Wrench Rabbit Complete Engine Rebuild Kit
1031-4507 (MFG #: WR101-137)
$1,712.43
Sale price
$1,712.43
Regular price
$1,712.43
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Wrench Rabbit Complete Engine Rebuild Kit for Polaris Sportsman SP 850 ATV
Wrench Rabbit Complete Engine Rebuild Kit for Polaris Sportsman SP 850 ATV
$1,712.43
Sale price
$1,712.43
Regular price
$1,712.43
SKU:1031-4507
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Description
FEATURES
- Convenient one-stop shop in a box; nearly all components required for a complete and professional rebuild
- Vertex piston kit (standard compression piston, rings, pin and clips)
- Hot Rods heavy-duty crank (stock stroke - includes wrist pin bearing for two strokes)
- Hot Rods main bearing/seal kit
- Hot Rods transmission bearing kit (includes transmission bearings, output shaft collar and sprocket lock washer)
- Hot Rods counter balancer bearing kit
- Hot Rods water pump bearing and seal kit
- Vertex complete gaskets kit, including seals and O-ring kit (covers top and bottom)
Technical Specifications
- MFG. Part Number WR101-137
Vehicle Information
Polaris Sportsman SP 850 ATV (2015-2019)
The Polaris Sportsman SP 850, produced from 2015 to 2019, is a robust all-terrain vehicle known for its powerful performance and versatility. Throughout these model years, it consistently featured an 850cc ProStar SOHC 4-Stroke Twin Cylinder engine, delivering a strong 78 horsepower. This engine was equipped with Electronic Fuel Injection (EFI) and liquid cooling, ensuring reliable operation across various conditions. While the core engine platform remained consistent, Polaris introduced several refinements and trim variations during this period. The "SP" designation typically indicated a premium package, often including features like power steering, Engine Braking System (EBS) with Active Descent Control (ADC), and upgraded wheels. "Touring" models were designed for two riders with a longer wheelbase, and the "High Lifter Edition" (introduced around 2017) was specialized for mud riding. For 2019, the Sportsman 850 models received notable upgrades, including a larger battery for improved starting and accessory power, enhancements to the adaptive electric power steering, and clutch improvements for quicker engagement. The Engine Braking System also saw refinements for smoother deceleration. These were mid-cycle improvements rather than a full generation change. FAQ:
Q: How do I ensure this product fits my Polaris Sportsman SP 850?
A: To guarantee compatibility, please use the year and edition selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil | Before Every Ride | Check level |
| Air Filter | Before Every Ride | Inspect and clean, replace as needed |
| Coolant | Before Every Ride | Check fluid level |
| Engine Oil & Oil Filter | Every 800 km or 6 months (whichever comes first) | Change oil and filter, inspect for leaks |
| Drive Belt | Every 800 km or 6 months (whichever comes first) | Inspect and adjust, replace as needed |
| General Lubrication | Every 800 km or 6 months (whichever comes first) | Lubricate all fittings, pivots, cables, etc. |
| Coolant | Every 800 km or 6 months (whichever comes first) | Test strength and inspect for leaks |
| Engine Oil & Oil Filter | Every 1 600 km or 1 year (whichever comes first) | Change oil and filter |
| Drive Belt | Every 1 600 km or 1 year (whichever comes first) | Inspect and adjust, replace as needed |
| Transmission Fluid & Gearcase Oil | Every 1 600 km or 1 year (whichever comes first) | Change fluid and oil |
| Spark Plugs | Every 3 200 km or 2 years (whichever comes first) | Inspect and replace as needed |
| Coolant | Every 8 000 km or 5 years (whichever comes first) | Flush system |