2Bros Parts

PISTON KIT 05-07 YZF250 77.00, WISECO 4882M07700B YAMAHA MX

$243.08

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

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Wiseco forged pistons are superior in strength and design. This piston kit features a 12.5:1 compression ratio and requires Nikasil bore-cylinder sleeving or replating for oversizes. The kit includes one 77.0mm piston, one 7700YC ring set, two CW16 circlips, and one S686 wrist pin. Pistons, rings, and kits are sold by application and bore size. This specific piston has a bore size of 77.00mm and part number 4882M07700B.

Specifications
SKU
56-W188.B.WI
Brand
Wiseco
Availability
In Stock (2)

Fitments (46)

MakeModelYear
GAS-GASEC F 2502010
GAS-GASEC F 2502011
GAS-GASEC F 2502012
GAS-GASEC F 2502013
GAS-GASEC F 2502014
GAS-GASEC F 2502015
YAMAHAWR 250F2001
YAMAHAWR 250F2002
YAMAHAWR 250F2003
YAMAHAWR 250F2004
YAMAHAWR 250F2005
YAMAHAWR 250F2006
YAMAHAWR 250F2007
YAMAHAWR 250F2008
YAMAHAWR 250F2009
YAMAHAWR 250F2010
YAMAHAWR 250F2011
YAMAHAWR 250F2012
YAMAHAWR 250F2013
YAMAHAWRF 2502001
YAMAHAWRF 2502002
YAMAHAWRF 2502003
YAMAHAWRF 2502004
YAMAHAWRF 2502005
YAMAHAWRF 2502006
YAMAHAWRF 2502007
YAMAHAWRF 2502008
YAMAHAWRF 2502009
YAMAHAWRF 2502010
YAMAHAWRF 2502011
YAMAHAWRF 2502012
YAMAHAWRF 2502013
YAMAHAYZ 250F2001
YAMAHAYZ 250F2002
YAMAHAYZ 250F2003
YAMAHAYZ 250F2004
YAMAHAYZ 250F2005
YAMAHAYZ 250F2006
YAMAHAYZ 250F2007
YAMAHAYZF 2502001
YAMAHAYZF 2502002
YAMAHAYZF 2502003
YAMAHAYZF 2502004
YAMAHAYZF 2502005
YAMAHAYZF 2502006
YAMAHAYZF 2502007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
77mm
Variant Id
254914
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco Piston Assembly - 4882M07700B

Enhance your motorcycle's performance with this high-quality Wiseco forged piston assembly. Engineered for superior strength and design, this piston is a critical component for engine rebuilds and upgrades.

Key Features:

  • Forged construction for exceptional durability and strength
  • 12.5:1 compression ratio
  • Nikasil bore compatible
  • Cylinder sleeving or replating may be required for specific oversize applications

This piston kit includes everything needed for installation:

  • One 77.0mm piston
  • One 7700YC ring set
  • Two CW16 circlips
  • One S686 wrist pin

Wiseco is known for producing a full line of forged pistons, big bore kits, and related engine components, ensuring you have access to top-tier parts for your performance needs.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

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.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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