Every collision repair estimate tells a story that most vehicle owners never bother to read. Buried in rows of part numbers and labor codes is a decision that will affect how well your car fits together, how long its paint holds up in the North Texas heat, whether your driver-assistance technology works correctly the next time you need it, and what a buyer will think when they look the car over before making an offer. That decision is the choice between OEM, aftermarket, and recycled replacement parts.
Insurance adjusters make this choice automatically, using estimating software that defaults to the least expensive option meeting a carrier's internal quality threshold. You have the right to understand and influence that choice. In Hurst and across Tarrant County, drivers who know the difference between a CAPA-certified aftermarket part and an uncertified one - and who understand what Texas law requires insurers to disclose - consistently end up with better repairs than those who simply sign the estimate and trust the process.
The Three Categories of Collision Repair Parts
Before you can advocate for yourself at a body shop or with an adjuster, you need to understand the landscape. Every replacement part used in a collision repair falls into one of three categories, and the quality differences between and within those categories are large enough to matter for years after the car leaves the shop.
OEM Parts - Original Equipment Manufacturer
OEM parts come from the same source as the components that were on your vehicle when it left the factory. They may be manufactured directly by the automaker or by a tier-one supplier working under a direct contract with that automaker. Either way, the part carries the vehicle manufacturer's part number, is built to the same material specifications, and fits without modification or shimming.
For vehicles still under a manufacturer's warranty, this matters in a concrete way. Many automakers have published position statements indicating that the use of non-OEM structural or safety-related parts in a collision repair may affect warranty coverage on related systems. If your vehicle is within its original warranty period or if it is leased, OEM parts are rarely a negotiable item - the cost of a warranty dispute or an end-of-lease charge will almost always exceed the premium paid for OEM components.
OEM parts typically cost more than the alternatives. The price premium over aftermarket ranges widely by make, model, and part type. For a common panel like a front fender on a popular domestic truck, the OEM price may be 30 to 50 percent higher than a quality aftermarket alternative. For specialty panels on European luxury vehicles or recent electric vehicles, the gap can be significantly wider. These premiums are why insurers default to alternatives whenever their policy language permits them to do so.
Aftermarket Parts - Certified and Uncertified
Aftermarket collision parts are manufactured by companies that were not involved in building your vehicle. This is a broad category with an enormous quality range, and treating all aftermarket parts as equivalent is one of the most common and costly mistakes drivers make when reviewing an estimate.
At the top of the aftermarket quality ladder are parts certified by CAPA (Certified Automotive Parts Association) or NSF International. Both organizations run independent testing programs that compare aftermarket parts to the OEM service part for form, fit, material thickness, corrosion resistance, UV stability, and coating adhesion. NSF International requires vehicle test fits for exterior parts to confirm they install correctly the first time, and conducts tensile and yield strength testing on structural components. A CAPA or NSF certification mark is a meaningful quality signal based on third-party verification, not a marketing label applied by the manufacturer.
Below certified aftermarket parts is a much larger universe of uncertified alternatives. A CAPA industry analysis found that nearly 90 percent of non-CAPA certified aftermarket parts examined showed significant differences and quality deficiencies when compared to manufacturer brand parts. That figure deserves to sink in: if your estimate specifies aftermarket parts with no certification notation, the likelihood that those parts are materially comparable to OEM is quite low. The deficiencies typically show up as panel gaps that require adjustment, paint adhesion problems at edges and joints, and accelerated surface rust beginning at the panel perimeter.
When you see "AM" on an estimate without a CAPA or NSF qualifier, the appropriate response is to ask for the specific brand name and certification status before authorizing the repair. A reputable shop will have this information immediately and will be able to explain why that part was specified.
Recycled and Used OEM Parts
Recycled parts are genuine OEM components salvaged from total-loss vehicles at licensed dismantlers. The largest national supplier is LKQ Corporation, which operates salvage facilities across the country including the Dallas-Fort Worth area. A door panel pulled from a three-year-old vehicle with rear-end collision damage can be a legitimate substitute for a new OEM part, as long as the panel itself was undamaged and has been properly inspected before going on your car.
Recycled parts become problematic in specific situations: when used on newer vehicles where factory corrosion treatments cannot be replicated after the fact; when the part shows evidence of prior repair or refinishing; when the part is a structural or load-bearing component; or when the age and mileage of the donor vehicle is unknown. Reputable shops accept and reject recycled parts selectively based on hands-on inspection, not wholesale. If your estimate specifies recycled parts for a structural component or for any component adjacent to a sensor, camera, or radar module, that warrants a direct conversation about the specific source and condition of the part.
What Texas Law Requires - and What It Does Not
Texas requires that insurers disclose the use of non-OEM parts on repair estimates. When an adjuster's estimate specifies aftermarket or recycled components, that must be identified in writing before you authorize any work. This disclosure requirement exists because the difference between OEM and non-OEM is a material fact affecting safety, durability, and resale value - not a technicality buried in the fine print.
What Texas law does not currently require is that insurers pay for OEM parts. The standard auto insurance policy in Texas uses language permitting the use of parts of "like kind and quality" as a substitute for OEM, which gives adjusters room to approve aftermarket or recycled components on most repairs. Whether a specific insurer must cover OEM in your specific situation depends on your policy language, the age of your vehicle, and the nature of the components involved.
A bill proposed in the 88th Texas Legislature (SB 1083) would have required OEM parts and manufacturer repair procedures for vehicles owned by the policyholder for three years or less. That bill did not become law as of this writing. Texas drivers should verify the current legislative and regulatory status of collision repair parts requirements with the Texas Department of Insurance at tdi.texas.gov or with a licensed Texas property damage attorney, since this is an area of active policy development.
What the existing framework does give you is leverage. When you receive an estimate specifying non-OEM parts, you can reject individual parts, request OEM alternatives, and ask the insurer to justify in writing why a non-OEM substitute is appropriate for your vehicle and the specific damage involved. Documenting your position in writing creates a paper trail that strengthens any subsequent dispute. If you believe an insurer has acted without proper disclosure or in bad faith, you have the option to file a complaint with the Texas Department of Insurance.
Why Parts Quality Matters More Than It Used To
A decade ago, the parts debate in collision repair was largely cosmetic - panel gaps, paint adhesion, rust resistance over time. Those concerns remain valid, but the stakes have risen significantly because modern vehicles are built with layers of active safety technology that is physically embedded in the body panels themselves, not just mounted under the hood.
A front bumper cover on a current-model vehicle likely houses one or more radar sensors that power adaptive cruise control, forward collision warning, and automatic emergency braking. A rear bumper cover may contain a primary backup camera and ultrasonic parking sensors. The windshield area supports mounting systems for a forward-facing camera that controls lane-keeping assist and traffic sign recognition. Side mirror housings often contain the hardware for blind-spot monitoring and rear cross-traffic alert systems.
When any of these components is replaced with an aftermarket part that differs from OEM in foam density, surface geometry, material composition, or dimensional tolerance, the sensor mounted behind or within it may not perform correctly even after recalibration. Radar signal propagation is sensitive to the materials it passes through. A camera mounting point that shifts by even a few millimeters can introduce a systematic error that a standard calibration routine may not fully correct. The vehicle may pass a static calibration check and still exhibit degraded performance under real-world conditions.
For this reason, multiple automakers including Toyota, Honda, General Motors, Ford, and Stellantis brands have published position statements recommending or requiring OEM parts for any repair involving ADAS-related surfaces or sensor mounting zones. If your vehicle has any form of active safety technology - and virtually every vehicle sold in the last several years does - the parts used in the repair area are a safety question, not just a quality preference.
Your shop should identify all ADAS-adjacent components during the estimate process and flag them for OEM specification. If your estimate covers anything near a bumper cover, windshield mounting zone, front grille area, or side mirror assembly, and ADAS-related parts are not specifically addressed in the documentation, ask why before you sign.
How Insurers Decide What Parts to Specify
Insurance estimating in the United States runs primarily through three software platforms: CCC ONE, Mitchell, and Audatex. Adjusters use these tools to generate repair estimates, and each platform automatically pulls parts pricing from multiple sources and applies carrier-specific preferences to select the default part type. For vehicles over a certain age - typically three to five years depending on the carrier and the coverage - the platform may automatically substitute aftermarket or recycled parts for OEM without the adjuster making an active judgment call on your specific vehicle.
The estimate produced by this process is a starting point for negotiation, not a final ruling. Every item on a collision repair estimate is subject to supplementation - a formal process by which the shop provides documentation, photographs, and technical justification supporting the need for a specific part or procedure. Experienced shops write supplements as a routine part of their workflow, not as an exception. A supplement citing an automaker's OEM parts position statement for a vehicle with active safety systems frequently results in the carrier approving OEM on components it initially specified as aftermarket, without any additional cost to the vehicle owner.
When evaluating a body shop, ask specifically: what is your process when the initial estimate specifies aftermarket parts and you believe OEM is required? The answer will tell you a great deal about whether the shop is working on your behalf throughout the repair or simply processing the insurer's estimate as written.
Leased and Financed Vehicles - Additional Considerations
If you are leasing your vehicle, the parts question carries a financial dimension that extends well beyond the repair itself. Most lease agreements require the vehicle to be returned in a condition consistent with factory standards and without evidence of non-standard repairs. Returning a leased vehicle with aftermarket body panels - particularly uncertified ones that show panel gap irregularities, paint inconsistency, or early surface rust - can result in end-of-lease damage assessments that significantly exceed any cost saved by using aftermarket parts during the repair.
Review your lease agreement before authorizing any collision repair. If OEM parts are required under your lease terms, provide that documentation in writing to your adjuster at the start of the claims process. Most lease finance companies will confirm their parts requirements in writing if you call their customer service line - get that confirmation and submit it to the insurer as part of the supplement documentation for your claim.
For vehicles under an active manufacturer warranty, the same principle applies from a different direction. Using non-OEM structural or safety-related parts during the warranty period may give the manufacturer grounds to deny warranty claims on related systems if those systems fail later. Check the warranty language in your owner's manual or on the manufacturer's website before authorizing any estimate. This is vehicle-specific information worth confirming before you sign off on a repair, not something to investigate after a warranty claim is denied.
Paint, Corrosion, and the North Texas Climate
The Dallas-Fort Worth area imposes specific durability demands on vehicle finishes that drivers in milder climates may not think about. Summer UV index levels are among the highest in the continental United States for extended periods, accelerating paint oxidation and clear-coat breakdown. Temperature swings between seasons stress adhesion at panel edges and body seams. And as any Hurst driver knows, the region sees periodic severe hail events that require fresh paint repairs to hold up to impacts the original factory finish was engineered to absorb.
These environmental factors make the quality of a replacement panel's primer and corrosion protection coating more consequential than they might be in a cooler or less sunny region. OEM panels arrive from the factory with corrosion inhibitors and primers engineered for that specific panel's geometry and material composition. Aftermarket panels arrive with generic primers that may behave differently under the same finish coats, particularly at cut edges where corrosion protection is most critical. Skilled painters account for these differences, but they introduce variables into a process where consistency is the goal.
Long-term, OEM panels tend to hold up better under extreme UV exposure and temperature cycling because the surface preparation is more consistent and precisely matched to the substrate. This is a practical argument for OEM that has nothing to do with ADAS technology or warranty language - it is simply about how long the repair holds up in the specific climate where the vehicle spends most of its life.
What to Ask Before You Sign the Estimate
The estimate review stage is your best opportunity to influence the outcome of your repair. Most drivers sign the paperwork and hand over the keys without asking a single question. The drivers who ask the right questions at this stage almost always end up with better outcomes. Before authorizing any collision repair, go through these questions with your shop:
- Which parts on this estimate are OEM, which are aftermarket, and which are recycled? For any aftermarket part, what is the specific brand name and is it CAPA or NSF certified?
- Does my vehicle have active safety systems? Are any of the parts being replaced part of, or adjacent to, a sensor mounting zone, camera bracket, or radar housing?
- If the insurance estimate specifies aftermarket parts for a safety-related component, will you write a supplement to the insurer requesting OEM and providing technical justification?
- What is your warranty on parts and labor, and does the coverage distinguish between OEM and aftermarket parts?
- Is my vehicle still under the manufacturer warranty, and have you confirmed whether OEM parts are required to preserve that coverage?
- If I am leasing this vehicle, have you reviewed my lease agreement's requirements for replacement parts?
None of these are hostile or unusual questions. An experienced collision repair professional will welcome them as a sign that you are an informed customer who takes the quality of the repair seriously. A shop that deflects these questions or suggests they are unnecessary is signaling something important about the way it does business.
Parts Availability on Newer and Specialty Vehicles
One practical factor that sometimes resolves the OEM versus aftermarket debate quickly is simple availability. For newly released model years, vehicles with low production volumes, or vehicles with unusual trim configurations, aftermarket suppliers may not yet have tooled up to produce replacement parts at all. In these situations, OEM is the only option available regardless of what the insurance estimate initially specifies, and experienced shops identify this at the estimate stage and document it for the carrier before ordering anything.
The same dynamic applies to certain specialty structural components, proprietary mounting systems for advanced technology features, and panels for vehicles produced in limited configurations. As vehicle complexity increases with each model year, the range of parts for which certified aftermarket alternatives exist continues to narrow. A shop that knows its way around parts availability for the makes and models it services will catch these situations early and manage them professionally rather than discovering the problem mid-repair.
Understanding the Warranty on Your Collision Repair
A reputable body shop backs its work with a written warranty covering both parts and labor. The scope of that warranty matters most when the parts used are aftermarket or recycled. If an aftermarket hood develops a paint adhesion failure at 18 months, the shop may cover refinishing under its workmanship warranty - but if the root cause is a defect in the aftermarket panel's primer or edge coating, the question of who is ultimately responsible can become complicated and contested.
OEM parts carry a manufacturer's parts warranty that provides a cleaner chain of accountability. If an OEM panel fails due to a material defect, the automaker's warranty applies separately from the shop's workmanship coverage, giving you two layers of recourse instead of one. Ask for warranty terms in writing before authorizing any repair and before the vehicle goes into the shop. A lifetime warranty on workmanship is standard at established shops in the Hurst area. Parts warranty terms vary by part type and source, and you should understand exactly what is covered and for how long before authorizing work.
Frequently Asked Questions
Can I insist on OEM parts even if my insurance adjuster specifies aftermarket?
Yes, you can request OEM parts, and Texas law requires your insurer to disclose in writing when non-OEM alternatives are specified on your estimate. Whether the insurer is required to cover the full OEM cost depends on your specific policy language - many standard Texas policies use "like kind and quality" language that permits aftermarket alternatives. On newer vehicles, leased vehicles, or vehicles within an open manufacturer warranty period, you typically have stronger grounds to request full OEM coverage. Document your request in writing, ask for the insurer's response in writing, and have your shop write a formal supplement with technical justification if the insurer initially declines.
What is the difference between a CAPA-certified part and an uncertified aftermarket part?
CAPA (Certified Automotive Parts Association) runs an independent testing program that evaluates aftermarket collision parts against OEM service parts for fit, finish, material composition, tensile and yield strength, corrosion resistance, and UV stability. A CAPA certification means the part met those benchmarks at the time of testing, which represents a meaningful and independently verified quality floor. By contrast, an uncertified aftermarket part has no independent quality verification whatsoever. A CAPA industry analysis found that nearly 90 percent of non-CAPA certified aftermarket parts examined showed significant quality differences and deficiencies compared to OEM parts - a gap that can appear as panel misalignment, early corrosion, or paint adhesion failure within the first few years of the repair.
Are recycled OEM parts a safe choice for collision repair?
Recycled OEM parts from a reputable licensed dismantler can be appropriate for many repairs, particularly for exterior body panels on older vehicles where new OEM stock may be limited or discontinued. The deciding factors are the quality of the inspection and the location of the part on the vehicle. Any recycled panel showing evidence of prior repair, refinishing, rust, distortion, or excessive wear should be rejected before it is installed. Recycled parts should generally not be used for structural components, airbag-system parts, or any component adjacent to an ADAS sensor or camera mounting zone - ask your shop what specific criteria they apply when inspecting and accepting recycled parts.
Will non-OEM parts affect my vehicle's resale value?
Potentially, yes. A vehicle history report will not typically detail what parts were used in a collision repair, but an informed private buyer or a pre-purchase inspection by a knowledgeable technician can identify signs of non-OEM work through panel gaps, paint variance, inconsistent surface texture, or non-factory fastener hardware. In a competitive used-vehicle market like the DFW Metroplex, these signals can affect what a private buyer or a franchise dealer is willing to offer. OEM repairs are more straightforward to document and tend to raise fewer questions during an inspection, which keeps negotiating leverage on your side at the point of sale.
How do I know whether my car needs ADAS recalibration after a collision repair?
If any sensor, camera, radar module, or ultrasonic component was removed, replaced, or had its mounting surface altered during the repair, recalibration is almost certainly required. This includes forward-facing cameras near the windshield, radar sensors embedded in front and rear bumper covers, blind-spot sensors in mirror housings, and front or rear parking sensors. Your shop should identify all affected systems during the estimate process and list post-repair calibration as a separate line item on the estimate. If your vehicle has any active safety features and calibration does not appear on the estimate, ask specifically why it is not required for this particular repair.
What should I do if aftermarket parts were used in my repair without my knowledge?
Start by reviewing your original written repair estimate - Texas law requires parts disclosure, and using non-OEM parts without written notice is a reportable issue. Contact the shop in writing and document your concern with photographs and all paperwork from the repair. If the issue involves a safety-related component or a part that has already caused a measurable performance problem, consult a Texas property damage attorney before taking further action. Complaints about insurer disclosure failures or bad-faith claims handling can be filed with the Texas Department of Insurance at tdi.texas.gov - keep copies of every document throughout the process.
Get a Straight Answer on Parts Before Your Repair Begins
At Beshears Collision Repair in Hurst, TX, we walk every customer through their estimate before a single tool touches their vehicle. We identify each replacement part by type and certification, flag every component that sits within or adjacent to an active safety system, and advocate to the insurer when OEM is required for a repair that is both safe and durable. If you have received an estimate from another shop or directly from your insurance company and you want a second opinion on the parts being specified, reach out through our contact page. An informed decision at the estimate stage protects your vehicle, your warranty, and your peace of mind for years after the repair is complete.