What Suspension Enhancements Will Reduce Sag on My 2024 Toyota Sienna?

Updated 08/27/2026 | Published 08/20/2026

Products Featured in This Question

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Front Axle

(148)

$246.99

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle

(482)

$227.99

Firestone Coil-Rite Air Helper Springs - Rear Axle

(776)

$158.89

Question:

Hi, I have a 2024 Toyota Sienna XLE FWD. Im interested in purchasing these: CSS-1168R and CSS-1195F. Are these the right parts that help minimize suspension sagging under load? Also, I was wondering if you can confirm that these can be installed in a way that provides an approximately 0.5 to 1 inch lift. I read that if you install this higher up on the coil, it gives the car an extra lift. Is that correct? And is there any installer you would recommend in Cupertino, CA area?

asked by: John Y

Expert Reply:

Hello John,

Thanks for writing in!

Yes, the Coil SumoSprings # CSS-1168R for the rear and # CSS-1195F for the front are both confirmed fits for your 2024 Toyota Sienna XLE FWD and will help support the suspension when you have the van loaded down.

For the rear, though, I actually prefer the Firestone Coil-Rite Air Helper Springs # F4155 if sag is your main concern. Since they are adjustable, you can add air when you have the Sienna loaded down and adjust them as your load changes. I like having that extra control over the rear suspension. If you do go with the air bags, you will want to make sure you always keep at least 5 psi in them, even when the van is unloaded.

I would not count on either option giving you a 1/2" to 1" lift. These are designed to support your factory suspension and help keep the Sienna level under load, not lift it above its normal ride height. Installing the SumoSprings higher in the coil will not give you a specific amount of lift.

I also attached our dealer locator so you can find someone in the Cupertino area that you can pay to install everything for you.

What are you normally carrying that is causing the back of your Sienna to sag?

expert reply by: Kate F

John Y.

8/26/2026

Hi, Thanks for the reply. I don't see any attachment or info on the local installers. Can you email me out list it here? A 7 bike velocirax bike rack and a large thule roof rack when loaded causes noticeable sag and it's easy for the bike rack to scrape when going over bumps. Even though I'm well under the weight capacity for the tow. John

Kate F.

8/27/2026

@JohnY That's a lot bikes! The link is hidden at the bottom of the page, or just put https://www.etrailer.com/installer/near-me into your browser, then you will need to put your zip code in to get a list in your area.