TRX450R Cylinder Kit 94mm Std 10.5:1 – Cylinder Works 04–05
Yamaha TRX450R Cylinder Kit – 94.00mm Standard Bore, 10.5:1 (Cylinder Works 2004–2005)
Refresh your TRX450R with this Cylinder Works 94.00mm stock-bore cylinder kit matched to a Vertex 10.5:1 piston. The nickel–silicon carbide–plated bore delivers durability and heat control while maintaining OEM look and fitment.
What’s Included
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94.00mm standard-bore cylinder (OEM appearance)
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Vertex piston kit, 10.5:1 compression
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Piston rings, wrist pin, and circlips
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Top-end gasket kit (valve stem seals not included)
Fitment
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Honda TRX450R: 2004, 2005
Warranty Info
Covered by the manufacturer’s warranty against defects in materials and workmanship.
Key Features
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Nickel–silicon carbide (Ni–SiC) plated bore for longer life
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Matched Vertex piston for performance and reduced engine noise
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Direct OEM-style replacement; no machine work needed*
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Replacement pistons, rings, and gasket kits available
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Designed for closed-course competition use
* Always verify clearances and tuning for your specific build and conditions.
Compliance: These items are designed exclusively for closed course competition use only. Use on public lands or highways in California is illegal.
📦 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.