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Wiseco Pistons B1039 Top End Needle Bearing - 20x25x21.8mm

(Polaris 500 1999-2003, 600 XC SP 1999, 2001, 440 XCR 1998-99, 600 RMK 1998-2001, SL 1050 1997, 500 Classic 2000-03, 500 RMK 2000-02 + 34 more models)

Part of: Wiseco Pistons Top End Needle Bearing

Other options in this family: Wiseco Pistons B1005 Wiseco Pistons B1013 Wiseco Pistons B1001 Wiseco Pistons B1014 Wiseco Pistons B1030

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

B1039
12 reviews
Sale Price

$22.99

Estimated ship date Saturday, November 28

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Product Details

The Wiseco B1039 is a precision-engineered top end needle bearing designed for high-performance engine applications. This bearing measures 20mm inner diameter, 25mm outer diameter, and 21.8mm length, providing critical support for connecting rod small end and piston pin assemblies in two-stroke and four-stroke engines.

Key Features:

  • Case-hardened construction for maximum durability and extended service life
  • Precision tolerances ensure smooth operation at high engine speeds
  • Manufactured to OEM specifications for reliable performance
  • Reduces friction and wear in critical top end components
  • Compatible with various powersports and small engine applications

Wiseco bearings are manufactured to the highest quality standards, making them an excellent choice for engine rebuilds, performance upgrades, and routine maintenance. This bearing is essential for maintaining proper clearances and ensuring smooth piston operation throughout the engine's RPM range.

Products specifications

Fits

Polaris 500 1999-2003, 600 XC SP 1999, 2001, 440 XCR 1998-99, 600 RMK 1998-2001, SL 1050 1997, 500 Classic 2000-03, 500 RMK 2000-02, SLX 1999-2001, 440 1998, 440 Pro X 2001-03, 500 XC 1999-2003, 500 XC SP 1999-2007, 600 Classic 2001 + 29 more models

Product Type

Bearings

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Engine Type

ICE

Industry

Powersports

Out of Stock Message

Estimated Shipped Date 3-4 Weeks

Product Market

ATV/UTV

EBAY Category ID

177964

Title

Wiseco Powersports Top End Bearing 20 x 25 x 21.8mm

Title - Web

Wiseco Top End Bearing - 20 x 25 x 21.8 mm

everything was good

Stump simple checkout.

Easy and quick

Easy, efficient, and available discounts up front. I like that.

Very easy to use

Fast easy and great price

Super fast delivery great company great prices

Very nice experience and just product looking for.

Easy internet usage

Fast and easy checkout

Oh my god, my car rips now. Scary improvement. Will buy again, and aeromotive will have my lifetime support. Much love!!!

First time buyer from Autoplicity and found the website easy to navigate and find what I wanted quickly. They had the best price of all the other sites I checked, including shipping.

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