Description
Kawasaki Mule 4000 Engine Rebuild Service
At REV6 Powersports, we know engines. We have years of professional experience with stock and performance engine rebuilds, so you can work with the best when it comes to your engine. We guarantee your rebuilt engine will be as good as new. We stand behind our engines with a 1-year warranty guaranteeing our work.
What You Get:
- Full Core Inspection – Every component carefully reviewed to ensure a strong foundation for rebuilding.
- Cleaned and blasted engine cases, fully inspected for cracks and straightness.
- Crankshaft & Rod Inspection – Critical parts measured and checked for strength and longevity, refurbished to OEM specs.
- Cylinder Bore Servicing – Trued, straightened, and crosshatched for optimal piston seal and performance.
- New Piston & Rings – Replaced with fresh components to restore compression and efficiency.
- New Gasket Kit – Ensures leak-free operation and long-lasting durability.
- New Oil Seals – Protects against leaks and keeps oil where it belongs.
- New Valve Guide Seals – Built to handle high heat while maintaining performance.
- Complete Valve & Head Service – Valves precision-ground, lash set, and head fully serviced for proper operation.
Our Commitment to Quality:
We provide a Double Inspection Guarantee. Your engine will be assembled by one master technician and then inspected by another to ensure it’s as good as new. This rigorous process ensures every part, engine, and transmission goes through a strict quality assurance process. We are committed to delivering superior craftsmanship and reliability.
Core Requirement:
CORE REQUIRED OR REFUNDABLE CORE CHARGE BEFORE WE CAN SHIP OUT YOUR NEW ENGINE
To receive your REV6 engine, you will need to provide your old core or pay a refundable core charge. If your core is in good condition, we will refund the charge in full. You can also contact us to confirm if your core qualifies or to arrange an exchange that avoids the upfront charge.
Supporting Your Project:
At REV6, our resources are designed to support your rebuild from start to finish. Our FAQ page can answer many of your questions quickly, and our rebuild kit guide helps you select the right components for your machine. In addition, we extend a token of our appreciation with veterans’ and servicemen’s discounts.
If you need technical advice, our expert team is ready to help; simply contact us. You can also explore our flexible payment options and get the details of our Core Exchange Program. For a wealth of detailed information, our Help Center is available to you. Thank you for choosing REV6. We are passionate about what we do, and we’re here to help you get the most out of your machine.






















