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SKU:
NLT1R02601
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Standard-Bore Top End Rebuild Kit for Polaris 500 Engines - 92mm Cylinder 1996-2013
$224.99
In Stock
$224.99
Sale price
$224.99
Regular price
This 92 mm standard-bore top-end kit fits select Polaris 500 engines used in Sportsman, Ranger, Magnum, Scrambler, Xplorer, ATP, Big Boss, and Worker models.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Polaris Sportsman 500 / 500 HO (1996-2013, verify engine)
- Polaris Ranger 500 (1999-2012)
- Polaris Magnum 500 (1999-2003)
- Polaris Scrambler 500 (1997-2012)
- Polaris Xplorer 500 (1997)
- Polaris ATP 500 4x4 (2004-2005)
- Polaris Sportsman X2 500 (2006-2009)
- Polaris Big Boss 500 (1998-2002)
- Polaris Worker 500 (1999 and 2001)
Product Overview
A 500 engine with low compression, piston slap, heavy oil use, or cylinder damage may need more than gaskets. This standard-size kit supplies the cylinder, piston, rings, pin, clips, and sealing pieces needed for a measured top-end rebuild.
Because Polaris used the 500 engine across many chassis, the engine code and original part numbers are more reliable than the body name alone. Inspect the cam, rockers, oil pump, crank, rod, and cooling system before installing new top-end parts.
Key Features & Performance
- 92 mm standard-bore cylinder and piston
- Complete top-end repair group for compatible Polaris 500 engines
- Useful when the original cylinder is scored or out of service
- Broad engine-family fitment beyond Sportsman models
- Cross-references major Polaris cylinder and piston numbers
Replaces Part Numbers
- 3087221
- 3087224
- 3089966
- 3086811
- 3086200
- 3085074
- 3085371
- 3085075
- 3085655
- 3087170
- 3085534
- 3084890
- 3089256
- 3090293
Common Uses
- Rebuilding a low-compression Polaris 500 engine
- Replacing a scored or worn cylinder
- Repairing piston or ring damage
- Refreshing the top end after overheating or oiling trouble
Technical Specifications
- Product Type: Top-end cylinder and piston kit
- Bore: 92 mm standard size
- Stroke Reference: 75 mm
- Engine Family: Polaris 500
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Measure the old cylinder and confirm the engine calls for a standard 92 mm bore
- Find and correct the cause of seizure, overheating, or lubrication failure
- Check ring end gap and piston-to-cylinder clearance before assembly
- Set valve train, cam timing, gasket surfaces, and torque values to specification
- Prime the oil system and complete a controlled break-in
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Match the engine code, 92 mm standard bore, cylinder and piston numbers, cam-chain layout, cooling passages, and gasket shapes. Model year, production date, serial number, trim, engine, installed options, and previous repairs can affect fitment.
Frequently Asked Questions
Q: Is this an oversized piston kit? A: No. It is a standard 92 mm bore kit; measure the engine before ordering.
Q: Can I install it without checking the lower end? A: The crankshaft, connecting rod, bearings, oil pump, and cooling system should be checked first so an existing failure does not damage the new top end.
Q: What should I compare before ordering? A: Match the engine code, 92 mm standard bore, cylinder and piston numbers, cam-chain layout, cooling passages, and gasket shapes.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and reference numbers identify fitment only.
Package note: The kit contains the cylinder, piston, rings, wrist pin, clips, and top-end gaskets shown; exact accessory contents should be checked in the photos.
Part Summary
keywords: Polaris 500 top end rebuild kit, 92mm Sportsman 500 cylinder, 3087221 piston kit replacement, Ranger 500 engine rebuild, Polaris 500 low compression repair, standard bore ATV cylinder kit
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.