If you're restoring or repairing a Jeep Wrangler vehicle, check out our high quality OEM style NP Model 231 Transfer Case Parts.

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NP Model 231 Transfer Case Exploded View Diagram

Item #	Description	Model	Year	Comments	Part #
1	Fork, Range Shift	All	87-02		52207 04

2	Fork, Mode Shift	All	87-96	See Note #1 for Transfer Case ID #s	52207 03
		All	87-96	See Note #2 for Transfer Case ID #s	52449 1095

3	KIT, Shift Pads	All		Includes pads for both Forks	52219 01

6	O-Ring, Sector Seal	All			52218 08

7	Sector Seal	All			52218 09

8	Grommet	All			52449 1145

9	Yoke, Front Output Shaft	YJ	87-95		52239 00
		TJ	97-99		52449 0118
		XJ,ZJ			52449 0120

10	Seal, Front Output	All	87-96		52218 05
		All	97-00		52449 1148
		All	2001		52218 05

11	Bearing, Front Output Shaft	All	87-02		52200 16

12	Output Shaft	All	87-02	All Models except Liberty KJs	52225 02

13	Bearing, Output Shaft, Rear	All			52200 17

14	Drive Sprocket	All	87-96		52238 00
		All	97-02		52449 1149

15	Chain	All	87-02		52205 01

16	Bearings, Sprocket	All	87-96	52200 15

17	Mainshaft	YJ & XJ	87-96		52221 01

18	Oil Seal, Rear Output	All	87-02	All NP 231	52218 06

19	Housing, Oil Pump	All	87-01	All NP 231	52241 00

20	Bearing	All			52200 16

21	Stop Ring	All	87-96		52243 00

22	Synchronizer Assy.,Mode Shift		All	87-96	52244 00

24	Planetary Gear	All	87-90	See Note #4 for Transfer Case ID #s	52249 00
		All	91-93	All	52249 00

25	Pilot Bearing	All	87-96		52200 13
		All	97-02		52200 18

26	Input Bearing	All	87-96		52200 14
		All	97-02		52200 19

27	Input Gear	XJ & YJ	87-90	Use w/ Transfer Case ID # 53006091, 53006094	52210 01
		XJ & YJ	87-90	Use w/ Transfer Case ID # 53006093, 53006096	Coming Soon
		XJ & YJ	91-96	21 Teeth	52210 02
		XJ & YJ	91-96	23 Teeth	Coming Soon
		XJ & TJ	97-98	2.5L w/ Manual Transmission	52449 1150
		XJ & TJ	97-00	4.0L	52449 1151
		XJ & TJ	1998	2.5L w/ Automatic Transmission	52449 1152
		XJ & TJ	99-00	w/ 2.5L engine	52449 1150
		XJ & TJ	2001		52449 1151
		ZJ	1993		52210 03
		ZJ	1994	w/ Manual Transmission	52210 03
		ZJ	1995	w/ Automatic Transmission	52449 1155
		KJ	2002		52449 1151
		TJ	97-00	w/ Automatic Transmission	52449 1152
		TJ	97-00	w/ Manual Transmission	52449 1150
		TJ	01-02	2.5L w/ Automatic Transmission	52449 1152
		TJ	01-02	2.5L w/ Manual Transmission	52449 1150
		TJ	01-02	w/ 4.0L engine	52449 1152

28	Retainer, Bearing	All			52245 00

29	Seal, Front Retainer	All			52119 03

30	Seal, Rear	YJ, XJ	87-90		52449 1162
		YJ,XJ,ZJ	91-01		52218 07
		TJ	97-02		52218 10

31	Housing Extension, Rear	YJ	87-95		52240 00
		XJ	91-96		52240 00
		ZJ	93-95		52240 00
		KJ	2002		52240 00

32	Extension Bushing	All			52201 01

34	Magnet	All			52259 00

35	O-Ring	All			52257 00

36	Switch, Vacuum				52247 00
	Switch, Electrical				52247 01

37	O-Ring Seal	All			52247 50

38	Complete Install Kit for NP 231	All			52449 1111

39	Case Half, Front	YJ	87-89	w/ Vacuum Switch Hole (see note 3)	52256 00

40	Filter, Transfer Case Oil	All	87-02		52258 00

41	Retainer, Rear	YJ, XJ	94-96		52255 00

42	Slip Yoke, Rear Output	YJ	87-95		52304 01

43	Complete 231 Transfer Case Unit	-	84-07		52252 XX
	Heavy Duty Replacement Transfer Case Unit	-	-		52251 XX

Note #1: Use with Transfer Case #: 53008207, 52097533, 53008209, 52097522, 53008211, 52097524, 53008212, 52097523, 53008210 »BACK«
Note #2: Use with Transfer Case #: 52097696, 52097696, 52097890, 52097888, 52098358, 52098360, 52098487, 52098450, 52098661, 52098526, 52098316, 52098318, 52098319, 52098471, 52098473, 52098480, 52098469, 52099120, 52099212 »BACK«
Note #3: Use with Transfer Case #: 53003927, 53004271, 53004272, 53004301, 53004328, 53005355, 53005382 »BACK«
Note #4: Use with Transfer Case #: 53006092, 53006093, 53006094, 53006095, 53006096, 53006191 »BACK«
Note #5: Transfer Case #: 53003927, 53004272, 53004301, 53004328 »BACK«
Note #6: Use with Transfer Case #: 52097695, 52097893, 52097894, 520977526, 52097696, 53008210, 52098361, 52098361, 52098362, 52098563, 52098561, 52098318, 52098319, 52098048, 52098316, 52097526 »BACK«
Note #7: Use with Transfer Case #: 52097890, 52097891, 52097888, 52097889, 52097892, 52098048, 52098358, 52098360, 52098486, 52098487, 52098540, 52095440, 52098616, 52098471, 52098473, 52098480, 52099212, 52099211AB »BACK«

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