JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

Traxxas Chassis Braces, Lower (Black) (Traxxas 3921 | TRA3921)

Model: Traxxas 3921
Dist. #: TRA3921   SKU: TRA3921

Be the first to review this product. (Write Review)

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
Available Now!

Price:  $8.49

This item will earn you 8 reward point(s).
8 points = $0.16 off your next order. Learn More

Updated on Sep 29, 2025 11:47:43 AM

Chassis Brace Lower E-Maxx...
This is the Lower Chassis Brace for the Traxxas E-Maxx.

FEATURES:
Nylon construction, black in color
Replaces used or damaged lower chassis braces

CONSISTS OF:
Right and left lower chassis braces

NEEDS:
Setup on the E-Maxx

SPECIFICATIONS:
Length: 9.44" (240mm)
Width: 1.57" (40mm)
Density: .43" (11mm)

This item praises the main item below.

Chassis, E-Maxx (Long Wheelbas

This is the Long Wheelbase Chassis for the Traxxas E-Maxx.

FEATURES:
Nylon construction, gray in color
Replaces used or broken chassis

CONSISTS OF:
One long wheelbase chassis

NEEDS:
Setup on the E-Maxx

SPECIFICATIONS:
Length: 11.5" (292.1mm)
Width: 6.5" (165.1mm)

You will love this product if you have the product just above mentioned.

Box, Receiver Sealed W/Silicon

This is the Receiver Box for the Traxxas E-Maxx Truck.

FEATURES:
Replaces broken receiver boxes
Constructed of black plastic

CONSISTS OF:
One top and bottom half receiver box for the Traxxas E-Maxx
Hardware

NEEDS:
Installing receiver and bolting receiver box to chassis.

Here is an additional item that praises the item being discussed.

Motor Plate For Single Motor

This is the optional Single Motor Plate for the
Traxxas E-Maxx 16.8V RTR.

FEATURES:
Aluminum construction, blue in color
Developed for a tidy set up of a single brushless motor system in
the E-Maxx 16.8V RTR (needs gear cover number TRAC3997)

CONSISTS OF:
One Aluminum Motor Plate

NEEDS:
Setup and motor cover number TRAC3997

The below item likewise pairs truly well with the item being discussed.

Center Half Shafts E-Revo

This is the Center Half Shaft Set for the Traxxas E-Revo

FEATURES:
Plastic construction, black in color

CONSISTS OF:
Center half shafts (three internal splined and 2 external splined)

NEEDS:
Setup on the automobile

SPECIFICATIONS:
Size: 17.2mm (0.68")

Lots of others have actually gotten this item along with the item that you are currently reading about.

Skid Plate Gray E-Maxx

This is the Transmission Skid Plate
for the Traxxas E-Maxx.

FEATURES:
Gray nylon construction

CONSISTS OF:
One nylon transmission skid plate

NEEDS:
Setup on the E-Maxx

SPECIFICATIONS:
Length: 4.60" (117mm)
Width: 2.40" (61mm)

Want an additional fantastic item to match the above pointed out item?

3 X 12Mm Cntrsnk Machine Screw (6)

This is a package of six 3x12mm Traxxas Countersunk Hex Head Screws.

FEATURES:
Steel construction, Black in color
Used on the Traxxas Revo monster truck, can likewise be utilized in any
    application where a 3x12mm countersunk screw is required

CONSISTS OF:
Six 3x12mm Traxxas Countersunk Hex Screws

NEEDS:
2mm hex head wrench, GPMR8011

SPECIFICATIONS:
Length: 12mm
Size: 3mm

You will love this product if you have the product just above mentioned.



This is the 3-Channel Futaba 3PRKA 2.4GHz FHSS Radio System
with the R203GF Receiver.

FEATURES:
Ideal upgrade for radios discovered in RTR vehicles
Throttle and guiding trim and reverse
Steering double rate dial
Throttle end point change
Channel three switch
Throttle fail safe
One year minimal guarantee through Pastime Solutions beginning at date
    of purchase

CONSISTS OF:
Futaba 3PRKA 2.4GHz FHSS Transmitter, R203GF Receiver, Instruction
    Manual and On/Off Change

NEEDS:
Servos of modeler's choice
4 AA batteries for transmitter

SPECIFICATIONS:
Transmitter:
Sending Frequency: 2.4GHz band
Power Requirement: 4 AA cells
Current Drain: 100mA or less

    Receiver;
Dimensions: 1.54 x 1.02 x 0.39" (39 x 26 x 10mm)
Weight: 0.28oz (8g)
Operating Voltage: 4.8 - 7.4V (shown servo)
Battery Fail Safe Voltage: 3.8V*
Current Drain: 30mA at no signal
*Battery fail safe voltage is set for 4-cell NiCd/NiMH battery
Battery F/S does not work properly when other kind of battery is utilized

COMMENTS:
2.4GHz FHSS is not compatible with FASST systems.
Normal mode frame rate is (FHSS/S-FHSS) 13.63ms and accepts any
kind of servos or peripherals.
High-Speed mode (in 4PL tx only), with an output of 6.8ms accepts
    digital servos including the BLS series and most peripheral
    devices such as brushless ESCs
X-Plosion Parts Finder Part also Fits on the vehicles below:

Frequently Bought Together

Traxxas Chassis Braces, Lower (Black)
+
Traxxas Chassis, E-Maxx (Long Wheelbas
+
Traxxas Box, Receiver Sealed W/Silicon
This Item: Traxxas Chassis Braces, Lower (Black)
$8.49
Traxxas Chassis, E-Maxx (Long Wheelbas
$20.00
Traxxas Box, Receiver Sealed W/Silicon
$12.49

Total Price: $40.98

Add All Three To Cart
Visual Parts Finder
What's New?