NP233 Transfer Case

Below you will find a detailed parts list for the NP233 transfer case that includes rebuilt re-manufactured NP233 Transfer Cases, a complete parts list including: bearing rebuild kits, gaskets, seals, small parts & thrust washers, bushings individual bearings, forks, hubs and sliders, oil pump, planets, chain, sprockets, cases housings and miscellaneous parts. If you need more information or cannot find the parts you need give us a call, if you would like to save money, ask about our good take out parts (GTO), they are inspected and guaranteed.

Use our online shopping cart, just double click the part number and see additional information, add to cart or proceed to check out. If you need more information or cannot find the parts you need give us a call 888-824-2014.

Midwest transmission has been in the automotive re-manufacturing and rebuilding business for 19 years, and shipping completed units world wide. To improve quality Midwest was one of the first companies to include dyno testing of manual transmission prior to shipping as a final step in the quality control process. We specialize in manual transmissions, automatic transmission and transfer cases. We can help with improving performance and conversions. 22 employees shipped over 9000 units last year. Guaranteed quality and correct parts supplied.

Take advantage of our NP233 Transfer Case expertise!

Having issues diagnosing problems with your NP233 transfer case? We can help free knowledgeable technical support! To speak to a Drivetrain Expert or to place an order call us toll free 888-824-2012. We have a large inventory of rebuilt NP233 transfer cases plus Transfer Case parts. Our factory rebuilt re-manufactured transfer cases are tested before leaving our factory to ensure quality, saving you both time and money!

Our rebuilt transfer Cases include all new bearings, gaskets, seals, chains clutch and viscous couplers where used. These units are tested before leaving the factory.

About the NP233 Transfer Case

The NP233 transfer case was manufactured by New Process. This model is chain driven. The NP233 is three speeds 2WD, 4WD high and 4WD low with electric shift, part time transfer case. The NP233 was used in Chevrolet S10 Blazer, S10 and GM Jimmy pickups and Dodge Dakota and Durango’s. This unit was utilized beginning in 1992.

The NP233 was manufactured with left side drop output and has a low gear ratio of 2.72 to 1. This unit has combination of 2WD, 4W high and 4W low. The units are provided with 27 spline front output and utilizes a rear slip yokes.

Potential problems with the NP233 Transfer Case

This unit can have issues with premature chain and sprocket wear and failure. Another problem associated with the NP233 transfer case is input shaft, range hub and fork failure. In general the NP233 design is very good of the horsepower rating that it is specified for.

If you have purchased your vehicle used the very first order of business is to double check the tire diameters. Used car dealers may have mismatched the tires to make the sale. Mismatched tires will cause the NP233 transfer case to fail. Recommended fluid for the NP233 transfer case is automatic transmission fluid (ATF).

The correct quality parts the first time!

In addition to a rebuilt 12 month warrantied NP233 transfer cases we offer all parts required to rebuild your unit, we have new parts and per your request we can provide good used takeout parts to save you money! Part identification is occasionally a problem and knowing just what parts need to be replaced can be an issue, we can help by identification of associated parts that should be replaced when one part fails. Take advantage of our expertise! Buy parts from Midwest Transmission Center and receive bonus free telephone expertise to assist you in diagnosing the problem, part(s) required and additional phone assistance when you are in the re-assembly processes if required. We have a large inventory of rebuilt NP233 transfer cases plus Transfer Case parts. Our factory rebuilt re-manufactured Transfer Cases are tested before leaving the factory. Save yourself time and money!

Free NP233 Transfer Case parts illustration

We provide a detailed list of rebuilt NP233 units and parts that are available plus detailed assembly illustrations to help you in parts
identification and the purchasing phase of the rebuild process. Rebuilt NP233 transfer cases include all new bearings, gaskets, seal, clutch parts, chains and filters.

Below we provide a NP233 parts illustrations to assist you with the correct identification of the parts you need. Select the parts you require from the the list below and give us a call 888-824-2012.

Application Description Model Years
S10 Blazer & Pickup 27 Spline Input, 32 Spline Rear Slip Yoke 1992-1994
S10 Blazer & Pickup 27 Spline Input, 32 Spline Rear Slip Yoke 1995-1997
S10 Blazer & Pickup 27 Spline Input, 27 Spline Rear Slip Yoke 1995-1998
S10 Blazer & Pickup 27 Spline Input, 32 Spline Rear Slip Yoke 1996-2005
S15 Jimmy 27 Spline Input, 32 Spline Rear Slip Yoke 1992-1994
S15 Jimmy 27 Spline Input, 27 Spline Rear Slip Yoke 1995-2006
S15 Sonoma 27 Spline Input, 32 Spline Rear Slip Yoke 1992-1994
S15 Sonoma 27 Spline Input, 32 Spline Rear Slip Yoke 1994-1995
S15 Sonoma 27 Spline Input, 32 Spline Rear Slip Yoke 2005-2006
Dakota 23 Spline Input, 32 Spline Rear Slip Yoke 2001-2007
Durango 23 Spline Input, 32 Spline Rear Slip Yoke 2001-2005
Jeep Comanche 23 spline input, 27 spline rear output 1989-1992
Jeep Grand Cherokee 23 spline input, 27 spline rear output 1993-1995
Jeep Liberty 23 spline input, 32 spline rear output 2002-Up
Jeep Wrangler 23 spline input, 27 spline rear output 1991-2006
Jeep Wrangler 23 spline input, fixed yoke rear output 1993-2003
 

This information tag is located on rear of transfer case near where the driveshaft exits. Please supply the assembly number when ordering a replacement.

 

Need Stronger Parts?

Midwest Transmission can Cryogenic Treat any shaft or gear. This cryo treatment will add 30% in component strength. Call 888-824-2012 for a quote.

Use our online shopping cart, just double click the part number and see additional information, add to cart or proceed to check out.

Rebuilt NP233 Transfer Cases 12 Month Warranty

BEARING KITS

Drawing Image Description Part Number
N.I. NP 233 (GM) (95-05) (16mm Wide Input Bearing) MWT-230
N.I. NP 233 (GM) (95-05) (24mm Wide Input Bearing) TRSBK230A
N.I. NP 233 (Dodge 01-Up) MWT-430
N.I. NP 233 (Isuzu Hombre) MWT-430

SMALL PARTS KITS

Drawing Image Description Part Number
N.I. NP 233 TRS492001

Gaskets, Seals, & Filter NP233 Transfer Case

GASKET & SEAL KITS

Drawing Image Description Part Number
N.I. NP 233 (GM) K100907
N.I. NP 233 (Dodge) TSK-233D
N.I. NP 233 (Isuzu) TSK-233D

FILTERS

Drawing Image Description Part Number
18 Pump Screen (Filter) NP4338943

SEALS

Drawing Image Description Part Number
4 Pump Seal CR22306
19 Input Seal 200245
35 Front Output Seal (2.455 inch x 1.110 inch) GM12544075
35 Front Output Seal (2.455 inch x 1.485 inch) 100223
35 Front Output Seal (2.695 inch x 1.850 inch) FTRS326074A
12 Rear Output Seal (2.385 inch x 1.430 inch) 8850A
12 Rear Output Seal (2.695 inch x 1.825 inch) TRS411074
12 Rear Output Seal w/boot (2.710 inch x 1.830 inch) NV22507

GASKETS & O-RINGS

Drawing Image Description Part Number
Adapter to Transfer Case Gasket (GM) 100130
N.I. Shifter O-Ring TRS351333

Bushings & TH Washers NP233 Transfer Case

BUSHINGS

Drawing Image Description Part Number
11 Extension Housing (1.630 inch OD) (27 Spline) 12501A
11 Extension Housing (2.010 inch OD) (32 Spline) 100408

WASHERS

Drawing Image Description Part Number
26 Planet Thrust Washer (Plastic) 4338908

Bearings NP233 Transfer Case

Drawing Image Description Part Number
39 Front Output Shaft Bearing (Front) 6206N
16 Front Output Shaft Bearing (Rear) SCE2416
N.I. Input Bearing (Inner) DB59856
23 Input Bearing (.630 inch Wide) w/Snap Ring 6010N
23 Input Bearing (.940 inch Wide) BD50-8
8 Output Bearing (Rear) (35mm ID) 6207N

Shift Forks NP233 Transfer Case

Drawing Image Description Part Number
41 Mode Fork (Iron) (Cast # 16196) NV16267
41 Mode Fork (Iron) (Cast # 17178) 4746136
44 Mode Fork Insert (45mm Long) NP4219073
41 Range Fork (Aluminum) (Cast # 17833) NP17833-R
41 Range Fork (Must Use Updated Range Slider w/ .368 inch Wide Fork Slot) TRS492849
44 Fork Insert (29mm Long) TRS411850-1A
44 Fork Insert Kit NP15866
44 Fork Insert (29mm Long) TRS411850-1A

Hubs, Sliders & Synchronizers NP233 Transfer Case

HUBS & SLIDERS

Drawing Image Description Part Number
31-D Mode Slider (48T) NV17823
31-D Mode Slider (30T) NP17773
29 Range Slider & Hub Kit NP4796906
29 Range Slider & Hub (.318 inch Wide Fork Slot) (Non-Updated) TRS492645K
29 Range Slider (.368 inch Wide Fork Slot) (Updated) TRS492645A

SYNCHRONIZERS

Drawing Image Description Part Number
31 Mode Assembly (48T) NV17915
31 Mode Synchro (48T) NP4329526
31 Mode Synchro (60T) NP4746139
31A&C Key & Spring Kit, Mode Assembly (48T) NP208K
31A&C Key & Spring Kit, Mode Assembly (60T) TRS331843A-2

Pump, Planet NP233 Transfer Case

PUMPS

Drawing Image Description Part Number
5 Pump Assembly NV16209-U

PLANETS

Drawing Image Description Part Number
28 Planet (6 Pinion) (used w/ .630 inch Wide Input Bearing) (94-Up) NV17869
28 Planet (6 Pinion) (used w/ .940 inch Wide Input Bearing) (Up to 94) TRS351588

Cases & Housings NP233 Transfer Case

Drawing Image Description Part Number
3 Case Half (Rear) (Cast 16117 inch) NP4741242
10 Extension Housing (32T Output) TRS351772A

Chains & Sprockets NP233 Transfer Case

Drawing Image Description Part Number
38 Chain (1.00 inch Wide) 31 Links CL10-027
38 Chain (1.25 inch Wide) 31 Links MWTCL10-022 CL10-022
14 Driven Sprocket (1.25 inch Wide Chain) TRS351806

Miscellaneous Components NP233 Transfer Case

MISCELLANEOUS COMPONENTS

Drawing Image Description Part Number
6 Output Bearing Retainer Snap Ring (27 Spline Shaft) TRS351860B
6 Output Bearing Retainer Snap Ring (32 Spline Shaft) TRS492860
N.I. Output Bearing Retainer Split Sleeve (27 Spline Shaft) (Sonnax) Upgraded NP TRSS100420-0
N.I. Output Bearing Retainer Split Sleeve (32 Spline Shaft) (Sonnax) Upgraded NP TRSS100420-0
17 Pickup Tube TRS351463
N.I. Shift Motor (92-05) TRS492420

CORE DEPOSIT ON ABOVE MOTOR

Drawing Image Description Part Number
N.I. Speed Sensor (K Models up to 2000, S Models up to 2005) TRS492436
N.I. Stud, Case and Adapter (Metric 10.5mm) (Coarse / Coarse) TRS492775
N.I. Stud, Case and Adapter (Metric 3/8 inch) (Fine / Coarse) TRS492775A
N.I. Switch, 4wd Indicator (3 Prong) TRS321411
N.I. Vent Tube TRS435490

Click Images to enlarge and shrink

 
 
 

 

Minimum order $25.00, Shipping and handling charges will be added.