WINTER SALE - Up to 20% Off + E46 Giveaway Entries with Each Purchase - Limited Time!
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Verify parts fit & get product recommendations

Mon–Fri: 9 AM–5 PM EST

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VERIFIED REVIEWS

Wiseco Top End Bearing 18 x 22 x 21.8mm Bearing

  • Fitment verified for YOUR exact year/model/trim
  • Not sure? Ask a Tech (takes 5 min, we confirm before you order)
  • Damage replacement + 30-day returns
Wiseco  |  SKU: WISB1003
Shipping

Most orders ship in 3-5 days

$19.79
OR
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$0.82/mo
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30-Day Returns30-Day Returns
One Year WarrantyOne Year Warranty
Final cost may change with address, discounts, or cart changes.
LIVE NOW: Automatic entries into the E46 Giveaway!
Every $1 = 1 Entry into our E46 Giveaway!
As the leading manufacturer of forged two-stroke pistons, Wiseco knows top end bearings are crucial to your top end rebuild. Wiseco two-stroke top end bearings are manufactured by leading bearing suppliers and inspected for quality.

This Part Fits:

Year Make Model Submodel
2001,2004,2007-2008 Arctic Cat Panther 370 Base
2003,2005-2006 Arctic Cat Panther 370 R Base
1999-2007 Arctic Cat Z 370 Base
2000-2002 Arctic Cat Z 370 ES Base
2003 Arctic Cat Z 370 ESR Base
2004-2007 Arctic Cat Z 370 LX Base
2000-2019 Gas Gas EC 250 Base
2010-2012 Gas Gas EC 250 4T Base
2017 Gas Gas EC 250 R Base
2010 Gas Gas EC 250 Racing Base
2011-2014 Gas Gas EC 250 Replica Base
2019 Gas Gas EC 250 Six Days Chile 18 Base
2011-2015 Gas Gas EC 250E Base
2000-2019 Gas Gas EC 300 Base
2012-2017 Gas Gas EC 300 R Base
2011-2014 Gas Gas EC 300 Replica Base
2019 Gas Gas EC 300 Six Days Chile 18 Base
2011-2015 Gas Gas EC 300E Base
2019 Gas Gas EC Ranger 300 Base
1997 Gas Gas Enducross 250 Base
1998-2009 Gas Gas Enducross EC 250 Base
2000-2009 Gas Gas Enducross EC 300 Base
1998-2009 Gas Gas MC 250 Base
2000-2019 Gas Gas XC 250 Base
2011 Gas Gas XC 250 4T Base
2011 Gas Gas XC 250 Cervantes Replica Base
1981-1986 Honda ATC250R Base
1973-1976 Honda CR250M Base
1978-2007 Honda CR250R Base
1981-1984 Honda FL250 Odyssey Base
1985 Honda FL350R Odyssey Base
1986-1989 Honda TRX250R Base
1974-1984 Husqvarna CR250 Base
1974,1976-1984 Husqvarna WR250 Base
1992-1993,1996 Husqvarna WXC 250 Base
1994-1996 Husqvarna WXE 250 Base
1980-1982 Moto-Ski Futura L/C Base
1980-1982 Moto-Ski Mirage I Base
1980-1983 Moto-Ski Mirage II Base
1980-1982 Moto-Ski Mirage IIE Base
1980-1982 Moto-Ski Ultra Sonic Base
1990-1991 Sea-Doo GT Base
1992-1996 Sea-Doo GTS Base
1992-1993 Sea-Doo GTX Base
1991-1996 Sea-Doo SP Base
1993-1996 Sea-Doo SPI Base
1993 Sea-Doo SPX Base
1991-1992 Sea-Doo XP Base
1983-1987 Ski-Doo Alpine Base
1988-1990,1994 Ski-Doo Alpine II Base
1979-1981 Ski-Doo Blizzard 5500 Base
1981-1984 Ski-Doo Blizzard 5500 MX Base
1982 Ski-Doo Blizzard 9500 Base
1991 Ski-Doo Cheyenne Base
1991 Ski-Doo Citation Base
1980-1984 Ski-Doo Citation 3500 Base
1980-1983 Ski-Doo Citation 4500 Base
1985-1991 Ski-Doo Citation LS Base
1985-1991 Ski-Doo Citation LSE Base
1987 Ski-Doo Escapade Base
1980-1983 Ski-Doo Everest 500 Base
1997 Ski-Doo Formula 583 Base
1999-2001 Ski-Doo Formula Deluxe 380 Fan Base
2001 Ski-Doo Formula Deluxe 500 Base
1999-2001 Ski-Doo Formula Deluxe 500 Fan Base
1999-2000 Ski-Doo Formula Deluxe 500 LC Base
1989-1992 Ski-Doo Formula Mach 1 Base
1993-1995 Ski-Doo Formula Mach Z Base
1987-1990,1992-1995 Ski-Doo Formula MX Base
1993-1994 Ski-Doo Formula MX Z Base
1987-1993 Ski-Doo Formula Plus Base
1993 Ski-Doo Formula Plus X Base
1996,1998-2000 Ski-Doo Formula S Base
1996-1999 Ski-Doo Formula SL Base
1994-1996 Ski-Doo Formula STX Base
1994-1997 Ski-Doo Formula Z Base
1998-1999 Ski-Doo Formula Z 583 Base
2002-2003 Ski-Doo Grand Touring 380 Fan Base
1997-1999 Ski-Doo Grand Touring 583 Base
1994 Ski-Doo Grand Touring XTC Base
2005-2006 Ski-Doo GSX 550 Fan Base
2005-2006 Ski-Doo GTX 550 Fan Base
2003-2004 Ski-Doo Legend 380 Fan Base
1996 Ski-Doo Mach Z Base
1996 Ski-Doo Mach Z LT Base
2001-2006 Ski-Doo MX Z 380 Fan Base
1996-1998 Ski-Doo MX Z 440 Fan Base
2001-2002 Ski-Doo MX Z 500 Fan Base
1996-1998 Ski-Doo MX Z 583 Base
1984-1988 Ski-Doo Safari 377 Base
1988 Ski-Doo Safari 503 Base
1983 Ski-Doo Skandic 277 Base
1983 Ski-Doo Skandic 377 Base
1998-2000 Ski-Doo Skandic 380 Base
1996-2000 Ski-Doo Skandic 500 Base
2003 Ski-Doo Skandic 500 Sport Base
1997-2003 Ski-Doo Skandic 500 SWT Base
1984 Ski-Doo SS25 Base
2001-2002 Ski-Doo Summit 500 Fan Base
1994-1998 Ski-Doo Summit 583 Base
2001 Ski-Doo Touring 500 Fan Base
1995-2000 Ski-Doo Touring E Base
1995-1999 Ski-Doo Touring LE Base
1995-1999 Ski-Doo Touring SLE Base
1985-1992 Ski-Doo Tundra Base
1974-1979 Yamaha DT250 Base
1975-1978 Yamaha DT400 Base
1977-1982 Yamaha IT250 Base
1977-1978 Yamaha IT400 Base
1973-1975 Yamaha MX250 Base
1975 Yamaha MX400 Base
1984-1989 Yamaha PZ480 Phazer Base
1990-1996 Yamaha PZ480 Phazer II Base
1997-1998 Yamaha PZ480 Phazer SS Base
1987-1989 Yamaha PZ480E Phazer Deluxe Base
1985 Yamaha PZ480E Phazer E Base
1990-1996 Yamaha PZ480E Phazer II LE Base
1997-1998 Yamaha PZ480E Phazer SS Electric Base
1984 Yamaha PZ480SE Phazer SE Base
1991-1995 Yamaha PZ480ST Phazer II ST Base
1996-1999 Yamaha PZ480ST Phazer Mountain Lite Base
1999-2001 Yamaha PZ500 Phazer 500 Base
2001 Yamaha PZ500DX Phazer Deluxe Base
2000-2001 Yamaha PZ500ML Phazer Mountain Lite Base
1980-1985 Yamaha SS440 Base
1991-1997 Yamaha VT480 Venture XL Base
1992-1993 Yamaha VT480GT Venture GT Base
1996-1998 Yamaha VT480TR Venture TR Base
1976-1982,1999-2022 Yamaha YZ250 Base
2016-2022 Yamaha YZ250X Base
1977-1978 Yamaha YZ400 Base

No specs added yet.

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.

  • One-stop shop for mods across brands/platforms
  • Highest quality, from trusted manufacturers
  • Fitment help from real enthusiasts

What You Get With Every Order

Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Get Help From People Who Actually Understand Builds & Fitment.
Get Help From People Who Actually Understand Builds & Fitment.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Join Thousands of Builders Who
Trust K2
Join Thousands of Builders Who Trust K2

Built By Someone Who's Been There

Max, the Owner, started in his garage making E36 M3 tail lights in his own oven.

  • • Started modifying cars before he could legally drive them
  • • Spent years hunting down parts that actually fit and don't suck
  • • Made the same fitment mistakes you're afraid of
Founder photo

What Sets K2 Industries Apart?

We don’t just sell parts. We actually give a damn.
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
K2 Industries
Other Brands
K2 Industries
Other Brands
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
Add to Cart
GuaranteePerfect fit guaranteed

See Why Customers Love K2 Industries

Frequently Asked Questions

Why Buy from K2 Industries

What makes K2 Industries more than just a parts supplier?

We’re a team of USA-based car enthusiasts committed to helping you get your build right the first time. With our deep product knowledge and close relationships with trusted manufacturers, we ensure you receive high-quality parts that perform. We’re here to support you before, during, and after your purchase, providing personalized advice, part compatibility checks, and responsive customer service. When you buy from us, you’re joining a community that cares as much about your car as you do.

How do I know which parts are best for my car and goals?

Answer: Our team can provide personalized mod plans to match your performance and style goals. Whether you’re building for speed, aesthetics, or both, we’ll help you select the right parts for your vision. Contact us to discuss your project!

Do You Have Financing Options?

Answer: Yes, we offer flexible financing options to make it easier for you to upgrade your vehicle without paying the full amount upfront. Choose our financing option at checkout to split your purchase into manageable payments, so you can start your build now and pay over time.

Visit our FULL FAQ Page

Shipping

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How long will it take to receive my order?

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

Other

Any question?

You can contact us through our contact page! We will be happy to assist you.