2 Pole Black NBR Connector Seal
Oil-Resistant Connector Cavity Seal for Automotive Wiring Harness Applications
Key Features
| Material | NBR (Nitrile Rubber) |
| Pole Configuration | 2 Pole / 2 Pin |
| Operating Temperature | -40°C to +120°C |
| Hardness | 50 ± 5 Shore A (Multiple options available) |
| IP Rating | IP67 / IP68 |
| Standard Color | Black (Custom colors available) |
Product Overview
The 2 Pole Black NBR Connector Seal is a precision-moulded connector cavity seal designed to sit inside female automotive connector housings. This terminal seal creates a reliable environmental barrier around each wire entry point, preventing water, dust, oil mist, and other contaminants from entering the electrical system. When properly installed in a compatible connector housing, it supports IP67 and IP68 waterproof performance for demanding automotive and industrial environments.
Manufactured from premium NBR (Nitrile Rubber), this connector seal offers excellent resistance to oils, fuels, and hydraulic fluids—making it particularly well-suited for engine bay, underbody, and transmission area applications where hydrocarbon exposure is common. The controlled compression design ensures consistent sealing force around wire insulation while maintaining stable compression set over the seal's service life.
Why Choose This NBR Connector Seal?
- Oil and fuel resistant – NBR excels in environments with petroleum-based fluids
- Reliable sealing under vibration – maintains compression in high-vibration automotive applications
- Cost-effective material choice – excellent performance-to-cost ratio for volume production
- Stable temperature performance – operates reliably from -40°C to +120°C
- Compatible with standard connector families – designed for common automotive wiring harness systems
2 Pole Black NBR Connector Seal – Automotive Connector Cavity Seal Manufacturer in India
ARPL manufactures high-quality 2 pole black NBR connector seals for automotive wiring harness applications and industrial connector systems. As a leading automotive connector seal manufacturer in India, we supply connector cavity seals to OEM and Tier-1 wiring harness manufacturers serving global automotive programs. This rubber connector seal for automotive wiring harness applications provides essential environmental protection for sensitive electrical connections.
The 2 pin connector cavity seal is installed inside female connector housings where it seals around individual wires entering the connector. This design prevents ingress of water, dust, oil mist, and road contaminants that could cause electrical failures. Applications include engine bay connectors, underbody wiring harnesses, cabin electrical systems, sensor connections, lighting assemblies, and EV sub-systems where environmental sealing is critical.
NBR Material Properties
This connector seal is manufactured from NBR (Nitrile Rubber), selected specifically for its excellent resistance to petroleum-based oils, fuels, brake fluids, and hydraulic fluids. NBR connector seals are the preferred choice for applications with hydrocarbon exposure in the automotive engine compartment and underbody zones.
- Oil and Fuel Resistance: NBR provides excellent sealing performance in environments exposed to engine oils, transmission fluids, diesel, and petrol
- Good Sealing Under Vibration: The material maintains its sealing characteristics under continuous vibration typical of automotive applications
- Stable Compression Set: NBR exhibits controlled compression set behaviour at typical automotive operating temperatures
- Operating Temperature: Standard NBR connector seals operate from -40°C to +120°C
ARPL also offers alternative materials: EPDM for weather/ozone resistance, HNBR for enhanced temperature and oil resistance, FKM (Viton) for extreme conditions, and Silicone for the widest temperature range (-55°C to +200°C).
Why Choose ARPL as Your Connector Seal Manufacturer
With over 30 years of rubber moulding experience, ARPL delivers manufacturing excellence in precision sealing components including high-precision tooling, flash control with cryogenic deflashing, zero-defect quality systems, and full PPAP support. ISO 9001:2015 and IATF 16949:2016 certified, we support customers in Germany, USA, Mexico, Turkey, Brazil, UK, UAE, Thailand, Vietnam, Poland, Czech Republic, and Hungary.
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Industry Applications for NBR Connector Seals
Our 2 Pole Black NBR Connector Seal is engineered to provide reliable environmental protection across demanding automotive, commercial vehicle, and industrial applications. The oil-resistant NBR compound makes this connector cavity seal ideal for applications where exposure to petroleum-based fluids, fuels, and lubricants is common.
Harness Connectors
Connectors
(Temp / Pressure)
(Headlamp / Tail)
Connectors
Connectors
Connections
Wiring
Vehicle Segment Applications
ARPL supplies NBR connector seals to OEMs and Tier-1 wiring harness manufacturers serving diverse vehicle segments:
- Passenger Cars: Compact, sedan, SUV, and luxury vehicle wiring harness connector sealing
- Commercial Vehicles: Trucks, buses, and light commercial vehicle electrical systems
- Two-Wheelers: Motorcycle and scooter wiring harness connectors
- Electric Vehicles (EV): Battery management system (BMS), motor controller, and charging system connectors
- Hybrid Electric Vehicles (HEV/PHEV): High-voltage and low-voltage system connector sealing
- Off-Highway Vehicles: Construction equipment, agricultural machinery, and mining vehicle connectors
- Three-Wheelers: Auto-rickshaw and cargo vehicle electrical connectors
Typical Operating Environments
NBR connector seals excel in environments where oil and fuel resistance is critical:
- Engine Compartment: High temperature (up to +120°C), oil mist, fuel vapor, and continuous vibration exposure
- Transmission Area: ATF fluid exposure, high temperature, and mechanical vibration
- Underbody Zone: Splash water, mud, road salt, gravel impact, and temperature cycling
- Fuel System: Petrol, diesel, and biodiesel fuel exposure in fuel pump and injector connectors
- Brake System: DOT brake fluid compatibility in ABS sensor and hydraulic unit connectors
- Steering System: Power steering fluid exposure in EPS and hydraulic steering connectors
- HVAC System: Refrigerant-adjacent applications in compressor and blower motor connectors
- Lighting System: Headlamp, tail lamp, fog lamp, and DRL connector moisture protection
OEM Connector System Compatibility
ARPL develops connector cavity seals compatible with major automotive connector systems used globally by OEMs and Tier-1 suppliers:
- Compatible with standard 2-way female connector housings from leading connector manufacturers
- Custom development available for proprietary OEM connector designs
- Supports single-wire and multi-wire sealing configurations
- Available in multiple wire gauge accommodations (0.5mm² to 2.5mm² typical)
- Designed to meet automotive connector sealing standards including USCAR, LV214, and OEM-specific requirements
Industry Standards & Compliance
Our NBR connector seals are manufactured to meet stringent automotive industry requirements:
- IP67/IP68 Protection: Dust-tight and water immersion resistant when properly installed
- Temperature Range: -40°C to +120°C continuous operation
- Material Compliance: RoHS compliant, REACH compliant, ELV compliant
- Quality Certification: Manufactured under ISO 9001:2015 and IATF 16949:2016 quality management systems
- Automotive Testing: Tested per OEM specifications for compression set, fluid resistance, and aging
- PPAP Support: Full Production Part Approval Process documentation available
Why Choose NBR Material for Connector Seals?
Nitrile Butadiene Rubber (NBR) is the preferred elastomer for automotive connector seals in oil-exposed environments due to its unique combination of properties:
- Superior Oil Resistance: Excellent compatibility with engine oils, transmission fluids, and hydraulic oils
- Fuel Resistance: Resistant to petrol, diesel, and biodiesel fuels
- Cost-Effective: More economical than fluoroelastomers (FKM) for moderate temperature applications
- Good Compression Set: Maintains sealing force over extended service life
- Abrasion Resistance: Withstands wire insertion and connector mating cycles
- Wide Hardness Range: Available from 40 to 80 Shore A to suit different sealing requirements
Looking for a different material? ARPL also manufactures connector seals in Silicone for high-temperature applications, EPDM for weather sealing, HNBR for extended temperature range with oil resistance, and FKM (Viton) for extreme chemical and temperature resistance. Contact our engineering team for material selection assistance.
Need Custom Sealing Solutions?
Our engineering team can develop tailored solutions for your specific requirements. From material selection to custom designs, we're here to help.
Frequently Asked Questions
Find answers to common questions about NBR connector seals for automotive applications
A 2 pole black NBR connector seal is a rubber connector cavity seal that fits inside female automotive connector housings to seal around individual wires. It prevents water, dust, oil, and contaminants from entering the electrical system. NBR connector seals are commonly used in engine bay connectors, underbody wiring harnesses, sensor connections, ECU/TCU connectors, and lighting systems where oil and fuel resistance is required.
NBR connector seals offer excellent oil, fuel, and hydrocarbon resistance, making them ideal for engine compartment and fuel system applications (-40C to +120C). Silicone connector seals provide wider temperature range (-55C to +200C) and better ozone/UV resistance, preferred for high-temperature exhaust sensors or outdoor applications. ARPL can recommend the optimal material based on your specific environment.
When used in a properly designed connector system with correct wire diameter matching and appropriate connector housing, NBR connector seals can achieve IP67 (dust-tight, protected against temporary immersion) or IP68 (dust-tight, protected against continuous immersion) protection ratings.
NBR connector seals operate reliably from -40C to +120C, making them suitable for engine bay, underbody, cabin, and general automotive environments. They excel in areas exposed to oils, fuels, brake fluids, and hydraulic fluids. For temperatures above 120C or extreme cold, ARPL can offer HNBR or silicone alternatives.
Yes, ARPL offers complete custom development capability for connector cavity seals. We can work from customer drawings, reverse-engineer samples, or develop new designs for specific connector families. Our engineering team supports different pole configurations, colours, materials (NBR, EPDM, HNBR, FKM, Silicone), and hardness grades.
Yes, ARPL is an established exporter of automotive connector seals serving OEM and Tier-1 wiring harness manufacturers globally. We supply to major automotive hubs including Germany, USA, Mexico, Turkey, Brazil, UK, UAE, Thailand, Vietnam, Poland, Czech Republic, Hungary, and other manufacturing regions.
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