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  • 0DO9031_AG1992.jpg
  • 0DO9031_AG1992.jpg
This product fits your Triumph Thruxton 865 2004

Brake Piston and Seal Kit Stainless Steel Front - by TRK - Triumph Thruxton 865 2004

Product Code : PKAG1992

4+ In Stock

Kit Contains:

  • Brake Caliper Stainless Steel Piston 27mm OD by 31mm Long (AG6209 , Qty 2)
  • Caliper Shaft Bolt Boot Honda MA3 (AB7220 , Qty 1)
  • Caliper Shaft Bolt Boot as Honda 45132-166-016 (AA5666 , Qty 1)
  • Bleed Nipple M8x1.25mm Pitch Stainless Steel (AA4918 , Qty 1)
  • Bleed Nipple Cover Black (AB7314 , Qty 1)
  • Copper Washers for Banjo Bolt (AB7343 , Qty 2)
  • Caliper Piston Seal and Dust Seal ID 27mm (AB7065 , Qty 2)
  • Brake Grease RED For Brake Caliper Rebuilds Small Sachet average contents 5g (AF8837 , Qty 1)

£49.11 £ 49.11 Incl. VAT

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Application List

Make Model Description Year Country
 

Triumph Front Brake Caliper Rebuild Kit with TRK Stainless Steel Pistons

If you’re planning a front brake caliper rebuild on your Triumph Bonneville 800 T100, Bonneville 865 T100, Thunderbird T398, Tiger 1050 or Daytona 955i (T525), upgrading to a TRK stainless steel piston kit is a smart and cost-effective solution. Over time, original front brake caliper pistons can become corroded, pitted or worn, leading to sticking calipers, uneven brake pad wear and reduced braking performance. TRK stainless steel pistons are designed as a direct replacement for OE components, equivalent to Triumph part numbers T2020050 and T2020542, offering superior resistance to corrosion and helping restore smooth, consistent braking. For riders searching for Triumph front brake caliper rebuild kits or high-quality motorcycle brake parts, this upgrade improves both safety and long-term reliability.

Another major advantage of this TRK front brake caliper piston kit is its excellent value and durability. Costing as little as a quarter of the price of OE components, it provides significant savings without compromising on quality, and each stainless steel piston is backed by a lifetime guarantee. When carrying out a Triumph front caliper rebuild, it’s essential to thoroughly clean the seal grooves, removing any built-up corrosion, dirt and road salt so the new seals seat correctly and the pistons move freely. Taking the time to do this properly helps prevent sticking brakes and ensures your Triumph front brake caliper performs at its best.

Motorcycle fitment

This TRK front brake caliper piston kit is suitable for a range of Triumph models, including:

  • Triumph Bonneville 800 T100
  • Triumph Bonneville 865 T100
  • Triumph Thunderbird T398
  • Triumph Tiger 1050
  • Triumph Daytona 955i (T525)

Why choose a TRK front brake caliper piston kit

  • Designed for Triumph front brake caliper rebuilds
  • Equivalent to Triumph OE part numbers T2020050 and T2020542
  • Stainless steel pistons resist corrosion and pitting
  • Direct replacement for original OE brake caliper pistons
  • Cost-effective alternative to genuine Triumph parts
  • Lifetime guarantee on stainless steel pistons

Benefits of rebuilding your front brake caliper

  • Restores smooth and consistent front braking performance
  • Helps eliminate sticking pistons and brake drag
  • Reduces uneven brake pad wear
  • Improves safety and braking control

Helpful rebuild hints

  • Thoroughly clean the seal grooves before installing new seals
  • Remove all corrosion, debris and trapped road salt from the caliper body
  • Inspect caliper bores for wear, scoring or pitting
  • Lubricate seals lightly with clean brake fluid or red rubber grease during assembly
  • Check pistons move freely before refitting the caliper

Installation notes

  • Fully strip and inspect the front brake caliper before rebuilding
  • Replace all worn seals and damaged components
  • Bleed the front brake system thoroughly after installation
  • Test braking performance carefully before riding
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Returns

We hope that you are happy with your order, however, there may be instances where you wish to return an item. We ask that customers return items unused and with their original packaging. All returns should include a covering note stating the reason for the return and the order number clearly marked. Please retain the proof of postage until we have confirmed receipt of the items. We recommend sending by a recorded postage method. Refunds will be processed by the original payment method. If you paid on card, it can take up to 7 days to appear back in your account, with PayPal refunds taking up to 30 days refund if you've simply changed your mind, you have 30 days from the date of purchase to return your item(s) for a refund. Customers are responsible for return shipping costs where items are supplied correctly.

Exchanges

We allow customers up to 6 months after the purchase date to return the item for exchange, provided the item is in re-saleable conditions and proof of purchase can be established.

Supply errors

We ask that customers report supply errors as soon as possible after delivery. We reserve the right to decline issues reported beyond 6 months of the purchase date. Please check your order thoroughly on receipt. Where goods are supplied in error, or arrive damaged, we will cover all shipping costs and exchange or refund in full. We reserve the right to charge a 15% restocking fee for items that are returned in poor condition or outside of the accepted time period.

Electrical Items

Please note that when fitting electrical parts these can be damaged by the same faulty electrical system that caused the initial failure and in such circumstances these parts cannot be returned for a refund

Fitting Issues


Where customers experience issues fitting parts to their vehicle, we will always endeavor to thoroughly investigate and rectify where possible. We will first try to ascertain that you have purchased for the correct model of bike and that no modifications have been made. We cannot be held liable for issues fitting standard parts to non-standard or modified vehicles. 

Kit Contains:

  • 2 stainless steel pistons
  • 2 wiper seals
  • 2 dust seals
  • 2 shaft boots
  • 1 stainless steel bleed nipple
  • 1 bleed nipple cover
  • 2 copper washers
  • 1 sachet of red rubber grease

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