Jeep Transfer Case Fluid Type: Everything You Need to Know!
Transfer case fluid is so important to function the car properly. However, you need to select the fluid according to the type of transfer case. All fluids are not suitable for all transfer cases.
So, what is the Jeep transfer case fluid type?
Jeep transfer case fluid types are ATF (Dexron III or higher), Mopar lubricant, and ATF+4. ATF (Dexron III or higher) is a suitable fluid for NP 119, 207, 208, 219, 228, 229, 241, 242, and 249 transfer cases. Then, NP 247 transfer case requires MOPAR transfer case lubricant (5016796AA superseded by 5016796AC). Moreover, Jeep NP 231, 241, and 241-OR need ATF+4 fluid type.
Let’s walk through the whole article to know the transfer case along with the fluid type. Also, you’ll get to know the appropriate process of changing fluid.
Jeep Transfer Case Fluid Type
The transfer case fluid plays a crucial role in lubricating the transfer case components. If the fluid leaks out or becomes contaminated, it loses its lubricating properties, which can lead to significant damage to the transfer case.
Just like different types of coolants such as ms 12106 and ms 90032, the fluids of transfer cases also vary. So, it’s important to find out the correct fluid type for the exact type of transfer case.
Let’s get to know the fluid type according to the type of transfer case.
ATF (Dexron III Or Higher):
The ATF (Dexron III or higher) is a type of fluid used for both automatic transmission and power steering systems. It is the most commonly used hydraulic fluid in automatic transmissions and transfer cases.
Jeep has transfer cases NP119, 207,208,219, 228, 229, 241, 242, and 249 which are the most common transfer cases that use this fluid.
| Jeep Transfer case | Jeep Model |
| NP119 | Jeep Wagoneer, Cherokee Grand, Cherokee 1980-1991 |
| NP207 | YJ Wrangler, Jeep Cherokee XJ (1984-87) |
| NP208 | Jeep Cherokee(1980-83), J-truck (1980-86) |
| NP219 | Jeep Wagoneer and Cherokee (1980-82) |
| NP228 | FSJ and XJ Jeeps, (1980-91) |
| NP229 | FSJ and XJ Jeeps (1980-91) |
| NP241 | Jeep Wrangler |
| NP242 | XJ Cherokee, ZJ Grand Cherokee, WJ Grand Cherokee, and KJ Liberty |
| NP249 | Grand Cherokee ZJ |
ATF (Dexron III or higher) has specific additives that are designed to provide lubrication, protect against wear and tear, and help with shifting. Also, it comes with high viscosity index which means it maintains its thickness and lubricating properties.
This oil is perfect for those transfer cases that go through high and low temperatures during operation. The use of ATF in a transfer case can provide improved shifting performance and smoother operation, especially in cold weather conditions.
MOPAR Transfer Case Lubricant (5016796AA superseded by 5016796AC):
MOPAR transfer case Lubricant is specially formulated to provide superior lubrication. It’s a synthetic blend lubricant that is designed to meet the unique requirement of transfer cases like NP245, NP247, and NP249.
| Jeep Transfer Case | Fluid Type |
NP245 | MOPAR Transfer Case Lubricant (5016796AA superseded by 5016796AC) |
| NP247 | |
| NP249 |
As a matter of fact, the manufacturers themselves suggest using this lubricant for Jeep vehicles, especially Jeep Wranglers. it’s able to provide enough protection against wear and tear.
Also, it offers affordable and reliable replacement transfer case lubricants that are available in various formulations to help keep your Mopar truck in excellent condition.
By using genuine OEM Mopar transfer case fluid, you can get a dependable performance and keep your Mopar running at its best.
ATF+4 Transfer Case Fluid:
ATF+4 belongs to ATF categorical lubricant with the latest superior formula to traditional ones. It is a synthetic fluid that has specific additives that are designed to provide excellent performance.
They also provide protection for modern automatic transmissions, including improved shifting performance, enhanced oxidation resistance, and reduced wear and tear.
| Jeep Transfer Case | Fluid Type |
| NP231 | ATF+4 |
| NP241-OR | |
| NP241 |
These fluids are specially used in the Jeep Wrangler models with transfer cases like NP231 or NP241. Check the following table for specific fluids with respect to the model year of your Jeep Wrangler.
| Vehicle Models | Transfer Case Fluid |
| 2018-2023 Jeep Wrangler | Jeep Wrangler Transfer Case Differential Fluid Change Kit – 2018-23 M220 Eurol |
| 1997-2017 Jeep Wrangler SUV | Jeep Wrangler Transfer Case Differential Fluid Change Kit 1997-17 RAVENOL |
Now that you have a clear understanding about the various transfer case fluids, let’s have a look at changing old fluid with fresh one.
How To Change Transfer Case Fluid
The transfer case fluid can become contaminated with dirt, debris, and metal shavings that can cause damage to the internal components. Also, it reduces the effectiveness of the lubricant.
This can lead to increased friction and wear on the gears and bearings, which can eventually cause the transfer case to fail. Then, old transfer case fluid may not be able to effectively dissipate heat which leads to an increased operating temperature that can further damage the internal components.
So, it’s important to know to change the transfer case fluid very often. Let’s get to know how you can do it simply without facing any hassle.
Required tools:
Here are the tools needed for this job;
- Transfer case fluid
- Drain pan
- Extraction syringe
- Wrenches
- Ratchet
- Wheel chocks
Procedure:
Follow these step-by-step procedures to do the work properly.
Step 1: Get the Vehicle Ready
First, you need to ensure that the vehicle has been allowed to cool for a minimum of two hours to avoid handling hot fluids. Then, once the vehicle cooled, engage the parking brake and place a wheel chock or block in front of and behind at least one wheel.
Step 2: Remove the Old Fluid
At this point, you need to drain the old fluid. Usually, the drain and refill plugs are located close to the rear of both the transfer case and the vehicle.
So, the lower plug is designed to drain the fluid, while the higher plug is intended for filling purposes. To begin, take off the fill plug before removing the drain plug. Let the fluid to ditch for as long as possible in order to draw out the maximum amount of old fluid.
Step 3: Put the Drain Plug Back in Place
Now, you need to reinstall the drain plug, once the fluid has removed totally also ensure that fill plug out. One thing you should remember is that certain fluid bottles are equipped with a spout top that allows for the fluid to be squeezed out through it.
If there isn’t adequate space beneath your vehicle to access the fill plug, the recommended filler/extraction syringe can prove to be quite useful.
Step 4: Refill the transfer case
Now, you should proceed to refill the transfer case. Remember that there is no dipstick to check the fluid level. So, the general rule is to fill the transfer case until the fluid overflows.
You must utilize either the fluid bottle top or syringe to fill the fluid into the filler plug hole until the fluid begins to run out.
Step 5: Wipe Out Excess Fluid
Next, put the fluid fill plug back into place and wipe away any surplus fluid from the transfer case. Properly dispose of the used fluid by taking it to a local auto parts store, which often offers free recycling of used oil and fluids.
For more on this, here is a video guide;
Don’t hesitate to contact your mechanic, if your four-wheel or all-wheel drive vehicle requires a transfer case service.
Frequently Asked Questions (FAQs):
When does transfer case fluid need to be changed?
When you hear a loud noise while driving, it’s time to change the transfer case fluid. Because when the transfer case fluid loses its ability to lubricate properly, friction can occur, leading to noticeable grinding noises. These noises may become even louder when four-wheel drive is engaged.
Do transfer cases leak oil?
Yes, in transfer cases oil can leak oil sometimes. Mostly, it happens due to a faulty seal or an issue within the case. Then, a damaged output shaft seal is can let this happen, since it’s responsible for connecting the transfer case to the axle. Also, damaged gaskets or cracks in the housing can lead to this happening.
How long does transfer case fluid last?
Normally, you should check your fluid after driving every 30,000 miles to see if there is any fluid left or if it’s dirty or not which requires replacement. Also, howling, whirring, clicking, clunking, bagging or rumbling noises are signs that you need to change the transfer fluid case.
Conclusion
Hopefully, this article fulfills your every quire regarding Jeep transfer case fluid type. Choosing the right fluid according to the transfer case is important to ensure the appropriate functionality of your jeep. This article will help to get a vivid idea about the fluid type for each transfer case.
