2021 Lincoln Nautilus Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

10 Alternator / Generator parts are listed for the 2021 Lincoln Nautilus, from MOTORCRAFT, WAI GLOBAL, PURE ENERGY and 2 other brands. MOTORCRAFT GL8915 carries the "Popular" badge.

In the New grade, MOTORCRAFT and WAI GLOBAL supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is MOTORCRAFT GL8915.

In the Remanufactured grade, PURE ENERGY, REMY and TERREPOWER supply 6 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 11923.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

4 Alternator / Generator Pulley parts for the 2021 Lincoln Nautilus come from 3 brands — MOTORCRAFT, CONTINENTAL and LITENS.

This group includes CONTINENTAL 49946, LITENS 920027A and MOTORCRAFT GP777 and the remaining parts above.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

9 Battery parts for the 2021 Lincoln Nautilus come from 8 brands — ACDELCO, DEKA, FVP and 5 other brands. The "Popular" part is DEKA 9A94R. Every part fits both the 2.0L L4 Turbocharged and the 2.7L V6 Turbocharged.

In the AGM (Extended Life) grade, ACDELCO, DEKA, FVP and 4 other brands supply 8 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A94R.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT85094R.

Listed part numbers: DEKA 9A94R, FVP P94RAGM and ACDELCO 94RAGMHR, plus the other parts above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

MOTORCRAFT supplies the 7 Battery Cable parts for the 2021 Lincoln Nautilus.

This group includes MOTORCRAFT WC96973, MOTORCRAFT WC98214 and MOTORCRAFT WC98249 and the remaining parts above.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Battery Current Sensor parts are listed for the 2021 Lincoln Nautilus, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2021 Nautilus.

Listed part numbers: STANDARD MOTOR PRODUCTS BSC8 and WELLS 5S15941.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

9 Battery Terminal parts for the 2021 Lincoln Nautilus come from 2 brands — MOTORCRAFT and DORMAN. The "Popular" part is DORMAN 926879. Every part fits both the 2.0L L4 Turbocharged and the 2.7L V6 Turbocharged.

Listed part numbers: DORMAN 926879, MOTORCRAFT WT1002 and MOTORCRAFT WT1026, plus the other parts above.

This table covers the Blind Spot Detection sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2021 Lincoln Nautilus — STANDARD MOTOR PRODUCTS BSD138.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

15 Circuit Breaker parts for the 2021 Lincoln Nautilus come from 2 brands — MOTORCRAFT and STANDARD MOTOR PRODUCTS. The "Popular" part is MOTORCRAFT SW8879. Every part fits both the 2.0L L4 Turbocharged and the 2.7L V6 Turbocharged.

This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Cruise Control Distance Sensor parts for the 2021 Lincoln Nautilus come from 2 brands — DORMAN and STANDARD MOTOR PRODUCTS. Every part fits both the 2.0L L4 Turbocharged and the 2.7L V6 Turbocharged.

This group includes DORMAN 601728 and STANDARD MOTOR PRODUCTS CCD83.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

This group shows a single part: MOTORCRAFT SW9312.

This table covers the Fuse Box covers. Read more

This group shows a single part: MOTORCRAFT HLSC33.

This table covers the Lane Departure Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Lincoln Nautilus. All of them fit every engine offered in the 2021 Nautilus.

This group includes STANDARD MOTOR PRODUCTS LDS53 and STANDARD MOTOR PRODUCTS LDS52.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

10 Parking Aid Sensor parts are listed for the 2021 Lincoln Nautilus, from VARIOUS MFR, DORMAN, STANDARD MOTOR PRODUCTS and 2 other brands. DORMAN 684107 carries the "Popular" badge. All of them fit every engine offered in the 2021 Nautilus.

This table covers the Rain sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2021 Lincoln Nautilus — MOTORCRAFT WRS5.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

9 Speed Sensor parts for the 2021 Lincoln Nautilus come from 3 brands — MOTORCRAFT, STANDARD MOTOR PRODUCTS and WALKER PRODUCTS. The "Popular" part is MOTORCRAFT DY1221. 4 parts fit every engine; the other 5 are engine-specific.

Listed part numbers: MOTORCRAFT DY1221, MOTORCRAFT DY1287 and MOTORCRAFT DY1707, plus the other parts above.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

16 Starter Motor parts are listed for the 2021 Lincoln Nautilus, from PURE ENERGY, REMY, TERREPOWER and 5 other brands. MOTORCRAFT SA1151 carries the "Popular" badge.

New: 4 parts, from MOTORCRAFT, VALEO and WAI GLOBAL. A representative part number is MOTORCRAFT SA1151.

Remanufactured: 12 parts, from PURE ENERGY, REMY, TERREPOWER and 2 other brands. A representative part number is PURE ENERGY 12780.