Skip to product information
SKU:
NLT2S01238
Ships for free in 2–4 business days.
150cc 57mm Big Bore Cylinder & Camshaft Kit for Yamaha TT-R125 / TT-R125E / L / LE
$85.59
In Stock
$85.59
Sale price
$85.59
Regular price
150cc 57mm Big Bore Cylinder & Camshaft Kit for Yamaha TT-R125 / TT-R125E / L / LE. This 57mm, approximately 150cc big-bore kit is intended for a Yamaha TT-R125 engine upgrade rather than a routine stock-size cylinder replacement.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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
- Yamaha TTR125
- Yamaha TTR125E
- Yamaha TTR125L
- Yamaha TTR125LE
Product Overview
This 57mm, approximately 150cc big-bore kit is intended for a Yamaha TT-R125 engine upgrade rather than a routine stock-size cylinder replacement. Bigger displacement changes the engine's operating demands and may require fuel-system tuning and clearance checks. Verify your exact engine version and what components are supplied before beginning the build.
Before ordering, compare this exact assembly with the part currently installed. A similar name or model year does not guarantee the same mounting, connector, dimensions or equipment options.
Key Features & Performance
- Application: Yamaha TT-R125 / TT-R125E / L / LE
- Purpose: Bigger displacement changes the engine's operating demands and may require fuel-system tuning and clearance checks
- Increased Performance: Boosts engine capacity to 150CC, providing improved acceleration and top-end power.
- Complete Kit: Includes the 57mm cylinder, performance camshaft, and piston ring set for a full top-end overhaul.
- Durable Construction: Manufactured using high-grade alloys to ensure heat resistance and long-term durability under demanding riding conditions.
Specifications
- Bore Size: 57mm
- Displacement: 150CC
- Kit Includes: Cylinder, Camshaft, Piston, Rings, Gaskets, and Wrist Pin
- Part Type: Big Bore Engine Upgrade Kit
- Condition: 100% Brand New Aftermarket
Part Numbers & References
Reference identifiers for matching; confirm the original assembly and specifications before ordering.
- TTR125
- TTR125E
Fitment & Installation Notes
This listing requires configuration-specific matching rather than year/make/model alone. Check the original item and specifications before ordering; contact Northline Parts with identifying details if needed.
Frequently Asked Questions
What should I check before ordering? Compare the original component and any part-number, side, engine, equipment or connector details shown above. If they differ, do not assume the item will fit.
Is this an OEM part? This listing is for an aftermarket replacement or accessory unless the product is expressly identified as genuine OEM. OEM numbers, when present, are references for matching, not a claim of OEM manufacture.
Part Summary
150cc 57mm Big Bore Cylinder & Camshaft Kit for Yamaha TT-R125 / TT-R125E / L / LE. Northline Parts listing for Camshafts. Application and fitment: Yamaha TTR125; Yamaha TTR125E. Part references: TTR125, TTR125E. Search terms: 150cc 57mm big bore cylinder camshaft kit for yamaha tt r125 r125e l le; replacement component; repair part; fitment; compatibility; installation.