Buying Guide
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 Hardcastle's RV Editors
10 min read6 products evaluated
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.
Hardcastle’s RV field notes
The Rig Fit Check
A quick way to connect the shortlist to the space, workload and ownership details that matter after the box arrives.
- 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
The Practical Shortlist
A road-tested-thinking look at 6 options, organized around the job each one suits best.
Best Overall Harness
CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness
CURT controller on a Gladiator
Our take Check price for CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness (opens in a new tab)
Best Sealed Connector
Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022
Wet-weather towing
Our take Check price for Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022 (opens in a new tab)
Best for REDARC Tow-Pro
TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler
REDARC Tow-Pro on a Gladiator
Our take Check price for TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler (opens in a new tab)
Best for Tekonsha and Draw-Tite
Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024
Tekonsha or Draw-Tite on a newer Gladiator
Our take Check price for Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024 (opens in a new tab)
Best Value CURT Harness
CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness
Budget CURT harness
Our take Check price for CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness (opens in a new tab)
Best Low-Cost Harness
307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator
Lowest-cost harness
Our take Check price for 307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator (opens in a new tab)
Why Each Pick Made the Cut
Best Overall Harness1 of 6
CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness on Amazon (opens in a new tab)
CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness makes the shortlist because plug-and-play with no cutting or splicing.
Best for
- CURT controller on a Gladiator
Why it made the shortlist
This model is aimed at CURT controller on a Gladiator. The documented setup centers on 12-gauge wires, fits select Wrangler JL, Gladiator, slit-loom sleeve included.
The most useful documented advantage is plug-and-play with no cutting or splicing. Against the other 5 picks, the useful comparison starts with 12-gauge wires and fits select Wrangler JL, Gladiator. Those details show whether its configuration suits the job better than a neighboring recommendation.
The main limitation to plan around is fitment says only select model years. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- 12-gauge wires
- Fits select Wrangler JL, Gladiator
- Slit-loom sleeve included
Pros
- 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
Cons
- Fitment says only select model years
- Harness only, controller sold separately
Best Sealed Connector2 of 6
Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022 on Amazon (opens in a new tab)
The strongest case for Brake Controller Harness Fit for Jeep Gladiator 2020-2022 Replace TPH-022 is sealed structure aims to keep rain and mud out.
Best for
- Wet-weather towing
Why it made the shortlist
For Wet-weather towing, this is one of the more relevant configurations in the shortlist. The documented setup centers on gladiator 2020-2022 fit, replaces TPH-022, sealed connector design.
Its case starts with sealed structure aims to keep rain and mud out. Against the other 5 picks, the useful comparison starts with gladiator 2020-2022 fit and replaces TPH-022. Those details show whether its configuration suits the job better than a neighboring recommendation.
The trade-off worth checking first is gladiator years end at 2022. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- Gladiator 2020-2022 fit
- Replaces TPH-022
- Sealed connector design
Pros
- 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
Cons
- Gladiator years end at 2022
- No compatible controller models listed
Best for REDARC Tow-Pro3 of 6
TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler on Amazon (opens in a new tab)
TPH-022 Brake Controller Wiring Harness Fit for Jeep Gladiator Wrangler is the better fit when rEDARC Tow-Pro on a Gladiator.
Best for
- REDARC Tow-Pro on a Gladiator
Why it made the shortlist
The intended use case is REDARC Tow-Pro on a Gladiator. The documented setup centers on gladiator 2019-present, rEDARC Tow-Pro Liberty/Elite, nylon-braided copper wire.
What separates it on paper is names REDARC Tow-Pro Liberty and Elite as compatible. Against the other 5 picks, the useful comparison starts with gladiator 2019-present and rEDARC Tow-Pro Liberty/Elite. Those details show whether its configuration suits the job better than a neighboring recommendation.
Before committing, account for third-party part for a REDARC connector. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- Gladiator 2019-present
- REDARC Tow-Pro Liberty/Elite
- Nylon-braided copper wire
Pros
- 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
Cons
- Third-party part for a REDARC connector
- Harness only, no controller included
Best for Tekonsha and Draw-Tite4 of 6
Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024 on Amazon (opens in a new tab)
Choose Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024 for lists Gladiator years through 2024.
Best for
- Tekonsha or Draw-Tite on a newer Gladiator
Why it made the shortlist
Wsays Trailer Brake Controller Wiring Adapter Compatible with Jeep Wrangler 2018-2024 Fit Gladiator 2020-2024 is positioned for Tekonsha or Draw-Tite on a newer Gladiator. The documented setup centers on gladiator 2020-2024, 4-pin standard plug, tinned copper terminals.
The feature doing most of the work here is lists Gladiator years through 2024. Against the other 5 picks, the useful comparison starts with gladiator 2020-2024 and 4-pin standard plug. Those details show whether its configuration suits the job better than a neighboring recommendation.
The practical constraint here is harness only, controller not included. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- Gladiator 2020-2024
- 4-pin standard plug
- Tinned copper terminals
Pros
- 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
Cons
- Harness only, controller not included
- Not for REDARC connectors
Best Value CURT Harness5 of 6
CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness on Amazon (opens in a new tab)
CURT 51527 Quick Plug Electric Trailer Brake Controller Wiring Harness makes the shortlist because quick-plug install with no splicing.
Best for
- Budget CURT harness
Why it made the shortlist
This model is aimed at Budget CURT harness. The documented setup centers on 12-gauge wires, fits select Wrangler JL, Gladiator, quick-plug connector.
The most useful documented advantage is quick-plug install with no splicing. Against the other 5 picks, the useful comparison starts with 12-gauge wires and fits select Wrangler JL, Gladiator. Those details show whether its configuration suits the job better than a neighboring recommendation.
The main limitation to plan around is listing does not explain how it differs from 51526. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- 12-gauge wires
- Fits select Wrangler JL, Gladiator
- Quick-plug connector
Pros
- Quick-plug install with no splicing
- Thick 12-gauge wires
- Compatible with CURT proportional, inertia and time-delay units
Cons
- Listing does not explain how it differs from 51526
- Harness only, no controller
Best Low-Cost Harness6 of 6
307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator on Amazon (opens in a new tab)
The strongest case for 307300 Trailer Brake Controller Harness Fit for Jeep Wrangler Gladiator is keyed design discourages wrong connections.
Best for
- Lowest-cost harness
Why it made the shortlist
For Lowest-cost harness, this is one of the more relevant configurations in the shortlist. The documented setup centers on gladiator 2020-2022, replaces part 307300, keyed foolproof connector.
Its case starts with keyed design discourages wrong connections. Against the other 5 picks, the useful comparison starts with gladiator 2020-2022 and replaces part 307300. Those details show whether its configuration suits the job better than a neighboring recommendation.
The trade-off worth checking first is names no compatible controllers. Confirm the exact model number and included components before ordering. Check dimensions, compatibility and maintenance needs against the way you plan to use and store it.
Key dimensions & specs
- Gladiator 2020-2022
- Replaces part 307300
- Keyed foolproof connector
Pros
- Keyed design discourages wrong connections
- Automotive-grade wire and plastic connectors
- Plug-and-play with no wire cutting
Cons
- Names no compatible controllers
- Gladiator years end at 2022
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.
What Matters Before You Choose a Trailer Brake Controller For Jeep Gladiator
Key buying criteria so you get the right fit the first time.
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.
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.
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.
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.
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.
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.
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. |
Scroll sideways to see every column.
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.
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
Best overall: CURT 51526 Quick Plug Electric Trailer Brake Controller Wiring Harness — best overall harness pick in this roundup. See the full verdicts above for every pick, with pros, cons and who each one suits.
Browse all trailer brake controller for jeep gladiator on Amazon — Prime-eligible options with current pricing.