CURT Class 3 Trailer Hitch, 2" Receiver, Select BMW X3, X4 Trailer HitchCURTOriginal price was $368.95. Current price is $248.99.In Stock
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2011 - 2026 BMW X3
Confirmed to Fit
2019 - 2025 BMW X4
Confirmed to Fit
Always the correct part
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Always the correct part
We know our products
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Select your vehicle to find the exact plug-and-play parts that fit — no cutting or splicing.
Trailer hitch weight ratings are limited to vehicle manufacturer's stated capacities
Includes installation hardware
Includes installation hardware
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Color: Black
Finish: GLOSS BLACK POWDER COAT
WC / TW (Pounds): 750 / 5,000
Weight Carrying Capacity (Pounds): 5,000
WC Tongue Weight (Pounds): 750
Installation Difficulty: Professional
Installation Time Exact (Minutes): 90
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 BMW X3 and X4 (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 5,000 lbs. GTW and 750 lbs. TW. 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 offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Limited Lifetime (One-year finish, one-year parts)
Equip your vehicle for towing and hitch-mounted accessories with a dependable CURT 2" trailer hitch. Designed for a vehicle-specific fit, CURT receiver hitches provide a strong and secure connection point for towing trailers, carrying bikes, transporting cargo and using other compatible 2-inch hitch accessories.
Our selection of CURT 2-inch receiver hitches includes options for trucks, SUVs, crossovers, vans and passenger vehicles. Each hitch is engineered to match specific vehicle mounting points, helping provide a clean installation and dependable performance. Depending on the vehicle application, available options may include Class 3, Class 4 and heavy-duty receiver hitches with different gross trailer weight and tongue weight capacities.
A 2" x 2" receiver opening is one of the most common hitch sizes and works with a wide range of towing accessories, including ball mounts, bike racks, cargo carriers, hitch steps and tow hooks. When towing a trailer, you may also need a properly rated trailer ball, hitch pin, wiring harness, brake controller or weight distribution system.
CURT trailer hitches feature a durable black finish designed to help protect against rust, scratches and exposure to road conditions. Many models install using existing holes in the vehicle frame, although drilling, trimming or temporary removal of vehicle components may be required for certain applications.
Use our vehicle fitment tools to find the correct CURT 2" trailer hitch for your year, make and model. Always compare the hitch rating with your vehicle’s towing capacity and the ratings of every component in your towing setup. The maximum towing capacity is determined by the lowest-rated component.
Shop CURT 2-inch trailer hitches at TowUniverse for vehicle-specific fitment, trusted towing performance and access to the accessories needed to complete your towing setup.
2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2011 - 2026 | BMW X3 | No Drilling Required Installation Time: 90+ minutes Visibility: Concealed Temporary bumper fascia removal required Temporary bumper removal required Undercar trimming (not fascia) required |
| 2019 - 2025 | BMW X4 | No Drilling Required Installation Time: 90+ minutes Visibility: Concealed Temporary bumper fascia removal required Temporary bumper removal required Undercar trimming (not fascia) required |
The CURT Class 3 Trailer Hitch, 2" Receiver, Select BMW X3, X4 (Part #BKDK13578) fits 2011-2026 BMW X3 models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT Class 3 Trailer Hitch, 2" Receiver, Select BMW X3, X4 (Part #BKDK13578) is designed to fit the 2011-2026 BMW X3.
The CURT Class 3 Trailer Hitch, 2" Receiver, Select BMW X3, X4 (Part #BKDK13578) fits the following vehicles: 2011-2026 BMW X3; 2019-2025 BMW X4. Always verify your specific year, make, and model before ordering.
The CURT Class 3 Trailer Hitch, 2" Receiver, Select BMW X3, X4 (Part #BKDK13578) Drilling is not required for installation. Typical installation time is 90+ minutes. Basic hand tools are typically all you need.
The CURT 13578 trailer hitch has a gross trailer weight (GTW) capacity of 5,000 lbs and a tongue weight (TW) capacity of 750 lbs.
The installation manual does not specify which vehicles are compatible with part number 13578. Contact CURT product support at 877.287.8634 or visit curtmfg.com to confirm fitment for your specific vehicle make, model, and year.
Required tools include: ratchet, rotary cutting tool, 8mm socket, 10mm socket, 18mm socket, 13mm socket (for exhaust hanger), small punch, plastic rivet gun, tape measure, torque wrench, safety glasses, and pry tool. A tools reference guide is available at curtmfg.com/trailer-hitch-installation.
The kit includes one trailer hitch assembly and eight M6 black replacement rivets for reinstalling the wheel well trim.
Yes, the installation is rated as 'Difficult' based on the time and effort involved. The difficulty level may vary depending on installer expertise, vehicle condition, and availability of proper tools and equipment. The installation requires removal and reinstallation of the rear fascia, taillights, bumper beam, wheel well trim, and underbody panel, plus trimming of the underbody panel.
Yes, trimming of the underbody panel is required. The manual provides a reference image for trimming, but notes that all dimensions are approximate and you should confirm fit prior to trimming.
Safety glasses must be worn at all times while installing this product. Additionally, never exceed the vehicle manufacturer's recommended towing capacity when using the hitch.
Installation follows this sequence: (1) Remove underbody panel using 8mm socket; (2) Remove fasteners from rear fascia and wheel well trim using 8mm socket; (3) Remove rivets from wheel well trim using small punch and pry tool; (4) Remove fasteners from bumper cover using 8mm socket; (5) Remove plastic clips and unclip taillight covers using pry tool; (6) Remove interior trunk panel and taillight fastener using 10mm socket; (7) Remove taillight nuts and unplug electrical harness using 10mm socket; (8) Remove fastener under each taillight using 8mm socket; (9) Remove reflectors and fasteners using 8mm socket; (10) Remove rear fascia by releasing press-in tabs and unclipping electrical harness; (11) Remove bumper beam using 18mm socket and exhaust hanger using 13mm socket; (12) Install hitch and bumper beam onto vehicle studs using existing hardware and reattach exhaust hangers; (13) Torque fasteners; (14) Reinstall rear fascia and taillights in reverse order; (15) Trim underbody panel and reinstall.
The manual provides a reference image showing the trim area. All dimensions are approximate, so you must confirm fit prior to trimming. Use a rotary cutting tool to trim the underbody panel according to the reference image provided in Step 15. After trimming, reinstall the underbody panel as it was removed.
Torque all M12 hardware to 86 ft-lbs. Torque all M8 hardware to 23 ft-lbs. Use a torque wrench to ensure proper fastener tension and prevent damage to the product or vehicle.
To remove rivets: push the small center rod through the rivet with a small punch, then pry the rivet from the trim. When reinstalling the wheel well trim, use the supplied replacement M6 black rivets and a plastic rivet gun to fasten them.
Yes, the taillights must be removed during installation. Remove two nuts from each taillight using a 10mm socket, unplug the electrical harness, and gently remove each taillight. After installing the hitch, reinstall the taillights by reassembling components in reverse order.
The exhaust hanger attached to the bumper beam must be removed using a 13mm socket. The passenger-side hanger should be removed from the isolator and returned to the vehicle owner. After installing the hitch and bumper beam, reattach the exhaust hangers using existing vehicle hardware.
Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure. This helps prevent damage to the product or vehicle.
Never exceed the vehicle manufacturer's recommended towing capacity. While the CURT 13578 has a gross trailer weight capacity of 5,000 lbs and tongue weight capacity of 750 lbs, your vehicle's manufacturer may specify a lower limit. Always follow your vehicle manufacturer's towing recommendations.
The manual does not specify compatible vehicles. Contact CURT at 877.287.8634 or visit curtmfg.com to confirm fitment for your specific vehicle.
You will need: ratchet, rotary cutting tool, 8mm/10mm/18mm/13mm sockets, small punch, plastic rivet gun, tape measure, torque wrench, safety glasses, and pry tool.
No drilling is required. The installation uses existing vehicle hardware and fasteners. Trimming of the underbody panel is required using a rotary cutting tool.
Installation is rated as 'Difficult' and requires removal of the rear fascia, taillights, bumper beam, wheel well trim, and underbody panel, plus trimming. Difficulty may vary based on installer expertise and vehicle condition.
Torque M12 hardware to 86 ft-lbs and M8 hardware to 23 ft-lbs using a torque wrench.
Gross trailer weight capacity is 5,000 lbs; tongue weight capacity is 750 lbs. Never exceed your vehicle manufacturer's recommended towing capacity.
Wear safety glasses at all times during installation. Never exceed your vehicle manufacturer's recommended towing capacity when using the hitch.
Yes, a compatible bike rack, cargo carrier or other accessory with a 2" x 2" shank can generally be used. Make sure the accessory does not exceed the hitch’s tongue weight rating, the vehicle’s limits or the accessory manufacturer’s capacity. Account for the combined weight of the carrier and everything loaded onto it.
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Original price was $386.95. Current price is $260.99.You save $125.96 (33%)
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