Need to remove pins from a BMW 1378139 connector but cannot find a properly sized depinning tool.

The available depinning tool (3.9mm) is described as 'just about too small' and other tools are too big or small, indicating a lack of an exact-fit tool for this specific connector part.

Severity

2Mild

Willingness to Pay

implied

Added

May 10, 2026

Workarounds Described

Trying a tubular 3.9mm tool that doesn't fit
Attempting from both wire side and female end

Implied Software Gaps

Depinning tool database that matches tool sizes to connector part numbers

App Concept

PinPuller Pro

A precision depinning tool kit with interchangeable tips sized for specific connector part numbers, including BMW 1378139. Users enter the part number and get the exact tip, eliminating guesswork.

Key Features

Interchangeable precision tips for specific connector part numbers
Online database or QR code scanning for tip selection
Ergonomic handle with ratcheting mechanism
Durable steel construction

Target Users: Automotive technicians and DIY mechanics working on German vehicle electrical connectors

Revenue Model: $39.99 for starter kit with 3 tips; additional tips $14.99 each; subscription for part number lookup database $4.99/month

Existing Solutions Mentioned

3.9mm tubular depinning tool

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