Wiseco Forged Piston Kit with Gaskets - Yamaha TTR125 (2000-2018) - 54.50mm Bore (+0.50mm Oversize) - 11.0:1 - 4-Stroke
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Wiseco Forged Piston Kit with Gaskets - Yamaha TTR125 - +0.50mm Oversize
Premium Wiseco forged piston kit with complete top-end gasket set for the Yamaha TTR125 trail bike. This is the +0.50mm OVERSIZE (54.50mm) kit for worn cylinder bores!
⚠️ Oversize Piston - Cylinder Boring Required
This piston is +0.50mm oversize. Cylinder must be bored to 54.50mm for proper fit.
Kit Includes
- Piston Kit #4752M05450
- Ring Set #S2146XE
- Wrist Pin #S571
- Wrist Pin Retainer Set #CW15
- Gasket Kit #W5962
Bore Size Options
- 54.00mm - Standard (SKU 0903-0742)
- 54.50mm - +0.50mm Oversize (This Kit)
- 55.00mm - +1.00mm Oversize (SKU 0903-0741)
Piston Specifications
- Bore Size: 54.50 mm (+0.50mm Oversize)
- Piston Diameter: 54.45 mm
- Stroke Length: 54.00 mm
- Compression Ratio: 11.0:1
- Material: 4032 Aluminum Alloy
- Skirt Coating: Non-Coated
Engine Specifications
- Displacement: 123.7cc
- Engine Type: 4-Stroke
- Weight: 0.65 lbs
Fitment
- TTR125: 2000-2018
- TTR125L: 2000-2009, 2011
- TTR125E: 2003-2009
- TTR125LE: 2003-2009, 2011-2018
- TT-R 125 E: 2000-2002, 2010-2016
- TT-R 125 L: 2010, 2012-2018
- TT-R 125 LE: 2010
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
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