JRready Mini-Fit Jr Pin Connector Kit 2Pin 4Pin 6Pin 8Pin Wire Automotive Electrical Male Female Connector 18-24AWG Terminals Pin and Sockets Molex 4.2mm Pitch 238Pcs ST6519

SpecPicks Verdict

SpecPicks scored JRready Mini-Fit Jr Pin Connector Kit 2Pin 4Pin 6Pin 8Pin Wire… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. JRready's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

• JRN011 SERIES CONNECTOR: 4.2mm pitch connector is made of PA66, Flame retardant grade is UL94-V0. The operating temperature range is from -40℃ to +105℃. Under environmental conditions of 23℃ ± 5℃, the temperature rise at 9A current is no more than 30℃. The connector can be mated and unmated over 50 times.
• CONNECTOR DESIGN: Connectors are ideal for power applications up to 9 amps per circuit, and feature fully isolated terminals, positive housing locks, low engagement forces, and polarized housings.The receptacle housing can be connected with a variety of plug options, including panel mount and free hanging plugs, or vertical and right angle headers.
• CONTACTS DESIGN: The 18-24AWG contact is made of tin-plated brass. Crimp pin and receptacle terminals feature multiple points of contact for a reliable electrical connection and a higher current carrying capacity. Locking tangs on the crimp contacts secure them firmly in the connector housing.The kit includes a large quantity of terminals for crimping practice or as spares, providing a great user experience, especially for beginners.
• JRREADY TOOL for JRN011 SERIES CONNECTOR: The crimper: ACT-SY-JRN011S-H. Pin removal tool：JRconDRK-D173P: enhanced for a superior grip with an enlarged size and protective cover; JRDDS-D173: high strength and hardness, magnetic deburring and polishing ,upgrades metal handle; DAP-D173: Hardened alloy steel and innovative push rod design. You can buy these tool at JRready Store.
• "COMPATIBLE with MOLEX MODELS: 2 pin connector-39-01-3029/39-01-2025; 4 pin connector- 39-01-3049/39-01-2045; 6 pin connector-39-01-3069/39-01-2065; 8 pin connector-39-01-3089/39-01-2085; Contacts pin: 39-00-0040/39-00-0041，socket: 39-00-0038/39-00-0039."

Full Specifications

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JRready Mini-Fit Jr Pin Connector Kit 2Pin 4Pin 6Pin 8Pin Wire Automotive Electrical Male Female Connector 18-24AWG Terminals Pin and Sockets Molex 4.2mm Pitch 238Pcs ST6519 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $36.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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