ARCTIC CAT 1704-002 Left Idler Block 2604-579

( Brand: Arctic Cat ), ( Manufacturer Part Number: 1704-002 ), ( Part Type: Idler Block ), ( Country Of Origin: United States )

Review ARCTIC CAT Left Idler Support Block fits FIRECAT BEARCAT PANTHER

The **Arctic Cat 1704-002 Left Idler Block** (compatible with the **2604-579 FireCat, BearCat, and Panther** models) is a precision-engineered component designed to enhance the performance, durability, and reliability of your Arctic Cat snowmobile. This high-quality idler block is crafted from robust, heat-resistant materials, ensuring it can withstand the extreme conditions of heavy-duty snowmobile operation, including prolonged use in deep powder, icy terrain, or prolonged high-speed runs. Positioned strategically on the left side of the drive system, this idler block plays a critical role in maintaining proper tension on the drive belt, preventing slippage, and reducing unnecessary wear on the belt and pulleys. Its seamless integration with the **FireCat, BearCat, and Panther** series known for their powerful engines and off-road capabilities makes it an essential upgrade for riders seeking optimal traction and efficiency. The block s reinforced construction minimizes vibration and noise, contributing to a smoother, more controlled ride even during aggressive maneuvers. Whether you're tackling steep climbs, navigating tight trails, or pushing through dense snow, this idler block ensures consistent power transfer, reducing the risk of belt failure and extending the lifespan of your snowmobile s drivetrain. Built to Arctic Cat s exacting standards, this part is a direct-fit replacement, guaranteeing compatibility without the need for modifications. Investing in the **1704-002 Left Idler Block** is a proactive step toward preserving the performance and longevity of your Arctic Cat, ensuring it remains a dependable companion for years of exhilarating adventures.

### **Pros and Cons of Buying Arctic Cat Idler Blocks (1704-002, 2604-579, FireCat/BearCat/Panther Models)**

1. **OEM Quality and Compatibility** Arctic Cat idler blocks are manufactured to meet the exact specifications of Arctic Cat snowmobiles, ensuring a proper fit and performance. Using genuine parts helps maintain the intended handling and drivetrain efficiency of the vehicle.

2. **Durability and Longevity** Arctic Cat components are built to withstand the harsh conditions of snowmobile use, including extreme cold, heavy loads, and frequent engagement with the track. High-quality materials reduce the risk of premature wear or failure.

3. **Reliability in Performance** Since these parts are designed specifically for Arctic Cat models (FireCat, BearCat, Panther, etc.), they integrate seamlessly with the drivetrain, reducing slippage, vibration, and unnecessary stress on other components like the sprocket or track.

4. **Easier Maintenance and Replacement** The idler block is a relatively simple part to replace, and Arctic Cat s design makes it accessible without extensive disassembly. This can save time and labor costs compared to aftermarket parts that may not fit as intended.

5. **Warranty and Support** Purchasing from Arctic Cat or an authorized dealer often comes with warranty coverage, providing peace of mind in case of defects. Aftermarket parts may not offer the same level of support.

6. **Consistency Across Models** The idler blocks mentioned (1704-002 for the left side, 2604-579 for the FireCat/BearCat/Panther) are designed to work across multiple Arctic Cat models, making them versatile for different vehicles in the same lineup.

7. **Reduced Risk of Voiding Warranty** Modifying a snowmobile with non-OEM parts can sometimes void the manufacturer s warranty. Using Arctic Cat-approved components helps preserve warranty coverage for other parts.

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1. **Higher Cost** Genuine Arctic Cat parts are typically more expensive than aftermarket alternatives. For budget-conscious buyers, this can be a significant drawback, especially if multiple components need replacement.

2. **Limited Availability** Depending on the region, Arctic Cat parts may not be as widely stocked as more common brands. This could require ordering online or waiting for shipments, adding inconvenience.

3. **Potential Overkill for Minor Issues** If the idler block is only slightly worn or the issue is minor (e.g., a loose bearing), replacing it entirely may be more than necessary. In such cases, a cheaper aftermarket part or repair might suffice.

4. **No Performance Advantage Over High-Quality Aftermarket** While Arctic Cat parts are reliable, some aftermarket brands (e.g., from reputable manufacturers like **Snowmobile Parts Depot, Arctic Track, or Bearcat Performance**) offer comparable durability at a lower cost. These alternatives often undergo rigorous testing and may provide similar longevity.

5. **Weight Considerations** Arctic Cat parts are designed for the specific weight and balance of their snowmobiles. In some cases, aftermarket parts may be slightly lighter, which could marginally improve acceleration (though the difference is usually negligible).

6. **Environmental and Ethical Concerns** Some buyers prefer to support sustainable or ethically sourced products. While Arctic Cat is a well-established brand, the environmental impact of manufacturing and shipping parts may be a consideration for eco-conscious consumers.

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- You prioritize **OEM quality, reliability, and warranty support**.

- You own an **Arctic Cat snowmobile** and want to ensure perfect compatibility.

- You re willing to **invest in long-term durability** without frequent replacements.

- You prefer **minimal risk of drivetrain issues** (e.g., track slippage, premature wear).

- You re on a **tight budget** and the part is only lightly worn, consider **high-quality aftermarket alternatives**.

- You re replacing multiple components, **shopping around for deals** on Arctic Cat parts or bundling with other necessary items (e.g., sprockets, tracks) could save money.

- You re unsure whether the idler block is the root cause of your issue, **diagnosing the problem first** (e.g., checking for track tension, sprocket wear, or bearing failure) may prevent unnecessary spending.

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For most **Arctic Cat owners** experiencing **track slippage, unusual noise, or visible wear on the idler block**, purchasing the **genuine Arctic Cat part (1704-002 for left idler, 2604-579 for FireCat/BearCat/Panther)** is the **safest and most reliable option**. The slight premium cost is justified by the **longevity, compatibility, and peace of mind** it provides.

If you re **replacing multiple parts or working with a limited budget**, compare prices from **authorized Arctic Cat dealers, reputable aftermarket suppliers, and online marketplaces** (e.g., **SnowmobileParts.com, ArcticTrack.com, or eBay from verified sellers**). Ensure any aftermarket part meets **Arctic Cat s specifications** (e.g., bearing size, mounting holes, material) to avoid future issues.

**Go with Arctic Cat OEM** if you want the best fit and longest service life. **Consider aftermarket** only if you ve verified compatibility and are confident in the brand s reputation. Never compromise on quality if the part is critical to drivetrain performance.

Details:

Fits the following machines:: 2003 Arctic Cat FireCat 500 Black. Al's Snowmobile and ATV parts. 2003 Arctic Cat FireCat 500 Green. Arctic Cat Left Idler Support Block 1704-002 2604-579 FireCat BearCat Panther.

Good used OEM idler wheel support block, left side.Arctic Cat P/N 1704-002 SSPN 2604-579.

part #: 1704002 prices

• $22.75-$46.99

specifications snowmobileshocksoi:

• for models: Firecat, Bearcat, Panther
• for makes: Arctic-cat, Arctic
• brand: Arctic Cat
• mpn: 1704-002
• part type: Idler Block
• country of origin: United States

returns snowmobileshocksoi:

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

seller snowmobileshocksoi:

• city: Newport, Vermont
• rating: 99.7%
• # reviews: 26762

payments snowmobileshocksoi:

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

offer snowmobileshocksoi:

• started: June 11, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

general snowmobileshocksoi:

• condition: Used
• Parts Accessories > Snowmobile Parts > Shocks Suspension

shipping snowmobileshocksoi:

• cost: $0.00
• type: Calculated
• service: USPS Ground Advantage, UPS Next Day Air Saver, FedEx 2Day
• transit: 5-12 Days
• carrier: USPS, UPS, FedEx
• class: Standard, One-day, Expedited

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