ASE P2 Automobile Parts Specialist study materials
ASE P2 Automobile Parts Specialist study resources

ASE P2 Automobile Parts Specialist key terms

ASE P2 Automobile Parts Specialist · Get comfortable with the vocabulary.

Core charge

A refundable deposit added to the price of a rebuilt part, returned to the customer when the old unit is handed back for remanufacturing. It encourages returns of rebuildable components.

Related: Remanufactured part, Special order
Remanufactured part

A used component that has been fully disassembled, cleaned, inspected, and rebuilt to original specifications with worn parts replaced. It usually carries a warranty and costs less than new.

Related: Core charge, New old stock
New old stock (NOS)

Genuine parts that were manufactured years ago but never installed or sold, still in original packaging. They fit like new but may have shelf wear or discontinued availability.

Related: Remanufactured part, VIN
VIN

A 17-character vehicle identification number stamped on the vehicle that encodes make, model, engine, and model year. Counter staff use it to confirm the correct part before selling.

Related: Application catalog, Interchange
Application catalog

A lookup tool, print or electronic, that lists which parts fit which vehicles by year, make, model, and engine. Accurate use prevents wrong-part returns.

Related: VIN, Interchange
Interchange

A cross-reference showing that a part from one manufacturer or part number can substitute for another. It helps when an original number is unavailable or superseded.

Related: Application catalog, Supersession
Supersession

A manufacturer's replacement of an old part number with a newer one that fits the same application. The old number is discontinued but the new number is sold in its place.

Related: Interchange, Application catalog
OEM part

A component made by or for the original vehicle manufacturer and sold under its brand. It matches factory fit and finish but typically costs more than aftermarket equivalents.

Related: Aftermarket part, Remanufactured part
Aftermarket part

A component produced by a company other than the vehicle manufacturer, offered as a replacement or upgrade. Quality and price vary widely by brand tier.

Related: OEM part, Private label
Private label

A product manufactured by one company but branded and sold under a retailer's or distributor's own name. It often offers better margin and exclusive pricing.

Related: Aftermarket part, Jobber
Jobber

A wholesale distributor that sells parts to repair shops and retailers rather than directly to the public. Jobbers often deliver multiple times daily and extend credit terms.

Related: WD (warehouse distributor), Account pricing
WD (warehouse distributor)

A large wholesaler that stocks deep inventory and supplies jobbers and large accounts. WDs typically carry broad lines and offer volume discounts and overnight replenishment.

Related: Jobber, Fill rate
Fill rate

The percentage of requested part numbers a location can supply immediately from stock. A high fill rate keeps shops productive and reduces lost sales.

Related: Safety stock, Stockout
Stockout

A situation where an item a customer wants is not on hand, forcing a lost sale or a special order. Repeated stockouts damage shop loyalty.

Related: Fill rate, Safety stock
Safety stock

Extra inventory held above expected demand to cover spikes or supplier delays. It protects service levels on high-turn or critical parts.

Related: Reorder point, Fill rate
Reorder point

The stock level that triggers a new purchase order, calculated from lead time demand plus safety stock. Hitting it without ordering risks a stockout.

Related: Safety stock, Lead time
Lead time

The elapsed time between placing an order and receiving the goods. Longer lead times require larger reorder points and safety stock.

Related: Reorder point, Safety stock
Inventory turnover

How many times stock is sold and replaced over a period, usually annual cost of goods sold divided by average inventory value. Higher turnover generally means healthier cash flow.

Related: Obsolescence, ABC analysis
Obsolescence

Inventory that no longer sells because demand disappeared, applications changed, or the part was superseded. It ties up cash and should be identified and liquidated.

Related: Inventory turnover, ABC analysis
ABC analysis

Ranking inventory by sales value or volume into A, B, and C groups so attention and stocking dollars go to the highest-impact items. A items get tight control and frequent review.

Related: Inventory turnover, Obsolescence
Perpetual inventory

A system that continuously updates on-hand quantities as items are received, sold, or returned. It supports accurate availability checks and cycle counting.

Related: Cycle count, Physical inventory
Cycle count

Counting a small, rotating subset of inventory on a scheduled basis instead of counting everything at once. It catches errors without shutting down operations.

Related: Perpetual inventory, Physical inventory
Physical inventory

A complete wall-to-wall count of all stock, usually done annually or at fiscal year end. Results are reconciled against book values to correct shrinkage and errors.

Related: Cycle count, Shrinkage
Shrinkage

The gap between recorded inventory and actual counted inventory caused by theft, damage, mispicks, or paperwork errors. It directly reduces gross profit.

Related: Physical inventory, Cycle count
Special order

A part ordered for a specific customer or vehicle that is not normally stocked. It usually requires a deposit and a clear no-return policy.

Related: Core charge, Restocking fee
Restocking fee

A percentage charge deducted from a refund when a customer returns a non-defective part. It offsets the cost of processing and reshelving.

Related: Special order, Return authorization
Return authorization

An approval number or document required before a customer or shop can send back merchandise. It lets the seller verify the sale and control credits.

Related: Restocking fee, Warranty claim
Warranty claim

A request to replace or credit a failed part covered by a manufacturer's or seller's guarantee. Documentation of installation date and failure cause is usually required.

Related: Return authorization, Remanufactured part
Gross profit margin

Sales revenue minus the cost of the goods sold, expressed as a percentage of sales. It measures how much each sale contributes to overhead and profit.

Related: Matrix pricing, Account pricing
Matrix pricing

Setting prices by grouping parts into categories and applying different markup percentages to each. Low-cost, high-volume items often get lower markup than slow movers.

Related: Gross profit margin, Account pricing
Account pricing

Negotiated price levels assigned to specific shop customers, often tiered by volume or loyalty. It replaces list price at the counter for those accounts.

Related: Matrix pricing, Jobber
Upselling

Suggesting a higher-value or more complete solution than the customer originally asked for, such as a premium pad or a related kit. It works best when tied to a real need.

Related: Cross-selling, Related items
Cross-selling

Recommending complementary products that go with the item being purchased, such as brake fluid with pads. It raises average ticket size and helps the customer finish the job.

Related: Upselling, Related items
Related items

Parts and supplies commonly needed alongside a repair, such as gaskets, seals, or fasteners. Listing them helps prevent comeback jobs and extra trips.

Related: Cross-selling, Upselling
Planogram

A diagram showing where products should be placed on shelves and displays to maximize sales and ease of finding. It keeps layouts consistent across stores.

Related: End cap, Point-of-sale display
End cap

The shelving at the end of an aisle used to feature promoted or impulse items. High-traffic placement there can lift sales of seasonal products.

Related: Planogram, Point-of-sale display
Point-of-sale display

A small counter or floor fixture that holds merchandise near the register to prompt impulse buys. It works for low-cost add-ons like bulbs, fuses, or cleaners.

Related: End cap, Planogram
MSDS/SDS

A safety data sheet that documents hazards, handling, storage, and first aid for a chemical product such as solvent or brake fluid. Employers must keep them accessible.

Related: Hazmat shipping
Hazmat shipping

Rules for packing, labeling, and documenting dangerous goods like batteries, aerosols, and flammable liquids. Untrained shippers can face fines and rejected shipments.

Related: MSDS/SDS
Comeback

A vehicle that returns to the shop because a repair failed or was incomplete. Parts staff reduce comebacks by supplying correct, quality parts and related hardware.

Related: Related items, Warranty claim