Connector Seal Manufacturer — Automotive Single Wire Seals, Cavity Plugs & Mat Seals
ARPL is a leading connector seal manufacturer in India, supplying automotive single wire seals (SWS), cavity plugs, mat seals, and interfacial seals to OEM and Tier-1 wiring harness manufacturers worldwide. Every connector seal we mould delivers IP67 / IP68 waterproof protection for automotive electrical connectors, meeting USCAR-2 and LV214 requirements. IATF 16949:2016 certified with 30+ years of rubber moulding expertise and 50M+ parts manufactured monthly.
Industrial Automotive Connector Seal — Built for Harsh Environments
ARPL manufactures industrial automotive connector seals designed for harsh operating environments, including heavy-duty vehicles, construction equipment, mining machinery, agricultural equipment, and off-highway automotive applications. These connector seals are engineered to resist oil, grease, dust, vibration, temperature extremes, and continuous mechanical stress.
Connector Seal Material Options
Available in all materials listed above, including self-lubricating (oil-bleeding) silicone and LSR grades. Custom hardness options from 40 to 70 Shore A, tailored to your application requirements.
About the ARPL Connector Seal — Single Wire Seals (SWS), Cavity Plugs & Mat Seals
The connector seal is a precision-moulded rubber sealing component that fits inside automotive connector housings to seal around individual wire entry points. With over 30 years of precision rubber moulding experience, ARPL specialises in manufacturing the connector seal in every standard automotive variant — single wire seal (SWS), cavity seal, terminal seal, and interfacial seal — for wiring harness connectors. Our connector seal range protects electrical connections from water, dust, oil, and environmental contaminants across passenger vehicles, commercial vehicles, and electric vehicle platforms.
Every part features three-lip and multi-lip configurations for redundant environmental protection, with dimensional tolerances of ±0.05mm ensuring perfect compression fit inside connector housings. We manufacture single wire seals, cavity plugs (dummy plugs / blind plugs), mat seals (family seals), interfacial seals, cable seals, and grommet seals in configurations from 2-pole to 36+ pole, serving major OEMs and Tier-1 wiring harness manufacturers globally. As a trusted supplier with proven OEM and Tier-1 supply credentials, ARPL produces 50M+ rubber sealing components every month from its IMT Manesar plant in Gurugram, Haryana.
Our manufacturing capabilities include compression moulding, transfer moulding, and LSR injection moulding, with cryogenic deflashing for excellent flash control (typically <0.05mm). All products meet IP67/IP68/IP6K9K protection ratings and comply with USCAR-2, LV214, and OEM-specific requirements. Self-lubricating (oil-bleeding) grades reduce wire insertion force by 40-60%, enabling compatibility with high-speed automated harness assembly lines operating at 2,000+ insertions per hour.
Single Wire Seal vs Cavity Plug (Dummy Plug) vs Mat Seal — Connector Seal Types Explained
Single wire seals (SWS) — also called cavity seals or terminal seals — fit inside connector housings to seal around individual wires using a three-lip configuration that creates multiple redundant sealing interfaces. Cavity plugs (dummy plugs or blind plugs) are solid moulded plugs that seal unused cavities where no wire terminal is present, preventing contaminant ingress through empty positions. Mat seals (family seals or interfacial seals) are multi-cavity sealing components that seal all wires simultaneously at the connector mating interface. ARPL manufactures all three types, including self-lubricating (oil-bleeding) grades for ECU, sensor, headlight, and high-voltage EV applications.
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Our Connector Seal Range — 36+ Variants in Every Material & Pole Configuration
Browse the complete ARPL connector seal range across pole configurations (2-pole to 36-pole), materials (Silicone VMQ/HCR/LSR, NBR, EPDM, FKM Viton®), and colours engineered for automotive and industrial wiring harness applications. Every connector seal in this catalogue is IATF 16949:2016 compliant and PPAP-supported.
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Connector Seal FAQ — Specifications, Materials & Sourcing
Find answers to common questions about the connector seal — automotive specifications, material options, IP ratings, and sourcing from a certified manufacturer in India
A connector seal (also called a single wire seal, terminal seal, or cavity seal) is a precision-moulded rubber component that fits inside an automotive connector housing to provide waterproof sealing around each individual wire. The connector seal prevents water, dust, and contaminants from entering the connector cavity, achieving IP67/IP68/IP6K9K environmental protection for wiring harness applications. ARPL manufactures every connector seal type — SWS, cavity plug, and mat seal — to IATF 16949:2016 quality standards.
Single wire seals (connector seals) seal around individual wires inside connector cavities. Cavity plugs (dummy seals) are solid rubber plugs that seal unused connector cavities where no wire is present. Mat seals (family seals) are larger sealing components that seal multiple wires simultaneously at the connector interface. ARPL manufactures all types as a complete wiring harness seal supplier.
ARPL offers silicone (VMQ/HCR/LSR) for high temperature applications (-55°C to +200°C), NBR for oil and fuel resistance (-40°C to +120°C), EPDM for weather resistance, and FKM (Viton) for extreme chemical and temperature exposure. We also offer self-lubricating (oil bleeding seal) grades for enhanced wire insertion.
Yes, ARPL manufactures specialised sealing solutions for electric vehicle applications. Our LSR seals are ideal for high-voltage battery connectors, BMS wiring harness seals, charging port connections, and motor controller interfaces. We supply EV OEMs and Tier-1 suppliers globally.
We manufacture from 2-pole to 36+ pole configurations, including 2, 3, 4, 6, 12, 14, 16, 34, and 36-pole options. Custom configurations are available for specific OEM connector housing designs and USCAR connector seal requirements.
Yes, ARPL is a custom manufacturer offering development from customer drawings or samples. We provide custom single wire seals, cavity plugs, mat seals, and grommet seals with various pole configurations, materials, colors, hardness options, and dimensions with full PPAP documentation support.
Yes, ARPL is an ISO 9001 and IATF 16949 certified connector seal manufacturer and automotive seal exporter India, exporting to USA, Germany, Mexico, Thailand, Vietnam, Turkey, UAE, Brazil, Poland, Czech Republic, Hungary, and other major automotive manufacturing hubs worldwide. We are a trusted rubber seal supplier India for global OEMs.
Every ARPL connector seal is engineered to deliver IP67 and IP68 waterproof protection as standard, with select grades qualified to IP6K9K for high-pressure spray applications. The connector seal achieves these ratings through three-lip and multi-lip sealing geometry, dimensional tolerances of ±0.05mm, and material selection (silicone VMQ/HCR/LSR, NBR, EPDM, FKM) matched to the operating environment. All ratings are validated to USCAR-2 and LV214 test protocols.
Lead time for a standard connector seal from ARPL's IMT Manesar plant is typically 4–6 weeks for first PPAP supply and 2–3 weeks for repeat production once tooling is approved. Custom connector seal development from drawings or samples takes 8–12 weeks including tooling. MOQ depends on the specific connector seal variant and material; please share part drawings or samples to receive a formal quotation.
Connector seal price depends on four main variables: material (NBR is the most economical, FKM and LSR are premium), pole configuration (2-pole to 36-pole), order volume, and tooling status (existing vs custom mould). ARPL offers competitive India-manufactured pricing with PPAP-grade quality. Share drawings or sample at info@arplglobal.com for a formal connector seal quotation.
ARPL's connector seal manufacturing plant is located at Plot No. 90, Sector 6, IMT Manesar, Gurugram, Haryana 122052, India. Established in 2005, the facility produces 50M+ rubber sealing components every month and is IATF 16949:2016 and ISO 9001:2015 certified. Manesar is one of India's premier automotive manufacturing hubs, giving ARPL direct logistics access to OEM and Tier-1 customers across NCR and pan-India.