Name: Honda TRX 400EX/400X 87mm 416cc Top End Rebuild Kit
Brand: AZ
SKU: 3P-416-K-1
Price: 807.0 CAD
Availability: InStock

Honda TRX 400EX/400X 87mm 416cc Top End Rebuild Kit

$807.00

Shipping calculated at checkout.

Select Piston Kit

Wiseco 10:1 Compression (Pump Gas) Part #4606M08700

CP Carrillo 12.5:1 Compression (Race Gas) Part #M2008

JE 10.8:1 Compression (Pump Gas) Part #133889

JE 12:1 Compression (Race Gas) Part #199656

Add HotCams Timing Chain

Add Timing Chain YES (HotCams)

No Timing Chain I'm Good

Add Heavy Duty Stud Kit

Add Heavy Duty Stud Kit YES

I Don't Need No Stinking Stud Kit

More payment options

🛠️ 416cc Big Bore Top End Rebuild Kit for Honda TRX 400EX/400X

Upgrade your Honda TRX 400EX or 400X with this complete 87mm 416cc top end rebuild kit — the perfect solution for restoring performance or adding serious power. This bolt-on kit requires no machining and is compatible with both stock and modified engines.

📦 Kit Includes:

Brand New 87mm Cylinder – No core required
Custom 87mm Piston Kit – Choose your preferred brand at checkout (Wiseco, CP, or JE)
Cometic Top End Gasket Set – Premium head, base, and exhaust gaskets

🔧 Key Features:

Fits all Honda TRX 400EX & 400X models from 1999–2015
Works with OEM or modified heads and cranks
Compatible with pump or race fuel
No machining required – 100% bolt-on install
Backed by manufacturer’s warranty

📦 Shipping Time:
This engine kit typically ships within 5–7 business days. You’ll receive tracking as soon as it ships.

💬 Customer Support:
Available Monday to Friday, 7 AM to 4 PM PST, plus our store chat is open 24/7 for quick support.

We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.

We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.

Sold items are removed daily.

If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.

If you call we answer, if you text we respond, if you have a question we respond. Sometimes we sleep so it could be next morning but we will respond.

Thank you for shopping with us! We appreciate you!

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Honda TRX 400EX/400X 87mm 416cc Top End Rebuild Kit

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