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ACDelco 525-66 | Front Shock Absorber

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$65.44
Part Number
ACD525-66
UPC:
00021625509167
Condition:
New
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Heavy Duty Front Shock Absorber

BRAND: ACDelco

FEATURES:

  • Front Shock Absorber
  • Air Lift Strut Shock; Air Tube Tee; Compressor Tube Fitting; Coil Spring; Lift Support; Heavy Duty Shock; Monotube Air Lift Shock; Gas Strut Cartridge; Monotube Shock; Shock; Air Fill Valve; Spring Assisted Strut Shock; Stabilizer Bar; Stabilizer Bar Bushing; Stabilizer Shaft; Stabilizer Shaft Clamp; Steering Knuckle; Steering Linkage Shock; Strut Mount; Strut Nut; Strut; Yaw Sensor

SPECIFICS:

ACD_RemanDesNo
AdjustableNo
AltPA_107_mm278.384
AltPA_108_mm117.6
AltPA_3042_mm395.986
AltPA_38_mm117.6
AltPA_52_mm55.63
Body Diameter2.19
Boot IncludedNO
Coil Over Springs IncludedNo
Comparison Chart 1PL05_PL09_CC_MaintShockStrut.jpg
Comparison Chart 2PL09_CC_ChromedRodVsUncoatedRod.jpg
Compressed Length10.96
Dust ShieldYes
FAQ - A1Yes, 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 - A2Yes, 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 - A3Yes, 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 - A4Yes, 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 - A5Yes, 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 - Q1Is there a difference between a shock and a strut?
FAQ - Q2Do gas charged shocks or struts contain oil?
FAQ - Q3Can I check my vehicle's shocks for wear?
FAQ - Q4Should I have my vehicle aligned after replacing my shocks or struts?
FAQ - Q5Do I need different shocks for front, rear, left, or right applications?
Features & Benefits - B1Larger body allows for increased fluid capacity and cooler running for superior performance
Features & Benefits - B2Bonded iron piston and compression head provides exceptional durability
Features & Benefits - B3Extra-large 1-5/8 inch piston bore and 9/16 inch piston rod diameter for excellent stability and strength
Features & Benefits - B4Heavy duty arc-welded end mounts for maximum strength and greater resistance to damage
Features & Benefits - B5The super finished, chromed, piston rod provides anti-corrosion support, a more consistent wear surface, proper seal lubrication, and longer product life
Features & Benefits - B6Fit and ride tested to ensure that the shocks will fit intended vehicles and applications
Gas ChargedNO
Good Maintenance Practices - S1 B1Brakes
Good Maintenance Practices - S1 B2Tie rods
Good Maintenance Practices - S1 B3Ball joints
Good Maintenance Practices - S1 B4Tires
Good Maintenance Practices - S1 HYour 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 - S2 B1Leaking oil or wetness along the body of the shock or strut.
Good Maintenance Practices - S2 B2Broken mounts, worn or missing bushings.
Good Maintenance Practices - S2 B3Broken, damaged, or missing mounting hardware.
Good Maintenance Practices - S2 B4Severely dented reservoir tube, bent or scratched piston rod.
Good Maintenance Practices - S2 B5Cupped tire wear.
Good Maintenance Practices - S2 B6Damaged strut body springs, seats, and bushings.
Good Maintenance Practices - S2 B7Defective strut bearing or missing plate.
Good Maintenance Practices - S2 HTo inspect your shocks and struts to gauge wear, check for:
Height3.3
Length20
Lower Mount TypeStud
Marketing Statement - Product LineACDelco provides superior comfort, control, and durability through our Professional, Advantage, and Specialty Suspension lines. We offer a wide variety of parts, such as, suspension components, steering dampers, and lift supports. Preserving your vehicle's safety and driving comfort means also maintaining your vehicle's suspension. ACDelco Suspension Components, like shocks and struts, provide outstanding ride, comfort, and handling for your passenger car, light truck, or SUV. Keep your steering smooth and vibration-free with ACDelco Steering Dampers and use ACDelco Lift Supports to retain your vehicle's accessibility and convenience. To maintain vehicle safety and comfort, as well as convenience and performance, look no further than ACDelco Suspension Components.
Marketing Statement - Sub BrandWhen it comes to replacing your shocks and struts, ACDelco offers Specialty Shocks. Able to fit many GM sport utility and performance vehicles on the road today, ACDelco Specialty Shocks are built to handle demanding applications like towing and temporary loads. Get great ride and handling for your sport utility or performance vehicle with ACDelco Specialty Shocks.
Mkt_BrandQual_NameHeavy Duty
Mkt_State_Warranty_CALimited Lifetime Warranty as long as original purchaser still owns vehicle (Parts Only).
Mkt_State_Warranty_USLimited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details.
Mounting Hardware IncludedYes
Product DescriptionACDelco 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.
Programming RequiredNO
Shock Absorber Body End Measuring PointCenter Eye
Shock Absorber Rod End Measuring PointShoulder of Stem
Signs of Wear & Troubleshooting - S1 B1There is directional and steering wheel position instability
Signs of Wear & Troubleshooting - S1 B2Your brakes pull
Signs of Wear & Troubleshooting - S1 B3You notice worn or loose suspension or steering components
Signs of Wear & Troubleshooting - S1 B4There is excessive nose dive while braking
Signs of Wear & Troubleshooting - S1 B5Your vehicle has 'acceleration squat'
Signs of Wear & Troubleshooting - S1 B6Your vehicle does not return to a neutral position
Signs of Wear & Troubleshooting - S1 B7Your steering pulls
Signs of Wear & Troubleshooting - S1 B8There is a strut mount or bearing noise
Signs of Wear & Troubleshooting - S1 HIt could be time to replace your shocks or struts if, when driving on a flat smooth surface:
Signs of Wear & Troubleshooting - S2 B1Your ride is harsh, bumpy or shaky
Signs of Wear & Troubleshooting - S2 B2Your vehicle bounces excessively
Signs of Wear & Troubleshooting - S2 B3Your vehicle veers in side winds
Signs of Wear & Troubleshooting - S2 B4Your vehicle leans or sways while turning
Signs of Wear & Troubleshooting - S2 B5Your vehicle bounces excessively after hitting a bump
Signs of Wear & Troubleshooting - S2 B6Your vehicle bottoms out
Signs of Wear & Troubleshooting - S2 HIt could be time to replace your shocks or struts if, when driving on a surface with bumps and/or dips:
Signs of Wear & Troubleshooting - S3 B1If your vehicle's height seems lower than normal when measured
Signs of Wear & Troubleshooting - S3 B2If you notice fluid leakage from your vehicle's shocks or struts
Signs of Wear & Troubleshooting - S3 B3If your vehicle's shocks or struts have dented or heavily scratched housings or mounts
Signs of Wear & Troubleshooting - S3 HUneven 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 Length4.63
Upper Mount TypeStud
Vintage_Part_IndicatorN
Weight4.68
Width4.1

DOWNLOADS:

APPLICATIONS:

  • 2007-2010 GMC Sierra 3500 HD - Position: Front
    • Non Gas Charged
  • 2007-2007 GMC Sierra 3500 Classic - Position: Front
    • Non Gas Charged
  • 2007-2007 GMC Sierra 1500 HD Classic - Position: Front
    • Non Gas Charged
  • 2007-2010 Chevrolet Silverado 3500 HD - Position: Front
    • Non Gas Charged
  • 2001-2003 GMC Sierra 1500 HD - Position: Front
    • Non Gas Charged
  • 2002-2006 Chevrolet Avalanche 2500 - Position: Front
    • Exc. Electronic Ride Control Non Gas Charged
  • 2001-2010 GMC Sierra 2500 HD - Position: Front
    • Non Gas Charged
  • 2000-2011 Chevrolet Suburban 2500 - Position: Front
    • Exc. Z55 Auto Ride Suspension and Quadrasteer Non Gas Charged
  • 2000-2006 GMC Yukon XL 2500 - Position: Front
    • Exc. Hydraulic Self-Leveling System Non Gas Charged
  • 2007-2007 Chevrolet Silverado 2500 HD Classic - Position: Front
    • 9200# GVW Non Gas Charged
  • 2001-2009 Chevrolet Silverado 3500 - Position: Front
    • Non Gas Charged
  • 2001-2006 GMC Sierra 3500 - Position: Front
    • Non Gas Charged
  • 2005-2006 GMC Sierra 1500 HD - Position: Front
    • Non Gas Charged
  • 2007-2007 Chevrolet Silverado 1500 HD Classic - Position: Front
    • Non Gas Charged
  • 2001-2003 Chevrolet Silverado 1500 HD - Position: Front
    • Non Gas Charged
  • 1999-2008 Chevrolet Silverado 2500 - Position: Front
    • Non Gas Charged
  • 2005-2006 Chevrolet Silverado 1500 HD - Position: Front
    • Non Gas Charged
  • 2007-2007 Chevrolet Silverado 3500 Classic - Position: Front
    • Heavy Duty Non Gas Charged
  • 1999-2004 GMC Sierra 2500 - Position: Front
    • Non Gas Charged
  • 2001-2010 Chevrolet Silverado 2500 HD - Position: Front
    • 9200# GVW Non Gas Charged
1-year Replacement unlimited-mileage warranty
Part Type:
Aftermarket
Brand Description:
Front Shock Absorber
Product Description:
Heavy Duty Front Shock Absorber
Mounting Hardware Included:
Yes
Programming Required:
No
Adjustable:
No
Body Diameter (Inch):
2.19
Shock Absorber Rod End Measuring Point:
Shoulder of Stem
Lower Mount Type:
Stud
Upper Mount Type:
Stud
Coil Over Springs Included:
No
Travel Length (Inch):
4.63
Compressed Length (Inch):
10.96
Gas Charged:
No
Boot Included:
No
Dust Shield:
Yes
Shock Absorber Body End Measuring Point:
Center Eye
Hazardous Material:
No
Minimum Order Quantity:
1
Features & Benefits - Bullet 2:
Bonded iron piston and compression head provides exceptional durability
Features & Benefits - Bullet 4:
Heavy duty arc-welded end mounts for maximum strength and greater resistance to damage
Features & Benefits - Bullet 3:
Extra-large 1-5/8 inch piston bore and 9/16 inch piston rod diameter for excellent stability and strength
Life Cycle Status:
Announced
Features & Benefits - Bullet 1:
Larger body allows for increased fluid capacity and cooler running for superior performance
Life Cycle Status Description:
Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.
Weight (lb) (Pound):
4.68
Item Level GTIN:
00021625509167
Height (in) (Inch):
3.3
Width (in) (Inch):
4.1
Length (in) (Inch):
20
Signs of Wear & Troubleshooting - Section 1 - Bull:
There is a strut mount or bearing noise
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your steering pulls
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your vehicle does not return to a neutral position
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your vehicle has 'acceleration squat'
Signs of Wear & Troubleshooting - Section 1 - Bull:
There is excessive nose dive while braking
FAQ - Question 4:
Should I have my vehicle aligned after replacing my shocks or struts?
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 - Question 3:
Can I check my vehicle's shocks for wear?
FAQ - Question 1:
Is there a difference between a shock and a strut?
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.
Features & Benefits - Bullet 6:
Fit and ride tested to ensure that the shocks will fit intended vehicles and applications
FAQ - Question 2:
Do gas charged shocks or struts contain oil?
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
FAQ - Question 5:
Do I need different shocks for front, rear, left, or right applications?
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.
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 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.
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bounces excessively after hitting a bump
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bounces excessively
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bottoms out
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your ride is harsh, bumpy or shaky
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle veers in side winds
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle leans or sways while turning
Signs of Wear & Troubleshooting - Section 2 - Head:
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 - Bull:
If your vehicle's shocks or struts have dented or heavily scratched housings or mounts
Signs of Wear & Troubleshooting - Section 3 - Bull:
If your vehicle's height seems lower than normal when measured
Signs of Wear & Troubleshooting - Section 3 - Bull:
If you notice fluid leakage from your vehicle's shocks or struts
Good Maintenance Practices - Section 2 - Header:
To inspect your shocks and struts to gauge wear, check for:
Good Maintenance Practices - Section 2 - Bullet 7:
Defective strut bearing or missing plate.
Good Maintenance Practices - Section 2 - Bullet 6:
Damaged strut body springs, seats, and bushings.
Body Diameter (Millimeter):
55.63
Compressed Length (Millimeter):
278.384
Fully Open Length (in):
15.59 in
Shock Stroke (Millimeter):
117.6
Fully Open Length (mm):
395.986 mm
Travel Length (Millimeter):
117.6
Country of Origin:
Mexico
Weight - Each (Gross Pounds):
04.68
Weight - Case (Gross Pounds):
18.72
Height - Each (Inch):
03.30
Height - Case (Inch):
08.70
Length - Each (Inch):
20.00
Length - Case (Inch):
21.50
Width - Each (Inch):
04.10
Width - Case (Inch):
07.10



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