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Product information

Details & specifications

SDI DU Piston Bushing Conversion Kit

SDI DU Piston Bushing Conversion Kit by SDI is a replacement parts listing built for riders searching by exact product name, fitment, style, and part number.

Key Features

  • Replaces stock wear band; standard piston rings often wear dramatically in the first five hours changing low-speed damping
  • Designed to lower friction and create consistent damping for the life of your oil

Part Numbers

0450-0618, DRPBK-WP36, 0450-0616, DRPBK-SH40, 0450-0623, DRPBK-KYB40, 0450-0614, DRPBK-KYB46, 0450-0619, DRPBK-WP46XPL, 0450-0615, DRPBK-KYB50, 0450-0617, DRPBK-SH50, 0450-0620, DRPBK-WP50, 0450-0621, DRPBK-WP5016, 0450-0622, DRPBK-WP50PDS, 0450-0664, DRPBK-WP5023

Available Styles

36 mm; 40 mm; 46 mm; 50 mm

Available options: 11

Check your bike

Bike compatibility

Match the year, make, model and any additional restrictions. If you're unsure, confirm with us before ordering.

Check with our team ↗

  • 2011 KTM 450 Xc-W
  • 2012 KTM 450 Xc-W
  • 2013 KTM 450 Xc-W
  • 2014 KTM 450 Xc-W
  • 2015 KTM 450 Xc-W
  • 2016 KTM 450 Xc-W
  • 2016 KTM 350 Xc-F
  • 2012 KTM 500 EXC
  • 2013 KTM 500 EXC
  • 2014 KTM 500 EXC
  • 2015 KTM 500 EXC
  • 2016 KTM 500 EXC
  • 2013 KTM 500 Xc-W
  • 2014 KTM 500 Xc-W
  • 2015 KTM 500 Xc-W
  • 2016 KTM 500 Xc-W
  • 2011 KTM 200 Xc-W
  • 2012 KTM 200 Xc-W
  • 2013 KTM 200 Xc-W
  • 2014 KTM 200 Xc-W
  • 2015 KTM 200 Xc-W
  • 2016 KTM 200 Xc-W
  • 2011 KTM 250 Xc-W
  • 2012 KTM 250 Xc-W
  • 2013 KTM 250 Xc-W
  • 2014 KTM 250 Xc-W
  • 2015 KTM 250 Xc-W
  • 2016 KTM 250 Xc-W

Before you order

Shipping & returns

Shipping rates & timing

Eligible standard U.S. orders ship free at $100+. Below $50: $19.95; $50–$99.99: $12.95. Standard transit is usually 3–5 business days after shipment. Processing and special-order timing vary. Checkout confirms the rate. Alaska, Hawaii and Puerto Rico are excluded.

Read shipping policy ↗

30-day return requests.

Eligible items must be unused, uninstalled and in their original condition and packaging. Request approval within 30 days of delivery. Ordinary return shipping is your responsibility; exclusions apply.

Read return policy ↗

Secure Shopify checkout.

Complete your order through Shopify. Available payment methods and any installment eligibility are shown at checkout.

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Good to know

Common questions

A few answers before you place your order.

How do I know I'm choosing the right fit?

Check the listed year, make, model and any trim restrictions. Product-level fitment information may cover several variants. If your exact bike isn't listed, ask us before ordering. Check compatibility details.

Does it include everything shown in the photos?

Use the product description and included-items list to confirm the contents. Reference photos may show optional accessories or another finish. If contents or quantities aren't specified, ask us before purchasing. See product details

When will my order arrive?

Availability is not a delivery-date guarantee. Orders may ship from Parts4Motorcycles, a distributor or the manufacturer. Standard U.S. transit is usually 3–5 business days after shipment; processing and special-order lead times are additional. Contact us if you need the item by a specific date. Email our team

Can I exchange it if I choose the wrong option?

We don't offer direct exchanges. For eligible unused items, request a return within 30 days of delivery, then place a new order for the correct option. Return approval and the policy exclusions apply. Read return policy

Added to your cart

SDI DU Piston Bushing Conversion Kit
SDI DU Piston Bushing Conversion Kit

50 mm 04500622

Qty: 1$19.95 each

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