Hollander Interchange Explained: How to Find Used Parts That Fit Across Different Cars
The Hollander interchange is the industry’s secret weapon for finding parts. One number tells a yard exactly which cars carry a part that fits yours.
Photo by U-Pull-It
Direct answer: A Hollander interchange number is a code that groups auto parts confirmed to fit across multiple vehicles, years, and trims. Every major salvage yard uses the Hollander system, so when you hand a clerk a Hollander number, they can search inventory across the yard, and often across sister locations, instantly. It is the single fastest way to widen your donor pool without guessing.
Hollander Interchange Explained: How to Find Used Parts That Fit Across Different Cars from U-Pull-It.Video: Starting Your Side Hustle | Used Auto Parts to Flip | Pt. 1
What is the Hollander interchange?
The Hollander Interchange Manual is the industry-standard database recyclers use worldwide. It assigns a unique Hollander number to each interchangeable part group, so every part carrying the same number is confirmed compatible. Instead of hoping a part from a different year fits, you are working from the same reference the professionals use.
How do you find a Hollander number?
You do not need a dealer account. Reputable eBay Motors sellers list Hollander numbers, Car-Part.com shows interchange groupings, and the yard clerk can look one up at the terminal. Cross-reference catalogs at parts stores and RockAuto can also point you to compatible applications you can reverse-search.
Ask the yard clerk to pull the Hollander number at their terminal
Check Car-Part.com — the interchange view lists compatible donors
Look at reputable eBay Motors listings that publish Hollander numbers
Reverse-search RockAuto applications to see what else a part fits
How do platforms make more parts fit?
Automakers share platforms to cut costs, which is why a single part often fits several models and brands. Knowing the platform expands your options the moment your exact car is not in the yard. The tables below show common part interchange groups and the engine and platform families that share the most components.
What to verify before you buy an interchange part
Interchange gets you a shortlist, not a guarantee. Before pulling the part, confirm the casting or forging numbers match, the bolt pattern and mounting points are identical, the electrical connectors share pin count and lock orientation, and any option codes (tow package, limited-slip, premium audio) line up. For engine-specific parts, the 8th VIN digit must match.
Quick-reference tables
Hollander interchange examples by part category
Part
Example Hollander #
Verify
Headlight assembly
1590-04R
Driver/passenger side specific
Engine long block
610-00890
8th VIN digit engine code
Automatic transmission
746-01234
Gear count + output shaft
Door
2800-XXXX
Mirror type + window type
Wheel / rim
8041-XXXX
Bolt pattern, offset, center bore
Axle shaft
3890-XXXX
Spline count + ABS reluctor ring
Platform families that share major parts
Platform / engine
Vehicles that share components
Honda K24
Accord ’03–12, CR-V ’02–11, TSX ’04–08, Element ’03–11
GM LS V8
Silverado, Camaro, Corvette, Tahoe, Trailblazer
Toyota MC platform
Corolla, Matrix, Pontiac Vibe, Scion tC/xB
Nissan VQ35
350Z, Altima V6, Maxima, Murano, Pathfinder
VW/Audi MQB
Golf, Jetta, Tiguan, Audi A3/Q3
GM truck 5x139.7
Silverado 1500 / Sierra 1500 (many shared parts)
Field checklist
Step 1: Identify your part and note your year, make, model, engine, and trim
Step 2: Find the Hollander number via Car-Part.com, eBay, or the yard terminal
Step 3: Give the number to the clerk and ask what matches in inventory
Step 4: Expand to sister vehicles on the same platform if needed
A Hollander number is a code from the Hollander Interchange Manual that groups auto parts confirmed to fit across specific vehicles, years, trims, and options. Parts sharing the same number are interchangeable.
How do I find the Hollander number for my part?
Ask the yard clerk to look it up at their terminal, check Car-Part.com’s interchange view, or find it on reputable eBay Motors listings that publish Hollander numbers.
Can two parts share a Hollander number but still not fit?
Interchange narrows the field but you should still verify. Connector pin count, casting numbers, programming, and option codes can differ, so confirm those before pulling the part.
Do all junkyards use the Hollander system?
Most professional full-service and self-service yards use Hollander interchange in their inventory systems, which is why giving a clerk the number gets you an answer fast.
