CURT MANUFACTURING, LLC. part description

Arm yourself with confidence with a CURT Fusion ball mount. Much like our loaded ball mounts, CURT Fusion mounts come with a trailer ball pre-attached to the mounting platform to provide a ready-to-tow solution right out the package. Unlike a loaded ball mount, however, a Fusion ball mount features a trailer ball that is permanently fixed to the shank structure, making it stronger than a traditional non-welded ball mount. With their fixed tow ball, Fusion ball mounts are also very similar to our Euro Mount ball mounts. Besides increased strength, one advantage of a permanently attached trailer ball is that it can never be loosened or stolen from your vehicle. CURT Fusion ball mounts come with 2" x 2" shanks and include a pin and clip with each unit.This particular Fusion mount features a gross trailer weight capacity of 5,000 lbs. and a tongue weight rating of 500 lbs. It measures 8 1/8" long, has 4" of drop and comes with a 1 7/8" diameter trailer ball. CURT Fusion ball mounts are great for towing most standard size trailers, including utility trailers, livestock trailers, boat trailers and campers (NOTE: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). Each unit is robotically welded to ensure accurate, consistent cuts and clean, strong weld lines. Once welded, these ball mounts undergo a cleaning process that creates a flawless surface for the application of our highly durable gloss black powder coat finish for long-lasting resistance to corrosion and chipping.


  • Fits trailer hitches with a 2" x 2" receiver tube opening
  • Welded trailer ball accepts a 1 7/8" coupler
  • Permanently attached trailer ball cannot be loosened or stolen
  • 2" rise for precise trailer leveling
  • Hollow shank weighs less and can be used with an anti-rattle kit
  • Protected by a durable powder coat finish
  • Trailer ball features a polished chrome-plated finish

Product Description

Fusion Ball Mount with 1-7/8" Ball (2" Shank, 5,000 lbs., 4" Drop)

Application Summary

CURT 45151 Fusion Trailer Hitch Mount with 1-7/8-Inch Ball & Pin, Fits 2-Inch Receiver, 5,000 lbs, 4-Inch Drop

Welded trailer ball accepts a 1-7/8" coupler

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Product Attributes

BALL DIAMETER 1-7/8 IN
Box Height In Inches - Xa 2
Box Length In Inches - Xa 7
Box Width In Inches - Xa 4
Class Id 0
Drop 4 IN
Finish - Xa GLOSS BLACK POWDER COAT
Gross Trailer Weight (gtw) 5,000 LB
Item Class - Xa OBS
Item Height - Xa 0.000
Item Length - Xa 0.000
Item Width - Xa 0.000
Parcel Allowed - Xa Yes
Product Weight - Xa 0.000
Rate Class - Xa 70.0
Receiver Tube Size 2 IN
Retail Height - Xa 6.020
Retail Length - Xa 12.600
Retail Width - Xa 8.700
Shipping Weight - Xa 9.000
Tariff 301 - Xa Yes
Tongue Weight (tw) 500 LB
Warranty Limited Lifetime Warranty (One-Year Finish, One-Year Parts)

Additional Information

Country of Origin (Primary) CN
Harmonized Tariff Code (Schedule B) 8708998180
Harmonized Tariff Code (HTS) 8708998180
NAFTA Preference Criterion Code B
Refurbished Part N
Remanufactured Part N
Warranty Special Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Warranty Special UOM TX
UPC 00612314051007

Curt®, a Lippert brand, is a leading manufacturer and supplier of a full line of towing products, including heavy-duty equipment. It also offers fifth wheel, gooseneck, weight distribution hitches, ball mounts, trailer balls, electrical components, bike racks, cargo carriers, and other towing accessories. Headquartered in Eau Claire, Wisconsin, Curt Manufacturing, LLC. has come a long way since it was founded as a trailer ball distribution business in 1993. Two years after its founding, it began manufacturing its own first custom-fit receiver hitch, which was soon followed by countless more. Today, Curt remains the FIRST Name in Towing Products® with over a thousand trailer hitch designs for everything, from vans and passenger cars to SUVs and full-size pickups.

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