What Is an AMPSEAL 16 Connector?
AMPSEAL 16 is TE Connectivity’s sealed heavy-duty connector for wire-to-wire, wire-to-device and wire-to-panel connections, widely used in commercial trucks, off-road and agricultural equipment as well as powertrain systems.
Its integrated housing comes with built-in CPA and TPA, eliminating separate lock parts and simplifying harness assembly. It is available in 2 to 12 positions, supporting HDSF size 16 stamped contacts or DEUTSCH solid contacts. Rated at 13 A per circuit, 250 V DC, it fits 14–20 AWG (0.5–2.5 mm²) wires.
There are two temperature versions: standard (-40°C to 125°C, UL94 HB) and high-temperature grey housing (-40°C to 150°C, UL94 V-0). It carries IP67 protection, upgradable to IP68 / IP6K9K with backshells. Tested to SAE J2030, it withstands 21 G RMS vibration and supports 50 mating cycles.
4 mechanical keying options plus colour coding prevent mismating. Optional wire seals and cavity plugs maintain sealing integrity. Typical uses include engine bays, aftertreatment units, chassis harnesses, sensors, actuators and gearboxes.
We offer cost-effective replacement connectors designed for OEM compatibility, delivering excellent value for money.
AMPSEAL 16 Connector Models

2 pin suit Connector
2-Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This sealed two-position connector features a red housing. Female OEM Reference: 776427-1; Male OEM Reference: 776534-1.Suitable for Engine Applications

3pin suit Connector
3Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This sealed 3-position connector

4pin suit Connector
4-Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This sealed 4-position connector has OEM Reference Number: 776487-1.

6pin Suit Connector
6-Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This is a sealed 6-position connector.

8pin Suit Connector
8-Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This is a sealed 8-position connector.

12pin Suit Connector
12-Pin Red Sealed AMPSEAL 16 Connector, Available in Female and Male Versions. This is a sealed 12-position connector.
AMPSEAL 16 Connector Specifications
| Housing Color | Red |
| Housing Material | PBT+G / PA66+GF listed; confirm exact grade |
| Listed Temperature Range | -40°C to 120°C |
| Listed MOQ | 200 pcs |
| Gender | Female Male |
| Specification | 776427-1 776534-1 776487-1 Etc. |
Sealed AMPSEAL 16 Connectors for Demanding Environments
Sealing parts prevent moisture and dirt ingress. Protection rating is valid only with complete assembly, matched terminals and seals, correct installation and verified test results.
Housing and Sealing Compatibility
Validate matched compatibility among housing, terminal and seal. Mechanical fit alone is insufficient; seals must correspond to specified wire size and terminal style.
Temperature and Environmental Requirements
Cross-check published operating temperature range against your application specs. Ask for technical data if the connector faces fluid exposure, vibration or repeated thermal cycling.
IP Rating Verification
Do not assume IP rating just because it is sealed. Obtain official test reports for confirmed ingress protection grades.

AMPSEAL 16 Terminals and Seals
YUEQING CV Auto Parts Department offers AMPSEAL supplies matching terminals and sealing kits for AMPSEAL 16. For a full connector assembly, confirm terminal part numbers, wire gauge, seal layout and housing compatibility.
Matching Crimp Terminals:Validate terminal dimension, wire range, contact layout and plating specs against relevant standards.
Cable Seals & Connector Seals:Select seals matched to housing, terminal layout and wire size. Do not assume identical seals fit all housings.
Full Connector Assembly Requirements:When requesting quotations, clarify whether you only need housings or complete assemblies with terminals and seals. Confirm the scope of supply for each part number.
AMPSEAL 16 Compatible Connector Supply from YUEQING CV Auto Parts Department offers
YUEQING CV Auto Parts Department offers connector housings and related components compatible with AMPSEAL 16. Customers can provide reference numbers, samples, connector photos, or technical drawings to help identify the required products.

Product Identification
Share OEM part number and photos for fast part identification.

Related Component Sourcing
Confirm matching terminals, seals and auxiliary parts for your chosen connector.

Customization Inquiry
Submit drawings, dimension specs, application info and estimated quantity for feasibility assessment.

AMPSEAL 16 Compatible Connectors
All our products are produced on high-precision production equipment, enabling precision molding and consistent tolerance control. We follow a full pre-shipment inspection process to ensure stable and reliable product performance.
- Injection Molding
- High‑precision Stamping
- Comprehensive Testing
- Automated Assembly
- Raw Material Processing

Automotive Connector Certifications
We maintain a complete set of certifications to assure quality for automotive connectors, wire harnesses and related accessories, including:
- CE
- ROHS
- UL94‑V0 Flammability Report
- IP Protection Test Report
With continuous product development and innovation, we will obtain more certifications in the future.
Frequently Asked Questions
Some listed models are described as sealed, but the applicable IP rating must be confirmed using model-specific technical documentation.
Yes, YUEQING CV Auto Parts Department’s public catalog includes the 2-pin models 776427-1 and 776534-1, as well as the 4-pin model 776487-1.
Provide the OEM reference number, YUEQING CV Auto Parts Department part number, connector photos or technical drawing, then verify the mating interface and terminal configuration.

