-1000x1000.webp "Custom Fit Trailer Hitch Wiring Harness (Plug & Play) Installation Hardware Installation Instructions 84020 118278 Reese Trailer Hitch Wiring 16-23 Mazda CX-9 Class 3 2\" Tow Receiver Reese Tekonsha 16 17 18 19 20 21 22 23 2016 2017 2018 2019 202")
-150x150.webp "Custom Fit Trailer Hitch Wiring Harness (Plug & Play) Installation Hardware Installation Instructions 84020 118278 Reese Trailer Hitch Wiring 16-23 Mazda CX-9 Class 3 2\" Tow Receiver Reese Tekonsha 16 17 18 19 20 21 22 23 2016 2017 2018 2019 202")
-550x550.webp "Custom Fit Trailer Hitch Wiring Harness (Plug & Play) Installation Hardware Installation Instructions 84020 118278 Reese Trailer Hitch Wiring 16-23 Mazda CX-9 Class 3 2\" Tow Receiver Reese Tekonsha 16 17 18 19 20 21 22 23 2016 2017 2018 2019 202")
Trailer Hitch w/ Wiring For 16‑23 Mazda CX‑9 Class 3 2" Tow Receiver Reese Tekonsha
Model: 84020 118278
Includes Everything Pictured:
Custom Fit Trailer Hitch
Wiring Harness (Plug & Play)
Installation Hardware
Installation Instructions
Fits The Following Vehicles:
2016 - 2023 Mazda, CX-9, All Styles
Trailer Hitch Specs:
| Part Number | 84020 |
| Brand | Reese |
| Finish | Black Powdercoat |
| Class | 3 |
| Receiver size opening | 2" |
| Max gross trailer weight | 4,500 lbs |
| Max GTW w/ weight distribution | 4,500 lbs |
| Max Tongue Weight | 675/675 lbs |
| Warranty | Lifetime |
| Installation Instructions |  |
Wiring Kit Specs:
| Part Number | 118278 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |
|
Thank you for choosing Reese the most powerful name in towing industry bar none. Manufactured by the same people that brought you Draw-Tite and Hidden Hitch all of our products come with standard lifetime warranty and support. Our custom hitches mount easily on your Car Truck Van SUV and RV. Most applications simply bolt on without any need for drilling or modifying your bumper. Please review installation instructions manual pdf file above for exact step by step instructions. Chose Class 1 or 2 for light duty towing, chose Class 3 4 and 5 for heavy duty towing. Pair your hitch with accessories like a ball mount that is available in several drop and rise configurations. Choose a 2 inch ball to haul most standard trailers. Choose a 1-7/8" ball to tow small and u tility trailers. Our hitches come with generous tongue weight ratings for use with cargo racks and other accessories. All parts in our store are sold at a discount. If you have any questions please do not hesitate to give us a call at 702-374-8999
For our electrical we rely on Tekonsha. Our Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. Our connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our Wiring Kits offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years: 16 17 18 19 20 21 22 23 2016 2017 2018 2019 2020 2021 2022 2023
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Product Details
- Brand: Reese
- Model: 84020 118278
- Includes: Class 3 Trailer Tow Hitch, Tow Custom Harness
Compatibility Chart
Description
Includes Everything Pictured:
Custom Fit Trailer Hitch
Wiring Harness (Plug & Play)
Installation Hardware
Installation Instructions
Fits The Following Vehicles:
2016 - 2023 Mazda, CX-9, All Styles
Trailer Hitch Specs:
| Part Number | 84020 |
| Brand | Reese |
| Finish | Black Powdercoat |
| Class | 3 |
| Receiver size opening | 2" |
| Max gross trailer weight | 4,500 lbs |
| Max GTW w/ weight distribution | 4,500 lbs |
| Max Tongue Weight | 675/675 lbs |
| Warranty | Lifetime |
| Installation Instructions | |
Wiring Kit Specs:
| Part Number | 118278 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |
|
Thank you for choosing Reese the most powerful name in towing industry bar none. Manufactured by the same people that brought you Draw-Tite and Hidden Hitch all of our products come with standard lifetime warranty and support. Our custom hitches mount easily on your Car Truck Van SUV and RV. Most applications simply bolt on without any need for drilling or modifying your bumper. Please review installation instructions manual pdf file above for exact step by step instructions. Chose Class 1 or 2 for light duty towing, chose Class 3 4 and 5 for heavy duty towing. Pair your hitch with accessories like a ball mount that is available in several drop and rise configurations. Choose a 2 inch ball to haul most standard trailers. Choose a 1-7/8" ball to tow small and u tility trailers. Our hitches come with generous tongue weight ratings for use with cargo racks and other accessories. All parts in our store are sold at a discount. If you have any questions please do not hesitate to give us a call at 702-374-8999
For our electrical we rely on Tekonsha. Our Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. Our connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our Wiring Kits offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years: 16 17 18 19 20 21 22 23 2016 2017 2018 2019 2020 2021 2022 2023
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Trailer Hitch w/ Wiring For 16-23 Mazda CX-9 Class 3 2" Tow Receiver Reese Tekonsha Install Notes
Installation Instructions for Mazda CX-9 (2016-Current)
Part Numbers:
- 76020
- 84020
- CQT76020
Tools Required:
- Ratchet
- Torque Wrench
- Safety Glasses
- Sockets: 7/8”, 10mm
- Flat Head Screwdriver
- Exhaust Removal Pliers
- 6” Socket Extension
Wiring Access Location:
- N/A
Step-by-Step Instructions:
-
Remove Lower Trim Panel:
- Remove plastic expanding fasteners and detach the lower trim panel.
- Return the panel to the vehicle owner.
-
Lower the Exhaust:
- Use exhaust removal pliers to pry off four (4) rubber exhaust hangers.
- Spray with soapy water to ease removal and ensure the exhaust system is properly supported during the process.
-
Fishwire Forward Bolts:
- Using the fishwire method, insert carriage bolts and spacer blocks through the access hole into the forward attachment holes.
- Leave the pull wires attached.
-
Fishwire Rearward Bolts:
- Using the reverse fishwire method, insert the carriage bolts and blocks into the rearward attachment holes.
- Leave the pull wires attached.
-
Install Hitch:
- Raise the hitch into position and guide the fishwire ends through the attachment holes.
- Remove the pull wires and secure the hitch using conical washers (teeth side toward hitch) and 1/2" hex nuts.
- Ensure no wires or components are pinched between the hitch and the vehicle frame.
-
Tighten Fasteners:
- Use a torque wrench to tighten all hitch fasteners to 110 lb-ft (149 N·m).
-
Reinstall Exhaust Hangers:
- Raise the exhaust back into position and reinstall all exhaust hangers securely.
Hardware List:
- (4) 1/2”-13 x 1.75” Grade 8 Carriage Bolts
- (4) 1/2” Conical Washers
- (4) 1/4” x 1” x 3” Spacer Blocks
- (4) 1/2”-13 Grade 8 Hex Nuts
- (4) 1/2” Pull Wires
Safety Notes:
- Frequently check the hitch to ensure all fasteners and the ball are properly tightened.
- If the hitch is removed, plug all holes in the trunk pan or other body panels to prevent water and exhaust fumes from entering.
- Replace any damaged hitch or ball immediately.
- Always follow safety precautions when working beneath the vehicle, and wear eye protection.
- Do not cut access or attachment holes with a torch.
Specifications:
- Hitch Type and Weight Ratings:
- Weight Carrying (Ball Mount): Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
- Weight Distributing: Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
- Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.
Additional Notes:
- Installation time is approximately 30 minutes for a professional installer.
- If you are not comfortable performing the installation, contact a professional installer.
Installation Instructions for Vehicle (2016-Current)
Part Numbers:
- 76020
- 84020
- CQT76020
Tools Required:
- Ratchet
- Torque Wrench
- Safety Glasses
- Sockets: 7/8”, 10mm
- Flat Head Screwdriver
- Exhaust Removal Pliers
- 6” Socket Extension
Wiring Access Location:
- N/A
Step-by-Step Instructions:
-
Remove Lower Trim Panel:
- Remove plastic expanding fasteners and detach the lower trim panel.
- Return the panel to the vehicle owner.
-
Lower the Exhaust:
- Use exhaust removal pliers to pry off four (4) rubber exhaust hangers.
- Spray with soapy water to ease removal and ensure the exhaust system is properly supported during the process.
-
Fishwire Forward Bolts:
- Using the fishwire method, insert carriage bolts and spacer blocks through the access hole into the forward attachment holes.
- Leave the pull wires attached.
-
Fishwire Rearward Bolts:
- Using the reverse fishwire method, insert the carriage bolts and blocks into the rearward attachment holes.
- Leave the pull wires attached.
-
Install Hitch:
- Raise the hitch into position and guide the fishwire ends through the attachment holes.
- Remove the pull wires and secure the hitch using conical washers (teeth side toward hitch) and 1/2" hex nuts.
- Ensure no wires or components are pinched between the hitch and the vehicle frame.
-
Tighten Fasteners:
- Use a torque wrench to tighten all hitch fasteners to 110 lb-ft (149 N·m).
-
Reinstall Exhaust Hangers:
- Raise the exhaust back into position and reinstall all exhaust hangers securely.
Hardware List:
- (4) 1/2”-13 x 1.75” Grade 8 Carriage Bolts
- (4) 1/2” Conical Washers
- (4) 1/4” x 1” x 3” Spacer Blocks
- (4) 1/2”-13 Grade 8 Hex Nuts
- (4) 1/2” Pull Wires
Safety Notes:
- Frequently check the hitch to ensure all fasteners and the ball are properly tightened.
- If the hitch is removed, plug all holes in the trunk pan or other body panels to prevent water and exhaust fumes from entering.
- Replace any damaged hitch or ball immediately.
- Always follow safety precautions when working beneath the vehicle, and wear eye protection.
- Do not cut access or attachment holes with a torch.
Specifications:
- Hitch Type and Weight Ratings:
- Weight Carrying (Ball Mount): Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
- Weight Distributing: Max Trailer Weight 4,500 lbs (2,043 kg), Max Tongue Weight 675 lbs (306 kg).
- Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.
Additional Notes:
- Installation time is approximately 30 minutes for a professional installer.
- If you are not comfortable performing the installation, contact a professional installer.
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For complete warranty instructions, please download the full installation PDF.
Installation Instructions for T-One® T-Connector for Mazda CX-9
Part Numbers:
- 118278
Tools Required:
- Trim Panel Puller
- Test Probe
- 10mm Socket or Wrench
Step-by-Step Instructions:
-
Prepare the Vehicle:
- Open the rear tailgate and remove cargo nets and the cargo floor hatch to access the spare tire area.
- Temporarily remove all floor coverings to expose the spare tire compartment.
-
Remove the Threshold Plate:
- Using a trim panel tool, carefully pry the threshold plate away from the vehicle, being cautious not to damage any clips.
-
Remove Interior Trim Panels:
- Partially remove the lower interior trim panels on the passenger side of the vehicle only.
- Remove several trim panel fasteners to allow panel removal.
-
Connect the T-One® Harness:
- Locate the vehicle’s trailer tow plug behind the trim panel removed in Step 3.
- Insert the 8-pin tow plug adapter and lock it into place. Ensure the connectors are fully inserted with locking tabs in place.
-
Ground the White Wire:
- Locate the existing ground stud near the tow plug connector.
- Loosen the nut, place the T-One® Connector’s white wire with the ring terminal on the stud, and retighten the nut.
- Ensure all existing ground connections are still attached.
-
Mount the Black Box Module:
- Locate a flat surface in an out-of-the-way place and mount the T-One® Connector’s black box module to prevent damage or rattling.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the T-One® Connector harness, avoiding areas that may pinch, cut, or melt the wire.
-
Reassemble the Vehicle:
- Reinstall the plastic trim panels, threshold, storage covers, floor covering, and any other items removed during installation, ensuring no wires are pinched or damaged.
-
Test the Installation:
- Verify all connections are complete and test the installation with a test light or trailer.
- For the initial test, reset the vehicle’s electrical system by temporarily removing the key from the ignition.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow safety precautions during installation.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and the instruction sheet for additional details.
- Store these instructions for future reference.
Installation Instructions for T-One® T-Connector
Part Numbers:
- 118278
Tools Required:
- Trim Panel Puller
- Test Probe
- 10mm Socket or Wrench
Step-by-Step Instructions:
-
Prepare the Vehicle:
- Open the rear tailgate and remove cargo nets and the cargo floor hatch to access the spare tire area.
- Temporarily remove all floor coverings to expose the spare tire compartment.
-
Remove the Threshold Plate:
- Using a trim panel tool, carefully pry the threshold plate away from the vehicle, being cautious not to damage any clips.
-
Remove Interior Trim Panels:
- Partially remove the lower interior trim panels on the passenger side of the vehicle only.
- Remove several trim panel fasteners to allow panel removal.
-
Connect the T-One® Harness:
- Locate the vehicle’s trailer tow plug behind the trim panel removed in Step 3.
- Insert the 8-pin tow plug adapter and lock it into place. Ensure the connectors are fully inserted with locking tabs in place.
-
Ground the White Wire:
- Locate the existing ground stud near the tow plug connector.
- Loosen the nut, place the T-One® Connector’s white wire with the ring terminal on the stud, and retighten the nut.
- Ensure all existing ground connections are still attached.
-
Mount the Black Box Module:
- Locate a flat surface in an out-of-the-way place and mount the T-One® Connector’s black box module to prevent damage or rattling.
-
Secure the Wiring Harness:
- Use the provided cable ties to secure the T-One® Connector harness, avoiding areas that may pinch, cut, or melt the wire.
-
Reassemble the Vehicle:
- Reinstall the plastic trim panels, threshold, storage covers, floor covering, and any other items removed during installation, ensuring no wires are pinched or damaged.
-
Test the Installation:
- Verify all connections are complete and test the installation with a test light or trailer.
- For the initial test, reset the vehicle’s electrical system by temporarily removing the key from the ignition.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow safety precautions during installation.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty Information:
For warranty duration and coverage details, please download the full installation PDF.
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