Description
Professional Bobcat 2100 400cc Engine Rebuild Service
If your 2002–2009 Bobcat 2100 400cc engine has lost power, developed internal damage, or reached the end of its service life, REV6 offers a professional Build Core engine rebuild service designed to restore dependable performance. Additionally, experienced REV6 technicians remanufacture every engine using quality replacement components and proven rebuilding procedures.
Before shipment, our quality control team carefully inspects every completed engine. As a result, you receive a professionally remanufactured engine that’s ready for installation and backed by our warranty.
Product Highlights
- Engine Type: Build Core Remanufactured Engine
- Engine: 400cc Gas
- Fits: Bobcat 2100 (2002–2009)
- Compatible Serial Numbers: See list below
- Core Required: Yes
- Core Charge Option: $800 Refundable Core Charge Available
- Warranty: 1-Year No-Fault Warranty Included
- Optional Coverage: 2-Year No-Fault Warranty Available
- Financing: Available
- Shipping: Nationwide
Compatible Serial Number Ranges
- 522711001 & Above
- 524411001 & Above
How the Build Core Process Works
This engine is available as a Build Core service. After placing your order, send your rebuildable Bobcat 2100 engine to REV6. Next, our technicians inspect your engine and begin the remanufacturing process. Once the rebuild is complete, our quality control team performs a final inspection before shipping your engine back, ready for installation.
Our Engine Rebuild Process
Every Bobcat 2100 400cc engine follows a detailed rebuild process focused on long-term reliability. Throughout the rebuild, our technicians inspect critical components, machine reusable parts when appropriate, and install quality replacement components as needed.
- Complete inspection of your rebuildable engine core
- Crankshaft and connecting rod assembly inspected for wear and serviceability
- Cylinder bore restored and crosshatched to prepare for new pistons
- New pistons and piston rings installed
- Complete gasket kit installed
- New oil seals installed throughout the engine
- Valve guide seals replaced
- Valves serviced and valve lash adjusted to manufacturer specifications
- Engine assembled to manufacturer specifications
- Final quality control inspection before shipment
Because every engine core is different, the rebuild process may vary depending on the condition of your engine.
Core Requirements & Exchange Options
A rebuildable engine core is required for this service. However, you can send your engine core to REV6 before rebuilding begins or choose the refundable $800 core charge option if you need an engine shipped first.
- Send your engine core first to begin the rebuild process.
- Choose the $800 refundable core charge option for advance shipment.
- Receive a full refund after your returned core passes inspection.
- Core exchange is available for qualifying customers.
If you have questions about your engine before shipping, Contact REV6.
Warranty & Customer Support
Every remanufactured engine includes our 1-Year No-Fault Warranty. Additionally, you can upgrade to our optional 2-Year No-Fault Warranty for even more protection.
Review complete coverage on our Warranty Policy. Financing is also available through our Financing page.
Need Bobcat Engine Parts?
If your engine only needs replacement components instead of a complete rebuild, browse our selection of Bobcat engine parts and rebuild kits. You can also compare rebuild options by reading our Engine Rebuild Kit Guide.
Get Your Bobcat Back to Work
Your Bobcat 2100 is built for demanding work, so your engine should be ready to do the same. Therefore, let REV6 professionally remanufacture your engine and help keep your utility vehicle running reliably for years to come.
Place your order, send in your engine core, and let REV6 handle the rebuild.













