Pro Comp 703186502 Center Cap Guide: How to Verify the Right Part
If 703186502 is the number you are trying to replace, you are close—but you are not done.
Here is the useful starting point: the listing names Pro Comp, identifies 703186502, 6031CAP1, S909-16 and lists a Flat Black finish. The remaining fitment work is a physical comparison, not a guess.
Here is the blunt truth: a similar-looking part is not a confirmed match.
View the current Pro Comp 703186502 center cap listing
The known facts in one place
| Product | Wheel Center Cap |
|---|---|
| Brand / manufacturer | Pro Comp |
| Part number(s) listed |
703186502, 6031CAP1, S909-16
|
| Store SKU | 703186502 6031CAP1 S909-16 |
| Finish / color | Flat Black |
| Attachment style | Screw-on / screw-retained |
| Sold as | Sold individually |
| Condition | New replacement item |
| Details stated in title | Resin Logo |
703186502 and the other listed identifiers
The current product record tells shoppers to verify 703186502, 6031CAP1, S909-16. Do not silently drop a suffix or choose only the shortest number because it is easier to type. Record every identifier shown on your original item, then compare the complete set with the live listing.
These numbers appear together in this listing. That does not prove that every item carrying only one of them is universally interchangeable. The physical design still has to match.
The listed finish is Flat Black
The product record describes the finish as Flat Black. That wording matters when you are replacing one item instead of a complete set. “Black” is not specific enough when gloss, matte, satin and mixed-finish parts can look very different beside one another.
Compare the live product image with the surviving parts in neutral daylight. Also compare the logo and any decorative details that are actually visible. Lighting, dust and years of exposure can make the same finish photograph differently.
Details called out in the product title
The title specifically calls out Resin Logo. Treat that detail as part of the identification check. A matching base number with a different face treatment may still be the wrong visual replacement.
What the listing says about attachment
The supplied product record lists the attachment style as Screw-on / screw-retained. That is the mounting claim supported by this record. It does not supply unstated clip dimensions, fastener sizes, hole spacing or installation torque.
Compare the original item and the current product photos before installation. Nothing should need to be forced into place, and a fastener that immediately binds is a reason to stop—not to reach for a power tool.
How many pieces does the listing describe?
The product record says Sold individually. Quantity language matters: a product photograph may show more than one angle or component without promising that every pictured item is included.
What this product record does not establish
The supplied listing does not state an exact cap diameter, height or depth, the material or whether mounting hardware is included. Those are reasons to verify—not invitations to guess.
If one of those details decides fitment, compare the original item directly with the live product photos or contact WheelCenterCaps.com before ordering.
Use a side-by-side match, not a memory test
If one original cap survives, it is your best evidence. Clean only enough grime to read the markings, photograph 703186502, 6031CAP1, S909-16 and keep the cap nearby while reviewing the listing. Compare the face and back under similar light. Do not sand, reshape or remove clips merely to make a questionable replacement appear closer.
One correct replacement is the goal, not the largest list of possible interchanges. Unless the current record explicitly identifies another code, treat outside aliases as leads that still require a physical match. This keeps an unverified marketplace cross-reference from becoming a fitment claim.
Stop condition: if the complete identifier or the rear design disagrees, do not install the part. Contact Pro Comp support or the seller with the photos you collected.
Make the physical comparison reproducible
Make support easy to answer. Send one message containing 703186502, 6031CAP1, S909-16, 703186502 6031CAP1 S909-16, a full wheel photo, front and rear images of the original, and the one measurement that decides your concern. A compact evidence set produces a more useful answer than several messages that reveal the part details one at a time.
Inspect the shipment before installation. Compare the received label, finish, quantity and visible design with the order page while the packaging is intact. Confirm 703186502, 6031CAP1, S909-16 again. Finding a discrepancy before clips are flexed or hardware is tightened keeps the evidence clear and the return process simpler.
Check center clearance when it is relevant. If an axle end, locking hub or other component projects through the wheel center, include that clearance in the comparison. The supplied listing does not promise an open-end conversion or extra internal room unless it states one. Ask before modifying the new part.
Save the successful match. Once the part has been verified, keep a rear photo, the complete 703186502 identifier and the product link with your wheel records. That small archive turns the next loss into a direct lookup and preserves details that may be hidden after installation.
Compare sheen, not only color. The record uses Flat Black. Look at how light rolls across the surface and how the logo or accents contrast with it. Dust and aging can dull an original, so finish is best used after the identifier and mechanical design agree—not as a shortcut around them.
Manage glare instead of editing it away. Reflective and dark finishes can hide edges in a phone photo. Move the light or the part until the surface is readable, but do not use filters that change Flat Black. A neutral, unfiltered image gives the seller better evidence and makes a one-cap replacement easier to compare with the remaining set.
The cap fits the wheel—not the vehicle badge
A vehicle year, make and model cannot identify an aftermarket wheel center cap by itself. The same truck, SUV or car can wear factory wheels, several aftermarket wheel models or a different wheel on each trim package.
Use vehicle information as background only. The stronger evidence is the complete part number, the wheel itself and a physical comparison of the original cap with the current listing.
A matching logo is only the first check
Many wrong-cap orders begin with a convincing front view. A logo, outline or finish may look right while the back of the cap uses a different shell profile, retention layout or mounting position. The supplied record does not establish that a similar-looking cap with another part number is interchangeable with this one.
Set the original cap beside the live product photos and compare both sides in the same order. Start with the complete molded or printed number. Then check the face, edge profile and every visible point where the cap meets the wheel. If one photo hides the feature that decides the match, treat that detail as unresolved.
Also account for ordinary wear. Sun exposure, brake dust, cleaners and scratches can change how an older cap looks without changing its identity. Use finish as supporting evidence, but let the complete identifier and physical design carry more weight.
Document the original before making the match
A few clear photos and notes are more useful than trying to remember a part after it has been removed. Clean only enough dirt to reveal the identifier and attachment details; do not grind, scrape or polish away markings. Work in even light and keep the camera square to the item so perspective does not exaggerate its shape.
- Capture the identifier. Photograph the complete number in focus, including any prefix, suffix, dash or space. Write it down exactly as shown.
- Photograph both sides. Take a straight-on face image and a clear rear view. Add close-ups of retention points, holes, tabs or other features that are actually present.
- Record comparison measurements. When a measurement is needed, note where it starts and ends and which tool you used. A number without consistent reference points is easy to misread.
- Save the listing evidence. Compare your notes with the current title, description and photos at checkout. Product offers can change, so confirm quantity and included pieces on the page you are buying from.
If the original item is missing, do not replace it with a guess based on the vehicle alone. Record the wheel brand, any wheel model or casting numbers you can actually see, and clear photos of the mounting area. Send that evidence when asking for help; it gives the seller something specific to evaluate.
A no-guesswork identification checklist
-
Read every identifier. Match
703186502,6031CAP1,S909-16, the SKU where useful and every number visible on the original cap. - Compare the front. Check the outline, logo, finish and any decorative details shown in the live listing.
- Compare the back. Match the shell profile, retention points and mounting locations without assuming a similar face means the same cap.
- Measure consistently. If dimensions are not published, measure the surviving cap and ask the seller to confirm the same points on the replacement.
- Confirm the offer. Verify finish, quantity and included hardware on the current product page before checkout.
Frequently asked questions
Will 703186502 fit my vehicle?
Only if the wheel on that vehicle uses the matching center-cap design. Vehicle year, make and model alone are not enough.
Which numbers should I match?
The current record lists 703186502, 6031CAP1, S909-16 and store SKU 703186502 6031CAP1 S909-16. Match the complete identifiers and product design instead of relying on one shortened number.
What finish does the listing identify?
The supplied product record lists Flat Black. Compare the live image with the parts already on the wheel before ordering one replacement.
How does it attach?
The listing identifies Screw-on / screw-retained. No unstated mounting dimensions or fastener specifications are assumed here.
Is the listing for one piece or a set?
The product record says Sold individually.
Is mounting hardware included?
The supplied record does not establish that. Do not assume screws, bolts, retainers or tools are included unless the live product page explicitly says so.
What are the dimensions?
No exact diameter, height or depth is stated in the supplied record. Measure the original cap consistently and request confirmation rather than borrowing a measurement from another listing.
Shop the correct replacement
Match the identifiers first, the physical design second and the finish third. That order is faster than processing a return.