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ACDelco 45D2223OS - Suspension Ball Joint (Front Lower)
- BrandACDelco
- PositionFront Lower
- ManufacturerACDelco
- MPN45D2223OS
- FeaturesAdjustable : No
Ball Joint Assembly : Yes
Castle Nut Included : Yes
Cotter Pin Hole : No
Dust Boot Included : Yes
FAQ - Answer 1 : Yes. Replacing ball joints is not part of routine maintenance. However, they should be checked according to the manufacturer scheduled maintenance or mileage intervals, or at every oil and filter service. Most ball joints on later vehicles are sealed and do not require any grease. There are still some ball joints that should be greased every time the oil and filter is changed. Check your vehicle application for the correct service required.
FAQ - Answer 2 : Yes. It may change the alignment angles. Have the alignment checked after replacing any steering components.
FAQ - Question 1 : Does a ball joint require regular maintenance?
FAQ - Question 2 : Will replacing this part effect the vehicle alignment?
Features & Benefits - Bullet 1 : CNC-machined housing for consistency and high-quality
Features & Benefits - Bullet 2 : Undergoes extreme impact, wear and fatigue testing to help with quality and durability
Features & Benefits - Bullet 3 : Induction hardened to match OE fatigue life
Features & Benefits - Bullet 4 : Designed to perform to the application
Features & Benefits - Bullet 5 : Greaseable where applicable: Allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear
Features & Benefits - Bullet 6 : Corrosion-resistant coating
Features & Benefits - Bullet 7 : Manufactured at TS 16949-certified facilities to help with consistent high-quality
Good Maintenance Practices - Section 1 - Bullet 1 : Inspect or have your ball joints inspected for signs of wear. Over time, lubrication inside the ball joint can dry out, leading to joint wear. Even sealed ball joints can be exposed to air, and if the ball joint's protective boot is damaged, dirt and debris could further harm the life and function of the joint. Exposure to harsh driving conditions like pot holes, bumpy road surfaces, or road salt may also cause ball joints to fail, and worn ball joints could result loss of vehicle control or tire damage. Inspect your ball joints regularly, following exposure to events that may harm the component, or when you experience signs of ball joint wear.
Good Maintenance Practices - Section 1 - Bullet 2 : Use new installation components. If you replace your vehicle's ball joints, make sure to use new mounting hardware, rather than reusing the old.
Good Maintenance Practices - Section 1 - Bullet 3 : Avoid replacing only one ball joint at a time. If you choose to replace a ball joint, you should consider replacing ball joints as a set to make front end alignment easier.
Good Maintenance Practices - Section 1 - Bullet 4 : Installing a new ball joint can interfere with the alignment of your vehicle. Perform a full four-wheel vehicle alignment after any ball joint replacement.
Greaseable : Yes
Material : Steel
Meets or Exceeds Original Equipment Manufacture Specifications : Yes
Mounting Type : Press In
Product Description : An ACDelco Professional Ball Joint is a high quality replacement for many vehicles on the road today. It connects your vehicle's control arm to its steering knuckle. This ball joint features a polyurethane dust boot, a one-piece housing, and advanced bearings. It also has coated, heat-treated studs and includes all hardware. This premium aftermarket replacement component is manufactured to meet your expectations for fit, form, and function. âš WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Programming Required : No
Stud Type : Threaded
Suspension Grade Type : Premium
Type : Press In - Part TypeSuspension Ball Joint
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1995 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Mustang | GT (5.0 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Mustang | GTS (5.0 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Mustang | SVT Cobra (5.0 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1995 | Ford | Mustang | SVT Cobra R (5.8 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1996 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1997 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1998 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Lincoln | Town Car | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Lincoln | Town Car | Cartier (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Lincoln | Town Car | Executive (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1999 | Lincoln | Town Car | Signature (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Ford | Mustang | SVT Cobra R (5.4 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Lincoln | Town Car | Cartier (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2000 | Lincoln | Town Car | Executive (4.6 V8 GAS) | |
| 2001 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Mustang | GT Bullitt (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2001 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | Base (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | Base (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | LWB (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | LWB (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | LX (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | LX (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | Police Interceptor (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | Police Interceptor (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | S (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Crown Victoria | S (4.6 V8 CNG) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2002 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1994 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1994 | Ford | Mustang | GT (5.0 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 1994 | Ford | Mustang | SVT Cobra (5.0 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2003 | Ford | Mustang | Base (3.8 V6 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2003 | Ford | Mustang | GT (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2003 | Ford | Mustang | Mach 1 (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
| 2003 | Ford | Mustang | SVT Cobra (4.6 V8 GAS) | Notes: Oversized Outside Diameter (OD) |
Warranty Overview
At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, use our Return Portal or contact support.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For full details, please see our complete Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.










