stated in the car seat's manual.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71498096099

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4.3 ★★★★★
Based on 21 reviews
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A
Verified Purchase
a customer
Charlottesville, US
★★★★★ 5
My dog loves these toys.
Size: Mini, Color: Gator (Pink)
Not a huge toy, nor is my dog. But we have lots of goDog toys. Practically indestructible and my dog likes to carry these in his mouth and bring them onto the foot of our bed. Brilliant colors and good squeaker but my dog is afraid of the squeak. Fair value for cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
U
Verified Purchase
University Doc
Waukegan, US
★★★★★ 5
Our XL dogs love them. Highly recommend it!
Size: Mini, Color: Gator (Pink)
Our XL dogs love this! Highly recommend them! Highly recommend. Not for aggressive chewers but our big dogs don't destroy their toys. They cherish them. Great for play and cuddling. Not to loud either. Very cute.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
V
Verified Purchase
Valhalla49
Alexandria, US
★★★★★ 5
When they said strong...
...they weren't kidding. Our pup would chew through everything she could get her sharks teeth into. Like my arms. Nothing lasted as long as a week or maybe two. But she has had Dino for months now. She loves him. He is the go to toy for when she wants to play tug. The material used to make this toy is every bit as strong as the seller claims. I will definitely buy from them again. And I will not wait for this one to rip. I may be waiting a long time. If your pup likes to tear stuff apart, feel safe in buying this toy, UPDATE: 2/9/2023 Dino finally succumbed to the torture. His back ripped open and despite trying to repair him with ordinary thread he couldn't withstand the pressure, His stuffing was removed and spread all over the living room. Completely emptied he is still a good toy. Strong enough to withstand the forceful play of tug-o-war. Only thing I would suggest is to use something stronger when closing his back. The rest of him is great. I will be replacing him soon.
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Reviewed in the United States on January 30, 2023
R
Verified Purchase
Rachel
Boise, US
★★★★★ 4
Not so tough
Size: Mini, Color: Gator (Pink)
I bought this because I dog sit. The dog chews up every. Single. Toy. So I bought it since it was cheap and it can be in the “chunk” (the dog’s name) toy box. It is not durable at all. He tore it up just as fast as a cheaply made toy. Chunk LOVES it! He would not stop playing with it. He loves the squeakers, it is a perfect size for him to throw it up in the air and chase it, and he loved ripping the legs off. It is good for my husband and I because there is little to no fluff. However, it is the perfect size to drop behind the couch and not be able to get. So once he drops it behind the couch, he won’t get it until morning. Now for my dog’s rating. My dog loves this toy too. He is much more gentle with toys (he has $5 Walmart toys we bought him back in 2020 in perfect condition that he plays with them every day). Before Chunk came over for the weekend, my dog Ted played with this. Ted is a larger small dog and chunk is a smaller small dog. And it is still the perfect size for both dogs.
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Reviewed in the United States on April 26, 2026
S
Verified Purchase
Scott T
Boise, US
★★★★★ 5
Tough
Size: Large, Color: Dinos Frills (Pink)
Tough dog toy that's held up through multiple washes! My dogs love the squeaker. They are not destructive chewers so I can't really say how it would hold up with that kind of dog though.
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Reviewed in the United States on June 8, 2026

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