Description

Bobcat 2100S 400cc Engine Rebuild for 2002–2009 Models

This rebuild service covers Bobcat 2100S gas engines (2002–2009). If your engine shows wear or loss of performance, this process brings it back.

Compatible Serial Number Ranges

• 522711001 & above
• 524411001 & above

Engine Features & Rebuild Process

• Core Inspection: Each core receives a full evaluation before rebuild work begins
• Crankshaft & Rod Assessment: Internal components support smooth operation because technicians verify mechanical integrity
• Cylinder Bore Restoration: Cylinder bores are trued and crosshatched, then prepared for new pistons
• New Pistons & Rings: New components restore compression and reduce friction
• Complete Gasket Kit: Fresh gaskets seal all surfaces, so leaks stay under control
• New Oil Seals: New seals improve protection against oil loss and heat
• Valve Guide Seals: Updated seals improve oil control and extend engine life
• Valve & Head Service: Valves are ground and lash is set precisely, which supports better efficiency

Note: This is a generalized rebuild process and may include more or less, depending on your engine condition and core.

Quality Control & Inspection

Each engine moves through multiple inspection stages before leaving the shop. Because every step gets checked carefully, the finished engine performs consistently and holds up over time.

After passing quality control, your engine ships back ready for installation. Experienced technicians oversee each stage, so build quality stays consistent from start to finish.

Core Options

To receive your REV6 engine, you must send in your old core or pay a refundable $800 core charge.

• Send in Your Core First: Ship your engine to REV6 so inspection and rebuild work can begin
• $800 Refundable Core Charge: Pay the core charge to receive your rebuilt engine
• Full Refund: If your returned core meets inspection standards, the full $800 is refunded
• Core Exchange Option: For qualifying customers, an engine can be shipped first before sending your core

To confirm your core condition or review your options, visit the contact page.

Warranty & Support

This rebuild includes a 1-year no-fault warranty. In addition, a 2-year no-fault warranty upgrade is available for added protection.

Review full coverage details in the warranty policy or browse more parts and upgrades in the Powersports Shop.

Take Action

Don’t let a worn engine keep your machine out of service. Instead, rebuild it the right way and get back to running strong. Order today and get the process started.