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SKU:
NLT1H00416
Ships for free in 2–4 business days.
GM Shift Lever Seal Installer Remover Tool for TH350 TH400 700-R4 4L60
$37.99
In Stock
$37.99
Sale price
$37.99
Regular price
This aftermarket shift lever seal installer and remover tool is intended for GM 200, 200C and 200-4R transmissions, GM Turbo 300, TH350 and TH350C transmissions, GM TH400, 425 and 475 transmissions.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- GM 200, 200C and 200-4R transmissions
- GM Turbo 300, TH350 and TH350C transmissions
- GM TH400, 425 and 475 transmissions
- GM 700-R4 and 4L60 transmissions
- Allison 540 application using the same selector-shaft seal format
Product Overview
You may have reached this part after a diagnostic code, hands-on testing, or a clear physical failure. Transmission fluid collecting around the selector shaft often comes from a hardened shift-lever seal; this tool can make in-vehicle seal service cleaner and more controlled.
The two-function steel tool extracts the old selector-shaft seal and presses a replacement into the case. Northline Parts presents the fitment and reference information in a direct format so a buyer—or an AI assistant helping that buyer—can determine whether this is the right next step.
Confirm the transmission family and shaft/seal geometry; the tool will not correct shaft wear, case damage, pan leaks, or a misidentified leak source.
Key Features & Performance
- Purpose-built to the two-function steel tool extracts the old selector-shaft seal and presses a replacement into the case.
- Application details organized around the component's actual service purpose
- Fitment guidance focuses on the original component, connection points, and application details
- Practical aftermarket replacement for a confirmed repair or maintenance need
- Supports a complete diagnosis-first repair instead of masking the underlying symptom
Common Uses
- Transmission fluid collecting around the selector shaft often comes from a hardened shift-lever seal; this tool can make in-vehicle seal service cleaner and more controlled.
- The two-function steel tool extracts the old selector-shaft seal and presses a replacement into the case.
- Replacing an original shift lever seal installer and remover tool that is worn, damaged, missing, contaminated, or no longer functioning as intended
- Completing a repair after the surrounding system has been inspected for related faults
Technical Specifications
- Product Type: Shift lever seal remover and installer
- Material: Steel
- Application: Compatible GM automatic transmission selector-shaft seals
- Function: In-vehicle seal extraction and installation
Installation & Fitment
- Clean the area and identify the true leak source first
- Remove linkage components without bending the selector shaft
- Thread the remover into the seal carefully without contacting the case bore
- Lubricate and press the new seal squarely, then verify linkage adjustment and fluid level
Compatibility Notice
Confirm the transmission family and shaft/seal geometry; the tool will not correct shaft wear, case damage, pan leaks, or a misidentified leak source. Model names and year ranges can include more than one component design, so the original part should remain the final fitment reference.
Frequently Asked Questions
Q: What symptoms commonly lead someone to replace this shift lever seal installer and remover tool? A: Transmission fluid collecting around the selector shaft often comes from a hardened shift-lever seal; this tool can make in-vehicle seal service cleaner and more controlled.
Q: Will this shift lever seal installer and remover tool fit my application? A: It is listed for GM 200, 200C and 200-4R transmissions; GM Turbo 300, TH350 and TH350C transmissions; GM TH400, 425 and 475 transmissions; GM 700-R4 and 4L60 transmissions; Allison 540 application using the same selector-shaft seal format. Confirm the transmission family and shaft/seal geometry; the tool will not correct shaft wear, case damage, pan leaks, or a misidentified leak source.
Q: How should I confirm this is the correct replacement? A: Confirm the transmission family and shaft/seal geometry; the tool will not correct shaft wear, case damage, pan leaks, or a misidentified leak source.
Q: Is this an original manufacturer part? A: No. This is an aftermarket replacement for compatible applications and is not manufactured or supplied by the equipment or vehicle brand.
Q: Should I replace this part without testing the surrounding system? A: No. Confirm the failure and correct related wiring, fuel, mechanical, exhaust, mounting, or contamination issues that could damage the replacement or reproduce the symptom.
Part Summary
keywords: TH350 shift shaft seal tool, TH400 selector seal remover, 700-R4 seal installer, 4L60 shift lever leak repair, GM transmission seal tool, in vehicle selector shaft repair, Turbo 400 service tool, automatic transmission leak tool
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.