1991 Infiniti Q45 Electrical Parts
Find Your Specific 1991 Infiniti Q45 Electrical Parts
Below you will find various in-demand Infiniti Electrical Parts, components and accessories for your 1991 Q45. Advance Auto Parts has popular Q45 parts like Driving Safety Monitoring System Parts, Electrical Connectors, Anti-Theft and Alarm Parts and more. You’ll also find aftermarket and OEM Electrical Parts for other Q45 model years including
1998,
1999,
2000,
2001,
2002,
2003,
2004,
2005,
2006 and more. Select a category of 1991 Infiniti Q45 Electrical Parts below and start saving instantly.
Popular 1991 Infiniti Q45 Electrical Parts Categories
Essential Electrical Parts for 1991 Infiniti Q45s
Carquest Premium – Multi-Use Connector (Part No.PTA1051)
from
$9.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Product constructed to meet all design and operating characteristics as intended by the manufacturer.
Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)
from
$62.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Electric Fuel Pump Inertia Switch automatically shuts off the fuel pump in the event of a collision, enhancing safety by preventing fuel leakage and reducing the risk of fire after an accident. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Multi-Use Connector (Part No.PTA1004)
from
$11.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Product constructed to meet all design and operating characteristics as intended by the manufacturer.
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Dorman – Ignition Coil Connector (Part No.645-787)
from
$31.99
This ignition coil connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
See More
Product Features:
- Direct replacement – this ignition coil connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Carquest Premium – Multi-Purpose Relay (Part No.RAA1694)
from
$20.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
See More
Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Multi-Purpose Relay (Part No.RAA1501)
from
$42.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
See More
Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Multi-Purpose Relay (Part No.RAA1742)
from
$27.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
See More
Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Engine Oil Pressure Switch (Part No.SBA1033)
from
$22.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Engine Oil Pressure Switch (Part No.SBA1026)
from
$32.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Driveworks – Engine Oil Pressure Switch (Part No.59010)
from
$12.05
Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.
Product Features:
See More
Product Features:
- Direct-fit OE replacement ensures ease of installation
- Designed to meet OE performance
- As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
- As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
Carquest – Engine Oil Pressure Switch (Part No.59A1015)
from
$18.99
Carquest Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Upgrade your 1991 Infiniti Q45 with Top-Quality Electrical Parts
When it comes to maintaining or upgrading your 1991 Infiniti Q45, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Infiniti or enhancing its overall performance, Electrical Parts are key to keeping your Q45 functioning at its best. At Advance Auto Parts, we offer a wide selection of 8 Electrical Parts for the 1991 Infiniti Q45, designed to meet your needs without breaking the bank.
From
Driving Safety Monitoring System Part
replacements to
Electrical Connectors
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Electrical Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Electrical Parts for your 1991 Infiniti Q45 at great prices.
Our Electrical Parts inventory for this model
ranges from just $9.99 to $62.99, with
an average price of $24.87.
Our 8 Electrical Parts in stock come from 4 trusted brands, so you’re sure to find the right part for your 1991 Infiniti Q45 without overspending.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Electrical Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1991 Infiniti Q45 is always ready to roll. We’re committed to providing you with everything you need to keep your Q45 in top shape, all in one place.
Start shopping confidently below for your 1991 Infiniti Q45!
Best-Selling Driving Safety Monitoring System Parts for 1991 Infiniti Q45s
Enhance the driving experience in your Infiniti with 1 quality Driving Safety Monitoring System Part components, starting at $62.99.
Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)
from
$62.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Electric Fuel Pump Inertia Switch automatically shuts off the fuel pump in the event of a collision, enhancing safety by preventing fuel leakage and reducing the risk of fire after an accident. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Most Popular 1991 Infiniti Q45 Electrical Connectors
Customize your Infiniti with 6 Electrical Connectors products
like Oil Pressure Switch and Senders,
Crankshaft Position Sensor Connectors, and
Fog Light Connectors, all
priced under $31.99.
Dorman – Ignition Coil Connector (Part No.645-787)
from
$31.99
This ignition coil connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
See More
Product Features:
- Direct replacement – this ignition coil connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Carquest Premium – Engine Oil Pressure Switch (Part No.SBA1033)
from
$22.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Carquest Premium – Multi-Use Connector (Part No.PTA1004)
from
$11.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- WVE electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Product constructed to meet all design and operating characteristics as intended by the manufacturer.
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Carquest – Engine Oil Pressure Switch (Part No.59A1015)
from
$18.99
Carquest Vehicle Solutions provides high-quality solutions for a wide range of applications. The Oil Pressure Sensor/Switch monitors the engine¿s oil pressure, providing critical feedback to the driver and engine control unit to prevent potential damage from low oil pressure conditions. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
Product Features:
See More
Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Driveworks – Engine Oil Pressure Switch (Part No.59010)
from
$12.05
Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.
Product Features:
See More
Product Features:
- Direct-fit OE replacement ensures ease of installation
- Designed to meet OE performance
- As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
- As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
Carquest Premium – Multi-Use Connector (Part No.PTA1051)
from
$9.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
See More
Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Product constructed to meet all design and operating characteristics as intended by the manufacturer.
Top Picks for 1991 Infiniti Q45 Anti-Theft and Alarm Parts
Upgrade Infiniti Q45s with top-quality Anti-Theft and Alarm Parts parts, including 1 OEM and aftermarket selections for your 1991 model.
Carquest Premium – Multi-Purpose Relay (Part No.RAA1742)
from
$27.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
See More
Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
FAQs for 1991 Infiniti Q45 Electrical Parts
Which Electrical Parts are best-sellers for 1991 Infiniti Q45s?
Out of 8 Electrical Parts that fit 1991 Infiniti Q45s, the following parts are the top sellers:
- Multi-Purpose Relay (12461379) – $27.99
- Engine Oil Pressure Switch (12459232) – $22.99
- Multi-Use Connector (12444442) – $11.99
What’s the price range for 1991 Infiniti Q45 Electrical Parts?
Electrical Part prices for the 1991 Infiniti Q45 start at $9.99 and go up to $62.99 for the most premium parts.
What’s the average price of a Electrical Part for a 1991 Infiniti Q45?
The average price for Electrical Parts for the 1991 Infiniti Q45 is $24.87. Keep in mind the variety of part types within our Electrical Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Electrical Parts for other Infiniti Q45 model years?
What are the cheapest Electrical Parts for my 1991 Infiniti Q45?
The cheapest 1991 Infiniti Q45 Electrical Parts we carry in stock are:
- Multi-Use Connector (12546375) – $9.99
- Multi-Use Connector (12444442) – $11.99
- Engine Oil Pressure Switch (11438007) – $12.05
- Engine Oil Pressure Switch (12478690) – $18.99
- Engine Oil Pressure Switch (12459232) – $22.99
What are the top-rated Electrical Parts that fit the 1991 Infiniti Q45?
Out of 1 reviews by customers, our 1991 Infiniti Q45 Electrical Parts have an average customer rating of . These are some of the highest-rated Electrical Part types for the 1991 Infiniti Q45 and their top-rated products:
- Electrical Connectors
- Ignition Coil Connector (11320325) – $31.99
What types of Electrical Parts do you sell for my 1991 Infiniti Q45?
As of 11/2/25, these are some of the most in-demand types of Electrical Parts for a 1991 Infiniti Q45:
Can I get help with 1991 Infiniti Q45 Electrical Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Infiniti Electrical Parts and more.
What is your return policy for Infiniti Q45 Electrical Parts?
Advance Auto Parts keeps returns simple. For new Infiniti Q45 Electrical Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
