How to Change Polaris RZR Transmission & Gearcase Fluid  

Polaris recommends changing the transmission and gearcase fluids in your Polaris RZR 900S every 100 hours or every 1,000 miles. 

In this guide, we'll show you how to change both the transmission and gearcase fluids in a matter of minutes.  

Tools and Parts Needed - Polaris RZR Transmission & Gearcase Fluid Change 

Tools

  • 3/8 ratchet and extensions
  • 8mm Allen
  • Catch pan
  • Jug pump
  • Hose

The Polaris RZR 900S uses Demand Drive fluid in the front gearcase and AGL gearcase lubricant in the rear transmission. Make sure you have both types ready before you start working on your UTV, and be careful not to use the wrong lubricant in the wrong drive unit.

NOTE: When changing the transmission and gearcase fluids on a Polaris RZR 900S, always have your vehicle parked on a level surface. If your RZR isn't level, you won't be able to accurately refill the fluids with the correct amounts.

Polaris RZR 900S Front Gearcase Lubricant Change

Step 1. Remove the front gearcase fill plug, which is located on the right-hand side next to the driveshaft. Removing the fill plug helps the gearcase lube drain out better.

Polaris RZR front gearcase lubricant

Step 2. Remove the front gearcase drain plug, which is located on the underside of the gearcase. Have a drain pan ready to catch the used oil.

Polaris RZR front gearcase lube change

Step 3. Clean off any metal debris from the magnetic drain plug and inspect the O-ring for signs of wear. Replace the O-ring if necessary.

Polaris RZR front gearcase fluid drain plug

Step 4. Reinstall the gearcase drain plug and torque it to 10 foot-pounds.

Polaris RZR 900S front gear case lubricant change

Step 5. Fill the gearcase with Polaris Demand Drive fluid until it reaches the level of the fill hole.

PRO TIP: A jug pump and length of hose make refilling the gear case much easier.

Front gearcase fluid change Polaris RZR 900S

Step 6. Reinstall the gearcase fill plug and torque it to 10 foot-pounds.

Front gearcase lube change Polaris RZR

Polaris RZR 900S Transmission Fluid Change

Step 1. Remove the transmission fill plug, which is located at the rear of the transmission case. Removing the fill plug helps the transmission fluid drain better.

Polaris RZR transmission fluid change

Step 2. Remove the transmission drain plug, which is located on the underside of the transmission case. Have a drain pan ready to catch the old fluid.

Polaris RZR 900S transmission fluid change

Step 3. Clean off any metal debris from the magnetic drain bolt and inspect the O-ring for signs of wear. Replace the O-ring if necessary.

Step 4. Reinstall the transmission drain bolt and torque it to 14 foot-pounds.

Step 5. Fill the transmission case with Polaris AGL gearcase lubricant until it reaches the level of the fill hole.

PRO TIP: Just like the gearcase, a jug pump and length of hose make refilling the transmission with fluid easier.

Transmission fluid change Polaris RZR 900S

Step 6. Reinstall the transmission fill plug and torque it to 14 foot-pounds.

Polaris 900 S RZR transmission fluid change

Since you're changing fluids on your RZR, why not go ahead and change the oil too? Watch the video below to learn how to change the oil on a Polaris RZR 900S.

 

Why Partzilla?

Commercial Discounts

Special discounts for companies in the powersports industry

Details

Government Sales

Discounts for federal and most state and municipal agencies

Details