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| Finish | GLOSS BLACK POWDER COAT |
| Main Body Shape | Square |
| Material | Carbon Steel |
| Mount Type Description | Blank |
| Receiver Tube Size | 2 IN |
| Side Application Type Description | Blank |
| Tongue Weight (TW) | 350 LB |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
| Weight Carrying Capacity (WC) | 3,500 LB |
| Weight Distribution (WD) | 4,000 LB |
| Weight Distribution Tongue Weight (WDTW) | 400 LB |
| Side Application Type Description | Blank |
| Tongue Weight (TW) | 350 LB |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
| Drop | 3-1/4 IN |
| Finish | GLOSS BLACK POWDER COAT |
| Gross Trailer Weight (GTW) | 3,500 LB |
| Material | Blank |
| Mount Type Description | Blank |

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 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2009 | Mercedes-Benz ML320 | Excluding air ride suspension |
The 07 - 09 Mercedes-Benz ML320 Excluding air ride suspension 2in. CURT Trailer Hitch + Ball Mount + Cover + Lock Kit HWA1900 (Part #HWA1900) fits 2007-2009 Mercedes-Benz ML320 models. The 2009 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 07 - 09 Mercedes-Benz ML320 Excluding air ride suspension 2in. CURT Trailer Hitch + Ball Mount + Cover + Lock Kit HWA1900 (Part #HWA1900) is designed to fit the 2007-2009 Mercedes-Benz ML320.
The 07 - 09 Mercedes-Benz ML320 Excluding air ride suspension 2in. CURT Trailer Hitch + Ball Mount + Cover + Lock Kit HWA1900 (Part #HWA1900) fits the following vehicles: 2007-2009 Mercedes-Benz ML320. Always verify your specific year, make, and model before ordering.
The 07 - 09 Mercedes-Benz ML320 Excluding air ride suspension 2in. CURT Trailer Hitch + Ball Mount + Cover + Lock Kit HWA1900 (Part #HWA1900) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT 13342 fits 2006–2010 Mercedes-Benz ML350 models, except those equipped with Blue TEC engines. However, it will not fit any vehicle equipped with air suspension. If your ML350 is 2010 or newer, the lower rear fascia must be trimmed during installation. Confirm your model year and suspension type before purchasing.
Yes, the CURT 13342 fits 2006–2007 Mercedes-Benz ML500 and 2008–2009 ML550 models, provided they are not equipped with air suspension. The hitch will not fit any vehicle with air suspension.
Yes, the CURT 13342 fits 2007–2008 Mercedes-Benz ML320 CDI models, provided they are not equipped with air suspension. The hitch will not fit any vehicle with air suspension.
No. The CURT 13342 will not fit any vehicle equipped with air suspension. This is a compatibility exclusion that applies to all supported Mercedes-Benz models.
When used as a weight-carrying hitch, the CURT 13342 supports a maximum trailer weight of 3,500 lbs. and tongue weight of 350 lbs. When used as a weight-distribution hitch, it supports a maximum trailer weight of 4,000 lbs. and tongue weight of 400 lbs. You must never exceed your vehicle manufacturer's recommended towing capacity.
Required tools include: 10 mm socket, 13 mm socket, 16 mm socket, 3/4" socket, 9" socket extension, torque wrench, ratchet, 17/32" drill bit, power drill, Torx bit socket, center punch, and aviation shears. Safety glasses must be worn at all times during installation.
The kit includes: (4) 1/2-13 UNC carriage bolts, 1-3/4" long, Grade 8 (part 10-10272); (2) .250 x 1.50 x 3.00" square hole spacers (CM-SP4); (2) .250 x 1.00 x 3.00" square hole spacers (CM-SP6); and (4) 1/2-13 UNC serrated flange nuts, Grade 8 (part 20-00062). The installation also reuses (4) existing M10 nuts from the bumper bracket weld studs.
The manual does not specify whether battery disconnection is required. Contact CURT Technical Support at 877-287-8634 for clarification.
Two people may be required to ease installation. The manual notes that using proper tools will greatly improve the quality of the install and reduce the time required.
Yes, drilling is required. In Step 6, you must drill (2) forward-most holes in the trunk pan using the hitch as a template and a 17/32" drill bit. These holes are used to secure the hitch with carriage bolts and spacers.
Fascia trimming may be required depending on your vehicle. If installing on a 2010 or newer ML350, you must trim the center web of the lower rear fascia, including the center plastic fascia tab and the metal tab it is attached to. For other model years, fascia trimming may be required but is not mandatory. The trunk pan cover may also be trimmed and reinstalled if desired (Step 9).
Use a 17/32" drill bit to drill the (2) forward-most holes in the trunk pan. A power drill and center punch are required.
All M10 fasteners must be torqued to 48 ft-lbs. These are the nuts securing the hitch to the bumper bracket weld studs.
All 1/2" fasteners must be torqued to 110 ft-lbs. These are the carriage bolts and flange nuts securing the hitch to the trunk pan.
The (2) forward-most holes in the trunk pan are drilled using a 17/32" drill bit. The holes are spaced 4.25 inches apart horizontally and 4.38 inches apart vertically, with a 0.50 inch offset. These dimensions are approximate; confirm fit prior to drilling.
Follow these steps in order: (1) Remove fascia screws and center fascia bracket; (2) Remove trunk pan cover nuts and cover; (3) Bend back heat shields and remove M10 nuts from bumper bracket weld studs; (4) Raise hitch into position and secure with M10 nuts, reinstall fascia screws; (5) Remove spare tire, foam locator, and pull back carpet; (6) Drill (2) forward-most holes in trunk pan; (7) Install carriage bolts with spacers and flange nuts; (8) Torque all fasteners; (9) Optionally trim and reinstall trunk pan cover; (10) Bend heat shields back into position.
In Step 4, raise the hitch into position and secure it to the bumper bracket weld studs using the (4) M10 nuts that were removed in Step 3. Gently flex the fascia and fascia brackets to slide the hitch into position. You may temporarily remove the (2) fascia brackets if needed. Reinstall the (2) fascia screws removed in Step 1.
Two types of spacers are used: CM-SP6 spacers (.250 x 1.00 x 3.00") are installed with carriage bolts in the rear-most holes of the trunk pan; CM-SP4 spacers (.250 x 1.50 x 3.00") are installed with carriage bolts in the forward-most drilled holes. Each spacer type is used with (2) bolts.
Yes. In Step 7, after installing the carriage bolts and flange nuts in the trunk pan, use silicone caulk or equivalent to seal the holes. This prevents water and debris from entering the trunk.
Yes. The trunk pan cover may be trimmed and reinstalled if desired. In Step 9, trim the cover as needed (dimensions are approximate; confirm fit prior to trimming) and re-attach it using the (4) nuts that were removed in Step 2. Refer to the trunk pan cover trim diagram on page 5 for guidance.
In Step 5, open the rear hatch and remove the spare tire and foam tire locator. Pull the carpet back by pushing the carpet tab below the plastic trim and carefully folding it towards the front of the vehicle. After drilling and installing the hitch bolts in Step 7, reinstall the carpet, foam spare tire locator, and spare tire.
Safety glasses must be worn at all times while installing this product. The manual also emphasizes that you should never exceed your vehicle manufacturer's recommended towing capacity. If you are hesitant to undertake this task on your own, contact an authorized CURT installer for additional assistance.
After installation, periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. This is a critical maintenance step to ensure safe operation.
The manual states you should periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. No specific interval is provided; consult your vehicle manufacturer's maintenance schedule or contact CURT Technical Support at 877-287-8634 for recommended inspection intervals.
Yes, if your vehicle is: 2006–2010 ML350 (except Blue TEC), 2006–2007 ML500, 2007–2008 ML320 CDI, or 2008–2009 ML550, and does not have air suspension. The hitch will not fit air-suspension vehicles.
Weight-carrying: 3,500 lbs. trailer, 350 lbs. tongue. Weight-distribution: 4,000 lbs. trailer, 400 lbs. tongue. Never exceed your vehicle manufacturer's recommended towing capacity.
10 mm, 13 mm, 16 mm, and 3/4" sockets; 9" socket extension; torque wrench; ratchet; 17/32" drill bit; power drill; Torx bit socket; center punch; aviation shears; and safety glasses.
M10 fasteners (bumper bracket): 48 ft-lbs. 1/2" fasteners (trunk pan): 110 ft-lbs.
Periodically check that all fasteners are tight and all structural components are sound. Retorque fasteners if needed: M10 fasteners to 48 ft-lbs, 1/2" fasteners to 110 ft-lbs.
Gently flex the fascia and fascia brackets to slide the hitch into position. If this does not work, you may temporarily remove the (2) fascia brackets to provide additional clearance. Once the hitch is positioned and secured with the M10 nuts, reinstall the fascia brackets and the (2) fascia screws.
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