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New Process NP231 Transfer Case Parts for Cherokee & Wrangler

The NP231 has an aluminum case and it should have a tag on the back saying New Process Gear, Model 231. New versions of the NP231 are refered to as NVG231 or NV231 which stands for New Venture Gear. The tag on the back of the transfer case will reflect the name change. Only the name is different. A NV231 HD model is used in some ZJ and is a "heavy duty" version for Jeeps with the big V8s.

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Displaying 1 to 60 (of 71 products) Result Pages:  1  2  [Next >>] 
    Fits Vehicle   Manufacturer   Model   Product Name   Price    
 Shifting Sector For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case  1984-01
Cherokee
1986-93
Comanche
1987-06
Wrangler
 
 Crown Automotive   4638844   Shifting Sector For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case   $27.99 

 Bearing Retainer For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case  1984-01
Cherokee
1986-93
Comanche
1987-06
Wrangler
 
 Crown Automotive   4338972   Bearing Retainer For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case   $24.99 

 Synchronizer For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case  1984-01
Cherokee
1986-93
Comanche
1987-06
Wrangler
 
 Crown Automotive   4796967   Synchronizer For 1984-01 Jeep Cherokee 1986-93 Comanche 1987-06 Wrangler With NP-231 Transfer Case   $123.99 

 Oil Pump Housing For 1987-01 Jeep Cherokee Comanche and Wrangler With NP-231 Transfer Case  1987-01
Cherokee
Comanche
Wrangler
 
 Crown Automotive   4338936   Oil Pump Housing For 1987-01 Jeep Cherokee Comanche and Wrangler With NP-231 Transfer Case   $35.99 

 Replacement Bearing Mega SYE Kit NP231 For 1987-06 Jeep Wrangler / 1987-01 Jeep Cherokee  1987-01
Cherokee
Wrangler
 
 Rugged Ridge   18676.74   Replacement Bearing Mega SYE Kit NP231 For 1987-06 Jeep Wrangler / 1987-01 Jeep Cherokee
REBATE AVAILABLE 
 $28.99
 $21.99 

 Front Output Shaft For 1987-99 Jeep Wrangler For NP231 Transfer Case  1987-02
Wrangler
Cherokee
 
 Omix-ADA   18676.50   Front Output Shaft For 1987-99 Jeep Wrangler For NP231 Transfer Case
REBATE AVAILABLE 
 $217.99
 $141.99 

 Drive Chain For 1987-04 Jeep Wrangler; 87-01 Cherokee; 93-96 Grand Cherokee For All NP231 Transfer Case Models  1987-04
Jeep Wrangler
87-01
Cherokee
93-96
Grand Cherokee
 
 Omix-ADA   18612.01   Drive Chain For 1987-04 Jeep Wrangler; 87-01 Cherokee; 93-96 Grand Cherokee For All NP231 Transfer Case Models
REBATE AVAILABLE 
 $139.99
 $93.99 

 Mode Shift Fork Pad Kit For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case  1987-06
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18676.24   Mode Shift Fork Pad Kit For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case
REBATE AVAILABLE 
 $13.99
 $10.99 

 Selector Shaft Seal For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case  1987-06
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18676.34   Selector Shaft Seal For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case
REBATE AVAILABLE 
 $4.99 

 Front Output Shaft Bearing Retainer For 1987-06 Jeep Cherokee; Wrangler; Grand CherokeeFor NP231 Transfer Case  1987-06
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18676.42   Front Output Shaft Bearing Retainer For 1987-06 Jeep Cherokee; Wrangler; Grand CherokeeFor NP231 Transfer Case
REBATE AVAILABLE 
 $8.99
 $7.99 

 Input Bearing Retainer For NP231 Transfer Case  1987-06
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18680.11   Input Bearing Retainer For NP231 Transfer Case
REBATE AVAILABLE 
 $39.99
 $26.99 

 Selector Shaft O-Ring For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case  1987-06
Jeep Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18676.33   Selector Shaft O-Ring For 1987-06 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case
REBATE AVAILABLE 
 $2.99 

 Oil Seal Used In Slip Eliminator Kit In NP231  1987-06
Wrangler
 
 Omix-ADA   18676.62   Oil Seal Used In Slip Eliminator Kit In NP231
REBATE AVAILABLE 
 $3.99 

 NP231 Yoke For 18676.60 Slip Yoke Eliminator Kit For 1987-06 Jeep Wrangler  1987-06
Wrangler
 
 Omix-ADA   18676.61   NP231 Yoke For 18676.60 Slip Yoke Eliminator Kit For 1987-06 Jeep Wrangler
REBATE AVAILABLE 
 $51.99
 $34.99 

 Transfer Case Chain 1 Inch Width With 30 Links For 1987-04 Jeep Wrangler 1984-01 Cherokee and 1993-96 Grand Cherokee With NP231 or NP233  1987-06
Wrangler
1984-01
Cherokee
1993-96
Grand Cherokee
 
 Alloy USA   11650   Transfer Case Chain 1 Inch Width With 30 Links For 1987-04 Jeep Wrangler 1984-01 Cherokee and 1993-96 Grand Cherokee With NP231 or NP233
REBATE AVAILABLE 
 $86.99
 $57.99 

 Genuine OEM 23 Spline NP231 Transfer Case Assembly Auto For 1987-06 Jeep Wrangler Cherokee And Grand Cherokee  1987-06
Wrangler
1987-01
Cherokee
1993-06:Grand Cherokee
 
 Omix-ADA   S-52098360   Genuine OEM 23 Spline NP231 Transfer Case Assembly Auto For 1987-06 Jeep Wrangler Cherokee And Grand Cherokee   $1,877.99
 $1,222.99 

 Yoke Washer Front Rubber For 1987-07 NP231 NP242 NV241 NV249  1987-07
Wrangler
Grand Cherokee
Liberty
 
 Omix-ADA   18680.32   Yoke Washer Front Rubber For 1987-07 NP231 NP242 NV241 NV249
REBATE AVAILABLE 
 $5.99 

 NP231 Shift Fork For 1997-06 Jeep Wrangler 87-01 Cherokee And 02-07 Liberty  1987-07
Wrangler
Grand Cherokee
Liberty
 
 Omix-ADA   18676.80   NP231 Shift Fork For 1997-06 Jeep Wrangler 87-01 Cherokee And 02-07 Liberty
REBATE AVAILABLE 
 $130.99
 $87.99 

 Input Gear NP231 23 Spline For 1987-89 Jeep Wrangler  1987-89
Wrangler
 
 Omix-ADA   18676.06   Input Gear NP231 23 Spline For 1987-89 Jeep Wrangler
REBATE AVAILABLE 
 $247.99
 $160.99 

 Shift Fork Pad Set for 1987-90 NP231 Transfer Case  1987-90
Cherokee
Wrangler
 
 Omix-ADA   18676.23   Shift Fork Pad Set for 1987-90 NP231 Transfer Case
REBATE AVAILABLE 
 $5.99 

 NP231 Small Input Bearing Kit For 1987-90 Jeep Wrangler  1987-90
Wrangler
 
 Omix-ADA   18676.02   NP231 Small Input Bearing Kit For 1987-90 Jeep Wrangler
REBATE AVAILABLE 
 $5.99 

 Planetary Gear For 1987-93 Jeep Cherokee Comanche And Wrangler (See Description)  1987-93
Cherokee
Wrangler
Comanche
 
 Crown Automotive   53006087   Planetary Gear For 1987-93 Jeep Cherokee Comanche And Wrangler (See Description)   $126.99 

 Synchronizer Assembly Shift Mode NP231 Transfer Case For 1987-93 Jeep Wrangler  1987-93
Wrangler
 
 Omix-ADA   18676.19   Synchronizer Assembly Shift Mode NP231 Transfer Case For 1987-93 Jeep Wrangler
REBATE AVAILABLE 
 $491.99
 $319.99 

 Vaccum Switch NP231 Transfer Case For 1987-93 Jeep Wrangler  1987-93
Wrangler
 
 Omix-ADA   18676.14   Vaccum Switch NP231 Transfer Case For 1987-93 Jeep Wrangler
REBATE AVAILABLE 
 $76.99
 $51.99 

 Shift Mode Synchronizer Blocking Ring for NP231 For 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.35   Shift Mode Synchronizer Blocking Ring for NP231 For 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $26.99
 $21.99 

 Input Gear Outer Bearing NP231 Transfer Case For 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.04   Input Gear Outer Bearing NP231 Transfer Case For 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $62.99
 $41.99 

 Input Bearing Retainer Kit NP231 For 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.01   Input Bearing Retainer Kit NP231 For 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $85.99
 $57.99 

 Mainshaft Rear Bushing For NP231 For 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.28   Mainshaft Rear Bushing For NP231 For 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $11.99
 $10.99 

 Mode Shift Fork Bushing For NP231 For 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.49   Mode Shift Fork Bushing For NP231 For 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $9.99 

 Front Output Yoke Washer For NP231 1987-95 Jeep Wrangler  1987-95
Wrangler
 
 Omix-ADA   18676.40   Front Output Yoke Washer For NP231 1987-95 Jeep Wrangler
REBATE AVAILABLE 
 $8.99
 $7.99 

 NP231 Transfer Case Housing Case Rear Extension For 1987-95 Jeep Wrangler; 1987-96 Cherokee; 1993-95 Grand Cherokee  1987-95
Wrangler
1987-96
Cherokee
1993-95
Grand Cherokee
 
 Omix-ADA   18676.25   NP231 Transfer Case Housing Case Rear Extension For 1987-95 Jeep Wrangler; 1987-96 Cherokee; 1993-95 Grand Cherokee
REBATE AVAILABLE 
 $60.99
 $40.99 

 Front Output Seal For 1987-96;2001 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case  1987-96
2001
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   18676.41   Front Output Seal For 1987-96;2001 Jeep Cherokee; Wrangler; Grand Cherokee For NP231 Transfer Case
REBATE AVAILABLE 
 $7.99
 $6.99 

 Input Gear Bearing For 1987-93 Jeep Cherokee Comanche Grand Cherokee With NP-242 Transfer Case And 1987-96 Cherokee Comanche And Wrangler With NP-231 Transfer  1987-96
Cherokee
Comanche
Wrangler
 
 Crown Automotive   4338891   Input Gear Bearing For 1987-93 Jeep Cherokee Comanche Grand Cherokee With NP-242 Transfer Case And 1987-96 Cherokee Comanche And Wrangler With NP-231 Transfer   $30.99 

 Mode Shift Fork For 1987-96 Jeep Cherokee Comanche And Wrangler With NP-231 Transfer Case (See Description)  1987-96
Cherokee
Comanche
Wrangler
 
 Crown Automotive   4338920   Mode Shift Fork For 1987-96 Jeep Cherokee Comanche And Wrangler With NP-231 Transfer Case (See Description)   $46.99 

 Vacuum Switch For 1987-96 Jeep Wrangler and Cherokee with 207 or NP-231 Transfer Case  1987-96
Wrangler
Cherokee
 
 Crown Automotive   53001101   Vacuum Switch For 1987-96 Jeep Wrangler and Cherokee with 207 or NP-231 Transfer Case   $26.99 

 Planatery Gear Assembly For NP231 Transfer Case  1987-96
Wrangler
Cherokee
 
 Omix-ADA   18680.55   Planatery Gear Assembly For NP231 Transfer Case
REBATE AVAILABLE 
 $327.99
 $212.99 

 Oil Pump Housing Seal for NP231 For 1987-99 Jeep Wrangler  1987-99
Wrangler
 
 Omix-ADA   18676.46   Oil Pump Housing Seal for NP231 For 1987-99 Jeep Wrangler
REBATE AVAILABLE 
 $4.99 

 Output Shaft Inner Bearing For 1987-99 Jeep Wrangler NP231 Transfer Case  1987-99
Wrangler
 
 Omix-ADA   18676.51   Output Shaft Inner Bearing For 1987-99 Jeep Wrangler NP231 Transfer Case
REBATE AVAILABLE 
 $12.99
 $10.99 

 Bearing Inner Input Gear NP231 Transfer Case For 1987-99 Jeep Wrangler  1987-99
Wrangler
 
 Omix-ADA   18676.11   Bearing Inner Input Gear NP231 Transfer Case For 1987-99 Jeep Wrangler
REBATE AVAILABLE 
 $13.99
 $10.99 

 Range Shift Fork NP231 Transfer Case For 1987-99 Jeep Wrangler  1987-99
Wrangler
 
 Omix-ADA   18676.17   Range Shift Fork NP231 Transfer Case For 1987-99 Jeep Wrangler
REBATE AVAILABLE 
 $65.99
 $44.99 

 Front Output Yoke Nut for NP231 For 1987-99 Jeep Wrangler  1987-99
Wrangler
 
 Omix-ADA   18676.36   Front Output Yoke Nut for NP231 For 1987-99 Jeep Wrangler
REBATE AVAILABLE 
 $11.99
 $10.99 

 Oil Pump Housing & Oil Seal for NP231 For 1987-99 Jeep Wrangler  1987-99
Wrangler
 
 Omix-ADA   18676.47   Oil Pump Housing & Oil Seal for NP231 For 1987-99 Jeep Wrangler
REBATE AVAILABLE 
 $74.99
 $50.99 

 Genuine OEM 21 Spline New Process 231 Transfer Case Assembly For 1988-01 Jeep Cherokee  1988-01
Cherokee
 
 Omix-ADA   S-52099310   Genuine OEM 21 Spline New Process 231 Transfer Case Assembly For 1988-01 Jeep Cherokee   $1,951.99
 $1,219.99 

 Oil Seal Rear Output Shaft For 1988-06 Jeep Wrangler And Cherokee With Mega SYE  1988-06
Wrangler
Cherokee
Grand Cherokee
 
 Rugged Ridge   18676.75   Oil Seal Rear Output Shaft For 1988-06 Jeep Wrangler And Cherokee With Mega SYE
REBATE AVAILABLE 
 $6.99 

 Mode Shift Fork NP231 For 1988-96 Jeep Cherokee And 1988-95 Wrangler  1988-96
Cherokee
1988-95
Wrangler
 
 Omix-ADA   18676.26   Mode Shift Fork NP231 For 1988-96 Jeep Cherokee And 1988-95 Wrangler
REBATE AVAILABLE 
 $63.99
 $42.99 

 Genuine OEM 23 Spline New Process 231 Transfer Case Assembly Manual  1989-99
Cherokee
Wrangler
Grand Cherokee
 
 Omix-ADA   S-52098358   Genuine OEM 23 Spline New Process 231 Transfer Case Assembly Manual   $2,066.99
 $1,291.99 

 Input Bearing Retainer Seal NP231 For 1990-99 Jeep Wrangler  1990-99
Wrangler
 
 Omix-ADA   18676.03   Input Bearing Retainer Seal NP231 For 1990-99 Jeep Wrangler
REBATE AVAILABLE 
 $5.99 

 Shift Mode Selector for Jeep Wrangler YJ 1991-93  1991-93
Wrangler
 
 Omix-ADA   18676.31   Shift Mode Selector for Jeep Wrangler YJ 1991-93
REBATE AVAILABLE 
 $53.99
 $35.99 

 Maindrive Sprocket Bearing For NP231 For 1991-95 Jeep Wrangler  1991-95
Wrangler
 
 Omix-ADA   18676.44   Maindrive Sprocket Bearing For NP231 For 1991-95 Jeep Wrangler
REBATE AVAILABLE 
 $21.99
 $17.99 

 Input Gear NP231 21 Spline For 1991-96 Jeep Wrangler; Cherokee  1991-96
Wrangler
Cherokee
 
 Omix-ADA   18676.08   Input Gear NP231 21 Spline For 1991-96 Jeep Wrangler; Cherokee
REBATE AVAILABLE 
 $303.99
 $197.99 

 Input Gear 21 Teeth For 1991-96 Jeep Wrangler And Cherokee With NP-231 Transfer Case  1991-96
Wrangler
Cherokee
 
 Crown Automotive   53006083   Input Gear 21 Teeth For 1991-96 Jeep Wrangler And Cherokee With NP-231 Transfer Case   $100.99 

 Input Gear For 1993-96 Jeep Grand Cherokee With NP-231 Transfer Case  1993-96
Grand Cherokee
 
 Crown Automotive   4761068   Input Gear For 1993-96 Jeep Grand Cherokee With NP-231 Transfer Case   $137.99 

 Input Gear NP231 23 Spline For 1993-98 Jeep Grand Cherokee ZJ  1993-98
Grand Cherokee
 
 Omix-ADA   18676.10   Input Gear NP231 23 Spline For 1993-98 Jeep Grand Cherokee ZJ
REBATE AVAILABLE 
 $550.99
 $358.99 

 Planetary Gear Set For 1994-01 Jeep Wrangler; Cherokee; Grand Cherokee  1994-01
Wrangler
Cherokee
Grand Cherokee
 
 Omix-ADA   18676.55   Planetary Gear Set For 1994-01 Jeep Wrangler; Cherokee; Grand Cherokee
REBATE AVAILABLE 
 $396.99
 $257.99 

 Input Gear For NP231 For 1994-04 Grand Cherokee; Liberty; Wrangler  1994-04
Grand Cherokee
Liberty
Wrangler
 
 Omix-ADA   18676.81   Input Gear For NP231 For 1994-04 Grand Cherokee; Liberty; Wrangler
REBATE AVAILABLE 
 $266.99
 $172.99 

 Output Shaft Rear Oil Seal for NP231 Transfer Case For 1994-06 Jeep Wrangler  1994-06
Wrangler
 
 Omix-ADA   18676.29   Output Shaft Rear Oil Seal for NP231 Transfer Case For 1994-06 Jeep Wrangler
REBATE AVAILABLE 
 $6.99 

 Output Shaft Seal For NP231 For 1994-06 Jeep Wrangler  1994-06
Wrangler
 
 Omix-ADA   18676.56   Output Shaft Seal For NP231 For 1994-06 Jeep Wrangler
REBATE AVAILABLE 
 $25.99
 $18.99 

 NP231 Mainshaft For 1994-95 Jeep Wrangler YJ; 1997-99 Jeep Wrangler TJ; 1994-99 Jeep Cherokee XJ; 1997 Jeep Grand Cherokee ZJ  1994-95
Wrangler
1997-99
Wrangler
1994-99
Cherokee
1997
Grand Cherokee
 
 Omix-ADA   18676.57   NP231 Mainshaft For 1994-95 Jeep Wrangler YJ; 1997-99 Jeep Wrangler TJ; 1994-99 Jeep Cherokee XJ; 1997 Jeep Grand Cherokee ZJ
REBATE AVAILABLE 
 $459.99
 $298.99 

 Input Gear For 1997-02 Jeep Wrangler And 1997-00 Cherokee With NP231 Transfer Case (See Description For Details)  1997-00
Wrangler
1997-00
Cherokee
 
 Crown Automotive   4796956   Input Gear For 1997-02 Jeep Wrangler And 1997-00 Cherokee With NP231 Transfer Case (See Description For Details)   $127.99 

 Input Gear For 1997-01 Jeep Wrangler 1997-01 Cherokee And 2002 Liberty with NP-231 Transfer Case  1997-01
Wrangler
Cherokee
2002
Liberty
 
 Crown Automotive   4798113   Input Gear For 1997-01 Jeep Wrangler 1997-01 Cherokee And 2002 Liberty with NP-231 Transfer Case   $137.99 

Displaying 1 to 60 (of 71 products) Result Pages:  1  2  [Next >>] 
If you don't see the NP231 that you are looking for, please send us an e-mail or give us a call at 1-800-490-7921 so that we can further assist you with your Jeep parts and accessories search.

There are versions of this chain driven transfer case that take 21 and 23 spline input shafts. The 23 spline version is used behind the AX-15 and the 21 spline is used behind the AX-5 and the BA 10/5. The output for the front driveshaft is on the drivers side. Low range is 2.72 and high is 1.00.

If you own a 21 spline NP231 and you want to swap in a 23 spline transmission, you can either look for a cheap 23 spline NP231 at the junk yard or go to your local Jeep Parts Dealer and order up a new input shaft part # 18676.09. This is the part you need to convert your NP231 to 23 spline input.

Usage: Since 1988, the NP231 has been the "Command Trac" transfer case used in Cherokees (XJ), Comanches (MJ), and Wranglers (YJ). It has been the "Command Trac" transfer case in the Grand Cherokee (ZJ) since its introduction. The new Wrangler (TJ) continues to use the NP231, but the NP231 used in the TJ has a different tail housing that allows the removal of the drive shaft with out losing transfer case fluid.

Both version of the NP231 used in the Wranglers have an over all length that is long for a short wheel base vehicle. This can cause driveline vibration and premature u-joint failure especially for a lifted vehicle. There are kits to convert the tail housing to a standard yoke to allow the use of a longer rear drive shaft. There is also a 4:1 low range reduction kit for the NP231. Wrangler are only available with "Command Trac", so the NP231 or NP207 are the only transfer cases available from the factory in any Wrangler model.

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