🔧 Complete Engine Rebuild Kit – Yamaha Banshee (All Years & Models)
Everything you need to fully rebuild your Banshee motor — top to bottom. This comprehensive engine kit features high-performance aftermarket cylinders, a heavy-duty crankshaft, forged Wiseco pistons, and a full Maxlock stud setup for superior strength and longevity.
✅ Fits all Yamaha Banshee models and years
✅ No machining required – Bolt-on build with premium components
Brand New Aftermarket Cylinders – Stock spec fitment
Hotrods or Wiseco Heavy-Duty Crankshaft with Rods
Wristpin Bearings
Aftermarket Cylinder Head – Stock spec design
Wiseco Forged Pistons (513M06400)
Nitrite-Coated Hi-Temp Rings
Chrome Wristpins & Circlips
Maxlock Stud Kits
Allen Head Cylinder Stud Kit
Cylinder-to-Crankcase Stud Kit
Full Top & Bottom Half Stud Kit
Cylinder to Case Dowel Pins
Transmission Bearings
Shift Cam Bearing + Output Shaft Collar
Water Pump Bearing
Complete Gasket Kit
Complete Engine Oil Seal Kit
NGK Spark Plugs
Clutch Kit – Includes fibers, steels, and springs
Intake Manifolds – Compatible with stock carbs
Forged internals + HD crank = long life under hard use
Full Maxlock stud coverage for bulletproof bottom and top ends
Designed for performance, reliability, and easy installation
Everything is brand new in original packaging
Backed by manufacturer warranties
No case or cylinder modifications required
📦 Shipping Time:
Ships in 5–7 business days. Tracking provided once fulfilled.
💬 Customer Support:
Available Monday–Friday, 7 AM to 4 PM PST, with 24/7 live store chat for fast 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.
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I received the Cam, But there were no instructions.
Banshee - Dipstick & Oil Plug Billet - Modquad
My 400ex has never sounded better. New tensioner, guides, and chain fixed the noise. Metal bottom end gasket was cool too, didn't rip while working on it.
Thank you for your positive review! We're glad to hear that the TRX400EX Cam Chain Tensioner & Wiseco Heavy Duty Cam Chain Kit was able to fix the ticking noise on your 400ex. We agree, these small maintenance steps can make a big difference in the overall performance and sound of your vehicle. We appreciate your feedback and hope to continue providing quality products for your ATV. Happy riding!
Well my mechanic said it was some good parts in the box. I'll let you know how the rebuild goes. Great I hope
I haven’t received them yet
Trevor, thank you for your 5 star review. We appreciate that. Rest assured I just checked your tracking info and UPS says they will arrive today between 1:30 & 3:00 pm. Your going to love the Lectron Carburetors!