Automotive Aftermarket · 18 attributes

Shock absorber and strut product attributes

Shock and strut attributes to capture: extended and collapsed length, upper and lower mount types, damper design, assembly contents and sold-as quantity.

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Shocks and struts span several distinct products: a bare shock absorber, a bare strut, a complete strut assembly with spring and mount, and adjustable coilovers. Supplier files often label all of them loosely, and the difference decides whether a job takes one hour or needs a spring compressor. Part type and assembly contents are therefore core attributes, not descriptive extras.

Dimensional data does the rest of the work. Extended and collapsed lengths, upper and lower mount styles and rod size let a buyer match a part on a lifted, lowered or unlisted vehicle, where fitment tables do not help. Mount types are frequently written as supplier-specific codes, so they need a controlled list that maps those codes to plain descriptions.

Some attributes carry more risk. Vehicles with electronically controlled suspension need a matching damper and connector, or a documented conversion kit. Gas-charged units can be subject to transport rules, and many are sold individually while others ship in pairs. Each of these should be a structured field, taken from manufacturer documentation, so pricing and shipping do not rely on guesswork.

The shocks & struts attribute template

18 candidate fields in 5 groups, ordered the way a record gets built: identify the item, capture its specifications, then record fit and the evidence behind any claim. 9 are marked Core: without them the item cannot be identified or filtered. Example values show the expected format only; they do not describe a real SKU.

Identity

Which exact item, variant and pack this record describes.

Check before use: Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking.

Attribute Type Priority Example format
Manufacturer Part Number manufacturer_part_number Identifier Core SS-171427
Sold As (Package Quantity) sold_as_package_quantity Controlled list Core Each
GTIN / UPC gtin_upc Identifier Channel / evidence 00812345171426

Technical specifications

Measured or rated values that must travel with their unit and test conditions.

Check before use: Store the number and unit separately. Convert only when the source unit and test conditions are known.

Attribute Type Priority Example format
Extended Length extended_length Number · in Core 21.81 in
Collapsed Length collapsed_length Number · in Core 13.35 in
Gas Charge Pressure gas_charge_pressure Number · psi Buyer decision 260 psi
Piston Rod Diameter piston_rod_diameter Number · mm Buyer decision 18 mm

Selection attributes

The type, material and option choices buyers filter and compare on.

Check before use: Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to.

Attribute Type Priority Example format
Part Type part_type Controlled list Core Strut assembly
Damper Design damper_design Controlled list Buyer decision Monotube
Damping Adjustment damping_adjustment Controlled list Buyer decision Single-adjustable, 10-position rebound
Assembly Contents assembly_contents Text Buyer decision Strut, coil spring, upper mount, boot, bump stop

Fit & compatibility

What the item mounts to, mates with, replaces or works alongside.

Check before use: Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so.

Attribute Type Priority Example format
Vehicle Fitment (ACES) vehicle_fitment_aces_application Text Core 2012-2017 midsize sedan, 2.5L, FWD
Position position Controlled list Core Front left
Upper Mount Type upper_mount_type Controlled list Core Stud
Lower Mount Type lower_mount_type Controlled list Core Eye with bushing and sleeve
Electronic Damping Interface electronic_damping_interface Controlled list Buyer decision Electronically adjustable, 2-pin connector

Evidence & compliance

Listings, standards, classifications and origin claims that need a document behind them.

Check before use: Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU.

Attribute Type Priority Example format
Country of Origin country_of_origin Text Channel / evidence Assembled in USA from domestic and imported components
Transport / Hazmat Classification hazmat_classification Controlled list Channel / evidence UN3164, Class 2.2, excepted (per manufacturer SDS)

Normalize supplier values

The same value arrives in many spellings. Map each raw string to one governed value, and keep the raw text beside it so a reviewer can see what the supplier actually wrote.

Mount Type

EyeEyeletEBLoopBushing EyeEye Ring & Bushing

Normalized to Eye with bushing

Damper Design

Mono-tubeMonoTubeMono TubeSingle TubeMonotube gas1-tube

Normalized to Monotube

Extended Length

21.81 in21-13/16"21.8554 mm55.4 cm21.81" ext.

Normalized to 21.81 in (554 mm)

Often missing from supplier files

These fields are commonly absent from price lists and basic feeds, even though the information usually exists in a datasheet, label or installation manual. Treat an empty value as a request for evidence, not as permission to fill it from a similar model.

  • Assembly contents
  • Electronic damping interface
  • Upper and lower mount types
  • Ride height / lift range
  • Transport / hazmat classification

Questions the record must answer

Buyers and counter-sales reps choosing shocks & struts ask questions like these. Each one needs a specific field, sourced for the exact variant.

  • Is this a bare strut, or the complete assembly with the spring and top mount?
  • Will it work on the trim with electronic adaptive suspension?
  • Is this priced for one shock or for a pair?
  • What are the extended and compressed lengths, so I can check it against my lift?

From supplier file to record

  1. Resolve identity first. Link the supplier SKU, manufacturer part number and packaging identifiers without merging distinct variants or pack sizes.
  2. Extract with the source attached. Pull values from rows, tables and datasheets, keeping the raw text, unit and page or row reference.
  3. Map to your classification. Assign the ETIM, ECLASS, UNSPSC or internal class your company licenses, and keep the supplier's original terms.
  4. Review, sync and watch. Hold conflicts and safety-related values for a category expert, write approved values to ERP or PIM, and recheck when the supplier sends a new file.

For the full method, see how to build a category attribute template and the category catalog gap audit.

FAQ

Why isn't fitment data enough for shocks and struts?

Fitment lists the vehicles a damper was designed for, at stock ride height. Lifted or lowered vehicles, specialty upfits and vehicles missing from the application file all need physical data instead: extended and collapsed length, mount types at each end and rod size. Those same fields let you check that a listed application is plausible and compare brands. Store lengths as numbers with one unit, map mount codes to a controlled list, and record any lift or ride-height range the manufacturer states as its own field.

Are gas-charged shocks regulated for shipping?

Gas-charged dampers contain pressurized gas, and depending on design and the rules for each transport mode they may be classified as dangerous goods or qualify for an exception. Do not assume either way. Store the UN number, class and any exception status as structured fields taken from the manufacturer's current safety data sheet or shipping documentation, and have them checked against the regulations for road, air and sea that apply to your lanes. The catalog should hold and cite that classification so warehouse and carrier systems use the same value.

How do a bare strut, a strut assembly and a coilover differ in the record?

A bare strut is the damper only and reuses the vehicle's spring, mount and hardware. A strut assembly, often called a loaded or quick strut, includes the spring, upper mount, bearing and boot, ready to bolt in. A coilover pairs a damper with a threaded spring perch, usually for adjustable ride height. Model this with a controlled part type plus a structured list of assembly contents, so buyers can filter on what is in the box and pricing reflects the labor each option saves.

Should the catalog tell buyers to replace shocks in pairs?

Replacing dampers in axle pairs is common guidance because it keeps handling balanced, but the record should not turn advice into a data rule. Store the sold-as quantity as a controlled field, such as each or pair, so that pricing, ordering and inventory are correct, and link left and right parts where they differ. Replacement guidance belongs in content that cites the manufacturer's recommendation. That way a buyer ordering two of an each-priced part and a buyer ordering one pair both get the right quantity.

Claro

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Claro runs this automatically: resolve identity, fill missing attributes, validate updates, and write clean records back into your PIM/ERP. Upload a sample supplier file for a free catalog audit.

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