6030-3991 MTW Series 3-Way Male Housing

Sumitomo 6030-3991 MTW Series 3-Way Male Housing

The Component: Genuine Sumitomo 6030-3991 3-way automotive unsealed connector housing plug. MTW Series 2.8mm (110) Type 3-position single-row male pin tab inline casing shroud (Natural White / Black Variant / Nylon 66 / Unsealed / Cable Mount Inline Shroud / Mating Tab Width 2.8mm).

Applications & Fitment: Designed as a primary factory original equipment (OE) non-sealed inline connection solution for low-voltage signal distribution and auxiliary power loops. Universally recognized across vintage and modern Japanese motorcycle architectures (prominently featured on classic Honda, Yamaha, Suzuki, and Kawasaki wiring harnesses) and legacy automotive sub-assemblies. Most notably specified as the definitive male inline interface for vintage stators, handle-bar switch assemblies, ignition sub-looms, rectifier layouts, and custom aftermarket electronics drops.

Engineered to provide a low-profile, clean-mating inline joint within dry vehicle zones like inner fairings, main frame rails, or under-seat trays. Highly vulnerable to structural latch cracking if pried roughly during cold climate servicing, or face-shroud tracking distortion if forced blindly against a misaligned female partner housing.

Technical Attributes:

- Manufacturer Part Number: 6030-3991 (Brand: Sumitomo Wiring Systems / Japan Genuine Class)

- Product Series Taxonomy: MTW Series / 2.8mm (.110 inch) Sizing Footprint Class (Non-Sealed Type)

- Configuration: 3-Position / 3-Way Male Pin Tab Housing, Single-Row 1x3 Inline Matrix Layout

- Connector Style: Cap Housing Shroud for Male Tab Contacts (Inline Free-Hanging Shroud)

- Connection Layout Type: Wire-to-Wire or Wire-to-Device Interconnect Channel

- Terminal Mating Sizing: 2.8mm (.110 inch) flat male tab footprint tracking layout geometry

- Mating Center-Line Pitch: 4.00mm horizontal cavity alignment spacing grid

- Base Structural Compound: Premium High-Grade Nylon 66 structural polymer resin

- Color Profiles available: Factory Solid Natural (White / Uncolored stock) and standard trade Black options

- Longest Structural Housing Face Dimension: 17.60mm nominal overall block tracking profile

- Fastening & Locking Architecture: Integrated robust heavy-duty external mechanical locking latch mechanism

- Environmental Sealing Level: Unsealed / Protected vehicle cabin interior, dry under-seat tray, and inner fairing enclosure design classification

- Circuit Performance Thresholds: Low-voltage electrical logic and power distribution infrastructure handling yielding an exceptionally clean path restriction capped at a 3.0mΩ Maximum baseline layout restriction

- Target Male Terminal Contacts (Not Included): Fits standard Sumitomo MTW 2.8mm (110) series male flat pin crimp terminals, including 0.30 - 0.85mm² thin-wall runs (22-18 AWG) or larger 1.25 - 2.00mm² power paths (16-14 AWG) (Available in plain brass or anti-corrosion tin-plated Sn finish variants)

- Mating Counterpart Housing: Pairs seamlessly inline as the direct male partner to Sumitomo MTW unsealed series 3-way female socket housing blocks, including the 6040-3111 inline receptacle plug (frequently cross-referenced under trade designation MTW-3S)

- Commercial Access: Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent tuning garages, loom remanufacturers, and trade auto-electrical stockists.