Check the listing for details. Tie Down 750E Drum Brake Surge Actuator | 70522. Condition: New. Listed at 349.49 USD. Tie Down 750E Drum Brake Surge Actuator Product Description: The Tie Down Model 750E Drum Brake Surge Actuator works by the "surge" or "push" of the trailer toward the tow vehicle. This automatically synchronizes the trailer brakes with the tow vehicle axle brakes. When the trailer pushes against the tow vehicle, the actuator telescopes together and applies the force to the master cylinder, supplying hydraulic pressure to the brakes. The built in dampening shock absorber retards the telescoping shock against the hitch ball by depending on the brake fluid in the master cylinder. This surge actuator is for use with drum brakes only and will fit tongues 3" wide. Comes completely assembled and ready to bolt into place.Features:Used for hydraulic drum brakesDrop-n-Go auto-latch couplerAluminum master cylinderGrease fittings on rollersBolt-on installationBrake fluid sold separatelySpecifications:Capacity: 7,500 lbs.Maximum Tongue Load: 750 lbs.Accepted tongue sizes: 3"x3", 3"x4", 3"x5"Accepts 2" trailer hitch balls only About UsWholesale Marine is an on line boating store founded to provide customers an easy way find top-quality products at the lowest prices. With associates who possess decades of combined boating experience, Wholesale Marine can truly provide expert customer service. Wholesale Marine ships products on the same day and does not charge sales tax on 49 of 50 states. Please let us know if you have any suggestions on how we can serve you better. Shipping MethodWholesale Marine currently ships all merchandise UPS or truck freight. All orders with in-stock items placed by 2:00 PM EST Monday - Friday are shipped that same day. Orders placed after 2:00 PM on Friday and orders place on Saturday and Sunday will ship on the following Monday. Orders that qualifying for free shipping may be shipped any method and carrier chosen by Wholesale Marine. Free shipping offers are only valid within the continental U.S. There are certain items that we cannot ship outside of the Continental United States. Items that cannot be shipped outside of the Continental United States include all name brand watersports products and hazardous materials, such as but not limited to paint, oil, resins and adhesives. *Canadian Customers: Please be aware that any brokerage, duty, or customs fees are out of our control. Combining OrdersWe will absolutely combine orders for a reduced shipping rate. There are just four simple steps to follow: Click to commit to the items which you are interested in. Before you pay, send us an invoice request. We will then send you a revised copy of the invoice with the combined shipping rate. Pay ReturnsWholesale Marine will gladly refund or exchange almost any merchandise within 30 days from original purchase date. To return just send merchandise prepaid, in its original unused condition. Please include a copy of original Wholesale Marine invoice. We will then refund the merchandise amount by the original payment method. Shipping costs are not refundable. No returns for special order items, electronics, cut lengths of material or hazardous materials, such as but not limited to paint, oil, resins and adhesives. Please ship all Returns to: Wholesale Marine 147 Circle Freeway Drive Cincinnati, OH 45246 Connect with Us Find us on: