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Traxxas T Maxx .15 To 2.5 Upgrade Kit (Traxxas 4900 | TRA4900)

Model: Traxxas 4900
Dist. #: TRA4900   SKU: TRA4900

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Price:  $25.00

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Updated on Jun 17, 2025 03:21:49 PM

T-Mx Pro .15 To TRX 2.5 Upgrade Kit...
This is the Pro .15 to TRX 2.5 engine conversion set from Traxxas.
It permits you to install the newer 2.5 engine to an older T-Maxx.

FUNCTIONS:
Tuned pipe, bellcrank, & throttle servo horn made of plastic
Linkage wire made of steel

INCLUDES:
One Plastic Tune Pipeline w/Wire Hanger (TRAG5152)
One Exhaust Header w/Screws & O-ring (TRAG5140)
One Exhaust Coupler (TRAG5246)
One Slide Carbohydrate Link Bellcrank (TRAC5167)
One Slide Carbohydrate Linkage Set (TRAC5168)
One Drill Bit for drilling Bellcrank Post mounting holes
2 Tie-Straps for mounting Exhaust Coupler
One 90-degree pressure fitting
One 3x10mm maker cap screw w/washer
One instruction sheet
One drilling design template sheet

REQUIRES:
2.5 engine stock clutch system and stock engine install

SPECIFICATIONS:
Tune Pipeline Length: 101.6mm (4")
Header Pipeline Outer Diameter: 13mm (.51")
Drill Bit size: 3.175mm (.125")

COMMENTS:
If EZ Start system is needed, utilize TRAP5271

You will certainly love this product if you have the product above stated.

3.3 Engine Ips Shaft W/Pull Start

This is the Traxxas TRX 3.3 Racing Engine with Pull Starter.

FEATURES:
For usage in all Traxxas TRX2.5 and TRX 3.3 equipped cars
Pull starter can be gotten rid of to install the EZ Start
60% more peak power than the TRX2.5, with nearly 50% more power
    under the curve for strong linear acceleration
Round rear exhaust with one-piece IPS crankshaft
Composite body slide valve carburetor with high-volume air filter
Blue anodized aluminum cooling head with molded head protector

INCLUDES:
Traxxas TRX 3.3 Racing Engine with Pull Beginner and radiance plug
One instruction manual (TRAZ5300)
One service support guide and parts lis.
One set of engine decals
One engine break-in DVD
One little bottle of air filter oil
One air filter

REQUIRES:
Automobile fuel with 10%, 20% or 33% nitro content

SPECIFICATIONS:
Displacement: .20 cu in (3.3cc)
Practical RPM: N/A
Output: N/A
Weight: 10.9oz (305g)
Distance between mounting holes same side: 0.39" (10mm)
Distance between mounting holes opposite side: 1.2" (32mm)
Distance from center of engine to front bearing: 1.2" (32mm)
Distance/bottom of mounting flanges/top of cylinder head: 3.5" (88mm
Width of mounting flanges: 44mm

COMMENTS:
Other versions of the TRX 3.3 engine consist of;
    #5404 Single Shaft without Beginner, TRAG5404
    #5406 Multi-Shaft without Beginner, TRAG5406
    #5409 Multi-Shaft w/Recoil Pull Beginner, TRAG5409

Frequently Bought Together

Traxxas T Maxx .15 To 2.5 Upgrade Kit
+
Traxxas 2.5 Eng Ips Shft W/Recoil P/S
+
ARRMA Body Clip Retainer 1/8 Scale Black (4)
This Item: Traxxas T Maxx .15 To 2.5 Upgrade Kit
$25.00
Traxxas 2.5 Eng Ips Shft W/Recoil P/S
$169.95
ARRMA Body Clip Retainer 1/8 Scale Black (4)
$5.99

Total Price: $200.94

Add All Three To Cart

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