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NLT1R03834
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Wiseco 513M06400 64mm Forged Piston and Ring Kit for Yamaha Banshee RZ350
$76.99
In Stock
$76.99
Sale price
$76.99
Regular price
Pair of 64 mm standard-bore forged piston kits cross-referencing Wiseco 513M06400 for compatible Yamaha Banshee 350 and RZ350 twin-cylinder engines.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 1987–2006 Yamaha Banshee 350 YFZ350 sold in the United States
- Compatible later-market Yamaha Banshee 350 models using the same 64 mm engine specification
- 1984–1985 Yamaha RZ350 with matching piston specification
Product Overview
Low compression, piston slap, scored skirts, damaged ring lands, or a top-end teardown can lead to new pistons—but a forged kit cannot rescue an out-of-round or tapered cylinder. Both bores need accurate measurement and the finished clearance must match the piston maker’s specification.
These 64 mm pistons restore the standard bore size in the Banshee’s twin-cylinder two-stroke. The package should be matched to bore condition, pin diameter, compression height, ring style, and intended engine setup; cylinder machining is based on the actual pistons, not a nominal number alone.
Key Features & Performance
- 64 mm standard-bore forged piston construction
- Two-cylinder package with matching ring and pin hardware as supplied
- Cross-references Wiseco 513M06400 and Yamaha piston family 2GU-11631-00-94
- Suitable for a correctly measured Banshee or RZ350 top-end rebuild
Replaces Part Numbers
- 513M06400
- 2GU-11631-00-94
Common Uses
- Rebuilding a standard-bore engine after compression loss
- Replacing scored or damaged pistons after the failure cause is corrected
- Refreshing both cylinders during a planned top-end service
- Preparing measured cylinders for the specified forged-piston clearance
Technical Specifications
- Product Type: Forged Piston and Ring Kit
- Quantity: 2 piston assemblies
- Bore Diameter: 64 mm standard bore
- Engine Type: Twin-cylinder two-stroke
- Condition: New
- Machining: Measure each piston and follow its supplied clearance specification
Installation & Fitment
- Have both cylinders measured for taper, out-of-round, scoring, and deck condition
- Identify and correct air leaks, jetting, lubrication, cooling, or detonation that caused the old failure
- Set ring end gap, piston-to-wall clearance, pin clips, and piston orientation exactly as specified
- Pressure-test the assembled two-stroke engine and complete the recommended break-in
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.
Frequently Asked Questions
Q: Can I install standard-bore pistons in worn cylinders without machining? A: Only if measurement confirms the bores remain within the piston maker’s limits. Honing or boring decisions require actual dimensions.
Q: Why replace both pistons together? A: The cylinders share the same operating hours and tune. Servicing both supports balanced compression and gives both bores the same inspection standard.
Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.
Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.
Part Summary
keywords: Wiseco 513M06400 piston kit, Banshee 64mm forged pistons, Yamaha YFZ350 standard bore kit, RZ350 piston rings, Banshee top end rebuild, 2GU-11631-00-94 replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.