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2021 Jeep Gladiator 4-Door Hardtop Leaking at Passenger Door — Expert Fix

Quick answer: A 2021 Jeep Gladiator 4-Door Hardtop leaking at the Passenger Door in All of the Above is almost never a bad door seal - it is the missing body-side weatherstripping Jeep left off the body, so the door seal has nothing to compress against. The permanent fix is adding body-side weatherstripping for the Gladiator; most owners install it themselves in under an hour with no special tools.
Tony, Jeep water-leak expert
Answered by Tony — Jeep Water-Leak Expert
April 26, 2026
Year
2021
Model
Gladiator
Doors
4-Door
Roof
Hardtop
Leaks At
Passenger Door
When
All of the Above
In Rob's words
I have no idea when it's leaking. I've had WeatherTech floor mats and didn't even know till I went to vacuum my rugs. No idea where the water is coming from I thought somebody spilled the water bottle in my car.... I would assume the driver side is next
Tony's fix
Tony
TonyJeep Leak ExpertJeep Wrangler & Gladiator Water-Leak Specialist

Hello Rob,

The wetness that your have discovered under your weather tec mats are one
of the most notorious problems Jeep Gladiator owners discover.

The issue with JEEP Wranglers and Gladiators is that they have never b

On Sun, Apr 26, 2026, 10:47 PM JeepLeakFix Submissions <
jeepleakfix@gmail.com> wrote:

For this 2021 Gladiator, the kit I'd reach for is the Gladiator Leak Fix Kit.

★★★★★4.6/5from194 verified Jeep ownersRead the reviews →
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