Junkyard GuideFeb 28, 2026By U-Pull-It Staff

10 Parts You Didn't Know Were Interchangeable: The Sister Car Secret

Can't find your year and model in the yard? You might be looking at the wrong car. Automakers share parts across brands — here's the complete sister car guide with the 10 best interchangeable parts and a cheat sheet for the most common platforms.

10 Parts You Didn't Know Were Interchangeable: The Sister Car Secret
Photo by U-Pull-It
Flat-lay of matching automotive parts from different brands: alternators, side mirrors, relay boxes, and wheel hubs labeled with handwritten tags
Two alternators. Two mirrors. Two relay boxes. Two wheel hubs. All interchangeable across different makes — and all waiting in the yard right now.

Can't find your specific year and model in the yard? You might be looking for the wrong car.

Most people walk into a u-pull-it yard looking for an exact match — same year, same model. When they don't find it, they leave. That's a mistake. Automakers have been sharing platforms, parts, and tooling across brands for decades to control manufacturing costs. The result is that your Honda Civic shares literal bolt-on components with the Acura ILX. Your Toyota Camry can accept seats and mirrors from a Lexus ES. Your F-150 alternator bolts right into a Lincoln Mark LT.

Once you understand how "sister cars" work, the yard looks very different.

⚠️ The Compatibility Check — Do This Before You Pull

  • Visual Match: Hold the donor part next to your original. Casting numbers, mounting holes, and connector locations should all line up before you start unbolting.
  • Plug Check: For anything electrical — mirrors, sensors, switches — verify the connector shape and pin count are identical.
  • Use the Hollander Guide: Ask at our front desk. We have access to the Hollander Interchange system, which cross-references part numbers across makes and model years in 30 seconds.

The top 10 parts that cross over between cars

  1. Alternators and starters. Bosch, Denso, and Mitsubishi Electric supply alternators to multiple automakers at once, often with the same internal specs. GM truck alternators — Silverado, Sierra, Tahoe, Suburban, Yukon — share 105A and 145A units across the platform.
  2. Power door mirrors. Toyota and Lexus share exterior mirror assemblies extensively. A Lexus ES300 mirror often bolts onto a Camry of the same generation. Honda Civic and Acura ILX/EL share mirror bases and glass.
  3. Relays and fuses. Within the same manufacturer's lineup, relays are nearly universal. A Bosch mini relay (30/40A, 12V, 5-pin) appears in dozens of vehicles from VW, Audi, BMW, Volvo, and Mercedes across multiple decades.
  4. Wheels and rims. The 5x114.3 bolt pattern is shared by Honda, Acura, Nissan, Infiniti, Toyota, Hyundai, Kia, Mazda, and Mitsubishi. A set of 17" rims from a Nissan Altima will physically fit a Honda Accord of the same generation.
  5. Interior door handles. GM's GMT800 and GMT900 trucks (Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade) share interior door handle assemblies across the lineup.
  6. Window regulators and motors. A 2002–2006 Camry window regulator will interchange directly with the Solara and sometimes the Avalon of the same generation.
  7. Water pumps and thermostats. Engine-based parts follow the engine, not the badge. If a 2.5L inline-four from Nissan appears in the Altima, Sentra, and Frontier, the water pump is the same across all three.
  8. Fuel injectors. A 2003 Honda Accord 2.4L injector (Denso 16450-RAA-A01) crosses directly with the Element and CR-V using the same engine. Match by flow rate and connector type.
  9. Brake calipers and rotors. GM Delta platform (Cobalt, G5, HHR, Ion) uses the same front brakes throughout. Front calipers are platform-wide in most generations.
  10. HVAC blower motors. Toyota's HVAC supplier (Denso) builds blower units that appear across Camry, Avalon, Lexus ES, and Solara with the same connector and mounting bracket.

The "Sister Car" cheat sheet

Mechanic holding two identical side mirror assemblies from different car brands at a junkyard, comparing them side by side
Two mirrors, one fit. The platform is the same; only the badge is different.
Your Car Look for These Donors Too Notes
Honda Civic Acura EL, Acura ILX, Honda CR-X (older) Most body and interior parts, 2001–2015
Toyota Camry Lexus ES300/ES350, Toyota Avalon, Toyota Solara Platform-wide sharing from 1997–present. Seats, HVAC, window regulators.
Ford F-150 Lincoln Mark LT, Ford Expedition, Ford Navigator Engines, alternators, mirrors, interior pieces — very broad overlap
Chevy Silverado GMC Sierra, Chevy Suburban, Chevy Tahoe, GMC Yukon GMT800/900 platform — enormous parts pool
Nissan Altima Nissan Maxima, Nissan Sentra (2.5L), Infiniti G35/G37 (some) Engine-based parts — match by engine code (QR25DE, VQ35DE)
VW Golf/GTI Audi A3 (same gen), Skoda Octavia, SEAT Leon MQB platform sharing — virtually identical underhood architecture

Pro Tip: The Junkyard Luxury Upgrade. Leather seats from a Lexus ES300 or ES350 bolt directly into a Toyota Camry of the same generation. Same mounting points, same rails. You get a luxury interior for $40–$80 instead of $800+ for new aftermarket. This works because the Camry and ES literally share the same floor pan.

How to verify interchange before you pull

Mechanic using a rugged tablet at a salvage yard counter to look up part interchange compatibility in a database
The Hollander Interchange system at our front desk cross-references part numbers across every make and model year in seconds.
  1. Ask at the front desk. We look up Hollander interchange numbers in under a minute.
  2. Compare casting numbers. OEM parts cast the part number directly into the metal. Matching casting numbers = same unit regardless of badge.
  3. Use the OEM supplier logic. If both cars use a Denso part, look up the Denso part number for each. Matching Denso numbers = identical part.

What NOT to interchange (the parts where VIN matters)

  • ECU / PCM: VIN-locked in most vehicles made after 2002. Even a matching part number may require dealer reprogramming or won't communicate with your car's immobilizer.
  • Airbag modules: Cannot be reused from a vehicle that deployed its bags. Legally and functionally, don't reuse deployed airbag components.
  • ABS control modules: Can be VIN-coded or module-paired depending on manufacturer.
  • Transmission control modules (TCMs): Often need programming to the specific transmission and vehicle.
How do I know if a part will fit my car from a different model?

Use the Hollander Interchange guide — ask at our front desk. You can also compare casting numbers directly on the parts, or search by the OEM supplier part number (Denso, Bosch, etc.) which often crosses multiple makes.

Can I interchange ECUs (computer modules) between cars?

This is risky territory. Most ECUs made after 2002 are VIN-locked or paired to the vehicle's immobilizer system. Always match the part number exactly, and confirm whether your vehicle requires programming before purchasing.

Do sister cars need to be the same year for parts to interchange?

Not always — sometimes a wider year range applies. Toyota Camry and Lexus ES share components across entire generation spans (e.g., 2002–2006). Verify year range in the interchange table or ask our staff before pulling.

Do wheels from a sister car fit my car?

If the bolt pattern, hub bore, and offset are compatible, yes. The 5x114.3 bolt pattern is shared by Toyota, Honda, Nissan, Hyundai, Kia, Mazda, and Mitsubishi across many generations. Check the center bore — hub-centric rings can solve small differences.

Is it legal to sell a used part from a salvage yard?

Yes. All parts purchased at U-Pull-It are sold as-is for personal or commercial use. We're a licensed salvage facility. Used parts come with a standard warranty period — check with staff at the counter for current policy.

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