We’re still here and shipping orders—let’s build It together. Learn more.

In-Store Pickup Location

TCI 2004R/700R4 Lockup Wiring Kits 376600

TCI Auto 376600 - TCI 2004R/700R4 Lockup Wiring Kits
Made in the USA

Loading media


In progress

Torque Converter Lockup Kit, Wiring Kit, Vacuum Switch, GM, 200-4R, 700R4, Kit

Estimated Ship Date: ...Loading Tomorrow
Would you rather pick it up? Select Location

Hazardous Material Warning
WARNING
WARNING: Cancer and Reproductive Harm. For more information, visit www.P65warnings.ca.gov.

Brand: TCI Auto

Manufacturer's Part Number: 376600

Part Type: Torque Converter Lock up Kits

Product Line: TCI 2004R/700R4 Lockup Wiring Kits

Summit Racing Part Number: TCI-376600

UPC: 788120007641

Manual Override Switch Included: Yes

Indicator Light Included: No

Quantity: Sold as a kit.

Notes: This kit contains a gasket for the 700R4 transmission only. If this kit is to be used with a 200-4R the transmission pan gasket must be purchased separately. See the “Suggested Parts” tab for additional information.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Installation of these TCI 2004R/700R4 lockup wiring kits makes retrofits into non-ECM 700R4 or 2004R vehicles a snap. They allow automatic operation of the TCC in 4th gear under stable engine operation, and disengage the clutch when accelerating or downshifting. A manual override option is also provided. These TCI torque converter lockup wiring kits are constructed from OEM connectors and oil-resistant wire.

Warranty

Questions & Answers Ask a Product Question
Q:

I just bought this transmission Manufacturer's Part Number:
381500 My question now is am I also going to have to buy this lockup kit for it? No one mentioned a word about this and I ask before I bought it if there was anything else I'd need. The transmission is ready to be installed into my car but looks like it's going to have to wait. I don't understand why paying what I did for this that I have to keep buying extra parts for it, this lockup kit and even a speedo gear housing.

Asked by REGGIE on April 21, 2018

A:

Yes we did have to get a speedometer gear and a gear fir tailshaft to chsnge from electric to csble drivin

MARY from VA answered on April 23, 2018

+See All Answers (5) Answer This Question

Q:

Will this work in the TCI 371000 with the TCI StreetFighter Torque Converter 243105

Asked by SCOTT on March 28, 2020

A:

This is for a basically stock 700R4 and 2004R. I would contact TCI directly. In stock transmissions these work great

BRIAN from FL answered on April 01, 2020

+See All Answers (2) Answer This Question

Q:

My 200-4r has the pressure switch mounted externally on the passenger side of the trans case. Do you have instructions for that type of installation?

Asked by JIM on August 20, 2019

A:

Switches mounted on pass side in 4th gear pressure port were used for emission controls (timing, egr, etc). I would install kit as per instructions making a neater install rather then running wires across the trans to 4th gear pressure port.

ROBERT from PA answered on August 27, 2019

+See All Answers (2) Answer This Question

Q:

Hello . I bought the TCI Kit. 200 mis. works perfect.
He is so built that he only the lock up in the 4th. Gear shifts.
Now the Loc upshifts the 3 and 4 gears.
I mean the Fourth Gear Pressure Switch damage. Is that correct ??
How do I get a new Fourth Gear Pressure Switch ?????
Sorry for my English.
Best regards Jörg

Asked by JORG on May 18, 2019

A:

Did you hook up the green wire

TIM from CO answered on June 06, 2019

+See All Answers (2) Answer This Question

+See All Questions (9)

Most Helpful Reviews Review This Product

45 Customer Reviews for TCI Auto 376600 - TCI 2004R/700R4 Lockup Wiring Kits

Average Customer Review

5 Star

(25)

4 Star

(12)

3 Star

(3)

2 Star

(3)

1 Star

(2)

+See All 45 Reviews

Lock up kit

Summit RacingSummit Racing Verified Purchase

TCI-376600
Expensive kit for what it is and only comes with a 700R4 pan gasket so had to buy a 2004R gasket on top when it clearly states suitable for both transmissions.

7 of 10 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from United Kingdom

Date: November 27, 2014

Appearance
Ease of Installation
Price/Value
Quality

Works great, instructions are terrible

Summit RacingSummit Racing Verified Purchase

TCI-376600
Installing this kit is trivial, once you figure out how. Instructions are very confusing and hard to read. I have it installed with a button on the dash for manual override of the lock up. Works great.

4 of 4 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from Netherlands

Date: August 20, 2014

Appearance
Ease of Installation
Price/Value
Quality

700r-4. Lock up review.

Summit RacingSummit Racing Verified Purchase

TCI-376600
Installation was easy. I installed lock up while transmission was out for a rebuild. Three options to unlock, vacuum, brake pedal, or toggle switch. I went with vacuum on my 85 Chevy 6.2 liter diesel. So far I haven't felt any unwanted down shifting, even when pulling my 17 ski boat. It has been in about 6 months now.

4 of 5 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from GA

Date: March 24, 2014

Appearance
Ease of Installation
Price/Value
Quality

TCI 2004R wiring kit

Summit RacingSummit Racing Verified Purchase

TCI-376600
This kit is working fine and was very easy to install!

2 of 2 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from TX

Date: November 12, 2014

Appearance
Ease of Installation
Price/Value
Quality

TCI lockup kit

Summit RacingSummit Racing Verified Purchase

TCI-376600
Nice kit good instructions no problems shipped fast

2 of 2 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from WY

Date: August 08, 2014

Appearance
Ease of Installation
Price/Value
Quality

Some parts are not legal for use in California or other states with similar laws / regulations

Back To Results
Email this page