ACDelco 530-9 Shock Absorber

Shock Absorber

Fits: Buick Centurion, Buick Commercial Chassis, Buick Electra, Buick Estate Wagon, Buick LeSabre, Buick Riviera, Buick Roadmaster, Cadillac Brougham, Cadillac Commercial Chassis, Cadillac DeVille, Cadillac Fleetwood, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet Camaro, Chevrolet Caprice, Chevrolet Impala, Chevrolet Kingswood, Chevrolet Townsman, Ford Country Sedan, Ford Country Squire, Ford Crown Victoria, Ford Custom, Ford Custom 500, Ford Elite, Ford Galaxie, Ford Galaxie 500, Ford Grand Marquis, Ford LTD, Ford LTD Crown Victoria, Ford LTD II, Ford Ranch Wagon, Ford Thunderbird, Ford Torino, Lincoln Continental, Lincoln Mark III, Lincoln Mark IV, Lincoln Mark V, Lincoln Mark VI, Lincoln Town Car, Mercury Brougham, Mercury Colony Park, Mercury Commuter, Mercury Cougar, Mercury Grand Marquis, Mercury Marauder, Mercury Marquis, Mercury Montclair, Mercury Montego, Mercury Monterey

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ACDelco Professional Premium Gas Charged Shocks are twin-tube passive replacement shocks for passenger cars, vans, SUVs, and light trucks. These shocks have a high pressure nitrogen gas charge along with chrome finished piston rods and drawn over mandrel (DOM) pressure cylinders. For additional ride support, ACDelco Professional Premium Gas Charged Shocks utilize premium Road Response Valving Technology that automatically adjusts to provide comfort and extra control by responding to changing road conditions during normal driving situations, and improved handling under extreme road conditions.



  • A hardened, chromed piston rod with micro cracks provides an ultra-smooth, self-lubricating, corrosion- and scratch-resistant surface, helping increase seal life
  • Drawn over mandrel (DOM) pressure cylinder for high quality sealing properties and reduced internal friction to assist with longer product life
  • Full perimeter, multi-lip, piston rod seal is permanently lubricated and helps keep dirt and contaminates from reaching the interior of the rod
  • Gas charged for reduced fluid aeration, which can result in better response, less foaming, and more consistent control than non-gas charged shocks
  • Infinitely variable damping for on-demand control on all road conditions
  • O-ring hydraulic piston seal resulting in minimized piston blow-by and consistent control
  • Valve design performance that is independent of ride height reduces the potentially negative effects of vehicle loads or weak spring conditions


Comparison Chart 1PL05_PL09_CC_MaintShockStrut.jpg
Comparison Chart 2PL09_CC_ChromedRodVsUncoatedRod.jpg
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?
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:
Keyword SearchACDelco; Automotive; Auto Parts; Professional; Suspension; Premium Gas Charged; Shock; Shocks and Struts; Shock Absorber; Shock Absorber Kit; Shocks, Struts, and Suspension; ABSORBER,FRT SHK; ABSORBER,RR LVLG SHK; ABSORBER,RR LVLG SHK; ABSORBER,RR SHK; ABSORBER,RR SHK; ABSORBER,RR SHK (W/ SHLD); ABSORBER,RR SHK(W/UPR MT); ABSORBER KIT,FRT SHK; ABSORBER KIT,RR LVLG SHK; ABSORBER KIT,RR SHK
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, struts, and other suspension components, ACDelco offers a full line of Professional premium aftermarket suspension products. In addition to shocks and struts, we offer a variety of parts to make part replacement simple and precise. ACDelco Professional Suspension parts fit your GM vehicle, as well as a wide range of other vehicles on the road today.
Mkt_BrandQual_NamePremium Gas Charged
Mkt_State_Warranty_CA24 Months/40,000 KM (Parts Only). Please see for more details.
Mkt_State_Warranty_USLimited Lifetime Warranty (Parts Only). Please see for more details.
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:

Exc. Police and Taxi Models



  • 1968-1971 Lincoln Mark III - Position: Front
  • 1980-1983 Lincoln Mark VI - Position: Front
  • 1993-1996 Cadillac Fleetwood - Position: Front
  • 1965-1968 Mercury Commuter - Position: Front
  • 1987-1991 Ford LTD Crown Victoria - Position: Front
  • 1976-1986 Pontiac Parisienne - Position: Front
  • 1974-1979 Mercury Cougar - Position: Front
  • 1964-1966 Ford Galaxie 500 - Position: Front
  • 1977-1979 Ford LTD II - Position: Front
  • 1968-1977 Ford Custom 500 - Position: Front
  • 1965-1968 Mercury Montclair - Position: Front
  • 1971-1985 Oldsmobile Delta 88 - Position: Front
  • 1970-1980 Lincoln Continental - Position: Front
  • 1987-1989 Pontiac Safari - Position: Front
  • 1969-1972 Chevrolet Brookwood - Position: Front
  • 1977-1986 Cadillac Fleetwood - Position: Front
  • 1965-1982 Ford LTD - Position: Front
  • 1970-1981 Chevrolet Camaro - Position: Front
  • 1975-1976 Ford Elite - Position: Front
  • 1975-2002 Mercury Grand Marquis - Position: Front
  • 1970-1981 Pontiac Firebird - Position: Front
  • 1965-1974 Mercury Colony Park - Position: Front
  • 1994-1996 Chevrolet Impala - Position: Front
  • 1971-1984 Oldsmobile 98 - Position: Front
  • 1971-1973 Buick Centurion - Position: Front
  • 1971-1983 Buick Estate Wagon - Position: Front
  • 1965-1974 Ford Ranch Wagon - Position: Front
  • 1971-1972 Chevrolet Biscayne - Position: Front
  • 1965-1974 Ford Country Squire - Position: Front
  • 1969-1972 Chevrolet Townsman - Position: Front
  • 1971-1992 Oldsmobile Custom Cruiser - Position: Front
  • 2001-2002 Ford Grand Marquis - Position: Front
  • 1967-1979 Ford Thunderbird - Position: Front
  • 1981-2002 Lincoln Town Car - Position: Front
  • 1965-1975 Chevrolet Bel Air - Position: Front
  • 1991-1996 Buick Commercial Chassis - Position: Front
  • 1972-1976 Lincoln Mark IV - Position: Front
  • 1971-1981 Pontiac Bonneville - Position: Front
  • 1969-1972 Chevrolet Kingswood - Position: Front
  • 1971-1978 Buick Riviera - Position: Front
  • 1972-1976 Ford Torino - Position: Front
  • 1981-1981 Chevrolet Bel Air - Position: Front
  • 1965-1974 Ford Country Sedan - Position: Front
  • 1967-1982 Mercury Marquis - Position: Front
  • 1987-1992 Cadillac Brougham - Position: Front
  • 1971-1984 Buick Electra - Position: Front
  • 1977-1979 Lincoln Mark V - Position: Front
  • 1972-1976 Mercury Montego - Position: Front
  • 1965-1972 Ford Custom - Position: Front
  • 1966-1996 Chevrolet Caprice - Position: Front
  • 1965-1974 Mercury Monterey - Position: Front
  • 1965-1985 Chevrolet Impala - Position: Front
  • 1971-1981 Pontiac Catalina - Position: Front
  • 1965-1967 Mercury Marauder - Position: Front
  • 1991-1996 Buick Roadmaster - Position: Front
  • 1965-1967 Ford Galaxie - Position: Front
  • 1969-1970 Mercury Marauder - Position: Front
  • 1976-1981 Pontiac Laurentian - Position: Front
  • 1967-1967 Mercury Brougham - Position: Front
  • 1966-1967 Mercury Voyager - Position: Front
  • 1971-1978 Pontiac Grand Safari - Position: Front
  • 1977-1984 Cadillac Commercial Chassis - Position: Front
  • 1965-1968 Mercury Park Lane - Position: Front
  • 1977-1984 Cadillac DeVille - Position: Front
  • 1987-1991 Mercury Colony Park - Position: Front
  • 1968-1974 Ford Galaxie 500 - Position: Front
  • 1992-2002 Ford Crown Victoria - Position: Front
  • 1965-1967 Mercury Villager - Position: Front
  • 1987-1991 Ford Country Squire - Position: Front
  • 1992-1996 Cadillac Commercial Chassis - Position: Front
  • 1971-1985 Buick LeSabre - Position: Front
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