Hot Rods 4421 Stroker Crankshaft for Polaris RZR XP 900

The Hot Rods 4421 Stroker Crankshaft is a high-quality replacement crankshaft designed for select Polaris RZR XP 900 applications. It provides a dependable alternative to a costly OEM crankshaft while delivering the performance, durability, and serviceability expected from Hot Rods components. This complete crankshaft assembly is supplied ready for installation with proven Hot Rods connecting rods, top-end bearings, and crankshaft webs.

Factory assembled and trued to OEM specifications, the Hot Rods 4421 crankshaft is engineered to meet or surpass OEM standards for performance and durability. As a stroker crankshaft, it increases engine stroke to help produce greater displacement and horsepower. The drop-in design requires no modification in most applications and uses the stock piston in most applications. CNC machining and dynamic balancing help accommodate the increased stroke and support smooth, reliable engine operation. The crankshaft can also be matched with Cylinder Works Big Bore cylinders for additional displacement and horsepower gains.

Built for long-term service, this crankshaft is fully rebuildable using genuine Hot Rods connecting rods and bearings. Its gears are manufactured to a quality level of DIN Class 9 or higher for precise, dependable operation. Manufacturer part number 4421 and vendor part number 4421 identify this Hot Rods replacement component.

Fitment includes the 2011 Polaris RZR XP 900, 2012 Polaris RZR XP 900, 2011 Polaris RZR XP 900 LE, 2012 Polaris RZR XP 900 LE, and 2012 Polaris RZR XP 4 900. Verify vehicle year, model, and engine configuration before installation.

Features:

• Complete Hot Rods stroker crankshaft assembly ready for installation
• Premier alternative to a costly OEM crankshaft
• Factory assembled and trued to OEM specifications
• Increased stroke helps increase displacement and horsepower
• Drop-in replacement design requires no modification in most applications
• CNC machined and dynamically balanced for the increased stroke
• Uses the stock piston in most applications
• Fully rebuildable with genuine Hot Rods connecting rods and bearings
• Includes Hot Rods connecting rods, top-end bearings, and crankshaft webs
• Gears manufactured to DIN Class 9 or higher quality standards
• Can be paired with Cylinder Works Big Bore cylinders for additional displacement and horsepower gains
• Fits 2011-2012 Polaris RZR XP 900, 2011-2012 Polaris RZR XP 900 LE, and 2012 Polaris RZR XP 4 900
• Brand: Hot Rods
• Manufacturer part number: 4421
• Vendor part number: 4421