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Expert Answers about King Pin Locks


  • Availability of Keyed-Alike 5th Wheel King Pin Locks
  • We can offer you several choices in a 5th wheel king pin lock that can be ordered in multiples that are all keyed alike but Master Lock King Pin Lock # ML387 is not among them. We offer our aluminum King Pin Lock # e98896. It can be ordered in any quantity you need with all locks keyed to the same key. Just select the keyed alike option from the drop-down menu tool and then select your quantity. There is a modest charge for this service.
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  • Availability of Keyed Alike Fifth Wheel King Pin Locks
  • The # e98896 that we offer is available in keyed alike multiples. I have linked you to a product demonstration video that you might find helpful.
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  • Is There a Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler to Replace a 770 Pin Box?
  • I have a solution for you, but the Reese Goosebox # RP85FR will not fit on your Fabex 770 pin box, and there is not an available Reese Goosebox to use as a replacement for this pin box model. Instead, I recommend using the Convert-A-Ball Cushioned 5th- Wheel to Gooseneck Adapter # CAB-C5G. The Convert-A-Ball is a great solution for less common pin box models to allow you to use your gooseneck hitch to tow your 5th wheel trailer. The interior polyurethane cushions absorb shock to help provide...
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  • What is a Sidewinder Wedge Kit for a 5th Wheel Hitch
  • A Sidewinder wedge kit for 5th wheel hitch is a wedge that installs on the underside of the Sidewinder pin box and helps to lock out the king pin in the funnel of the 5th wheel hitch head. This helps the Sidewinder to only pivot at the turret instead of pivoting both at the turret and at the king pin (which would be extremely dangerous). The Sidewinders come with a universal wedge like part # 201100 but depending on what kind of 5th wheel hitch you have it may be better to use a custom...
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  • Is there a Sidewinder Available to Replace the Current 5th Wheel King Pin on My Oakland Bigfoot
  • Since Sidewinder couplers are custom designed to replace the standard king pins on trailers, we'll need the part number of the pin box currently on the trailer to determine if there is a Sidewinder that will work for your 1992 Oakland Bigfoot. Most king pins will have the pinbox number listed on a sticker or it will be stamped on the king pin itself. If it's not there or has worn off, you will need to call the trailer manufacturer with your VIN or serial number to have them provide the...
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  • Cushioned Pin Box Replacement for Lippert 1621 on 2017 Grand Design Reflection 303RLS
  • The available replacement 5th wheel king pins that you can use in place of your Lippert 1621 are shown on the linked page. All of these are engineered to reduce jarring and bounce and all are direct bolt-on installations. All come fully-assembled. The best ride quality will come from the Trailair Flex Air models, the 18K # LC328492 and the 21K model # LC369535. Both use a 3-part combination of air cushion, gas strut and rubberized pivoting head. These features reduce road shock, bounce...
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  • Fifth Wheel Adapter Options Other Than King Pin to Gooseneck Ball
  • We don't have a 2 inch receiver application, but we do have the B&W Turnoverball King Pin Adapter for Trailers with Inverted 5th-Wheel Hitches # BWGNXA4000 which is a 2-1/2 inch outer measurement on the solid square. We also have the Fifth Wheel Trailer King Pin # 337KP20050 with no connection on the backside if you need to make a custom adapter If you are looking for a gooseneck to king pin connection, we have the Gooseneck to 5th wheel adapter inner tube # KPG5-Q25-IP which has a 4...
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  • Replacement Needed for Tri-Glide Pin Box
  • The Tri-Glide King Pin by Trailair is discontinued, but they did come out with a replacement for it. We offer two versions, one version is the Trailair Flex Air 5th Wheel Pin Box # LC328484. It is rated for 18,000 lbs and is designed to replace only the Lippert 0719 OEM pin boxes. The other version is Trailair Flex Air 5th Wheel Pin Box # LC328492. This pin box is also rated for 18,000 lbs and is designed to replace only the Lippert 1621 OEM pin boxes. These will work on your trailer only...
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  • Do 5th Wheel Trailer Hitches have Safety Devices
  • It depends on what you mean by safety devices as well as the hitch you are using. Some hitches have an indicator in the back that will show you if the hitch is locked around the trailer king pin. Others will have a pin that keeps the handle from pulling out. Hitch # C16140 has both features and the most secure dual serrated jaw you can get. 5th Wheel hitches and trailers do not require safety chains. The rule for chains is if the trailer couples to a ball of some sort like a bumper pull...
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  • Availability of a Friction Plate for a Reese Sidewinder 5th Wheel King Pin
  • A lube plate such as the Reese # RP83004 isn't necessary for a Reese Sidewinder because it won't be turning. Our representative at Reese stated you will only need to grease the king pin and wedge and you will be good to go. Since they are not necessary, lube plates were not designed to work with Sidewinders.
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  • Reese Sidewinder for 2011 Keystone Cougar 325 SRX w/ 1621 Pin Box
  • I contacted Lippert, with the information from the tag you provided they informed me you currently have a 1621 pin box. The Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs. # RP34FR, would be the the needed replacement. Unless you want the 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 16,000 lbs., # RP61422. Please note the attached product review and installation videos. Happy Camping.
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  • Replacement of King Pin Box
  • The Lippert 1716 5th Wheel Pin Box, # LC1324791 is is 12.5" in width. The Lippert 1621, # LC1387883 and the Lippert 1621HD 5th Wheel Pin Box, # LC1191151 are both 12" in width. The easiest way to replace your pin box is to find the pin box's manufacturer name along with its specific pin box number. These are both typically located on a sticker on the pin box or on the king pin itself. This pin box number will usually be 3-4 numbers long and can have letters attached to it. Some very common...
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  • 5th Wheel King Pin to Goose Neck Ball Adapters for Lippert Rhino Pin Box
  • I have a few options for your consideration. We do not have a replacement pin box for the rhino currently. First is the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5G. This will bolt to the king pin on your 5th wheel trailer and connect to the gooseneck ball in your truck. This kit is recommended for 8' bed trucks. Second is the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter w/ Offset # CAB-C5GX1216. This is the same as the above but features an offset design...
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  • King Pin Adapter to Allow Goose Neck Hitch to Pull 5th Wheel Trailer
  • There are four basic types of adapters that can allow a goose neck hitch to pull a 5th wheel trailer. The best option for you will depend on how often you will tow the trailer in this manner. Some of these devices will place additional stress on the trailer frame and hitch but may be okay for one-time, occasional or short-distance travel. You will want to consult the manufacturer of your trailer on this point. Others offer a safer permanent solution for frequent use, such as the type that...
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  • California Required Safety Chains for Andersen Ultimate Hitch
  • We have what you need for your Andersen Ultimate Connection 5th Wheel Trailer Hitch System, # AM3200. That is the Andersen Ultimate Safety Chain Kit with Clevis Hooks, # RM3230. This should allow you to be compliant with California Towing Code #29003. NOTE: The two eyelet bolts replace the king pin coupler bolts that ship with the Ultimate 5th Wheel Connection.
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  • Underbed 5th Wheel Rail Mounting Systems for a 2017 Ford F-350 4WD With an 8 Foot Bed
  • Yes, we do have some underbed mounting systems for your 2017 Ford F-350, but unfortunately there are no Reese 5th wheel hitch options rated for 26K. The only Reese hitch that fit with their Under-Bed Rail and Installation Kit # RP30126 was the Reese M5 20K # RP30921. Neither of which are a fit for your F-350. If you were wanting to stick with the below bed rails we have an option from B&W which is their Underbed Gooseneck Hitch # BWGNRK1116-5W along with the Companion # BWRVK3500-5W which...
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  • Shroud for Lippert 5th Wheel Pin Box 1621 and 1116
  • We do offer king pin shrouds for two of the most popular 5th wheel pin boxes. You can see all of these on the linked page. For example, if you have a Lippert 1621 pin box we have a white cover available in white with part # LC301458.
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  • 5th Wheel Hitch Adapter for Use with Bulldog Round Shank Gooseneck Hitch in 2015 Silverado 2500
  • Curt makes several versions of their X5 5th wheel base rail adapter, such as # C16210 that fits their Double Lock gooseneck and # 16310 that fits the B&W Turnoverball gooseneck but there is not a version confirmed to fit the Bulldog round-shank gooseneck setup. I confirmed with my contact at Curt. However, you do not even need base rails to use a 5th wheel hitch. Since you have the Bulldog gooseneck you can directly install the Draw-Tite Hi-Rise Gooseneck-to-5th-Wheel Trailer Hitch Adapter...
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  • Available Replacement Pin Box for RBW 7028 Pin Box
  • The only available option we currently have to replace an RBW 7028 pin box is the Trailair Air Ride 5th Wheel King Pin - Fabex 750, 765 and 770, RBW 7028 - 21,000 lbs # UF35-946212. This is an upgraded air ride style pin box that will help provide some added cushion against road shock and help reduce chucking, so it's a nice choice to replace your old RBW 7028.
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  • How to Tow 5th Wheel Trailer with Inverted Hitch with Truck That Has Gooseneck Hitch
  • I am sorry but we do not have a round shank gooseneck adapter to allow you to tow an inverted hitch 5th wheel trailer. We offer only the B&W Turnoverball King Pin Adapter # BWGNXA4000 that you mentioned and the # BWGNXA4025 which allows use of an inverted gooseneck hitch; both of these do have square shanks. But I do have another type of solution for you: a replacement 5th wheel pin box called a Goosebox. A Reese Goosebox is just like a standard 5th wheel king pin except it is designed...
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