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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 12, 2025 04:15:40 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 enables you to mount the newer 2.5 engine to an older T-Maxx.

FEATURES:
Tuned pipe, bellcrank, & throttle servo horn made from plastic
Linkage wire made from 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 installing holes
Two Tie-Straps for installing Exhaust Coupler
One 90-degree pressure fitting
One 3x10mm machine cap screw w/washer
One guideline sheet
One drilling template sheet

REQUIRES:
2.5 engine stock clutch system and stock engine mount

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

REMARKS:
If EZ Start system is needed, use TRAP5271

You will love this thing if you have the thing previously mentioned.

3.3 Engine Ips Shaft W/Pull Start

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

FEATURES:
For use in all Traxxas TRX2.5 and TRX 3.3 equipped vehicles
Pull starter can be removed to set up the EZ Start
60% more peak power than the TRX2.5, with almost 50% more power
    under the curve for strong linear velocity
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 Starter and glow plug
One guideline manual (TRAZ5300)
One service assistance guide and parts lis.
One set of engine decals
One engine burglary DVD
One little bottle of air filter oil
One air filter

REQUIRES:
Car 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 installing holes same side: 0.39" (10mm)
Distance between installing holes opposite side: 1.2" (32mm)
Distance from center of engine to front bearing: 1.2" (32mm)
Distance/bottom of installing flanges/top of cylinder head: 3.5" (88mm
Width of installing flanges: 44mm

REMARKS:
Other versions of the TRX 3.3 engine include;
    #5404 Single Shaft without Starter, TRAG5404
    #5406 Multi-Shaft without Starter, TRAG5406
    #5409 Multi-Shaft w/Recoil Pull Starter, 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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