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Data
Expectations
Service Business
Social Media
Strategies
Targeting

Dealership Parts Matrix Pricing Strategies

Dealership Parts Obsolescence 12-Month Audit

Dealership Service Response Times: Why Every Minute Costs Revenue and Retention

Effective Labor Rate vs. Door Rate

Google Reviews in Fixed Ops: Turning 3-Star Stores Into 4.6+ Machines

Service Department Dispatching Models

Service Lane Mistakes That Destroy Trust

The Online Service Scheduling Impact

Why Some Service Departments Resist Video MPI

Winning Back Lost Service Customers

Dealership Parts Obsolescence 12-Month Audit

A dealership’s parts shelves can appear full while failing to support the service drive’s needs. The problem is not simply clutter. Dealership parts obsolescence results in cash that cannot be reinvested, reduced storage capacity, slower inventory turns, and a greater risk of ordering parts that will not sell.

NADA defines parts obsolescence as inventory aged more than 12 months with no demand. That makes the 12-month no-sale report an important management tool—but it should not be treated as an annual cleanup list. It should be the starting point for discovering how obsolete inventory entered the department and preventing the next wave of aging stock.

Dealership Parts Obsolescence

What “12-Month Obsolete” Really Means

A part with no demand for 12 months deserves immediate review, but age alone does not determine what should happen next.

A thorough automotive parts inventory audit should consider:

  • ~ Date of most recent sales, last stock, and last activity
  • ~ Current quantity on hand
  • ~ Monthly sales history and quarterly lost sales
  • ~ Reorder level, maximum stocking level, quantity on order, and quantity on back order
  • ~ Stock status, including whether the part is normally stocked, a special-order part, changed, or recently returned
  • ~ Return status
  • ~ Superseding and superseded part numbers
  • ~ Model-year fitment range
  • ~ Bin, shelf, and drawer location

The difference between months no-sale and months no-receipt is especially important. Months no-sale shows how long it has been since customer demand occurred. Months no-receipt shows how long it has been since another unit entered inventory.

Looking at both can reveal a damaging pattern: a part may not be selling, yet an automatic replenishment setting, a manual order, or an incorrect stocking level continues to bring additional units into the department.

Not every 12-month no-sale part should be liquidated automatically. Legitimate exceptions may include required OEM stock, newly introduced models, safety or campaign components, low-frequency but operationally critical parts, and inventory reserved for an active repair.

The audit helps determine which parts still support current or future demand. 

Obsolete Inventory Freezes Working Capital

Consider a dealership carrying $600,000 in parts inventory. If 10% of that stock has had no demand for more than 12 months, approximately $60,000 is tied up in inventory that may no longer support current operations.

That money cannot easily be used to stock faster-moving parts, upgrade equipment, train employees, expand wholesale operations, improve customer transportation, or market the service department.

Obsolete inventory also weakens dealership inventory turns. It increases the average inventory investment without a proportional increase in sales, leaving the dealership’s cash sitting on the shelf longer.

NADA advises dealerships to evaluate inventory quality rather than relying exclusively on a broad months-supply calculation. Its dealership parts-management guidance emphasizes prioritizing fast-moving inventory while tracking obsolete and phase-out stock through DMS reporting.

The Report Shows What Happened. The Audit Reveals Why.

The 12-month report tells a dealership what has already gone wrong. A disciplined audit reveals why it happened and what must change. The goal is not to maximize the number of parts on the shelf, but to have the right parts available to support current repair demand while protecting the dealership’s cash.

Is your service marketing generating demand that aligns with the customers and vehicles in your market? TVI MarketPro3 uses DMS data to identify and engage inactive, lost, and new VIN customers, creating measurable opportunities throughout fixed operations.

Let TVI know how we can level up your service department marketing game.

Let's get moving. Get your customized marketing plan today.

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