Description
Send Your Kawasaki Ultra 310LX-S Engine to REV6
When your 2022-2026 Kawasaki Ultra 310LX-S needs major engine work, send the original core to REV6 for rebuilding. Our team evaluates the engine first and then completes the machining, cylinder work, bottom-end service, cylinder head rebuild, and final assembly required for your core.
Just as important, the completed engine goes through another inspection before shipment. Your rebuild also includes a standard 1-year no-fault warranty, with an optional 2-year no-fault warranty upgrade available.
What Your Ultra 310LX-S Rebuild Covers
Bottom End & Cylinder Service
- Full inspection of the engine core
- Crankcase assembly inspected
- Crankshaft assembly inspected and rebuilt
- New high-babbitt crankshaft bearings
- Cylinders bored and honed to the next oversize, re-sleeved, or Nikasil replated as needed
- New pistons, rings, and wrist pins
- Mating surfaces decked and resurfaced for proper sealing
Cylinder Head & Timing
- Cylinder head rebuilt
- Valve guides inspected and replaced as needed
- Valves and valve seats recut or refaced, then checked with a vacuum test
- Camshafts cleaned, inspected, and polished
- Timing chain checked for stretch and wear, then replaced as needed
Assembly & Final Checks
- New gaskets and oil seals
- Bearings cleaned and inspected, then replaced as needed
- Engine assembled by an experienced REV6 technician
- Completed engine inspected before shipment
- A second technician checks the finished build for added quality control
Please note: The list above covers our standard rebuild process. However, core condition varies. As a result, the exact parts and work may differ based on what your engine requires.
What Happens After You Place Your Order?
Core Shipping Instructions
After you order, our team will follow up with the instructions needed to send your Ultra 310LX-S engine core to REV6. This keeps the next step clear and gives you the information needed to prepare your core for shipment.
Rebuilt, Checked & Shipped Back
Once the rebuild is complete, the engine goes through its final checks before return shipment. We will also provide tracking information when your rebuilt engine ships.
After installation, review the REV6 Engine Break-In Procedure Guide and follow the recommended procedure before returning to normal use.
Fitment
Kawasaki Ultra 310LX-S Jet Ski
Fits Kawasaki Ultra 310LX-S Jet Ski models from 2022 through 2026. Please verify your model and year before ordering.
Warranty, Financing & Next Steps
Standard and Extended Warranty Coverage
Your engine comes with the REV6 1-year no-fault warranty. Additionally, an optional 2-year no-fault, no-questions-asked warranty upgrade is available for customers who want longer coverage.
Financing Available
A major engine repair can be a significant purchase. For more flexibility, review REV6 financing options available to qualified buyers.
Get Your 310LX-S Engine Rebuild Underway
Place your order and our team will follow up with the core shipping instructions. Need to confirm something first? Contact REV6 for help with fitment, your engine core, warranty choices, or the rebuild process.













