---
product_id: 1914225
title: "5207R TRX 2.5R Racing Engine"
brand: "traxxas"
price: "A$385"
currency: AUD
in_stock: true
reviews_count: 8
category: "Traxxas"
url: https://www.desertcart.com.au/products/1914225-5207r-trx-2-5r-racing-engine
store_origin: AU
region: Australia
---

# Free-flowing rear exhaust for max horsepower Optional EZ-Start push-button electric start 2-needle composite slide carburetor 5207R TRX 2.5R Racing Engine

**Brand:** traxxas
**Price:** A$385
**Availability:** ✅ In Stock

## Summary

> 🏁 Ignite your race day with the TRX 2.5R – Power, precision, and push-button convenience in one beast!

## Quick Answers

- **What is this?** 5207R TRX 2.5R Racing Engine by traxxas
- **How much does it cost?** A$385 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/1914225-5207r-trx-2-5r-racing-engine)

## Best For

- traxxas enthusiasts

## Why This Product

- Trusted traxxas brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium materials for durability that keeps your Traxxas RTR dominating lap after lap.
- • **Optimized Airflow:** High-volume intake with a two-stage air filter and turbulence-free design guarantees consistent, clean air for peak efficiency.
- • **Effortless Ignition:** Optional EZ-Start electric push-button system eliminates the hassle of pull-starting, getting you on track faster.
- • **Unmatched Horsepower:** Trick porting combined with a free-flowing rear exhaust maximizes engine output for race-ready performance.
- • **Precision Power Delivery:** Two-needle composite slide carburetor ensures razor-sharp throttle response and tuning control.

## Overview

The Traxxas 5207R TRX 2.5R Racing Engine is a high-performance nitro engine designed for RC vehicles, featuring a two-needle composite slide carburetor, trick porting, and a free-flowing rear exhaust to deliver superior horsepower. It offers an optional EZ-Start electric push-button system for easy ignition and a high-volume air intake with a two-stage filter engineered to eliminate airflow turbulence. Built with premium materials, this engine ensures long-lasting reliability and race-ready power.

## Description

Product Description TRX 2.5R ENGINE IPS SHAFT W/ RECOIL STARTER The TRX 2.5 Racing Engine is nothing short of amazing. It comes loaded with all the hottest performance goodies. The two-needle composite slide carburetor, trick porting, and free-flowing rear exhaust deliver unmatched, class-leading horsepower! Plus the TRX 2.5 has the option of push-button starting convenience of the EZ-Start Electric Starting System. The TRX 2.5 Racing Engine uses a high-volume air intake system with a two-stage air filter. The filter housing and neck are designed to mate seamlessly with the carburetor to eliminate turbulence in the air-flow going into the engine. Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings. From the Manufacturer Straight-through exhaust flow.

Review: The best .15 size nitro engine ever made. - This is one of the best .15 size nitro engines ever produced. Got 10 years out of the first one i installed. Powerful, reliable, easy to tune, and easy to start.
Review: traxxas tmaxx - The best engine that you could possibly get for your traxxas vehicle. My traxxas tmaxx had the 2.5 but it had air leaks so I baught the 2.5R

## Features

- TRX 2.5 Racing Engine comes loaded with all the hottest performance goodies
- Two-needle composite slide carburetor, trick porting, and free-flowing rear exhaust deliver unmatched horsepower
- TRX 2.5 has the option of push-button starting convenience of the EZ-Start Electric Starting System
- TRX 2.5 Racing Engine uses a high-volume air intake system with a two-stage air filter
- Filter housing and neck are designed to eliminate turbulence in the air-flow going into the engine

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BOR0D0 |
| Best Sellers Rank | #209,053 in Toys & Games ( See Top 100 in Toys & Games ) #2 in RC Combustion Engines |
| Customer Reviews | 4.3 4.3 out of 5 stars (100) |
| Date First Available | February 24, 2007 |
| Global Trade Identification Number | 00020334520784 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.18 pounds |
| Item model number | 5207R |
| Manufacturer | Traxxas |
| Manufacturer recommended age | 6 - 15 years |
| Phase Type | Three Phase |
| Product Dimensions | 8 x 2.63 x 5.13 inches |
| UPC | 020334520784 |
| Wattage | 1.4 KW |

## Product Details

- **Brand:** Traxxas
- **Item Weight:** 0.54 Kilograms
- **Item dimensions L x W x H:** 8 x 2.63 x 5.13 inches
- **Material:** As Pictured
- **Voltage:** 7.4 Volts (DC)

## Images

![5207R TRX 2.5R Racing Engine - Image 1](https://m.media-amazon.com/images/I/81J83opu81L.jpg)

## Questions & Answers

**Q: dose it come with a pull start or electric**
A: It comes with a pull start

**Q: Will electric start work on this engine from my 15 engine or got to buy another**
A: You have to buy another. The EZ Start 2 is what is needed. 5270R is the part number.

**Q: What heats the glow plug for initial start up.?**
A: It’s called a hot shot you can look it up under glow plug igniter or you can get easy start which is like a starter system for the motor which has a wire so you don’t have to have the glow plug igniter but they are glow plug murders anywhere from 8.00to 20 bucksAnd the ez start starts at like 17 bucks and up

**Q: On one picture it shows electric starter and on the other it shows pull start and no flywheel or clutches. Does it come with the spur gear and clutch?**
A: No pinion gear. It comes with a one way bearing and a pull start. No flywheel. No clutch shoes. Spur gear is on your transmission.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best .15 size nitro engine ever made.
*by C***H on June 24, 2016*

This is one of the best .15 size nitro engines ever produced. Got 10 years out of the first one i installed. Powerful, reliable, easy to tune, and easy to start.

### ⭐⭐⭐⭐⭐ traxxas tmaxx
*by B***S on October 24, 2013*

The best engine that you could possibly get for your traxxas vehicle. My traxxas tmaxx had the 2.5 but it had air leaks so I baught the 2.5R

### ⭐⭐⭐⭐⭐ Runs like a champ
*by S***N on October 12, 2015*

Replaced the original 2.5 (non R) in my Nitro Rustler. Runs like a champ. People tend to stick up their noses at the TRX line of engines, but the half-dozen I've had have all been easy to work with, hard pulling motors.

## Frequently Bought Together

- Traxxas 5207R TRX 2.5R Racing Engine
- Traxxas 4400 .15 to 2.5 Upgrade Kit
- Traxxas 3147X 2' Fuel Line, 58-Pack

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-16*