Buying guide · 10 min read · Updated October 2, 2026

6 Best Trailer Brake Controller For Jeep Gladiator in 2026: A Practical RV Guide

Jeep Gladiator trailer brake controller guide: six plug-in harnesses compared by Gladiator years and controller brands, plus what to check first.

By Bowen HigginsRV Editor at RV Gear Lab6 products comparedSpec-sheet researched

At a glance

Our top picks

At a glance · 6 picks

01
Best Overall Harness CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness ↓ See why we picked it
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02
Best Sealed Connector Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022 ↓ See why we picked it
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03
Best for REDARC Tow-Pro TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler ↓ See why we picked it
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04
Best for Tekonsha and Draw-Tite Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024 ↓ See why we picked it
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05
Best Value CURT Harness CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness ↓ See why we picked it
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06
Best Low-Cost Harness 307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator ↓ See why we picked it
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Every pick in this Gladiator guide is a wiring harness, which is how most brake controllers connect to a Jeep. None of them brakes a trailer on its own, so each pairs with a controller you buy separately.

The harnesses are ordered by how clearly their listings state Gladiator years and compatible controller families. Start by checking whether your Gladiator has a harness port under the dash at all, and match the connector, not just the model name.

RV Gear Lab field notes

The Rig Fit Check

Start with the job: CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness leads this shortlist for CURT controller on a Gladiator. Use that fit as a reference point, then compare the alternatives against your own space and workload.
Specs that separate the picks: The first details to compare are 12-gauge wires, Gladiator 2020-2022 fit, Gladiator 2019-present. Confirm the exact model and included components before ordering.
Trade-off to plan for: Fitment says only select model years

Before you buy

What Matters Before You Choose a Trailer Brake Controller For Jeep Gladiator

Key buying criteria so you get the right fit the first time.

01
Factory controller or harness port
Some Gladiator trims were built with a trailer brake controller, and a truck with one needs no aftermarket unit. A truck without it may have a harness port under the dash that these parts plug into, while others need a hardwired install. Look under the dash near the steering column for a spare connector before you buy anything.
02
Harness is not a controller
Every listing in this guide is wiring, so none of them applies trailer brakes by itself. The controller, whether proportional or time-delay, is a separate purchase and the brain of the system. Check that your cart or order includes a controller and that its rear plug matches this harness.
03
Model year range on the listing
Gladiator production began for the 2020 model year, but listings may say 2019 or give different end years. The wrong connector means a return and a delay before a trip. Compare the listed Gladiator years with your truck's actual year, and treat a list that ends before your year as a no.
04
Connector family and controller brand
Tekonsha, Draw-Tite, CURT and REDARC controllers do not all share the same rear plug. A harness built for one family can fit physically yet fail on another. Look for the controller brands named on the harness listing, or confirm the controller's manual lists the same plug.
05
Wire gauge and sealing
Brake controllers feed current to the trailer's brake magnets, and thin wire can drop voltage over a long run. Listings that say 12-gauge or sealed connectors give you something concrete to compare. Look for a stated gauge or sealed design, and treat vague words like durable as unconfirmed.
06
Brake wire power at the 7-pin
Even with a good harness, trailer brakes only work if the Jeep's 7-pin socket has a live brake output. Some trucks need a fused feed added. Check with a test light or a shop before the first trip, and confirm the controller shows trailer connected.

Our standards

Why You Can Trust RV Gear Lab

At RV Gear Lab, we compare products based on rig fit and power or hookup compatibility, verified specifications, usability, setup requirements, weight, durability, and real-world trade-offs. We do not rank products purely on marketing claims or commission rates.

We have not personally tested every product listed. Where hands-on testing is not available, recommendations are based on verified manufacturer specifications, product documentation, use-case fit, and comparative research.

How we review RV gear →

Detailed reviews

The 6 best trailer brake controller for jeep gladiator, explained

Best Overall Harness · 1 of 6

CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness

12-gauge wires
Fits select Wrangler JL, Gladiator
Slit-loom sleeve included

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Best for: CURT controller on a Gladiator

Our take

Best for a Gladiator owner pairing the harness with a CURT controller.

Why it made the shortlist

The CURT 51526 is a quick-plug wiring harness listed for select Jeep Wrangler JL and Gladiator model years. It uses 12-gauge wires and a slit-loom sleeve, and the listing says it needs no cutting or splicing.

Against the third-party harnesses below, the CURT parts come from the brand that also sells the controllers they plug into.

What works

Plug-and-play with no cutting or splicing
12-gauge wires carry steady power
Works with proportional, inertia or time-delay CURT units
Slit-loom sleeve keeps wiring tidy

Watch out for

Fitment says only select model years
Harness only, controller sold separately

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Best Sealed Connector · 2 of 6

Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022

Gladiator 2020-2022 fit
Replaces TPH-022
Sealed connector design

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Best for: Wet-weather towing

Our take

Best for a 2020 to 2022 Gladiator towing in wet or muddy conditions.

Why it made the shortlist

The TAZSOK harness is listed for Jeep Gladiator 2020 to 2022 and Wrangler 2018 to 2022 and is sold as a replacement for part TPH-022. The listing highlights a sealed connector design meant to reduce the effect of rain and mud.

Compared with the CURT 51526, it is a third-party part with no controller-brand compatibility list on the listing.

Because no compatible controller models are named, check that your controller's plug matches the TPH-022 style first.

What works

Sealed structure aims to keep rain and mud out
Listing states Gladiator and Wrangler years
Plug-and-play with no special tools
Matches a recognized TPH-022 part number

Watch out for

Gladiator years end at 2022
No compatible controller models listed

The catch: Compared with the Fozipamy TPH-022, it shares that part number but states a shorter Gladiator year range, ending at 2022.

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Best for REDARC Tow-Pro · 3 of 6

TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler

Gladiator 2019-present
REDARC Tow-Pro Liberty/Elite
Nylon-braided copper wire

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Best for: REDARC Tow-Pro on a Gladiator

Our take

Best for a Gladiator owner buying a REDARC Tow-Pro controller.

Why it made the shortlist

The Fozipamy harness is listed for Jeep Gladiator from 2019 to present and Wrangler from 2018 to present, as a replacement for TPH-022. Its listing names REDARC Tow-Pro Liberty and Elite controllers as compatible.

It also states the widest Gladiator year range of the picks here, which helps if you have a 2019 truck.

What works

Names REDARC Tow-Pro Liberty and Elite as compatible
Widest stated Gladiator year range here
Nylon braid protects against wear and heat
Plug-and-play with no cutting

Watch out for

Third-party part for a REDARC connector
Harness only, no controller included

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Best for Tekonsha and Draw-Tite · 4 of 6

Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024

Gladiator 2020-2024
4-pin standard plug
Tinned copper terminals

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Best for: Tekonsha or Draw-Tite on a newer Gladiator

Our take

Best for a newer Gladiator owner with a Tekonsha or Draw-Tite controller.

Why it made the shortlist

The Wsays adapter is listed for Gladiator 2020 to 2024 and Wrangler 2018 to 2024, with a four-pin standard plug. Its listing names Draw-Tite Activator I, II and III and Tekonsha PowerTrac, Prodigy and P2 controllers as compatible.

It reaches to 2024 models, a later year than the TAZSOK Harness or Vaticas 307300 list. It also targets a different connector family than the Fozipamy TPH-022, since its listed controllers are Tekonsha and Draw-Tite models.

Its price sits between the budget harnesses and the CURT parts, and you still need a controller.

What works

Lists Gladiator years through 2024
Names specific Tekonsha and Draw-Tite controllers
Tinned copper terminals and nylon mesh tubing
Plugs into the port under the dashboard

Watch out for

Harness only, controller not included
Not for REDARC connectors

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Best Value CURT Harness · 5 of 6

CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness

12-gauge wires
Fits select Wrangler JL, Gladiator
Quick-plug connector

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Best for: Budget CURT harness

Our take

Best for a Gladiator owner who wants the CURT brand name and a lower price, with a CURT controller.

Why it made the shortlist

The CURT 51527 is another quick-plug harness listed for select Jeep Wrangler JL and Gladiator years, with 12-gauge wires and a slit-loom sleeve. Its listing text is nearly identical to the CURT 51526.

Because both CURT parts use the same description, the model number is what to match, not the wording, so compare the part number against CURT's lookup for your exact truck. It is lower priced than the CURT 51526, which makes it the cheaper CURT route if your lookup shows it fits.

Do not buy both numbers; one will not fit your connector.

What works

Quick-plug install with no splicing
Thick 12-gauge wires
Compatible with CURT proportional, inertia and time-delay units

Watch out for

Listing does not explain how it differs from 51526
Harness only, no controller

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Best Low-Cost Harness · 6 of 6

307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator

Gladiator 2020-2022
Replaces part 307300
Keyed foolproof connector

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Best for: Lowest-cost harness

Our take

Best for a shopper on a tight budget with a 2020 to 2022 Gladiator who has confirmed the connector style.

Why it made the shortlist

The Vaticas 307300 is a third-party harness listed for Jeep Gladiator 2020 to 2022 and Wrangler 2018 to 2023, as a replacement for part 307300. It describes a foolproof interface meant to prevent misconnection, with automotive-grade wire.

It is the lowest-priced pick here and sits at the thin end of the documentation: it names no compatible controllers, unlike the Wsays Adapter and Fozipamy TPH-022. Its Gladiator years end at 2022.

What works

Keyed design discourages wrong connections
Automotive-grade wire and plastic connectors
Plug-and-play with no wire cutting

Watch out for

Names no compatible controllers
Gladiator years end at 2022

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Methodology

How We Built This Shortlist

Each pick was assessed across 5 criteria weighted for real-world use.

Gladiator year coverage

We compared the Gladiator and Wrangler years each listing names, since several end at 2022 and one runs through 2024.

Controller compatibility

We checked whether each listing names controller brands and models, because connector styles differ between Tekonsha, Draw-Tite and REDARC.

Part number cross-reference

We compared TPH-022 and 307300 references so you can match against your own old part or a controller manual.

Wire gauge and protection

We noted wire gauge, braid or loom, and any sealed connector described on the listing.

Clarity of the listing

We favored listings that say what the harness fits and flagged ones that leave gaps you need to verify.

Decision guide

Match a Trailer Brake Controller For Jeep Gladiator to Your RV

By Your Controller Brand

Your situation	Recommended pick	Why
CURT controller with a quick plug	CURT 51526	Same brand as the controller and listed for Gladiator.
CURT controller, lowest CURT price	CURT 51527	Matches the 51526 listing at a lower price.
REDARC Tow-Pro Liberty or Elite	Fozipamy TPH-022	Names those REDARC models as compatible.
Tekonsha or Draw-Tite controller	Wsays Adapter	Names Tekonsha and Draw-Tite controllers on the listing.
Unsure, wants a sealed connector	TAZSOK Harness	Sealed connector and TPH-022 reference.

By Budget

Budget	Recommended pick
$10 to $30	Vaticas 307300 or CURT 51527
$20 to $40	Wsays Adapter or Fozipamy TPH-022
$30 to $40	TAZSOK Harness or CURT 51526

CURT Harness vs Third-Party Harness

CURT harness

The CURT 51526 and CURT 51527 come from a brand that also makes controllers and use a quick-plug connector they document.

Third-party harness

The TAZSOK Harness, Fozipamy TPH-022, Wsays Adapter and Vaticas 307300 are lower in price and tied to part numbers like TPH-022 or 307300.

Pick CURT if you are buying a CURT controller; pick the Fozipamy TPH-022 or Wsays Adapter when the listing names your controller.

By Model Year Range

Your Gladiator	Recommended pick
2019 or earlier-listed trucks	Fozipamy TPH-022
2020 to 2022	TAZSOK Harness
2020 to 2022, lowest price	Vaticas 307300
2023 or 2024	Wsays Adapter

For a Travel Trailer Specifically

Look for

A controller rated for your trailer's axle count, plus a harness whose listing names that controller family; Wsays Adapter names several Tekonsha and Draw-Tite models.

In this comparison

The Wsays Adapter and CURT 51526 give the clearest brand matching, while Fozipamy TPH-022 is the one for a REDARC Tow-Pro.

When to Spend More

Spend more if

Spend more on the CURT 51526 when you want a brand-backed harness for a CURT controller, since its listing documents wire gauge and quick-plug compatibility.

Save if

Save with the Vaticas 307300 or CURT 51527 if you have confirmed the connector, and skip any harness that does not match your controller family.

FAQ

Before You Bring One Home

Does the Gladiator come ready for a brake controller?

Some Gladiators have a plug under the dash meant for a controller harness, and some trims were built with a factory controller. Check under the dash and your owner's manual first. If you find neither, you may need a hardwired install.

Can I use just one of these harnesses to brake my trailer?

No. Each is wiring only. You must add a controller, and its rear plug must match the harness connector.

What does TPH-022 mean?

It is a REDARC harness part number for Jeep Wrangler and Gladiator. The TAZSOK Harness and Fozipamy TPH-022 both reference it, so confirm that your controller uses the same plug.

Are the two CURT harnesses interchangeable?

Not necessarily. Their listings read almost the same, but they are different part numbers and may fit different connectors or years. Use CURT's fitment lookup for your exact truck.

How do I install a harness like these?

Plug the vehicle end into the Jeep's under-dash port, and the controller end into the rear of the controller. Mount the controller, power on, and set the gain on a dry level road.

Bottom line

The short version

Browse more trailer brake controller for jeep gladiator on Amazon →

About the author

Bowen Higgins

RV Editor at RV Gear Lab

Bowen covers RV power, water systems, towing and leveling, upkeep and interior comfort, with a focus on matching gear to the rig, the hookups and the way you actually travel.

6 Best Trailer Brake Controller For Jeep Gladiator in 2026: A Practical RV Guide

Our top picks

The Rig Fit Check

What Matters Before You Choose a Trailer Brake Controller For Jeep Gladiator

Factory controller or harness port

Harness is not a controller

Model year range on the listing

Connector family and controller brand

Wire gauge and sealing

Brake wire power at the 7-pin

Why You Can Trust RV Gear Lab

The 6 best trailer brake controller for jeep gladiator, explained

How We Built This Shortlist

Gladiator year coverage

Controller compatibility

Part number cross-reference

Wire gauge and protection

Clarity of the listing

Match a Trailer Brake Controller For Jeep Gladiator to Your RV

By Your Controller Brand

By Budget

CURT Harness vs Third-Party Harness

By Model Year Range

For a Travel Trailer Specifically

When to Spend More

Before You Bring One Home

Does the Gladiator come ready for a brake controller?

Can I use just one of these harnesses to brake my trailer?

What does TPH-022 mean?

Are the two CURT harnesses interchangeable?

How do I install a harness like these?

The short version

Bowen Higgins

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