
Ask a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.












Always the correct part
We know our products
Quality Products
Free Shipping!












Always the correct part
We know our products
Quality Products
Free Shipping!
Complete CURT Class 3 2" trailer hitch and 7-way custom wiring kit engineered for the 2003 - 2004 Frontier Long bed. Vehicle-specific fit, plug-and-play installation, supports trailers with electric brakes, auxiliary 12V power and reverse lights.
This custom kit fits the following vehicles:
All Hardware and Installation Instructions Included!
Whatever your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Nissan Frontier (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 5,000 lbs. GTW and 500 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 6,000 lbs. WD and 600 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.
CURT custom wiring connectors and harnesses are the easiest way to outfit your vehicle with a trailer wiring connection for towing. Each one is custom-fitted to work with a specific make and model. This particular 7-way RV blade socket is designed to be a custom wiring option for certain years of the Nissan Frontier, Pathfinder, Xterra and Suzuki Equator (see application info to verify fitment). It provides a universal trailer connection for the tail lights, brake lights, reverse lights, turn signals, electronic trailer brakes and auxiliary power. 7prong taillight wiring can be used as a replacement or new wiring and is typically used for towing fifth wheel and gooseneck trailers. This 7 way female outlet comes with all necessary hardware to establish a solid connection, as well as a dust cover to keep the connector socket clean when not in use. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this factory tow package socket is not equipped on every vehicle, a CURT custom wiring connector (also called a T-connector) utilizes the socket for simple, stress-free installation. Instead of cutting, splicing and soldering into your vehicle's wiring system, the custom wiring connector uses a single OEM compatible plug and instantly provides a standard vehicle-to-trailer hitch wiring connection. To ensure long-lasting reliability, all CURT custom tconnector wiring is thoroughly tested for optimal functionality.
Experts available to answer your questions
Call 888-634-9494The hitch weight is 44 lbs.
CURT part number 13842 is designed for 2003–2004 Nissan Frontier with 2-door or 4-door cab and long box only. If your Frontier is a different model year, cab style, or has a short box, this hitch is not compatible. Verify your vehicle's year, cab configuration, and bed length before purchasing.
No. The hitch mounting plate has a cutout designed to align with the vehicle exhaust pipe. During installation, you must align the cutout in the mounting plate with the vehicle exhaust pipe to ensure proper clearance and prevent interference.
The hitch includes: 2 hex head cap screws (HHCS) 1/2-13 UNC 1-1/2 inch grade 8; 8 hex bolts 7/16-14 grade 8; 4 serrated flange nuts 7/16-14 UNC grade 8; 4 flat washers 7/16 inch; 4 split-cone washers 7/16 inch; 2 split-cone washers 1/2 inch; and 2 nut plate weldments. All fasteners are grade 8 and yellow zinc-plated.
Yes. The first installation step is to insert the nut plates into the vehicle frame and align the holes in the frame with the nut plates. This must be done before raising the hitch into position.
1. Insert nut plates into the vehicle frame and align frame holes with the nut plates. 2. Raise the hitch into position. 3. Loosely attach the hitch to the frame at mounting locations near the bumper using the 1/2 inch hex bolts provided. 4. Use 7/16 inch hex bolts in all remaining fastener locations as shown in the diagram. 5. Torque all 7/16 inch fasteners to 70 lb.-ft. and all 1/2 inch fasteners to 110 lb.-ft. 6. Align the cutout in the mounting plate with the vehicle exhaust pipe.
Leave fasteners loose initially. First, loosely attach the hitch to the frame at mounting locations near the bumper with the 1/2 inch hex bolts. Then use 7/16 inch hex bolts in remaining locations. Only after all fasteners are in place and the hitch is properly aligned should you torque them to their final specifications.
All 7/16 inch fasteners must be torqued to 70 lb.-ft.
All 1/2 inch fasteners must be torqued to 110 lb.-ft.
The hitch mounting plate must be aligned with existing frame holes on both sides of the vehicle. Additionally, the cutout in the mounting plate must be aligned with the vehicle exhaust pipe. The hitch also mounts to the inside of the bumper bracket as shown in the installation diagram.
The manual specifies gross load capacity limits for weight-carrying use, but the specific trailer weight and tongue weight values are not filled in on the parts list. Contact CURT Manufacturing technical support at 1-877-287-8634 for the exact capacity. Regardless of hitch capacity, do not exceed your vehicle manufacturer's recommended towing capacity.
The manual specifies gross load capacity limits for weight-distribution use, but the specific trailer weight and tongue weight values are not filled in on the parts list. Contact CURT Manufacturing technical support at 1-877-287-8634 for the exact capacity. Regardless of hitch capacity, do not exceed your vehicle manufacturer's recommended towing capacity.
Do not exceed your vehicle manufacturer's recommended towing capacity. This is a critical warning stated in the manual and must be followed regardless of the hitch's rated capacity.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. The manual does not specify an exact interval, but regular inspection is essential for safe operation.
CURT Manufacturing warrants this product to be free of defects in material and workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective, CURT will repair or replace it at their option when returned prepaid with proof of purchase. Warranty is voided by alteration, misuse, or improper installation.
Yes, if your Frontier is a 2003–2004 model with a 2-door or 4-door cab and long box. This hitch does not fit short-box models or other model years.
Torque 7/16 inch fasteners to 70 lb.-ft. and 1/2 inch fasteners to 110 lb.-ft.
The kit includes 2 hex head cap screws (1/2 inch), 8 hex bolts (7/16 inch), 4 serrated flange nuts (7/16 inch), washers, and 2 nut plate weldments. All fasteners are grade 8 steel.
Yes. The hitch mounting plate has a cutout that must be aligned with the vehicle exhaust pipe to prevent interference.
Do not exceed your vehicle manufacturer's recommended towing capacity, even if the hitch is rated higher.
Yes, the Curt 56226 is designed for Nissan Frontier, Pathfinder, and Xterra, as well as Suzuki Equator. It is classified as a SUV/Mini & Full-Sized Van (S) connector. Verify your vehicle model matches the application list before purchasing.
Yes, the Curt 56226 custom wiring connector is compatible with the Suzuki Equator. It is designed for SUVs, Mini & Full-Sized Vans in the S category.
You will need a panel trim removal tool and a flat blade screwdriver. These are the only tools specified in the installation instructions.
The Curt 56226 includes a custom wiring connector with relays, a 7-way harness connector, cable ties for securing loose wires, and a 4-flat dust cover to help prevent corrosion. A bracket for mounting the 7-way end is not included and must be sourced separately.
Yes, you must disconnect the negative battery terminal before beginning installation. This is the first step in the installation process.
The vehicle 12-pin wiring connector is located behind the passenger side kick panel. You must first remove the sill plate by pulling upwards on the front passenger side, then remove the kick panel to access the connector. The connector will be similar to the one on the harness with the relays.
Insert the custom wiring connector with relays fully into the vehicle 12-pin connector, ensuring the locking tabs are in place. Secure any loose wires with the provided cable ties.
The vehicle factory tow plug is located on the driver side, along the frame rail behind the rear bumper. Remove the protective cap carefully, taking care not to damage the locking tabs.
Insert the 7-way harness connector into the vehicle tow harness connector, ensuring the locking tab is in place. The connector will be similar to the one on the 7-way harness.
Route the 7-way connector to the center of the vehicle. Mount the 7-way end in an accessible location using a bracket (not included). Secure any loose wires with the provided cable ties.
Reinstall all items removed during installation, reconnect the negative battery terminal, and install the provided 4-flat dust cover to help prevent corrosion.
Test for proper function by using a test light or by connecting a properly wired trailer. All steps must be followed to ensure the wiring connector will function properly.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating and potential fire. Refer to your vehicle owner's manual or contact the vehicle manufacturer for specific lamp load rating information.
Yes, the Curt 56226 is designed for these vehicles in the SUV/Mini & Full-Sized Van (S) category.
Tools: panel trim removal tool and flat blade screwdriver. Included parts: custom wiring connector with relays, 7-way harness, cable ties, and 4-flat dust cover. You must source a bracket separately for mounting the 7-way end.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating and potential fire.
On Sale Today
Original price was $665.90. Current price is $589.57.You save $76.33 (11%)
Free Shipping
Ships free on all orders





Quick Ship
In stock and ready to ship — order now!
FREE ShippingFREE SHIPPING
Estimated delivery Sat, Aug 29 - Tue, Sep 1
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
No reviews have been added for this product.