ROTAX 420-823-425 Cylinder Head Everest Ski Doo

( Brand: Rotax ), ( Manufacturer Part Number: 420-823-425 ), ( Part Type: Cylinder Head )

Review ROTAX Ski doo Vintage Snowmobile Cylinder Head Everest fits 1979

Introducing the Rotax 420-823-425 cylinder head, a high-performance component designed specifically for the Ski-Doo Everest 79 model. This cylinder head is engineered to deliver exceptional power, durability, and reliability for your snowmobile, ensuring a thrilling and unforgettable riding experience.

The Rotax 420-823-425 cylinder head is meticulously crafted using advanced manufacturing techniques and premium materials. It features a robust design with large cooling fins that maximize heat dissipation, allowing the engine to run cooler and more efficiently. The head also incorporates high-performance combustion chamber geometry, optimized for superior combustion efficiency and power output.

This cylinder head is equipped with a state-of-the-art intake and exhaust system. The intake ports are strategically designed to facilitate efficient airflow, while the exhaust ports are engineered to minimize backpressure and maximize exhaust gas flow. This results in increased engine performance and improved throttle response.

The Rotax 420-823-425 cylinder head is also compatible with various Ski-Doo performance upgrades, allowing you to further enhance the power and capabilities of your snowmobile. It comes with a factory-sealed gasket to ensure a perfect seal and easy installation.

In summary, the Rotax 420-823-425 cylinder head is a top-tier performance component designed specifically for the Ski-Doo Everest 79 model. Its robust design, large cooling fins, high-performance combustion chamber geometry, and advanced intake and exhaust system make it a must-have upgrade for any serious snowmobiling enthusiast. Upgrade your Ski-Doo Everest 79 with this premium cylinder head and experience unmatched power, durability, and reliability on the snow.

Pros and Cons of Buying a Rotax 420-823-425 Ski-Doo Cylinder Head for a 79 Everest

a. Enhanced Performance: This cylinder head is known for improving the engine's performance, providing better power and throttle response.

b. Durability: The Rotax 420-823-425 cylinder head is engineered with robust materials and a precise design, ensuring long-lasting usage.

c. Temperature Management: The head provides efficient cooling, reducing the risk of engine overheating.

d. Compatibility: This cylinder head is specifically designed for the Ski-Doo Everest 79 model, ensuring seamless integration.

a. Cost: Replacing a cylinder head can be an expensive investment, and this part is no exception.

b. Installation Complexity: The installation process of a cylinder head can be intricate, requiring specialized tools and technical expertise.

c. Availability: Depending on the market conditions and demand, availability of this specific cylinder head may be limited.

The decision to buy a Rotax 420-823-425 Ski-Doo cylinder head for a 79 Everest depends on various factors. If the priority is enhanced performance, improved durability, and efficient temperature management, this part is an excellent investment. However, the high cost, installation complexity, and potential availability issues should be considered before making a purchase.

Assess the current condition and performance of the existing cylinder head in the Ski-Doo Everest 79. If significant improvements are needed, or if the engine is showing signs of wear, investing in a new Rotax 420-823-425 cylinder head may be beneficial. Alternatively, seeking professional advice from a Ski-Doo dealer or mechanic can help determine the best course of action for the specific situation.

Details:

part #: 420823425 price

• $42.99

specifications enginesnowmobile:

• for makes: Ski-doo
• for years: 1979
• brand: Rotax
• mpn: 420-823-425
• part type: Cylinder Head

payments enginesnowmobile:

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

seller enginesnowmobile:

• # reviews: 14331
• city: Hinckley, Minnesota
• rating: 100.0%

offer enginesnowmobile:

• availability: In Stock
• started: January 17, 2026
• quantity: 1
• options: Ship-to-home
• sold: 0

returns enginesnowmobile:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

general enginesnowmobile:

• condition: New other see details
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

shipping enginesnowmobile:

• transit: 4-7 Days
• type: Calculated
• carrier: USPS
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail, USPS Priority Mail Express
• cost: $14.45

Rotax 420-823-425 Is Similar To:

• 0221500800 Ski-doo Coils 6 Nordic Olympique Rotax Elan Vintage 70 Engine Tnt (34.7% similar) These are sold as is. Will get parts as pictured. Check pictures to make sure you are OK with condition before buying. They do not look melted or anything so I think all or most should work. May fit others also. Used parts are normally dirty so expect them to have some grease, grime and or rust on ...(March 3rd, 2015)
• 1080 Bombardier Skidoo Rotax Gasket Repair Kit Llp Seals Base Head (24.3% similar) I am just charging what it costs me. I do combine shipping whenever possible. Also let us know if you are buying on several things. As the calculator can not combine by its self...(August 31st, 2018)
• 1190a Rotax 250 Ski-doo Moto-ski (37.7% similar) ...(December 7th, 2017)
• 2142p8 Rotax Ski-doo Bombadier Wiseco (43.2% similar) Piston only...(May 17th, 2017)
• 2145p2 Wiseco Vintage Ski Doo Rotax Rh Piston Kit Mm Closeout (35.6% similar) 00MM oversize for 371 motor 65...(November 28th, 2018)
• 2147p2 Wisco Bombardier Wiseco Piston Kit Skidoo Ski Doo Rings Rotax (7% similar) I am just charging what it costs me. I do combine shipping whenever possible. Also let us know if you are buying on several things. As the calculator can not combine by its self...(August 31st, 2018)
• 2152p4 Wiseco Vintage Ski Doo Rotax Tnt Fc Rh Piston Kit (38.5% similar) 040 oversize fits ski doo t'nt 669 kit includes piston, rings and clips no pin closeout item. Nos Wisc right hand piston kit 2153P4...(November 23rd, 2018)
• 2156p2 Wiseco Ski Doo Rotax (9.9% similar) Item is ready to ship out for free...(March 21st, 2018)
• 2166ps Wiseco Vintage Ski Doo Rotax Tnt Fa Piston Kit Standard (33.8% similar) Nib Wisc piston kit 2166PS standard bore fits ski doo t'nt 440 free air includes forged piston, cs ring and clips no pin...(September 4th, 2018)
• 2205635 399cc Ski Type Fan Doo Rotax Cooling Bomabardier 70-73 Shroud 401 Assembly (24.4% similar) What you see in the photos is what you get. Made in Austria cooling fan assembly with shroud. This spins freely and doesn't have hardly any play in the pulley at all...(February 24th, 2015)
• 2298p6 Wiseco Ski Doo Rotax Piston Kit Oversize Closeout (29.2% similar) Kit includes forged piston, LC rings and clips no pin closeout item...(January 9th, 2019)