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 TRX Pro .15 Short Crank (Traxxas 4004 | TRA4004)

Model: Traxxas 4004
Dist. #: TRAG4004   SKU: TRA4004

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

Out of stock

Price:  $119.95

This item will earn you 120 reward point(s).
120 points = $2.40 off your next order. Learn More

Updated on Sep 25, 2025 11:16:56 PM

TRX Pro .15 Short Crank...
This is a Short Crankshaft Variation of the Traxxas TRX-15 Pro Engine.
It is for modelers who want greater performance than a .12 size engine
in their 1/10 scale kits such as Nitro Stampede, RC-10GT or GTX.
This is a Non-Pull Start Version.

FEATURES:
ABC (Aluminum Brass Chrome) Building
Extra-large Machined Aluminum Blue/Silver Anodized Cylinder Head
Channelled Beam Connecting Rod for Improved Oil Flow
Accuracy Ball Bearings
Large-Bore, High-Flow Carburetor
Double O-ring Seals on High and Low Needles
Industry-Standard Mounts and Crankshaft Lengths to Fit Many
    Applications.

INCLUDES:
One Assembled Engine Without Pull Beginner
One Air Cleaner (black rubber with black foam element)
One Complete Instruction Book and Parts Took Off View
One "Traxxas" Decal Sheet
Set Up Radiance Plug (basic long--no idle bar)

SPECIFICATIONS:
Inning Accordance With Traxxas, this engine will produce 20% more power than
    the TRX-12. Which is roughly 9-11% more power than the O.S.
    CZ-Z. These figures are checked on a dyno (packed) which supplies
    power curves on a computer. Traxxas was unable to provide any
    numbers on BHP, bore, stroke etc. Bear in mind that these figures
    are frequently useless, as they will vary from engine to engine. And
    there are other variables to think about: the set, terrain, %nitro
    in fuel, etc......
Total Length (front end of shaft to back of engine): 83mm (3.25")
Height (top of cylinder head to bottom of backplate): 93mm (3-5/8")
Width (cylinder head): 41mm (1-1/2")
Mount holes (center to center): left to right: 31mm (1-1/4")
front to back: 11mm (7/16")
Total width of installing ears (where the holes are): 40mm (1-9/16")
***Mounts the same as an OS .12 and .15 CV***

NEEDS:
A 1/10 scale set to put it into and 5%-20% Radiance Fuel.

COMMENTS:
For the Pro 15 w/Short Crankshaft & Pull Start, utilize TRAG4007.
If you have any other set, I would call the producer thereof-
    or call Traxxas directly at 1-888-TRAXXAS.
Traxxas engines run much hotter than "typical" engines (O.S., ASP,
    Thundertigre, etc.) Therefore, Traxxas advises their Top Fuel
    (TRAP5010) and their glow plug (TRAG3230) to run the engine cooler.
Visual Parts Finder