1990 Cadillac DeVille Emissions Hardware
Keep Your 1990 Cadillac DeVille in Top Shape with Quality Emissions Hardware
Whether you’re repairing or upgrading your Emissions Hardware, using high-quality parts is key to keeping your 1990 Cadillac DeVille looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Diverter Valve Connectors and Idle Speed Control Motor Connectors. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1990 Cadillac DeVille Emissions Hardware at Advance Auto Parts is around $23.32, with a range that starts at $19.99 and goes up to $27.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Multi-Use Connector, Multi-Use Connector, and Multi-Use Connector start at just $19.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Emissions Hardware, don’t forget to check out other key components like Gas Caps and Oxygen Sensors. At Advance Auto Parts, we’re here to help you keep your 1990 Cadillac DeVille in peak condition, inside and out.
Find Your Specific 1990 Cadillac DeVille Emissions Hardwares
Looking for the perfect Emissions Hardware for your 1990 Cadillac DeVille? You’re in the right place. Below, you’ll find links to various types of Emissions Hardware that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Emissions Hardwares, ensuring durability and a precise fit for your Cadillac DeVille. Whether you’re driving a 1990 model or another popular model year like
1986,
1987,
1988,
1989,
1991,
1992,
1993,
1994, and
1995, we’ve got you covered. Purchasing Emissions Hardwares from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Emissions Hardwares that fit your vehicle.
Essential 1990 Cadillac DeVille Emissions Hardware
Carquest Premium – Multi-Use Connector (Part No.PTA1268)
from
$21.99
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 Premium – Multi-Use Connector (Part No.PTA1964)
from
$27.99
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 Premium – Multi-Use Connector (Part No.PTA1437)
from
$19.99
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
Popular 1990 Cadillac DeVille Emissions Hardware Categories
Most Popular Diverter Valve Connectors for 1990 Cadillac DeVilles
Enhance your 1990 Cadillac DeVille with one of the 2 Diverter Valve Connectors we have in stock, starting at just $21.99.
Carquest Premium – Multi-Use Connector (Part No.PTA1268)
from
$21.99
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 Premium – Multi-Use Connector (Part No.PTA1964)
from
$27.99
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
Best-Selling 1990 Cadillac DeVille Idle Speed Control Motor Connector
Upgrade your DeVille with our best-selling Idle Speed Control Motor Connector.
Carquest Premium – Multi-Use Connector (Part No.PTA1437)
from
$19.99
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
FAQs for 1990 Cadillac DeVille Emissions Hardwares
What are the best-selling Emissions Hardwares for 1990 Cadillac DeVilles?
Out of 3 Emissions Hardwares that fit 1990 Cadillac DeVilles, the following parts are the top sellers:
- Multi-Use Connector (12447013) – $21.99
- Multi-Use Connector (12447193) – $27.99
- Multi-Use Connector (12446852) – $19.99
What’s the price range for 1990 Cadillac DeVille Emissions Hardware?
The prices of Emissions Hardware for the 1990 Cadillac DeVille range from $19.99 up to $27.99 for the most premium parts.
What is the average price of an Emissions Hardware for a 1990 Cadillac DeVille?
The average price for Emissions Hardwares for the 1990 Cadillac DeVille is $23.32. Keep in mind the variety of part types within our Emissions Hardware category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Emissions Hardware for other Cadillac DeVille model years?
What are the cheapest Emissions Hardware for my 1990 Cadillac DeVille?
The cheapest 1990 Cadillac DeVille Emissions Hardware we carry are:
- Multi-Use Connector (12446852) – $19.99
- Multi-Use Connector (12447013) – $21.99
- Multi-Use Connector (12447193) – $27.99
Does Advance Auto Parts sell Emissions Hardware for any other 1990 Cadillac models?
Yes. We stock Emissions Hardware for 4 other popular 1990 Cadillac models. Some of the most popular are 1990 Eldorado Emissions Hardware, 1990 Seville Emissions Hardware, 1990 Fleetwood Emissions Hardware, 1990 Brougham Emissions Hardware, and 1990 Allante Emissions Hardware.
What types of Emissions Hardware do you sell for my 1990 Cadillac DeVille?
As of 11/2/25, these are some of the most in-demand types of Emissions Hardware for a 1990 Cadillac DeVille:
Can I get help with 1990 Cadillac DeVille Emissions Hardware orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Emissions Hardware and more.
What is your return policy for Cadillac DeVille Emissions Hardware?
Advance Auto Parts keeps returns simple. For new Cadillac DeVille Emissions Hardware and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.