- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engines & Engine Parts /
- Engine Kit Products /
- Pistons & Pins /
- WSM Piston Kit, 0.25mm Oversized to 73.25mm B...
0 ratings
Item #:
79871339
WSM Piston Kit, 0.25mm Oversized to 73.25mm Bore
Item #:
79871339
FJD 247
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Only 5 items left in stock.
Order now and get it around Wednesday, October 07
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
High performance forged pistons coated with MOS2 for superior heat absorption.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Precision Engineering
Manufactured for exact specifications, this piston kit ensures optimal fit and performance, enhancing engine efficiency compared to standard pistons.
Increased Bore Size
The 0.25mm oversized design allows for improved airflow and combustion, boosting power output for performance enthusiasts seeking more from their engines.
Durable Materials
Crafted from high-quality materials, this piston kit withstands high temperatures and pressures, ensuring long-lasting reliability and reduced risk of wear in demanding conditions.
Product Details
Product Technical Details
| Manufacturer | WSM |
| Brand | WSM |
| Item Weight | 15.2 ounces |
| Product Dimensions | 3.8 x 4.5 x 3.7 inches |
| Manufacturer Part Number | 010-840-04PK |
Who Should Buy?
-
Performance Enthusiasts
Ideal for riders looking to enhance engine performance with a precise oversized piston kit.
-
Engine Rebuilders
Perfect for professionals or DIY mechanics replacing pistons in older engines requiring standard bore specifications.
-
Custom Projects
Great fit for custom builds where slight bore adjustments cater to increased power demands.
-
Beginner Mechanics
Not suitable for novice users lacking engine rebuilding experience to ensure proper installation and outcomes.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the coating on the pistons?
Answer: The pistons are coated with MOS2 for high performance and heat absorption. -
Question:
Where are the pistons made?
Answer: The pistons are made in Germany. -
Question:
How many piston categories are available?
Answer: There are four piston categories available: standard, big bore, 5mm long rod, and big bore with 5mm long rod.
WSM Pistons & Pins Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
FJD 247
Order now and get it around Wednesday, October 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 5 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Competitively forged pistons
- Coated with MOS2 for high performance and heat absorption
- Ported to match WSM Banshee sleeves
- Four piston categories available
- Piston pin is 5mm higher on long rod pistons
- Made in Germany
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.