Yamaha YFZ450 Carb Hot Rods +3mm Stroker Crank Balancer Oil Pump Rebuild Kit ATV

Hot Rods +3mm Stroker Crank Balancer Oil Pump Engine Rebuild Kit Yamaha YFZ450 Carb

📖 Product Description

Build a stronger, more reliable Yamaha YFZ450 carb model engine with this comprehensive Hot Rods +3mm stroker crankshaft, counter balancer, oil pump upgrade, and engine rebuild kit. Designed for all carbureted YFZ450 years and models, this package combines the critical bottom-end, lubrication, cooling, bearing, gasket, and sealing components needed for a performance-focused rebuild.

At the heart of the kit is a Hot Rods +3mm stroker crankshaft with connecting rod, providing increased stroke while retaining compatibility with the stock piston, cylinder, and cam chain. The kit also includes a crank counter balancer shaft, counter balancer bearings, main bearings, and an 07+ aftermarket oil pump upgrade with rotor set and oil squirter to support dependable engine lubrication.

A complete gasket kit, MLS head gasket, engine seal kit, Viton valve stem seals, K&N oil filter, and upgraded water pump components help make this a highly complete YFZ450 engine rebuild package. Best of all, the stroker crank installation requires no case or cylinder head modifications.

🔥 Key Features & Benefits

• Hot Rods +3mm stroker crankshaft provides increased stroke for a performance-oriented YFZ450 engine build
• Connecting rod included as part of the Hot Rods crankshaft assembly
• No case or head modifications required for installation
• Works with the stock piston, cylinder, and cam chain for a straightforward stroker configuration
• Crank counter balancer shaft and bearings provide the essential components for servicing the engine balancing system
• 07+ style aftermarket oil pump upgrade improves the rebuild package with upgraded lubrication components
• Oil pump rotor set and oil squirter included for a more complete lubrication-system rebuild
• MLS head gasket provides durable multi-layer steel cylinder-head sealing
• Viton valve stem seals provide durable high-temperature valve sealing
• Upgraded water pump shaft with billet impeller services critical engine cooling components during the rebuild
• Complete gasket and engine seal kits provide extensive sealing coverage for engine assembly
• 1-year limited warranty for manufacturer material or workmanship defects*

📦 Product Contents

• Hot Rods +3mm stroker crankshaft with connecting rod
• Crank counter balancer shaft
• Counter balancer bearings
• Main crankshaft bearings
• 07+ aftermarket oil pump upgrade
• Oil pump rotor set
• Oil squirter with O-ring
• K&N oil filter
• Complete engine gasket kit
• MLS cylinder head gasket
• Complete engine seal kit
• Viton valve stem seals
• Water pump shaft with upgraded billet impeller
• Water pump bearing

✅ Compatibility

This Hot Rods +3mm stroker crank engine rebuild kit is designed for all Yamaha YFZ450 carbureted models and years. It is intended for the original carb-model YFZ450 engine platform rather than the later fuel-injected YFZ450R/YFZ450X platform.

• Vehicle: Yamaha YFZ450
• Fitment: All carbureted YFZ450 years and models
• Crankshaft: Hot Rods +3mm stroker crank with connecting rod
• Piston Compatibility: Works with stock piston
• Cylinder Compatibility: Works with stock cylinder
• Cam Chain Compatibility: Works with stock cam chain
• Machining: No case or cylinder head modifications required

❓ FAQ

• Q: Does this kit fit all carbureted Yamaha YFZ450 models?

  A: Yes. This kit is designed for all Yamaha YFZ450 carbureted model years and models.

• Q: How much additional stroke does the crankshaft provide?

  A: The included Hot Rods crankshaft is a +3mm stroker crank supplied with the connecting rod.

• Q: Do I need to modify the engine cases or cylinder head?

  A: No. This +3mm stroker crank setup requires no case or cylinder head modifications.

• Q: Can I use my stock piston and cylinder with this crankshaft?

  A: Yes. The crankshaft is compatible with the stock piston and stock cylinder.

• Q: Can I retain the stock cam chain?

  A: Yes. The +3mm crankshaft will work with the stock YFZ450 cam chain.

• Q: Does the kit include an upgraded oil pump?

  A: Yes. The package includes an 07+ aftermarket oil pump upgrade, oil pump rotor set, and oil squirter with O-ring.

• Q: Are counter balancer components included?

  A: Yes. The kit includes a crank counter balancer shaft along with counter balancer bearings.

• Q: Does this kit include water pump components?

  A: Yes. A water pump shaft with upgraded billet impeller and water pump bearing are included.

• Q: Is this kit covered by a warranty?

  A: The kit includes a 1-year limited warranty from the manufacturer for material or workmanship defects, subject to the terms below.*

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. We specialize in premium ATV and motocross engine components trusted by riders and builders nationwide. Our kits combine industry leading brands when applicable to deliver reliability and performance you can trust. Trust BPRATV to keep your Yamaha YFZ450 running at its best, every single time.

Build your YFZ450 with a Hot Rods +3mm stroker crank, upgraded oiling, balancer, and cooling components -- order your complete rebuild kit today!

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© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.* Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.

This product is exempt from the emission standards and related requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code§§ 27156 and 38391]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public.