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Traxxas Idler Gear, 20-Tooth/ Idler Ge (Traxxas 3996X | TRA3996X)

Model: Traxxas 3996X
Dist. #: TRA3996X   SKU: TRA3996X

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Store Pickup:

South Jordan, UT
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Price:  $5.99

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Updated on Jul 12, 2025 06:33:18 AM

Idler Gear 20T/Idler Gear Shaft E-Maxx...
This is the replacement 20 Tooth Idler Gear and Shaft for the
Traxxas E-Maxx 4WD RTR.

FEATURES:
Steel building and construction, weapon metal in color
Replaces a worn or broken idler equipment and shaft

INCLUDES:
One 20 Tooth Idler Gear
One 5x18mm Idler Gear Shaft

NEEDS:
Installation following the design manual

SPECIFICATIONS:
Externally Diameter: .86" (22mm)
Inside Diameter: .43" (11mm)
Density: .50" (12.5mm)

Right here is one more product that compliments the product being discussed.

Gearbox Halves, Shift Detent B

These are the replacement Gearbox Halves for the Traxxas E-Maxx Truck.

FEATURES:
Black plastic building and construction

INCLUDES:
Gearbox halves (front and back) and screws

NEEDS:
Rest of the gearbox contents

SPECIFICATIONS:
Length: 2.67 (68mm) (at best point)
Width: 3.42" (87mm) (at best point)

This product is regularly purchased with the above pointed out product.

Input Shaft/ Drive Gear Assemb

This is the replacement Input Shaft/Drive Gear Assembly for the
Traxxas 3905 E-Maxx Truck.

FEATURES:
Steel shaft, black in color
Steel drive equipment assembly, silver in color

INCLUDES:
One Input Shaft with 18 Tooth Top Gear

NEEDS:
Installation following the design manual

SPECIFICATIONS:
Shaft Diameter: 5mm
Shaft Length: 3.53" (90mm)
Thread Size: 4mm

This product compliments the main item here.

5 X 11 X 4Mm Ball Bearing (2) Blue Rubber Shield R Evo

This is a 2 pack of 5X11mm Ball Bearings for the Traxxas Revo.

FEATURES:
Metal bearing building and construction
Blue rubber dirt guards

INCLUDES:
(2) 5X11mm ball bearings, Part #5116

SPECIFICATIONS:
Inside size: 3/16" (5mm)
Externally size: 7/16" (11mm)
Width: 5/32" (4mm)

You will enjoy this product if you have the product previously pointed out.

6 X 12 X 4Mm Ball Bearing (2) Blue Rubber Sheild R Evo

This is a 6X12mm Ball Bearing Set from Traxxas.

FEATURES:
Steel building and construction
Blue rubber dirt guards

INCLUDES:
(2) ball bearings, Part #5117

SPECIFICATIONS:
Inside size: 6mm
Externally size: 12mm
Width: 4mm

COMMENTS:
This bearing set is utilized in the transmission and differentials of
    the Revo.

The listed below product likewise sets truly well with the product being discussed.

Output Shaft, Transmission

This is the Transmission Output Shaft for the Traxxas E-Maxx.

FEATURES:
Metal building and construction, black in color

INCLUDES:
One transmission output shaft, Part #5369

NEEDS:
Installation on the Traxxas E-Maxx

SPECIFICATIONS:
General length: 2.75" (70mm)
Diameter of drive dog install: .39" (10mm)
Diameter of shaft: .23" (6mm)

The listed below product likewise sets truly well with the product being discussed.

Output Gear, 33 T W/ Spacers (

This is the Output Gear 33T for the Traxxas E-Maxx Truck.

FEATURES:
Black nylon building and construction

INCLUDES:
One 33T output equipment
Two spacers

NEEDS:
Silicone Grease, usage TRAC6037

SPECIFICATIONS:
Outer size: 1.37" (35mm)
Density: 1.02" (26mm)
X-Plosion Parts Finder Part also Fits on the vehicles below:

Frequently Bought Together

Traxxas Idler Gear, 20-Tooth/ Idler Ge
+
Traxxas 5 X 11 X 4Mm Ball Bearing (2) Blue Rubber Shield R Evo
+
Traxxas OUTPUT GEAR, 36-TOOTH, ME
This Item: Traxxas Idler Gear, 20-Tooth/ Idler Ge
$5.99
Traxxas 5 X 11 X 4Mm Ball Bearing (2) Blue Rubber Shield R Evo
$4.49
Traxxas OUTPUT GEAR, 36-TOOTH, ME
$10.49

Total Price: $20.97

Add All Three To Cart

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