Related Products
Front Shock Absorber - ACDelco (525-66)
- 525-66
- Sale Price: $69.70
Review Fitment & Product Details
Details
- Brand:
- SKU:
525-66
- GTIN: 00021625509167
- UPC: 021625509167
- Positions: Front
- Other Names:
88959173
- Description: ACDelco Specialty Heavy Duty Shocks are specifically designed for commercial or severe application use on light trucks and vans, to help handle heavy loads. Designed to handle the heavy-duty demands of fleet applications, ACDelco Specialty Heavy Duty Shocks respond with stability and control. These shocks feature an oversized (1-5/8 in) piston bore, bonded iron piston and compression heads, large piston and piston rod diameter, and heavy duty arc welded end mounts. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Condition: New
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| Brand | ACDelco Gold |
| Adjustable | No |
| Body Diameter | 2.19 55.63 |
| Boot Included | No |
| Coil Over Springs Included | No |
| Compressed Length | 10.96 278.384 |
| Dust Shield | Yes |
| FAQ - Answer 1 | Yes, though shocks and struts perform a similar function, they vary greatly in their design. Struts are an integral part of a vehicle's suspension system, providing structural support for the vehicle and, as such, are a safety subsystem. Shocks work separately from any structural function, simply absorbing and damping the bumps from the road. |
| FAQ - Answer 2 | Yes, all shocks and struts use hydraulic fluid (oil) to control damping. A gas charged shock or strut uses high-pressure nitrogen gas to reduce oil foaming during high-speed damping, and therefore maintains performance. |
| FAQ - Answer 3 | Yes, it is possible to do a quick check at home for wear on your vehicle's shocks or struts. You can look for any physical damage to the shock or strut housing or any leaking - this is especially common on rear units that tend to have stones kicked up by the front wheels. You can also perform a bounce test by taking each corner of the vehicle and pushing down hard. The corner should drop, rise and settle again. If the body continues to move up and down, there's a good chance your shocks need to be replaced. Though these home tests can indicate worn shocks or struts, it is also recommended that you take your vehicle to a qualified service technician and let them do a thorough inspection every 12 months or 12,000 miles. |
| FAQ - Answer 4 | Yes, if you are replacing your vehicle's struts. However, it is not necessary to get your vehicle aligned when replacing your vehicle's shocks unless there was or is a previous issue. |
| FAQ - Answer 5 | Yes, it is important to choose the correct shock or strut for your vehicle model and year, as well as for the location in the vehicle. |
| FAQ - Question 1 | Is there a difference between a shock and a strut? |
| FAQ - Question 2 | Do gas charged shocks or struts contain oil? |
| FAQ - Question 3 | Can I check my vehicle's shocks for wear? |
| FAQ - Question 4 | Should I have my vehicle aligned after replacing my shocks or struts? |
| FAQ - Question 5 | Do I need different shocks for front, rear, left, or right applications? |
| Features & Benefits - Bullet 1 | Larger body allows for increased fluid capacity and cooler running for superior performance |
| Features & Benefits - Bullet 2 | Bonded iron piston and compression head provides exceptional durability |
| Features & Benefits - Bullet 3 | Extra-large 1-5/8 inch piston bore and 9/16 inch piston rod diameter for excellent stability and strength |
| Features & Benefits - Bullet 4 | Heavy duty arc-welded end mounts for maximum strength and greater resistance to damage |
| Features & Benefits - Bullet 5 | The super finished, chromed, piston rod provides anti-corrosion support, a more consistent wear surface, proper seal lubrication, and longer product life |
| Features & Benefits - Bullet 6 | Fit and ride tested to ensure that the shocks will fit intended vehicles and applications |
| Fully Open Length (in) | 15.59in |
| Fully Open Length (mm) | 395.986mm |
| Gas Charged | No |
| Good Maintenance Practices - Section 1 - Bullet 1 | Brakes |
| Good Maintenance Practices - Section 1 - Bullet 2 | Tie rods |
| Good Maintenance Practices - Section 1 - Bullet 3 | Ball joints |
| Good Maintenance Practices - Section 1 - Bullet 4 | Tires |
| Good Maintenance Practices - Section 1 - Header | Your vehicle's shocks and struts slowly deteriorate over time, though this wear is normally difficult to detect. To maximize your vehicle's ride comfort and safety, it is recommended to replace your vehicle's shocks and struts every 50,000 miles. Worn shocks and struts can also cause additional wear to other vehicle components. Affected components include: |
| Good Maintenance Practices - Section 2 - Bullet 1 | Leaking oil or wetness along the body of the shock or strut. |
| Good Maintenance Practices - Section 2 - Bullet 2 | Broken mounts, worn or missing bushings. |
| Good Maintenance Practices - Section 2 - Bullet 3 | Broken, damaged, or missing mounting hardware. |
| Good Maintenance Practices - Section 2 - Bullet 4 | Severely dented reservoir tube, bent or scratched piston rod. |
| Good Maintenance Practices - Section 2 - Bullet 5 | Cupped tire wear. |
| Good Maintenance Practices - Section 2 - Bullet 6 | Damaged strut body springs, seats, and bushings. |
| Good Maintenance Practices - Section 2 - Bullet 7 | Defective strut bearing or missing plate. |
| Good Maintenance Practices - Section 2 - Header | To inspect your shocks and struts to gauge wear, check for: |
| Height (in) | 3.3 |
| Length (in) | 20 |
| Lower Mount Type | Stud |
| Mounting Hardware Included | Yes |
| Programming Required | No |
| Shock Absorber Body End Measuring Point | Center Eye |
| Shock Absorber Rod End Measuring Point | Shoulder of Stem |
| Shock Stroke | 117.6 |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | There is excessive nose dive while braking |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Your vehicle has 'acceleration squat' |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 3 | Your vehicle does not return to a neutral position |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | Your steering pulls |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 5 | There is a strut mount or bearing noise |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 1 | Your ride is harsh, bumpy or shaky |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 2 | Your vehicle bounces excessively |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 3 | Your vehicle veers in side winds |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 4 | Your vehicle leans or sways while turning |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 5 | Your vehicle bounces excessively after hitting a bump |
| Signs of Wear & Troubleshooting - Section 2 - Bullet 6 | Your vehicle bottoms out |
| Signs of Wear & Troubleshooting - Section 2 - Header | It could be time to replace your shocks or struts if, when driving on a surface with bumps and/or dips: |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 1 | If your vehicle's height seems lower than normal when measured |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 2 | If you notice fluid leakage from your vehicle's shocks or struts |
| Signs of Wear & Troubleshooting - Section 3 - Bullet 3 | If your vehicle's shocks or struts have dented or heavily scratched housings or mounts |
| Signs of Wear & Troubleshooting - Section 3 - Header | Uneven patches of wear on the edges of your tire can be a sign of weak ride control (shocks or struts). This wear, called cupping, appears as scalloped dips around the surface of the tread. Other signs it could be time to replace your shocks or struts include: |
| Travel Length | 4.63 117.6 |
| Upper Mount Type | Stud |
| Weight (lb) | 4.68 |
| Width (in) | 4.1 |
Features and Benefits
Interchange
Interchange
Policies
Policies
Product Reviews
Product Reviews
Brand
ACDelco
Store
AutoNationParts.com
Genuine OEM & Premium Aftermarket Replacement Parts Online
Shop high-quality OEM and aftermarket components online at AutoNationParts.com. We provide reliable replacement parts, factory maintenance essentials, and specialized hardware performance upgrades for nearly every major vehicle make and model on the road.
Currently viewing detailed specifications and pricing for Front Shock Absorber (SKU: 525-66). You can explore our master catalog of auto parts categories, or jump directly into core high-demand vehicle infrastructure systems below:
- Brake Pads & Brake Systems
- Engine & Cabin Air Filters
- Batteries & Electrical Parts
- Suspension & Steering Components
- Fluids & Maintenance Products
With strategic nationwide distribution hubs, orders for Front Shock Absorber and related catalog items process immediately and ship out in 1–2 business days. Learn more about our fast domestic delivery windows via our shipping policy.
Verifying Fitment for Front Shock Absorber
To guarantee 100% complete compatibility before checking out, ensure you cross-reference your vehicle's unique 17-digit VIN (Vehicle Identification Number) or enter your exact manufacturer part number. Because automotive engineering frameworks shift across model years and specific engine packages, confirming your mechanical alignment ensures a flawless installation.
Explore related systems in our database: Brake Parts | Filters | Suspension
OEM Performance vs. Premium Aftermarket Alternatives
Whether you choose an OEM (Original Equipment Manufacturer) part or a trusted third-party alternative, AutoNation Parts ensures that your technical hardware fulfills rigorous road-testing and assembly standards.
- OEM Inventory: Offers exact factory engineering specs, direct electrical or mechanical compatibility, and protects existing manufacturer warranties.
- Aftermarket Options: Provides highly cost-effective, dependable solutions with wider availability across legacy vehicle models.
Browse our complete catalog pathway: OEM Auto Parts Collection | Aftermarket Alternatives
Fast Nationwide Shipping (1–2 Business Days)
We leverage a robust, interconnected network of regional U.S. fulfillment facilities to route your components via the most efficient transport channels, keeping vehicle downtime to an absolute minimum:
- Chicago – Midwest logistics hub
- Atlanta – Southeast distribution network
- Houston – Central regional fulfillment
- Los Angeles – West Coast shipping facility
- Miami – East Coast distribution hub
Learn more: Shipping Information & Logistics Rates
Why Source Your Inventory from AutoNation Parts?
- Extensive OEM and premium aftermarket parts in one centralized marketplace
- Fast nationwide shipping with tracking transparency to reduce project downtime
- Trusted automotive retailer dedicated to component precision and customer support
- Secure encrypted checkout paired with verified real-time active inventory data
- Catalog coverage spanning the majority of vehicle model configurations on the road
Shop AutoNation Parts Online Today
OEM & Aftermarket Auto Parts FAQ | AutoNation Parts
What are OEM auto parts?
OEM auto parts are original equipment components manufactured directly by the vehicle factory or licensed suppliers to match your vehicle’s original assembly specifications for an exact fit and flawless performance.
What are aftermarket auto parts?
Aftermarket auto parts are components produced by independent third-party manufacturers. They serve as highly affordable, readily available replacement options or heavy-duty performance upgrades.
How do I ensure Front Shock Absorber fits my exact vehicle?
The fastest way to guarantee fitment for SKU 525-66 is to use our advanced Search by Vehicle tool to isolate components by your unique 17-digit VIN, or filter results by selecting your year, make, model, and trim level.
Can I apply promotional discounts to routine maintenance orders?
Yes. For qualifying orders of common maintenance components such as engine filters, cabin air filters, ignition spark plugs, or fluids, you can enter promo code MAINT5SAVE at checkout to apply direct tiered savings.
How fast is shipping for auto parts online?
Most in-stock orders process and depart our distribution centers within 1–2 business days. We utilize multiple domestic regional hubs to route shipments via the most efficient paths possible.
Is it safe to buy auto parts online?
Yes. AutoNation Parts integrates secure checkout protocols, strict data encryption, and fully verified real-time warehouse inventory to make sure your online purchasing experience is secure and dependable.