1999 Jeep Wrangler Transfer Cases

Name: NP231 Transfer Case Selector Shaft O-Ring
Brand: Omix
SKU: 18676.33
Price: 4.99 USD

Keep Your 1999 Jeep Wrangler in Top Shape with Quality Transfer Cases

Whether you’re repairing or upgrading your Transfer Case, using high-quality parts is key to keeping your 1999 Jeep Wrangler looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transfer Case Switches, Transfer Case Output Shaft Seals, and Input Shaft Bearings. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Transfer Cases from Trusted Brands

Looking for a reliable Transfer Case? We’ve got you covered with options from brands you know and trust like National and Omix. For example, National Transfer Cases start at just $15.29 with an average 4.3 star rating. Omix offer similar pricing and quality, backed by strong customer feedback. With over 60 reviews and a solid 5 star average, you can shop with confidence knowing other Jeep Wrangler owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Jeep Wrangler Transfer Case at Advance Auto Parts is around $160.57, with a range that starts at $1.99 and goes up to $1,734.99. With 61 options in stock from 11 trusted brands, finding the right fit is easy. Popular picks like OE Replacement, Bearings, and With Boots And Seals start at just $1.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Transfer Case, don’t forget to check out other key components like 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1999 Jeep Wrangler in peak condition, inside and out.

Looking for the perfect Transfer Case for your 1999 Jeep Wrangler? You’re in the right place. Below, you’ll find links to various types of Transfer Cases that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Transfer Cases, ensuring durability and a precise fit for your Jeep Wrangler. Whether you’re driving a 1999 model or another popular model year like 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022, we’ve got you covered. Purchasing Transfer Cases from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Transfer Cases that fit your vehicle.

Essential 1999 Jeep Wrangler Transfer Cases

from

$4.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

OE Style
Direct Fit

from

$2.29

Is your AX4, AX5, or AX15 transmission not shifting right? Do you cringe from the grinding noises when you shift? Omix-ADA has the internal parts you need to fix your Jeep’s transmission. Fix it and enjoy your ride.

Product Features:

Steel
OE Style
Direct Fit
Limited 5 Year Warranty

from

$17.99

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

Premium bearing design matches OEM specifications
Precision manufactured using premium-grade steel for outstanding durability and performance
Available in both caged design and full complement
Industry leading coverage
Professional technicians know they can depend on National

from

$186.99

Crown Automotive continues to be the leader in quality replacement parts for Jeep(R) vehicles. Crown has the largest stock of replacement parts for Jeep(R) vehicles, including factory discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission And transfer case components. Crown Automotive also offers an exclusive line of component kits And accessory products.

Product Features:

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

from

$104.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

OE Style
Direct Fit

from

$13.29

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

Premium bearing design matches OEM specifications
Precision manufactured using premium-grade steel for outstanding durability and performance
Available in both caged design and full complement
Industry leading coverage
Professional technicians know they can depend on National

from

$8.49

For use with 18676.60 only. Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA. Limited five year Manufacturer’s warranty.

Product Features:

For Use w/ 18676.60 only
Limited 5 Year Warranty

from

$297.99

Crown Automotive offers the largest line of replacement parts for Jeep(R), as well as a growing line of parts for Chrysler and Dodge. Our applications include Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.

Product Features:

Eliminates Drive Line Vibrations And Increases Strength
Engineered To Function With The Factory Speedometer Sensor/Cable And Vacuum Shift Sensor
Installation Can Be Performed With The Transfer Case In Or Out Of The Vehicle With Basic Hand Tools
Limited 12 Month Or 12,000 Mile Warranty

from

$13.79

Tired of looking at the stains on your driveway? Gaskets are a cheap solution to prevent or stop leaks. Omix-ADA offers high quality replacement gaskets designed specifically for your Jeep.

Product Features:

OE Style
Direct Fit
Front
Limited 5 Year Warranty

from

$1.99

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

from

$20.99

Is your NP231 transfer case not shifting right? Do you cringe from the grinding noises when you shift? Omix-ADA has the NP231 internal parts you need to fix your Jeep’s transfer case. Fix it and enjoy your ride.

Product Features:

OE Style
Direct Fit

from

$56.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$6.99

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

from

$99.99

OE Style
Direct Fit
Limited 5 Year Warranty

from

$38.49

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool
Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

from

$8.49

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$17.99

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$209.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

OE Style
Direct Fit

from

$114.99

This transfer case shift linkage is designed to match the fit and function of the original linkage on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this transfer case shift linkage is designed to match the fit and function of the original linkage on specified vehicles.
Restores functionality – reliable replacement for an original linkage that has failed due to worn bushings
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$16.99

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

from

$6.99

OE Style
Direct Fit

from

$302.99

OE Style
Direct Fit

from

$11.29

CUP

from

$15.29

CUP

from

$7.29

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$1478.99

Evolution Driveline products, are remanufactured to meet or exceed OEM specifications for quality, fit, and performance. Every transfer case we sell passes a comprehensive battery of tests on our computerized test center. We recreate actual driving conditions and analyze performance before the product even leaves the factory, so you can buy with confidence.

Product Features:

Back Lash, Mesh Load, Leak and Rotational Torque QC testing performed on each unit.
OEM cores are processed as individual units throughout the tear down and assembly process
Cores cleaned using our Hydro Blast cleaning and rinse process
All case halves wet sanded to ensure perfect mating surfaces
Loctite gasket eliminator and primer used to seal all aluminum mating surfaces
Remanufactured in our ISO9001:2008 USA facility.
Without Motor

from

$1478.99

Back Lash, Mesh Load, Leak and Rotational Torque QC testing performed on each unit.
OEM cores are processed as individual units throughout the tear down and assembly process
Cores cleaned using our Hydro Blast cleaning and rinse process
All case halves wet sanded to ensure perfect mating surfaces
Loctite gasket eliminator and primer used to seal all aluminum mating surfaces
Remanufactured in our ISO9001:2008 USA facility.
Without Motor

from

$1384.99

Back Lash, Mesh Load, Leak and Rotational Torque QC testing performed on each unit.
OEM cores are processed as individual units throughout the tear down and assembly process
Cores cleaned using our Hydro Blast cleaning and rinse process
All case halves wet sanded to ensure perfect mating surfaces
Loctite gasket eliminator and primer used to seal all aluminum mating surfaces
Remanufactured in our ISO9001:2008 USA facility.
Without Motor

Popular 1999 Jeep Wrangler Transfer Cases Categories

Transfer Case Shift Linkages

Transfer Case Assemblies

Transfer Case Control Levers

Transfer Case Shift Lever Bushings

Input Shaft Pilot Bearings

Transfer Case Output Shaft Seals

Input Shaft Bearings

Transfer Case Overhaul Kits

Transfer Case Drive Chains

Transfer Case Switches

Transfer Case Output Shaft Bearings

Transfer Case Differential Bearings

Bearing and Seal Overhaul Kits

Transfer Case Housing Extensions

Transfer Case Input Shafts

Input Shaft Seals

Transfer Case Components

Oil Pump Housing Seals

Transfer Case Shift Fork Inserts

Output Shaft Pilot Bearings

Transfer Case Seals

Transfer Case Slip Yoke Eliminator Kits

Transfer Case Output Shafts

Transfer Case Bearings

Transfer Case Oil Pumps

Transfer Case Slip Yoke Eliminator Seal Kits

Transfer Case Selector Shaft Seals

Transfer Case Output Shaft Washers

Best-Selling 1999 Jeep Wrangler Transfer Case Output Shaft Seals

Upgrade your Wrangler with one of our 5 best-selling Transfer Case Output Shaft Seals, earning an average 5 stars rating across 1 reviews.

show more show less

from

$17.99

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$24.29

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$14.99

Service oil seal for the Rugged Ridge Mega Short SYE (Slip Yoke Eliminator) Kit PN: 18676.72.

Product Features:

Easy to Install
OE Style
Single
Direct Fit
Limited 5 Year Warranty

from

$12.29

OE Style
Direct Fit
Front

from

$10.99

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

Top-Quality Input Shaft Bearings for 1999 Jeep Wranglers

Choose a high-quality OEM or aftermarket Input Shaft Bearing for Jeep Wranglers and enjoy top-notch performance from $8.29.

show more show less

from

$15.49

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

Premium bearing design matches OEM specifications
Precision manufactured using premium-grade steel for outstanding durability and performance
Crowned raceways and rollers to ensure even load distribution for maximum life
Industry leading coverage
Professional technicians know they can depend on National

from

$8.29

OE Style
Direct Fit

from

$181.99

Is your AX5 transmission not shifting right? Do you cringe from the grinding noises when you shift? Omix-ADA has the AX5 internal parts you need to fix your Jeep’s transmission. Fix it and enjoy your ride.

Product Features:

Front
OE Style
Direct Fit

Top Picks for 1999 Jeep Wrangler Input Shaft Seals

Invest in one of our 5 durable Input Shaft Seals for your 1999 Ford, knowing you’re getting trusted brands and expert craftsmanship.

show more show less

from

$15.29

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$17.99

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

from

$13.99

TCaseInputShaftSeal

from

$13.29

SHAFT SEAL

from

$2.99

Seal

Our Transfer Case Shift Lever Bushings for 1999 Jeep Wranglers

Make a smart move for your 1999 Jeep Wrangler with our Transfer Case Shift Lever Bushing for $1.99.

show more show less

from

$1.99

Leading Manufacturer Of Quality Replacement Parts For Jeep
Meets Standards For Quality
Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts And Exceptional Service
Improve The Performance
Easy Installation

Top-Rated Transfer Case Brands For Your 1999 Jeep Wrangler

When it comes to finding the perfect Transfer Case for your 1999 Jeep Wrangler, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 11 trusted brands. We carry the most popular Transfer Case brands including Omix and National, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $15.29. Purchasing a Transfer Case from us here at Advance Auto Parts is a smart move for both you and your 1999 Jeep Wrangler, providing peace of mind with parts that meet or exceed OEM standards.

Popular Omix 1999 Jeep Wrangler Transfer Cases

If you’re looking for a top-quality Transfer Case for your 1999 Jeep Wrangler, Advance Auto Parts has exactly what you need with our selection of Omix Transfer Cases. We have 1 Omix Transfer Cases in stock for this fitment, all known for their durability and precision fit. With prices starting at just $226.99, you’ll find the perfect Transfer Case for your needs and budget. Omix Transfer Cases for the 1999 Jeep Wrangler come highly rated, with over 1 customer reviews and an impressive average rating of 4.4 stars. Choosing a Omix Transfer Case from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $226.99

(1)

Chain; Transfer Case; Model 231/241; 87-17 Jeep

“Transfer case drive chain went it easily and is sooo much better than the old one. Really made a difference in the shifting. Great product and figment”

Top-Quality National 1999 Jeep Wrangler Transfer Cases

For those in search of a high-quality Transfer Case for their 1999 Jeep Wrangler, Advance Auto Parts offers a great selection of National Transfer Cases. With 3 National Transfer Cases in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Transfer Cases start at just $15.29, with an average price of $17.09, giving you a range of options to suit your budget. Backed by over 28 customer ratings and an average rating of 4.3 stars, National Transfer Cases provide both reliability and excellent performance. Choosing a National Transfer Case from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $15.29

(20)

Multi Purpose Seal

“Would have been fine most likely – if correct seal was in the box. For redoing a Front Crank Seal on a 4 cylinder 89 Ranger.”

from $17.99

(7)

Bearings

“inner spindle bearing for dana 35.direct fit. no issues.goes in nice n snug.”

from $17.99

(1)

Multi Purpose Seal

“Application for New Process 231 transfer case – front output shaft. Great replacement for OEM.”

FAQs for 1999 Jeep Wrangler Transfer Cases

What are the best-selling Transfer Cases for 1999 Jeep Wranglers?

Out of 61 Transfer Cases that fit 1999 Jeep Wranglers, the following parts are the top sellers:

OE Replacement (11740481) – $1.99
Bearings (3276988) – $15.49
With Boots And Seals (11740879) – $16.99

What’s the price range for 1999 Jeep Wrangler Transfer Cases?

The prices of Transfer Cases for the 1999 Jeep Wrangler range from $1.99 up to $1,734.99 for the most premium parts.

What is the average price of a Transfer Cases Transfer Case for a 1999 Jeep Wrangler?

The average price for Transfer Cases for the 1999 Jeep Wrangler is $160.57. Keep in mind the variety of part types within our Transfer Case category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Transfer Cases for other Jeep Wrangler model years?

Yes, we carry Transfer Cases for 35 model years of Jeep Wranglers between 1987 and 2024. The following model years are the most popular for Transfer Case purchases: 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Transfer Cases for my 1999 Jeep Wrangler?

The cheapest 1999 Jeep Wrangler Transfer Cases we carry are:

OE Replacement (11740481) – $1.99
Reverse Ball Bearing (10185477) – $2.29
Transfer Case Shift Fork Insert (10945695) – $2.49
Seal (12009365) – $2.99
NP231 Transfer Case Selector Shaft O-Ring (10184928) – $4.99

Does Advance Auto Parts sell Transfer Cases for any other 1999 Jeep models?

Yes. We stock Transfer Cases for 1 other popular 1999 Jeep models. Some of the most popular are 1999 Grand Cherokee Transfer Cases and 1999 Cherokee Transfer Cases.

What are the top-rated Transfer Cases that fit the 1999 Jeep Wrangler?

Based on 60 reviews by customers, our 1999 Jeep Wrangler Transfer Cases have an average customer rating of 5 stars. These are the highest-rated categories of Transfer Cases for the 1999 Jeep Wrangler and their top-rated products:

Output Shaft Pilot Bearings
- Bearings (18441223) – $17.99
Transfer Case Drive Chains
- Chain; Transfer Case; Model 231/241; 87-17 Jeep (10186191) – $226.99

What types of Transfer Cases do you sell for my 1999 Jeep Wrangler?

As of 4/10/25, these are some of the most in-demand types of Transfer Cases for a 1999 Jeep Wrangler:

Can I get help with 1999 Jeep Wrangler Transfer Case orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Jeep Transfer Cases and more.

What is your return policy for Jeep Wrangler Transfer Cases?

Advance Auto Parts keeps returns simple. For new Jeep Wrangler Transfer Cases and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1999 Jeep Wrangler Transfer Cases

Omix – NP231 Transfer Case Selector Shaft O-Ring (Part No.18676.33)

Omix – Reverse Ball Bearing (Part No.18886.82)

National – Bearings (Part No.B-2110)

Crown Auto Jeep Replacmnt – With New Process 231 Transfer Case, With All Bearings/Seals/Shift Fork Inserts (Part No.231MASKIT)

Omix – NP231 Transfer Case Housing Extension; 87-95 Jeep Wrangler YJ (Part No.18676.25)

National – Bearings (Part No.FC-66561)

Omix – Oil Seal (Part No.18676.62)

RT Offroad – Slip Yoke Eliminator Kit, with Np231 Transfer Case (Part No.RT24005)

Omix – Transfer Case Output Yoke Washer (Part No.18676.40)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.53004810)

Omix – NP231 Shift Arm Pads; 88-06 Jeep Wrangler TJ (Part No.18676.24)

National – Multi Purpose Seal (Part No.710660)

Crown Auto Jeep Replacmnt – Np-228/ Np229/ Np- 231, Set Of 9 (Part No.15866)

Omix – Transfer Case Shift Fork (Part No.18676.17)

National – Shaft Repair Sleeve (Part No.99155)

National – Multi Purpose Seal (Part No.341022)

National – Multi Purpose Seal (Part No.223253)

Omix – NP207 Transfer Case Drive Chain (Part No.18612.02)

Dorman – 4 Wheel Drive Shift Linkage (Part No.600-473)

Crown Auto Jeep Replacmnt – With Boots And Seals (Part No.5014148AA)

Omix – Seal; Input Bearing Retainer; 241/231; 87-17 Jeep (Part No.18676.03)

Omix – NP231 Front Output Shaft; 87-02 Jeep Wrangler (Part No.18676.50)

FAG US – CUP (Part No.M88010)

FAG US – CUP (Part No.M802011)

Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

EVO Driveline – Transfer Case Assembly (Part No.UMT207-10FY)

EVO Driveline – Transfer Case Assembly (Part No.UMT207-3FY)

EVO Driveline – Remanufactured Transfer Case (Part No.UMT207-12)

Crown Auto Jeep Replacmnt – Np-231 (Part No.J8134473)

Omix – 4WD Light Switch; NP231; 91-06 Jeep Models (Part No.18676.15)

National – Multi Purpose Seal (Part No.710046)

National – Multi Purpose Seal (Part No.710663)

Rugged Ridge – Transfer Case Output Shaft Oil Seal (Part No.18676.75)

Omix – NP231 Front Output Seal; 87-06 Jeep Wrangler (Part No.18676.41)

Crown Auto Jeep Replacmnt – For Use On Np242 Numbers 52098383/52098384/52098385/52098496/Np231 Transfer Case (Part No.4798117)

National – Bearings (Part No.HM88610)

Omix – NP231 Small Input Bearing Kit (Part No.18676.02)

Omix – AX5 Front Bearing; 87-02 Jeep Wrangler (Part No.18886.07)

National – Multi Purpose Seal (Part No.710928)

National – Multi Purpose Seal (Part No.223253)

USA Standard Gear – TCaseInputShaftSeal (Part No.70552)

FAG US – SHAFT SEAL (Part No.SS2277)

USA Standard Gear – Seal (Part No.75624)

Crown Auto Jeep Replacmnt – OE Replacement (Part No.53004810)