JRready ST6450 Deutsch Connector Pins Contact Kit - 340pcs Durable

In this review the JRready ST6450 Deutsch Connector Pins Contact Kit is evaluated for technicians and hobbyists who need a reliable supply of stamped Deutsch contacts. The kit stands out because it bundles three common contact sizes with clear wire range guidance and robust plating, making it a practical choice when rebuilding or repairing DTP, DT or DTM connectors. For anyone who crimps and assembles Deutsch-style plugs regularly, this review finds the kit delivers consistent fit and good electrical capacity for its intended AWG ranges.

Key Features

• Size 12 contacts: Includes 30 pairs for heavier circuits and supports 14-12 AWG with a 25A maximum rating, covering higher current needs.
• Size 16 contacts: Supplies 70 pairs sized for 18-14 AWG and rated to 13A, useful for mid-range automotive or equipment wiring.
• Size 20 contacts: Provides 70 pairs for 22-16 AWG circuits with a 7.5A rating, ideal for smaller signal or low-current lines.
• Durable construction: Phosphor bronze cores with nickel plating and tinned barrels reduce corrosion and promote reliable conductivity over time.
• Measured lengths: Male and female terminals are specified to the thousandth of an inch, aiding fit verification when replacing or matching terminals.
• Wide connector compatibility: Designed to work with multiple Deutsch series including DTP, DT, DTM, HD30 and HDP20, allowing reuse across connector families.

Who It's For

The kit is aimed at automotive electricians, equipment technicians, and DIYers who repair or assemble Deutsch-style connectors and need a mixed stock of male and female stamped pins for sizes 12, 16 and 20. It suits workshops that perform frequent connector rebuilds and require clear wire range and current ratings to match circuits.

Those who should look elsewhere include users needing only a single contact size in bulk or applications that require plated contacts other than nickel or specialized gold plating for ultra-low resistance signal paths. Also consider factory-original replacement parts if an exact OEM part number or cosmetic match is essential.

Pros & Cons

Pros

• Comprehensive mixed kit covers common sizes and wire ranges, reducing trips to reorder parts.
• Solid materials and plating improve corrosion resistance and long-term electrical reliability.
• Clear size and length specifications simplify matching to existing connector inserts.

Cons

• Not optimized for users who only need one size in large quantities, since it is a mixed pack.
• Requires a proper 4-indent crimping tool for best results; hand crimping can compromise the connection.

Specifications

Kit contents	340pcs (30 pairs size 12, 70 pairs size 16, 70 pairs size 20)
Size 12 wire range	14-12 AWG, cable dia 0.113-0.176 in
Size 12 max current	25A
Size 16 wire range	18-14 AWG, cable dia 0.075-0.14 in
Size 16 max current	13A
Size 20 wire range	22-16 AWG, cable dia 0.075-0.125 in
Material and plating	Phosphor bronze with nickel plating and tinned barrels

Our Verdict

The JRready ST6450 kit is a practical, value-focused choice for anyone who rebuilds Deutsch connectors regularly and needs accurate size coverage plus corrosion-resistant plating. It delivers expected fit and electrical capacity across sizes 12, 16 and 20, and is good value when mixed contact sizes are useful; however, buyers should pair it with a proper 4-indent crimper to achieve reliable crimps.

Frequently Asked Questions

Are these contacts compatible with Deutsch DTM series?
Yes, the contacts are designed for compatibility with DTP, DT, DTM and several HD series Deutsch connectors.

What crimp tool is recommended?
Use a professional 4-indent crimping tool as recommended by the manufacturer to ensure consistent, reliable crimps.

Do the terminals come pre-tinned?
The wire barrels are tinned and the contacts feature nickel plating over phosphor bronze for corrosion resistance.