The Monroe 555003 Magnum RV Series Black Monotube Shock Absorber is a high-quality part designed specifically for travel trailers. Made in the United States by Monroe, this unit is a single shock absorber with an OEM part number of HD12130657 and an interchange part number of 9150971. It is essential for maintaining the smooth and safe operation of your trailer while on the road. With a strong reputation and a warning for California Prop 65, this shock absorber is a reliable choice for RV enthusiasts and travelers. Exact item is shown. New open box, may include partial packaging. Includes the mounting hardware shown. 14.75 in extended, 9.625 in compressed, 5.125 in travel. Shock Absorber, Magnum RV Series, Nitrogen Gas Charged, Travel Trailer, Retrofit Kit Shock, Axles 2,500-4,600 lbs., Each. RV style applications with 5/8 in. bushing ID. Item weight 3.5 lbs. Made in USA. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties.