2Bros Parts

PISTON KIT 79-81 DT175 66.25 +0.25 O/S PISTON KIT

£48.73

4.1 Trustpilot 99.9% positive on eBay

UK delivery £4.99, free over £60 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

PISTON KIT 79-81 DT175 66.25 +0.25 O/S. Piston Kit Bore 66.25 +0.25 O/S for Yamaha 175 cc two-stroke models, mainly for K models. Manufactured to precise standards for reliable rebuilds, it serves as a direct OEM replacement. High-grade materials for dependable service and consistent performance. Manufactured to exacting tolerances to support confident engine rebuilds. Meets or exceeds OEM quality. Direct OEM replacement. Cost-effective replacement component. Piston length: 68.9 mm. Crown edge to bottom skirt edge: 65 mm. Centre of pin to crown edge: 35.5 mm. Gudgeon pin size: 16 x 57 mm. Cross-Reference OEM Part Numbers: 2N5-11631-00, 2N5-11631-00-96, 2A7-11631-00-98, 443-11631-03-98.

Specifications
SKU
56-W254.025.AAA
Brand
No Brand
Availability
In Stock (2)

Fitments (4)

MakeModelYear
YAMAHADT 1751978
YAMAHADT 1751979
YAMAHADT 1751980
YAMAHADT 1751981
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
310134
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Piston Kit for Yamaha DT175 Models

This high-quality piston kit is designed as a direct replacement for specific Yamaha 175 cc two-stroke motorcycle engines, primarily the K models. Manufactured using premium materials and to exacting tolerances, this kit ensures reliable performance and durability for engine rebuilds. It meets or exceeds OEM quality standards, offering a cost-effective solution for restoring your motorcycle's power and efficiency. Please review the product images carefully to confirm compatibility before purchase.

Key Features:

  • Constructed from high-grade materials for dependable service and consistent performance.
  • Manufactured to exacting tolerances to support confident engine rebuilds.
  • Meets or exceeds OEM quality specifications.
  • Designed as a direct OEM replacement part.
  • Offers a cost-effective solution for engine maintenance.
  • Features straightforward installation; professional installation is recommended if unsure.
  • Specifically intended for use with primarily K model engines.

Specifications:

  • Bore Size: 66.25 mm (+0.25 mm Oversize)
  • Piston Length: 68.9 mm
  • Crown Edge to Bottom Skirt Edge: 65 mm
  • Center of Piston Pin to Crown Edge: 35.5 mm
  • Gudgeon Pin Size: 16 x 57 mm

Cross-Reference OEM Part Numbers:

  • 2N5-11631-00
  • 2N5-11631-00-96
  • 2A7-11631-00-98
  • 443-11631-03-98
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

More answers in our FAQ.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1