Transmission Wire Harnesses by Rostra Transmission

Rostra Precision Controls Inc. proudly introduced a new and innovative line of internal and external transmission wire harnesses in 1997. Since then, our product offering has expanded to over 35 part numbers covering a wide range of domestic and import vehicles. We drew on our vast experience and knowledge of cruise control application to create the highest quality, most durable, easiest to install harnesses available to today's technicians.

The transmission wiring harness is one of the most critical components within today's complicated electronically controlled units. Electronic signals control nearly every function within the transmission. The wire harness conveys these signals to the solenoids and sensors. Any interruption will result in failure. We urge all technicians to replace the harness and all solenoids with each complete overhaul.

As with all Rostra products, we manufacture these units in the United States under strict QS-9000 quality requirements. Each harness is 100% tested for fit, form and function before leaving our facility. These procedures insure that you will receive the finest parts available for a quality-rebuilt transmission.

Our Engineering staff has made several product enhancements for improved durability and longer life. We have also consolidated many original equipment part numbers to reduce inventory-carrying costs and simplify the order placing procedure. These consolidations assure the shop owner that they are going to receive the correct part each time they place an order. We offer a broad line of internal wire harness assemblies, external wire harness, wire harness repair kits and connectors. Ask for Rostra by name.

Wire Harness Product Listing

350-0014

350-0014 - GM 4L60E External Repair Harness 1993-on

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GM 4L60E External Repair Harness 1993-on

  • Transtar
  • 74445GK
  • Whatever It Takes
  • 74445GK
  • Natpro
  • 51859EVC
  • Original Equipment
  • N/A
  • Industry
  • 77994

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0020

350-0020 - GM 4L60E Internal Wire Harness with Lock-up Solenoid 1993-2002

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GM 4L60E Internal Wire Harness with Lock-up Solenoid 1993-2002

  • Transtar
  • N/A
  • Whatever It Takes
  • 74425NC
  • Natpro
  • 51870EC
  • Original Equipment
  • N/A
  • Industry
  • 77995

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0025

350-0025 - GM 4L60E Internal Wire Harness with Anti-Bleed Lock-up Solenoid 1993-2002

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GM 4L60E Internal Wire Harness with Anti-Bleed Lock-up Solenoid 1993-2002

  • Transtar
  • 74425NC
  • Whatever It Takes
  • 74425S
  • Natpro
  • 51870EC
  • Original Equipment
  • 12143296
  • Industry
  • 77995A

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0032

350-0032 - GM 4L80E Internal Wire Harness 1991-2003

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GM 4L80E Internal Wire Harness 1991-2003

  • Transtar
  • 34446
  • Whatever It Takes
  • 34446AK
  • Natpro
  • 33869B
  • Original Equipment
  • 24200161
  • Industry
  • 34985

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0033

350-0033 - GM 4L80E External Repair Harness 1991-on

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GM 4L80E External Repair Harness 1991-on

  • Transtar
  • 34445EK
  • Whatever It Takes
  • 34445K
  • Natpro
  • 33859VC
  • Original Equipment
  • 12154288
  • Industry
  • 34986

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0036

350-0036 - GM 4T60E Internal Wire Harness 1994-on

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GM 4T60E Internal Wire Harness 1994-on

  • Transtar
  • 84446EC
  • Whatever It Takes
  • 84446EC
  • Natpro
  • 52869K
  • Original Equipment
  • 12143000
  • Industry
  • 84970A

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0038

350-0038 - GM 4T60E Universal External Repair Harness 1991-on

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GM 4T60E Universal External Repair Harness 1991-on

  • Transtar
  • 84445AK
  • Whatever It Takes
  • 84445EBK
  • Natpro
  • 52859KVC
  • Original Equipment
  • N/A
  • Industry
  • 84972A

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0039

350-0039 - GM TH700R4 Internal Wire Harness with Lock-up Solenoid

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GM TH700R4 Internal Wire Harness with Lock-up Solenoid

  • Transtar
  • 74425L
  • Whatever It Takes
  • 74425L
  • Natpro
  • 51870L
  • Original Equipment
  • 10478100
  • Industry
  • 77949N

350-0040

350-0040 - GM 4T60E Internal Wire Harness 1991-1993 TCC PWM

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GM 4T60E Internal Wire Harness 1991-1993 TCC PWM

  • Transtar
  • 84446EA
  • Whatever It Takes
  • 84446E
  • Natpro
  • 52869H
  • Original Equipment
  • 12082980
  • Industry
  • 84970

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0041

350-0041 - GM 4T60E Internal Wire Harness 1991-1993 Non PWM

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GM 4T60E Internal Wire Harness 1991-1993 Non PWM

  • Transtar
  • 84446E
  • Whatever It Takes
  • 84446EB
  • Natpro
  • 52869HA
  • Original Equipment
  • 12082981
  • Industry
  • 84971

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0053

350-0053 - GM TH125 Internal Wire Harness with Lock-up Solenoid

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GM TH125 Internal Wire Harness with Lock-up Solenoid

  • Transtar
  • 64425B
  • Whatever It Takes
  • 64425B
  • Natpro
  • 46870
  • Original Equipment
  • 8689901
  • Industry
  • 75858

350-0055

350-0055 - Ford A4LD Case Connector (3 prong)

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Ford A4LD Case Connector (3 prong)

  • Transtar
  • 56444A
  • Whatever It Takes
  • 56444A
  • Natpro
  • 66878C
  • Original Equipment
  • E7SZ-7E499-A
  • Industry
  • 56837B

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0056

350-0056 - GM 2-pin VSS External Repair Harness

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GM 2-pin VSS External Repair Harness

  • Transtar
  • 74446CK
  • Whatever It Takes
  • 74445E-2K
  • Natpro
  • 33855VC
  • Original Equipment
  • 12101899
  • Industry
  • 34987

350-0059

350-0059 - Chrysler A604/606 Speed Sensor Repair Harness

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Chrysler A604/606 Speed Sensor Repair Harness

  • Transtar
  • A92445CK
  • Whatever It Takes
  • D92445CK
  • Natpro
  • 32855VC
  • Original Equipment
  • 4419478
  • Industry
  • 92933

350-0060

350-0060 - Ford 4R70W Internal Hard Wire Track 1998-up

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Ford 4R70W Internal Hard Wire Track 1998-up

  • Transtar
  • A76446E
  • Whatever It Takes
  • 76446E
  • Natpro
  • 47869L
  • Original Equipment
  • F8AZ-7G276-BA
  • Industry
  • 76986AR

350-0061

350-0061 - GM 4L60E Internal Wire Harness with Anti-Bleed Lock-up Solenoid 2003-2006

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GM 4L60E Internal Wire Harness with Anti-Bleed Lock-up Solenoid 2003-2006

  • Transtar
  • 74425ND
  • Whatever It Takes
  • 74425T
  • Natpro
  • 51869L
  • Original Equipment
  • 15320476
  • Industry
  • 77995B

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0062

350-0062 - Chrysler A500/A518 External Repair Harness 1993-on

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Chrysler A500/A518 External Repair Harness 1993-on

  • Transtar
  • 12445BK
  • Whatever It Takes
  • 12445BK
  • Natpro
  • 12859BVC
  • Original Equipment
  • N/A
  • Industry
  • K22986

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0063

350-0063 - GM Diagnostic and Repair Harness with Terminals

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GM Diagnostic and Repair Harness with Terminals

  • Transtar
  • 74448K
  • Whatever It Takes
  • TBA
  • Natpro
  • TBA
  • Original Equipment
  • N/A
  • Industry
  • K77975

350-0064

350-0064 - Ford E4OD External Repair Harness 1989-1994

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Ford Universal External Repair Harness - all versions of 4R70W and AXOD

  • Transtar
  • 86445EHK
  • Whatever It Takes
  • 86445EBK
  • Natpro
  • 47859EVC
  • Original Equipment
  • F2PZ-14A464G
  • Industry
  • 96968R

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0066

350-0066 - Ford Universal External Repair Harness - all versions of 4R70W and AXOD

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Ford E4OD External Repair Harness 1989-1994

  • Transtar
  • 36445EK
  • Whatever It Takes
  • 36445EK
  • Natpro
  • 37859VC
  • Original Equipment
  • 3U2Z-14S411-VNA
  • Industry
  • 36995

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0067

350-0067 - Ford E4OD/4R100 External Repair Harness 1995-on

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Ford E4OD/4R100 External Repair Harness 1995-on

  • Transtar
  • 36445EAK
  • Whatever It Takes
  • 36445EAK
  • Natpro
  • 37859FVC
  • Original Equipment
  • 3U2Z-14S411-VCA
  • Industry
  • 36995A

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0068

350-0068 - Chrysler A606 External Repair Harness Kit (Solenoid Pack)

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Chrysler A606 External Repair Harness Kit (Solenoid Pack)

  • Transtar
  • 92445AK
  • Whatever It Takes
  • 92445DK
  • Natpro
  • 32859VC
  • Original Equipment
  • 4419476
  • Industry
  • 92932

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0069

350-0069 - Chrysler A604 External Repair Harness Kit (Solenoid Pack)

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Chrysler A604 External Repair Harness Kit (Solenoid Pack)

  • Transtar
  • 62445AK
  • Whatever It Takes
  • 62445K
  • Natpro
  • 32859LVC
  • Original Equipment
  • N/A
  • Industry
  • 61932

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0070

VW Universal Internal Harness 096(01M)/097(01N)

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VW Universal Internal Harness 096(01M)/097(01N)

  • Transtar
  • 75446
  • Whatever It Takes
  • 75446BK
  • Natpro
  • 59869U
  • Original Equipment
  • Various
  • Industry
  • 119957R

350-0071

350-0071 - GM 4L80E Internal Harness 2004-on

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GM 4L80E Internal Harness 2004-on

  • Transtar
  • 34446C
  • Whatever It Takes
  • 34446D
  • Natpro
  • 33869M
  • Original Equipment
  • 24239
  • Industry
  • 34985A

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0072

350-0072 - Allison LCT1000 1999-2003 6 Sol, Internal Harness, Gen 2

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Allison LCT1000 1999-2003 6 Sol, Internal Harness, Gen 2

  • Transtar
  • 121446
  • Whatever It Takes
  • 116446AK
  • Natpro
  • 35869
  • Original Equipment
  • 29541371
  • Industry
  • 37955

350-0075

350-0075 - GM 4L80E Internal Harness 2004-on

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GM 4T65E Universal Internal

  • Transtar
  • 84446HB
  • Whatever It Takes
  • 84446GU
  • Natpro
  • 41869U
  • Original Equipment
  • 24229643
  • Industry
  • K84985R

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0077

350-0077 - GM PRNDL (NSS) Repair Harness Kit

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GM PRNDL (NSS) Repair Harness Kit

  • Transtar
  • 74446K
  • Whatever It Takes
  • 74445CK
  • Natpro
  • K51857GVC
  • Original Equipment
  • 15305920
  • Industry
  • K77999

350-0078

350-0078 - GM 4L65/70/75E Internal Harness with Lock-up Solenoid (Internal Sensor) 2006-on

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GM 4L65/70/75E Internal Harness with Lock-up Solenoid (Internal Sensor) 2006-on

  • Transtar
  • 74425NE
  • Whatever It Takes
  • 74425NE
  • Natpro
  • 51869P
  • Original Equipment
  • 24234121
  • Industry
  • 77995C

350-0079

350-0079 - GM Saturn TAAT External Repair Harness 1995-on

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GM Saturn TAAT External Repair Harness 1995-on

  • Transtar
  • 10446K
  • Whatever It Takes
  • 10446K
  • Natpro
  • 39859VC
  • Original Equipment
  • 21024415
  • Industry
  • 95995

350-0080

350-0080 - Ford 5R110W Internal Wire Harness

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Ford 5R110W Internal Wire Harness

  • Transtar
  • D16446
  • Whatever It Takes
  • Natpro
  • 38869B
  • Original Equipment
  • 4C3Z-7G276-AA
  • Industry
  • 36986

350-0083

350-0083 - GM Universal External Repair / Test Harness (20 Pins - White Wires)

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GM Universal External Repair / Test Harness (20 Pins - White Wires)

  • Transtar
  • A74445U
  • Whatever It Takes
  • 84445GH
  • Natpro
  • TBA
  • Original Equipment
  • N/A
  • Industry
  • K84972

Download installation instructions. Rostra Transmission Catalog PDF Icon

350-0086

350-0086 - Allison LCT 1000 2003-06, 6-sol,  gen 3

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Allison LCT 1000 2003-06, 6-sol, gen 3

  • Transtar
  • D121446C
  • Whatever It Takes
  • TBA
  • Natpro
  • TBA
  • Original Equipment
  • 29539792
  • Industry
  • TBA

350-0088

350-0088 - Allison LCT 1000 7-Solenoid, 4th Gen, Off-Road (2006-0n)

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Allison LCT 1000 7-Solenoid, 4th Gen, Off-Road (2006-0n)

  • Transtar
  • D121446B
  • Whatever It Takes
  • TBA
  • Natpro
  • TBA
  • Original Equipment
  • 29543334
  • Industry
  • TBA

350-0091

350-0091 - Ford A4LD/4R4/55E/AODE/AXODE/AX4S External Harness Repair Speed Sensor 1991-2003

Click image to enlarge

Ford A4LD/4R4/55E/AODE/AXODE/AX4S External Harness Repair Speed Sensor 1991-2003

  • Transtar
  • 76445C
  • Whatever It Takes
  • 56444C
  • Natpro
  • TBA
  • Original Equipment
  • F2PZ-14A464A
  • Industry
  • K76895A

350-9000

350-9000 - GM 4L80E Internal and External Harness Kit

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GM 4L80E Internal and External Harness Kit

  • Transtar
  • 34446K
  • Whatever It Takes
  • 34446BK
  • Natpro
  • K33869A
  • Original Equipment
  • 24200161
  • Industry
  • 34998

Download installation instructions #1 and #2. Rostra Transmission Catalog PDF Icon

We appreciate and welcome all new opportunities! Rostra Precision Controls is capable of designing and manufacturing many different types of wire harnesses. If you have a specialized need or a recommendation for a new product, please contact us using the form below to discuss your specific needs with one of our engineers.

Contact Rostra Transmission Technical Support

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