Mayhem Wheels C108040B01 Hardware Kit: What It Includes and How to Check Fitment

The Mayhem Wheels C108040B01 listing is for a Hardware Kit, not a universal repair part for every wheel or center cap.

The current record identifies C108040B01, 2SCREWS-C108040B01 and 8040, describes the offer as 2-piece listing and lists the finish or presentation as Not stated. Those facts narrow the search, but the original item still has to match.

Here is the blunt truth: hardware and inserts that look alike can use different threads, spacing, diameters or attachment points.

View the current Mayhem Wheels C108040B01 listing

What the current listing confirms

Start with C108040B01 and the complete application

Match C108040B01, 2SCREWS-C108040B01 and 8040 exactly. Then compare the wheel or cap family named on the live page. A shared brand logo does not prove that an insert, screw kit, spacer, emblem or tool fits another design.

What is included?

The current record describes the offer as 2-piece listing. Read the live title, description and photographs together. A photo can show the parent center cap for context without including it in the package.

Fitment depends on the receiving part

The listed attachment description is Screw-on / screw-retained. Compare the original mounting points, recess, thread style, hole spacing and depth. Do not force an accessory into a part that was not designed for it.

For screws and bolts, verify diameter, pitch, length and head style. For inserts and emblems, verify the usable recess and attachment method. For spacers, rings and tools, verify the complete profile and application number.

Finish and appearance still matter

The current listing uses Not stated. A small accessory can be visually obvious when its sheen, logo treatment or color does not match the remaining wheel hardware.

What this record does not establish

This guide does not invent dimensions, thread pitch, material, torque, adhesive type or cross-brand interchange. If one of those facts controls the repair, measure the original and request confirmation.

Measure the working interface—not the decorative outline

The measurement that controls fitment is the surface that actually engages the wheel or center cap. For an insert, that can be the recess diameter and usable depth. For a screw, it is the thread diameter, pitch, usable length and head shape. For a ring, spacer or key, it is the profile that contacts the receiving part.

Photograph the measuring tool in place and label the start and end points. A seller cannot reliably compare an unlabeled number, and a measurement across the decorative face may be completely different from the hidden working dimension.

Package quantity and one-wheel coverage

The listing describes 2-piece listing, but that does not automatically tell you how many wheels the package services. Some wheels use several inserts or fasteners on one wheel; other accessories are one per center cap. Count the attachment points on the exact application.

When replacing only part of a visible set, compare aging and finish as well as fit. A new piece can look brighter than the remaining originals even when the application is correct. Decide whether the goal is a mechanical repair, a cosmetic match or both.

Installation should confirm the match—not create it

Clean the receiving surface gently and test the new component by hand. Holes should align, a key should engage fully, and an insert should sit square before meaningful pressure is applied. Installation is not the time to force mismatched geometry together.

For threaded hardware, start every fastener by hand and use the tool and tightening specification appropriate to the wheel manufacturer. For adhesive-backed pieces, prepare the surface according to the product instructions and confirm alignment before the adhesive makes contact.

Stop if the part rocks, binds immediately, bottoms out early or leaves an unexpected gap. Recheck the complete identifier and working dimensions before anything is cut, drilled, bent or permanently bonded.

A practical comparison routine

1. Record every identifier. Match C108040B01, 2SCREWS-C108040B01 and 8040 character for character.
2. Photograph the original. Capture the face, side and attachment surface.
3. Measure the working features. Label diameter, length, spacing or recess depth.
4. Confirm quantity. The current offer says 2-piece listing.
5. Reopen the live page. Verify the offer immediately before checkout.

Common mistakes to avoid

• Buying by brand alone
• Assuming every screw from one manufacturer uses the same thread
• Measuring an outer decorative face instead of the working recess
• Confusing one piece with a complete set
• Forcing a part when the holes or tabs do not align

Frequently asked questions

Is C108040B01 universal?

No. It should be treated as application-specific unless the current manufacturer record explicitly establishes wider compatibility.

Which identifier matters most?

Start with C108040B01, 2SCREWS-C108040B01 and 8040, then confirm the receiving cap or wheel design and the physical dimensions that control fitment.

How many pieces are included?

The current record says 2-piece listing.

Does the package service one wheel or a complete vehicle?

That depends on how many pieces the exact wheel design uses. Count the attachment points and compare that number with the written package quantity.

Can I substitute a similar-looking part?

Not without matching the working dimensions and attachment design. Appearance alone is weak evidence.

Should I modify the new part?

Do not cut, drill, bend or grind it until the application is confirmed. Modification can make a return impossible and still leave the wrong part.

Where can I get help?

Send the complete identifier, labeled measurements and clear photographs through the WheelCenterCaps.com contact page.

Shop the exact application

• View the Mayhem Wheels C108040B01 listing
• Ask for fitment help

Match the application first, the working dimensions second and the package quantity third.