09/11/2020
Revitalise Your Ride: The Rebuilt Arctic Cat 400 Engine
If you're a powersports enthusiast, you understand the vital role a reliable engine plays in the performance and enjoyment of your ATV or UTV. For owners of the popular Arctic Cat 400, finding a trustworthy replacement or upgrade can be a challenge. Fortunately, companies like PowersportsNation are dedicated to breathing new life into these robust machines by offering freshly rebuilt Arctic Cat 400 engines, ready to ship and get you back on the trails or tackling tough jobs.

This article delves into what makes a PowersportsNation rebuilt Arctic Cat 400 engine a compelling option, exploring their comprehensive rebuilding process, the quality of components used, and the peace of mind that comes with their warranty. We'll also briefly touch upon where you might find these engines and what customers can expect in terms of performance and value.
What is a Rebuilt Engine?
Before diving into the specifics of the Arctic Cat 400, it's important to understand what a 'rebuilt' engine entails. Unlike a 'used' engine, which is simply sold in its current condition, a rebuilt engine undergoes a thorough process of disassembly, inspection, cleaning, repair, and reassembly. During this process, worn-out or damaged parts are replaced with new or reconditioned ones, ensuring the engine operates to factory specifications, or often, even better.
PowersportsNation's Commitment to Quality: The Rebuilding Process
PowersportsNation prides itself on a rigorous and meticulous process for rebuilding their engines, ensuring that each Arctic Cat 400 powerplant leaving their facility is of the highest quality. Here’s a breakdown of their comprehensive approach:
1. Complete Disassembly and Cleaning
The journey begins with the complete teardown of the engine. Every component is meticulously separated. Following disassembly, the cases undergo a thorough cleaning process, either through hot tanking or high-pressure washing. This ensures that all old oil, grime, and contaminants are removed, providing a clean slate for inspection and reassembly.
2. Component Replacement and Refresh
This is where the true value of a rebuilt engine shines. PowersportsNation replaces key wear items with new components as standard. This includes:
- New Piston(s) and Rings: Essential for proper compression and sealing.
- New Gaskets and Seals: Crucial for preventing leaks and maintaining proper fluid levels.
- New Timing Chain (where applicable): Ensures accurate valve timing for optimal performance.
- Water Pump Seal Kit (if applicable): Prevents coolant leaks.
- New Oil Filter: For clean lubrication from the start.
- New Spark Plug(s): For reliable ignition.
3. Cylinder Head Overhaul
The cylinder head is a critical component for engine performance. PowersportsNation's process includes refreshing or completely rebuilding the heads using advanced machinery like the Rottler Head Machine SG7MTS. This involves:
- Valve Adjustment: Ensuring valves open and close at the precise moments.
- Trueness Check: Verifying the head is flat and free from warping.
- Surfacing/Planing: If necessary, the head is machined to ensure a perfect seal.
- Valve, Guide, and Seat Inspection: Worn valves, guides, or seats are replaced to ensure optimal sealing and performance.
4. Cylinder Honing and Replating
The cylinders are always inspected and, if necessary, overbored to the next standard size. Alternatively, they can be sent out for replating, a process that restores the cylinder wall to its original specifications, often with improved durability.
5. Crankshaft Inspection and Reconditioning
The crankshaft is the backbone of the engine’s rotational power. PowersportsNation meticulously inspects each crankshaft. If a crankshaft is not in excellent, near-new condition, it is either rebuilt or replaced entirely. For applications using automotive-style cranks and rods, all bearings are replaced. Roller bearings on the crankshaft are also replaced as needed.
6. Transmission Inspection (where applicable)
For engines with integrated transmissions, PowersportsNation conducts a thorough inspection of all parts for wear. This includes:
- Visible Inspection and Measurement: Checking for signs of wear on gears, bearings, and shift forks.
- Replacement of Worn Components: Any parts found to be worn beyond specification, including bearings, shift forks, and gears, are replaced.
7. Oil Pump Reconditioning
The oil pump is vital for engine lubrication. PowersportsNation disassembles and inspects all oil pumps. If an oil pump does not appear to be in near-new condition, it is either rebuilt or replaced to ensure consistent and adequate oil pressure.

8. Meticulous Assembly
With all parts inspected and replacement components on hand, the assembly process begins. Each engine is hand-built by skilled technicians who adhere to strict quality control standards. Every bolt is torqued to the manufacturer's specified tolerances, ensuring the longevity and reliability of the powerplant.
9. Crucial Test Running
PowersportsNation understands that a visually perfect engine isn't enough; it needs to perform. Leveraging their extensive inventory of used parts from their salvage operations, they have developed specialized test cradles and rollers. The goal is to test run 9 out of 10 engines that leave their facility, with an ongoing commitment to achieving 100% testing. This rigorous testing phase is critical for identifying and rectifying any potential issues before the engine reaches the customer, providing an invaluable layer of confidence.
Core Value and Returns
PowersportsNation also incentivizes the return of your old engine core by offering a payment of $200. Even if your old engine has damage, such as a hole, has been disassembled, or is seized, you will still receive 50% of the core value. They simplify the return process by providing a prepaid return label, making it hassle-free for you to send back your old unit. Simply call them to arrange for your return label.
Warranty Information
Understanding the warranty coverage is crucial when purchasing a rebuilt engine. PowersportsNation offers different warranty periods depending on the type of vehicle:
| Engine Type | Warranty Period | Coverage Details |
|---|---|---|
| Sport Quads & Sport Side-by-Sides (e.g., YFZ450, RZR) | 90 Days | Covers parts and labor (max labor coverage $500, if installed by a professional shop). |
| Utility ATVs & UTVs | 180 Days | First 90 days: Parts or exchange and labor (max labor coverage $500, if installed by a professional shop). Second 90 days: Parts or exchange only. |
It's important to note that the labor coverage is only applicable if the engine is installed by a professional shop within the industry.
Where to Buy Your Arctic Cat 400 Engine
While PowersportsNation is a primary source for their rebuilt engines, other reputable powersports retailers also carry parts and sometimes complete units. For instance, Dennis Kirk, a long-standing leader in the powersports industry since 1969, is mentioned as a place to purchase items like a 2005 Arctic Cat 400 4x4 Automatic. They offer a no-hassle return policy and free shipping on orders over $89, providing another avenue for customers to acquire necessary parts and accessories.
Customer Experience and Value
The value proposition of a rebuilt engine often comes down to performance and cost savings compared to a brand-new unit. Customers who have purchased used vehicles, like an Arctic Cat 400, often report satisfaction with their performance, noting good pulling power and top-end speed. While cosmetic issues might arise with used vehicles, addressing these can make the investment well worth the money paid. The availability of reliable, rebuilt engines ensures that owners can continue to enjoy their machines for years to come, even if the original powerplant has seen better days.

Frequently Asked Questions
Does PowersportsNation sell a rebuilt Arctic Cat 400?
Yes, PowersportsNation explicitly states they have freshly rebuilt Arctic Cat 400 (03-08) powerplants with manual transmission available and ready to ship.
What is included in a PowersportsNation rebuilt engine?
A rebuilt engine from PowersportsNation includes new pistons, rings, gaskets, seals, timing chain (if applicable), water pump seal kit (if applicable), new oil filter, and new spark plug(s). They also refresh or rebuild the cylinder heads and inspect/recondition the crankshaft and oil pump.
What is the warranty on a PowersportsNation rebuilt engine?
Sport quad and UTV engines generally have a 90-day warranty covering parts and labor (with limits). Utility ATV and UTV engines have a 180-day warranty, with the first 90 days covering parts and labor, and the subsequent 90 days covering parts or exchange only.
Do I have to return my old engine core?
While not mandatory, PowersportsNation pays $200 for your old engine core, with 50% value offered even for damaged or seized cores. They provide a free return shipping label to make the process easy.
Are rebuilt engines a good value?
Rebuilt engines can offer significant value by providing a reliable, performance-tested alternative to a new engine at a potentially lower cost. The rigorous rebuilding process and warranty offered by reputable companies like PowersportsNation add to their overall value proposition.
In conclusion, for Arctic Cat 400 owners seeking a dependable engine solution, the meticulously rebuilt powerplants offered by PowersportsNation represent a high-quality and cost-effective option. Their commitment to using quality parts, employing a thorough rebuilding process, and backing their products with a solid warranty ensures that you can get back to enjoying your powersports vehicle with confidence.
If you want to read more articles similar to Rebuilt Arctic Cat 400 Engines, you can visit the Engines category.
