2018 Nissan Altima Electrical Connector Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

56 Electrical connector parts are listed for the 2018 Nissan Altima, in 31 part types, covering both the 2.5L L4 and the 3.5L V6. Each one has a brand, a manufacturer part number and notes that say where it fits.

The connector system on the 2018 Nissan Altima supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Radio Connector (5 parts), Ignition Coil Connector (4 parts) and A/C Refrigerant Pressure Switch Connector (3 parts). The other 28 part types cover the remaining 44 parts.

A/C Compressor Clutch Coil Connector

Brand Part Number Markets Notes Buy
FOUR SEASONS Fits: all 2018 Altima engines 70065
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
2 Terminal Male
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This table covers the harness connectors at the A/C Compressor Clutch Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

A/C Compressor Connector

Brand Part Number Markets Notes Buy
GPD Fits: 2.5L L4 1712339
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Vehicle Side Compressor Wiring Harness
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2930
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the A/C Compressor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

A/C Refrigerant Pressure Switch Connector

Brand Part Number Markets Notes Buy
FOUR SEASONS Fits: all 2018 Altima engines 37276
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
3 Terminal FemaleRectangular Connector
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2458
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: OvalWire Gauge (GA): 18, 20
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UNITED MOTOR PRODUCTS Fits: all 2018 Altima engines CON205
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the A/C Refrigerant Pressure Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

ABS Wheel Speed Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2930
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2967
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front
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This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Accelerator Pedal Position Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2822
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: OvalHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S2822
Connector Shape: OvalHarness LengthInches: 16 1/2black
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This table covers the harness connectors at the Accelerator Pedal Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Alternator / Generator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2533
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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WELLS Fits: all 2018 Altima engines 1P4274
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Alternator / Generator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Blind Spot Detection Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2507
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits Right
Fitment notes — STANDARD MOTOR PRODUCTS S2507
Fits:
Right
or:
Left
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This table covers the harness connectors at the Blind Spot Detection Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Blower Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S3211
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Blower Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Brake Light Switch Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines HP4145
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
HandypackConnector Shape: Rectangle
Fitment notes — STANDARD MOTOR PRODUCTS HP4145
HandypackConnector Shape: RectangleBlack
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S1519
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: RectangleContact Terminal Material: Metal
Fitment notes — STANDARD MOTOR PRODUCTS S1519
Connector Shape: RectangleContact Terminal Material: MetalWiring Harness Length (In): 9Black
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WELLS Fits: all 2018 Altima engines 1P1789
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Terminal Quantity: 4Wire Quantity: 8
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This table covers the harness connectors at the Brake Light Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Crankshaft Position Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2844
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: MaleWire Gauge (GA): 20
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UNITED MOTOR PRODUCTS Fits: all 2018 Altima engines CON211
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Cruise Control Distance Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2863
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Cruise Control Distance Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fog / Driving Lamp Connector

Brand Part Number Markets Notes Buy
WELLS Fits: all 2018 Altima engines 1P1032
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Fog / Driving Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fuel Injector Connector

Brand Part Number Markets Notes Buy
GB REMANUFACTURING Fits: all 2018 Altima engines 5187
🇺🇸 US 🇨🇦 CA
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2330
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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WELLS Fits: all 2018 Altima engines 1P4050
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Fuel Injector. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fuel Sending Unit Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2994
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Fuel Sending Unit. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fuel Tank Pressure Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2327
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: Female
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This table covers the harness connectors at the Fuel Tank Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Grille Air Intake / Shutter Actuator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2824
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Grille Air Intake / Shutter Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Ignition Coil Connector

Brand Part Number Markets Notes Buy
DORMAN Fits: all 2018 Altima engines 645787
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2327
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: Female
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WALKER PRODUCTS Fits: all 2018 Altima engines 2701085
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Includes Boot and Spring
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WELLS Fits: all 2018 Altima engines 1P4056
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Manifold Pressure (MAP) Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2844
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: MaleWire Gauge (GA): 20
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STANDARD MOTOR PRODUCTS Fits: 3.5L V6 S2327
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: Female
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UNITED MOTOR PRODUCTS Fits: 2.5L L4 CON211
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Manifold Pressure (MAP) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Mass Air Flow (MAF) Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2824
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Mass Air Flow (MAF) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Parking Aid Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2844
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Gender: MaleWire Gauge (GA): 20
Fitment notes — STANDARD MOTOR PRODUCTS S2844
Gender: MaleWire Gauge (GA): 20Rear
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UNITED MOTOR PRODUCTS Fits: all 2018 Altima engines CON211
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Fits Rearor Back
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This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Radiator Fan Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S3220
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Radiator Fan Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Radio Connector

Brand Part Number Markets Notes Buy
METRA Popular Fits: all 2018 Altima engines AXBUCSNI326V
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Radio Display Wiring Harness
Fitment notes — METRA AXBUCSNI326V
Radio Display Wiring Harness
with 4.3 in. Display
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METRA Fits: all 2018 Altima engines AXBUCHNS
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Radio Add-On CAM Wiring Harness
Fitment notes — METRA AXBUCHNS
Radio Add-On CAM Wiring Harness
4.3"
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METRA Fits: all 2018 Altima engines AXBUCSNI246V
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Steering Wheel Control Harness
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METRA Fits: all 2018 Altima engines AXNIS24SWC6V
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Accessory Options Retention HarnessIncludes 12 Volt To 6 Volt Step Down converter
Fitment notes — METRA AXNIS24SWC6V
Accessory Options Retention HarnessIncludes 12 Volt To 6 Volt Step Down converter
Aftermarket Radio Must be SWC CapableUse When Retaining The OE Backup Camera Only~Will Not Work with Models Equipped with All Around Camera System
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METRA Fits: all 2018 Altima engines AXNIS32SWC6V
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Custom Fit 6V Converter HarnessIncludes AX-CAM6V 12-Volt To 6-Volt Converter
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This table covers the harness connectors at the Radio. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Repair Harness

Brand Part Number Markets Notes Buy
ROSTRA Fits: all 2018 Altima engines 3500171
🇺🇸 US 🇨🇦 CA
External Harness Repair Kit
Fitment notes — ROSTRA 3500171
External Harness Repair Kit
Trans. code RE0F10Dwith 22-Pin Connector & Wires
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This table covers the Repair harnesses.

Speed Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2458
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Connector Shape: OvalWire Gauge (GA): 18, 20
Fitment notes — STANDARD MOTOR PRODUCTS S2458
Connector Shape: OvalWire Gauge (GA): 18, 20
with 3 Female TerminalsTransmission Input
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UNITED MOTOR PRODUCTS Fits: all 2018 Altima engines CON205
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Transmission Input
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WELLS Fits: all 2018 Altima engines 1P4271
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Transmission SpeedAutomatic Trans.
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This table covers the harness connectors at the Speed Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Temperature Sender / Sensor Connector

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: all 2018 Altima engines 2701096
🇺🇸 US 🇨🇦 CA
Coolant Temperature Sensor Connector
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WALKER PRODUCTS Fits: all 2018 Altima engines 2701096
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
View on
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This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Throttle Control Actuator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: 2.5L L4 S2817
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Throttle Control Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Connector

Brand Part Number Markets Notes Buy
CURT Fits: all 2018 Altima engines 56339
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Custom Wiring Harness4-Way Flat
Fitment notes — CURT 56339
Custom Wiring Harness4-Way FlatCircuit Protected And Powered
3-Wire System
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TEKONSHA Fits: all 2018 Altima engines 118470
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite Module
Fitment notes — TEKONSHA 118470
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite Module
Drilling Required
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TEKONSHA Fits: all 2018 Altima engines 118731
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite HD Module
Fitment notes — TEKONSHA 118731
T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite HD Module
Drilling Required
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This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Vapor Canister Purge Valve / Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2888
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Vapor Canister Purge Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Vapor Canister Vent Valve / Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2888
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Vapor Canister Vent Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Variable Valve Timing (VVT) Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2898
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Variable Valve Timing (VVT) Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Voltage Regulator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Altima engines S2533
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the harness connectors at the Voltage Regulator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Buying Electrical Connector Parts for a 2018 Nissan Altima

On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.

  • Match the engine first. Some electrical connector parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Radio Connector and Ignition Coil Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2018 Nissan Altima?

Our catalog currently lists 56 electrical connector parts for the 2018 Nissan Altima across 31 subcategories and 13 brands, covering both the 2.5L L4 and the 3.5L V6. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2018 Nissan Altima engines?

Some do. 50 parts fit every engine; the other 6 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of electrical connector problems on a 2018 Nissan Altima?

Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Nissan Altima was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2018 Nissan Altima?

First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2018 Nissan Altima

Electrical Connector Parts for Other Nissan Altima Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.