SKI-DOO 512054300 Engine 126

( Brand: Ski-doo ), ( Manufacturer Part Number: 512054300 ), ( Part Type: Engine )

Review SKI DOO 126 Engine Support fits MXZ 500 1998

Introducing the Ski-Doo MXZ 500 engine, model number 512054300, from the esteemed year of 1998. This engine is a part of Ski-Doo's legacy in the snowmobile industry, known for its power, reliability, and exceptional performance.

The MXZ 500 engine is a two-stroke, liquid-cooled powerhouse, boasting a displacement of 498.9 cubic centimeters. It features a 72 x 61.1 mm bore and stroke, which allows for a robust power output while maintaining a reasonable weight. The engine employs a reed-valve induction system, ensuring efficient intake and exhaust strokes for optimal power transfer.

The engine's crankshaft is designed for durability and strength, with a forged steel material and a counter-balanced design that minimizes vibrations for a smoother ride. The piston is made of aluminum, which keeps the engine lightweight and contributes to its excellent thermal conductivity.

The MXZ 500 engine's cylinder head is designed with precision in mind. It includes a multi-port fuel injection system, which delivers fuel directly into the combustion chamber for improved combustion efficiency and reduced emissions. The engine also features a single-piece cylinder liner, which simplifies maintenance and increases the engine's lifespan.

The engine's cooling system is a closed-loop design, which circulates coolant through the engine block and cylinder head to maintain optimal operating temperatures. The system includes a thermostat, which regulates coolant flow to ensure the engine stays at the ideal temperature for optimal performance.

The MXZ 500 engine is equipped with a robust exhaust system, which includes a three-way catalytic converter and a muffler. These components help reduce exhaust emissions, making the engine environmentally friendly while still delivering the power and performance that Ski-Doo enthusiasts have come to expect.

The engine is also designed with ease of maintenance in mind. It includes accessible oil filters, spark plugs, and air filters, which can be changed quickly and easily. The engine's oil capacity is 1.3 quarts, and it requires a mix of 50:1 premixed two-stroke oil and fuel.

In summary, the Ski-Doo MXZ 500 engine, model number 512054300, is a powerful and reliable two-stroke engine that delivers impressive performance on the snow. Its advanced features, such as liquid cooling, multi-port fuel injection, and a robust exhaust system, make it a top choice for snowmobile enthusiasts. With its easy-to-maintain design and durable construction, this engine is sure to provide years of enjoyment on the snow.

The Ski-Doo MXZ 500 engine, model number 512054300, produced in 1998, is a popular choice among snowmobile enthusiasts. While every purchase comes with its own unique set of advantages and disadvantages, here's a brief analysis of this specific engine model.

1. Power and Performance: This engine delivers a robust power output, ensuring a thrilling and efficient riding experience. The 500cc two-stroke engine is known for its quick acceleration and responsiveness.

2. Durability: The MXZ 500 engine is renowned for its durability. Its robust design and high-quality components ensure that it can withstand the rigors of heavy snowmobile use.

3. Lightweight: In comparison to larger engines, the MXZ 500 is relatively lightweight. This makes it easier to maneuver and control, especially during tight turns and steep inclines.

1. Emissions: Being a two-stroke engine, the MXZ 500 produces higher emissions compared to modern four-stroke engines. This might not be an issue for those who prioritize power and performance over eco-friendliness.

2. Maintenance: Two-stroke engines require more frequent maintenance, including regular oil changes and tuning. This can add to the overall cost of ownership.

3. Fuel Efficiency: The MXZ 500 engine is not particularly fuel-efficient. Snowmobilers using this engine can expect to consume more fuel during long rides.

The Ski-Doo MXZ 500 engine, model number 512054300, offers a powerful and thrilling snowmobile experience. Its durability and responsiveness make it a popular choice among enthusiasts. However, it comes with the drawbacks of higher emissions, increased maintenance requirements, and lower fuel efficiency. Ultimately, the decision to buy this engine depends on your priorities and preferences. If you value power and performance above all else, the MXZ 500 might be the ideal choice for you. However, if you're more concerned with eco-friendliness, fuel efficiency, or lower maintenance requirements, you might want to consider alternative engines.

If you're set on buying the Ski-Doo MXZ 500 engine, be prepared for the increased maintenance requirements and fuel consumption. Ensure that you have a reliable source for parts and maintenance services, and budget accordingly. If you're looking for a more eco-friendly, fuel-efficient, or low-maintenance engine, consider exploring four-stroke engines from manufacturers like Yamaha, Polaris, or Arctic Cat.

Details:

PART NUMBER: 512054300. Thanks!, COMPATIBILITY: the following list if provided is all machines that share same part number as this item. You get listing AS PICTURED.

part #: 512054300 prices

• $28.99-$58.47

specifications snowpar:

• for models: Mxz, 500
• for makes: Skidoo, Ski-doo
• for years: 1998
• brand: Ski-doo
• mpn: 512054300
• part type: Engine

returns snowpar:

• policy: No Returns

seller snowpar:

• city: Hutchinson, Minnesota
• rating: 99.8%
• # reviews: 5336

offer snowpar:

• sold: 0
• best offers: True
• availability: In Stock
• started: January 14, 2026
• options: Ship-to-home
• quantity: 1

shipping snowpar:

• class: Standard
• service: Standard
• transit: 2-7 Days
• type: Fixed
• cost: $0.00

payments snowpar:

• wallet: Google-pay
• other
• credit card: Discover

general snowpar:

• Parts Accessories > Snowmobile Parts > Other Parts
• condition: Used

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