KIT# 524448-4
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
BASEPLATE KIT
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INSTALLATION INSTRUCTIONS
12/5/18
KS
R O A D M A S T E R, I N C.
ITEM QTY NAME PART #
1...........2...........1/2” x 4” BOLT ..........................................................................350105-00
2...........2...........1/2” PLATE WASHER ..............................................................A-003086
3...........2...........1/2” LOCK WASHER ...............................................................350309-00
4...........2...........1/2” NUT ...................................................................................350258-00
5...........2...........1/2” x 3.5” x 5.5” U-BOLT .........................................................357021-50
6...........4...........1/2” TWO WAY LOCK NUT ......................................................350258-20
7...........2...........#10 X 3/4” SELF DRILLING SCREW ......................................350247-35
8...........1...........WIRE PLUG PLATE .................................................................A-003801
9...........1...........DRIVER SIDE SHIM PLATE ....................................................B-002900
10.........1...........PASSENGER SIDE SHIM PLATE ...........................................B-002901
11 .........1...........MAIN RECEIVER BRACE .......................................................C-002985
12.........1...........DRIVER SIDE ARM .................................................................C-002986
13.........1...........PASSENGER SIDE ARE .........................................................C-002987
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
12/5/18
KS
his is one of our Ecrossbar-style base-
Fig.A
plates, which allows the visible front portion
T
to be easily removed from the front of the
vehicle (Fig.A and Fig.B). The bracket consists of
a main receiver brace, two removable front braces, and a hardware pack.
The main receiver brace mounts to the bumper core and subframe. The removable front
braces install in the main receiver brace.
Before starting the installation, lay out the kit
Fig.B
components in order, as they will be used. This
will give you a visual idea of how the components
work, and will also confirm that everything is present and accounted for.
IMPORTANT: All baseplates must be assembled with all the bolts left loose for final adjustment and positioning (before
tightening) unless otherwise instructed. All bolts must be torqued for proper strength. If more than one bolt is used per
fastening point, the diagram may only show one.
• Use flat washers over all slotted holes • Use lock washers on all fasteners
ROADMASTER Limited Warranty, including One-Year Conditional Warranty Text and Product Registration Card, in Carton.
• Roadmaster manufactures many styles of baseplates. If your base-
Failure to follow these instructions
WARNING
• Installation of most baseplates requires moderate mechanical aptitude and skills. We strongly recommend professional installation by
an experienced installer.
• The installer must read the instructions and use all bolts and parts
supplied. Failure to do so could result in loss of the towed vehicle.
• Use Loctite® Red on all bolts used for mounting this bracket.
• Every 3,000 miles, the owner must inspect the fasteners for proper
torque, according to the bolt torque requirements chart on the last
page of these instructions. The owner must also inspect all mount-
ing points for cracks or other signs of fatigue every 3,000 miles.
Failure to do so could result in loss of the towed vehicle.
• The owner must check the vehicle manufacturer's instructions for
the proper procedure(s) to prepare the vehicle for towing. Some
vehicles must be equipped with a transmission lube pump, an axle
disconnect, driveline disconnect or free-wheeling hubs before they can
be towed. Failure to properly equip the vehicle will cause severe
damage to the transmission.
• If running changes were made by the vehicle manufacturer after this
kit was designed, some bolts or other fasteners in the hardware pack
may no longer be the correct size. It is the installer’s responsibility
to verify that the baseplate is securely fastened to the vehicle and fitted with the correct hardware to account for these changes. Failure to
securely fasten the baseplate could result in loss of the towed vehicle.
• If the towed vehicle has been in an accident, it must be properly repaired before attaching the baseplate. Do not install the baseplate if
any structural frame damage is found. Failure to repair the damage
could result in the loss of the towed vehicle.
can result in property damage,
personal injury or even death.
plate has removable arms, they must be removed before driving
the vehicle, unless the arms can be pinned or padlocked in place.
If not secured, the arms could vibrate out, resulting in non-warranty
damage or personal injury.
• Some motorhome chassis have such a tight turning radius that you can
damage your motorhome, towed vehicle, tow bar or baseplate while turning sharply. Before getting on the road, test your turning radius in
an empty parking lot. Turning too sharply could result in non-warranty
damage to towing system, motorhome and/or towed vehicle.
• Do not back up with the towed vehicle attached or non-warranty
damage will occur to your towing system, motorhome and/or towed
vehicle.
• The safety cables must connect the towing vehicle to the towed
vehicle frame to frame, with the cables crossed, with enough slack
for sharp turns. Refer to the cable instructions for proper routing.
Failure to leave enough slack in the safety cables, or failure to connect
the safety cables frame to frame, will result in the loss of the towed
vehicle.
• This kit is designed for use with ROADMASTER tow bars and ROADMASTER adaptors only. Using this kit with other brands, without
an approved ROADMASTER adaptor, may result in non-warranty
damage or injury.
• Do not use this document for custom fabrication, as it may not show
all parts or structural components. Custom fabrication, or any attempt
to copy this baseplate design, could result in loss of the towed vehicle.
• Upon final installation, the installer must inspect the baseplate to
ensure adequate clearance, particularly around hoses, air conditioner lines, radiators, etc., or non-warranty damage to the towed
vehicle will result.
• This baseplate is only warranteed for the original installation. Installing a used baseplate on another vehicle is not recommended and
will void the warranty.
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
Fig.C Fig.D
1. Important: please use all supplied bolts and parts and read all instructions carefully before beginning this
installation. The majority of questions you may have can be answered within the text, and proper installation
will ensure safe and secure travel. Now, begin the installation by removing 12 plastic fasteners attaching the top of the
radiator cover to the core support (Fig.C).
2. Remove six 10mm (head) bolts attaching the upper fascia to the core support (Fig.D).
12/5/18
KS
Fig.E
3. On each side, remove six 5.5mm screws attaching the fender liner to the fascia (Fig.E).
4. On each side, remove seven 5.5mm screws, two T30 screws and one plastic fastener attaching the lower splash
shield to the fascia and the core support (Fig.F — driver's side).
5. On each side, pull back the fender liner and remove three 8mm (head) bolts attaching the fascia to the fender (Fig.G)
and then disconnect the electrical connectors attaching the fascia to the vehicle (Fig.H).
Fig.G
Fig.F
Fig.H
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
12/5/18
KS
Fig.I
6. On each side, pull back on the top of the fascia to release the clip in the bottom lower corner of the headlight and then
pull down on the fascia, perpendicular to the seam, sliding out the two aligning pins (Fig.I).
7. For models without a front camera sprayer: proceed to the next step. For models equipped with a front camera
sprayer: disconnect the sprayer hose from the sprayer fitting (Fig.J) and then release all of the clips attaching the sprayer
hose to the fascia (Fig.K). Secure the hose above the reservoir for now. Note: it may be necessary to use either a second
person to hold the fascia during this process or prop the fascia after removal.
Fig.K
front camera
sprayer fitting
Fig.J
Fig.L
8. Release the wiring loom from the shock absorption
pad by releasing all the fasteners attaching it to the louver
housing. It will not be replaced. Note: retain the shock
absorption pad for replacement in case the bracket is ever
removed from the vehicle.
9. Trim the louver housing to allow clearance for the main
receiver brace (Fig.L — passenger side) (Fig.M — driver's
side).
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
Fig.M
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
12/5/18
KS
Fig.RFig.N
10. On each side, remove two 10mm (head) bolts attaching the radiator support to the frame (Fig.N — driver's side). Carefully let it hang down for now, or clamp it on a couple of inches back from where it was originally.
11. On each side, push the radiator support out of the way and drill a ½" hole up through the pre-existing hole in the bottom and the top of the subframe (Fig.O).
Fig.RFig.P
Fig.O
Fig.RFig.Q
12. On each side, place the supplied shim plate on top of the bumper core so that the bend is facing down and so it fits
into the bumper profile and place the U bolt over the bumper core and through the shim plate (Fig.P).
13. On each side, place the main receiver brace under
the bumper core and over the U bolts and then thread on
the ½" two-way locknuts (Fig.Q). Note: the two-way locknuts have a dimple on the side and are self-locking. Note:
ensure that wiring looms are not being pinched between
the bracket and frame.
14. On each side, place a ½" flat washer over a ½" x
4" bolt and bolt down through the subframe and main
receiver brace. Finish with a ½" lock washer and nut
(Fig.R). Note: due to manufacturing variances, some
applications may require bolting up through the main
receiver brace and subframe instead.
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
Fig.RFig.R
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
12/5/18
KS
drill ¼" hole
and remount
wiring loom
wiring loom
stock mount
15. Remove the fasteners attaching the wiring loom to the back of the fascia so the loom has enough slack to run it along
the top of the grille opening. On each side, drill one ¼" hole through the lip of the fascia in the upper corner of the grill
opening, ensuring that the hole can't be seen from the front of the fascia (Fig.S). Then, install the fasteners of the
loom into the drilled holes.
16. Cut out the enclosed template from the last page of these instructions and place it over the fascia (Fig.T). Drill a pilot
hole in the center of the circle, and then trim the fascia to match the template hole (Fig.T — inset). Trim clearance for the
safety cable tabs, as well as the plug mount, using the yellow lines in Figure U as a reference for trimming.
Fig.RFig.S
Fig.RFig.T
Fig.U
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
KIT# 524448-4
BASEPLATE KIT
12/5/18
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
Fig.RFig.V Fig.RFig.W
pin flush
with barrel
17. Tighten all bolts to the bolt torque requirements found at the end of these instructions. Note: use Loctite® Red on all
nuts and bolts.
18. Reinstall the fascia, reversing steps 1 through 6.
19. Note: the following four images are for illustration purposes only, as your specific application may be slightly
different.
The spring-loaded pin on the removable arm snaps into a notch on the receiver, locking the removable arm into its
final towing position. Before inserting each arm into the receiver, verify that the spring is working by ensuring that the
spring-loaded pin moves easily back and forth within the barrel when pulled and that it can be pulled flush with the face of
the barrel (Fig.V and Fig.W).
KS
Fig.RFig.X
pin locked
Fig.Y
into notch
pin depressed
against receiver
20. On each side, insert the removable front bracket arm into the front receiver 90 degrees from its final towing position,
depressing the spring-loaded pin against the receiver (Fig.X). Now, twist back 90 degrees until the spring-loaded pin
snaps into place in the notch on the receiver, locking the arm into place in its final towing position (Fig.Y).
Please note: it is the owner's responsibility to ensure the locking of the pins before towing. Otherwise, failure
of the towing system will result.
21. Install the tow bar to the mounting bracket according to the manufacturer's instructions.
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
KIT# 524448-4
BASEPLATE KIT
INSTALLATION INSTRUCTIONS
ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax 360-735-9300 www.roadmasterinc.com
12/5/18
KS
Fig.RFig.Z
Fig.RFig.AA
safety
cable tab
IMPORTANT!
Safety cables are required by law. When towing, connect safety cables to the safety cable tabs illustrated
on the first page and in Figure Z. Make certain there is adequate slack in the cables to allow a full turning radius;
otherwise, damage will result. If necessary, longer cables or cable extensions are available.
Three options for attaching the wiring plug to the main receiver brace
For six-wire plugs: use the two supplied ¾” self-tapping screws to attach the electrical plug directly to the rods on the
front of the main receiver brace.
For four-wire round plugs: attach to the plug mounting plate and then use the two supplied ¾” self-tapping screws to
attach the mounting plate to the rods on the front of the main receiver brace.
For four-wire flat plugs: place the plug through the mounting plug plate, and then secure it using the supplied zip tie on
the front of the plug (Fig.AA). Use the two supplied ¾” self-tapping screws to attach the mounting plate to the rods on the
front of the main receiver brace.
Note: The torque values represented below are intended as general guidelines. Torque requirements for specific applications may vary. Roadmaster does not warrant
this information to be accurate for all applications and disclaims all liability for any claims or damages which may result from its use.
STANDARD BOLTS
Thread Size Grade Torque
5/16..................... 5 ........................... 13 ft./lb.
3/8....................... 5 ........................... 23 ft./lb.
7/16..................... 5 ........................... 37 ft./lb.
1/2....................... 5 ........................... 56 ft./lb.
5/8....................... 5 ......................... 150 ft./lb.
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
All illustrations and specifications contained herein are based on the latest information available at the time of publication approval.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
ROADMASTER, INC. reserves the right to make changes at any time without notice in material, specification and models or to discontinue models.
BOLT TORQUE REQUIREMENTS
METRIC BOLTS
Thread Size Grade Plated / Unplated
8mm-1.0 ............8.8 ............20 ft./lb. 18 ft./lb.
8mm-1.25 .........8.8 ............19 ft./lb. 18 ft./lb.
10mm-1.25 ........8.8 ........... 38 ft./lb. 36 ft./lb.
10mm-1.5 ..........8.8 ........... 37 ft./lb. 35 ft./lb.
METRIC BOLTS
Thread Size Grade Plated / Unplated
12mm-1.25 ........8.8 ............70 ft./lb. 65 ft./lb.
12mm-1.5 ..........8.8 ............66 ft./lb. 61 ft./lb.
12mm-1.75 ........8.8 ........... 65 ft./lb. 60 ft./lb.
14mm-2.0 ..........8.8 ......... 104 ft./lb. 97 ft./lb.
KIT# 524448-4
12/5/18
KS
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