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Description
FEATURES
- Stainless steel reduces thermal conductivity by up to 90% compared to aluminum
- Reduced braking temperatures provide better braking performance
- Eliminates the potential for becoming brittle or corroded like composite or chrome plated pistons, thus extending braking performance
- Eliminates failure prone ceramic inserts used on some models
Technical Specifications
- MFG. Part Number 18-9037
Vehicle Information
Polaris Xplorer 400 ATV (1995-2002)
The Polaris Xplorer 400, produced from 1995 to 2002, was a versatile ATV known for its robust two-stroke engine and capable four-wheel-drive system. It was powered by a liquid-cooled, single-cylinder engine with a precise displacement of 378.7 cc (often rounded to 378 cc or 395 cc), which remained largely consistent throughout its production run. While the core engine did not undergo a major generation break, notable evolutions occurred. The "400L" designation (for "liquid-cooled") was used from 1995 to 1997, before the model was simply referred to as "Xplorer 400" from 1996 to 2002. The year 1996 saw the introduction of significant improvements, particularly to the cylinder, piston, rear shock, and front hub seals. All models featured an on-demand 4x4 system and an automatic PVT transmission. FAQ:
Q: How can I ensure parts compatibility with my Polaris Xplorer 400?
R: Use the year and edition selector at the top of the page to find parts specific to your model. Q: Were there major changes to the Xplorer 400 between 1995 and 2002?
R: The core engine remained consistent, but significant improvements were introduced in 1996, and the "400L" designation evolved to "Xplorer 400".
Maintenance
| Component | Interval | Details |
| Engine Oil & Filter | Every 1,600 km, 100 hours or 12 months | Use 10W-40 ATV oil (approx. 1.9 L). An initial change is recommended after 25 hours of initial use. For the 1995 model, the interval was 50 hours or 6 months. |
| Air Filter | Inspect and replace as needed | Check installation and clean ducts. Replace if dirty. More frequent service for severe use. |
| Drive Belt | Inspect every 9,600 km or 600 hours | Replace as needed. |
| Spark Plug | Inspect and replace as needed | Generally every 1,600 km, 100 hours or 12 months. For the 2001 model, the gap is 0.7 mm (type BR8ES). |
| Coolant | Inspect seasonally, pressure test annually | Check level and add if needed. |