Axiom Supply Billet Aluminum Valve Stem Cap Set | Set of 4 | T6 Aluminum | Black Anodized | SKU AXVCSET
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
The Axiom Billet Valve Stem Cap Set (SKU AXVCSET) is a set of 4 precision-machined T6 aluminum valve stem caps with a corrosion-resistant black finish. Each cap includes a built-in O-ring that seals out water, dirt, and corrosion — especially important for trucks and UTVs that see mud, snow, or off-road abuse. Hex-style design with a laser-etched Axiom logo adds a rugged, custom look to any wheel setup. Fits standard Schrader valve stems on cars, trucks, SUVs, UTVs, and aftermarket wheels. Lightweight, durable, corrosion-resistant. Sold as a set of 4.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | AXVCSET |
| Brand | Axiom Supply |
| Type | Billet valve stem cap set |
| Quantity | 4 caps per set |
| Material | T6 aluminum |
| Finish | Black anodized — corrosion-resistant |
| Seal | Built-in internal O-ring |
| Design | Hex-style with laser-etched Axiom logo |
| Thread | Standard Schrader valve stem (TR-413 / TR-414 compatible) |
| Price | $9.99 |
| Application | Universal — cars, trucks, SUVs, UTVs, trailers, OEM and aftermarket wheels |
| Sold As | Set of 4 |
What Is and Is NOT Included
| Item | Included |
|---|---|
| 4x black anodized T6 aluminum valve stem caps with built-in O-ring | ✓ |
| Valve core removal tool | ✗ NOT included — these are caps only, not a combo tool |
Verified Fitment
| Application | Status |
|---|---|
| Standard Schrader valve stems (cars, trucks, SUVs) | ✓ |
| OEM and aftermarket wheels | ✓ |
| UTVs and off-road vehicles | ✓ |
| Trailers with standard Schrader stems | ✓ |
| TPMS valve stems with non-standard thread or hex-base design | ⚠️ Confirm thread compatibility before ordering |
| European metric valve stems | ⚠️ Confirm thread spec before ordering |
Critical Compatibility
| Configuration | Notes |
|---|---|
| TPMS-equipped vehicles | Some TPMS valve stems use non-standard threads or require a specific cap design — confirm compatibility before ordering |
| Damaged or cracked valve stems | A cap will not seal a compromised stem — inspect and replace the stem itself if damaged |
| Overtightening | Hand-tight is sufficient — overtightening billet aluminum caps can cross-thread or crack the valve stem |
Common Questions
How many caps come in the set?
4 — enough for a standard 4-wheel vehicle. For a dual-axle trailer or additional spare, order an extra set.
Do these actually seal, or are they just decorative?
They seal. Each cap has a built-in O-ring that keeps water, dirt, and debris out of the valve stem — this isn't a purely cosmetic cap.
Will these work with TPMS sensors?
Confirm your TPMS valve stem type before ordering. Some TPMS stems use non-standard threads or require a specific cap design to avoid sensor interference.
How tight should I install these?
Hand-tight only. These are billet aluminum, not the thin stamped plastic of factory caps — overtightening can cross-thread or crack the valve stem.
The Obsidian Take
The AXVCSET is for the truck or UTV owner who wants valve stem caps that actually do something beyond looking good — T6 aluminum, black anodized, hex design with a laser-etched logo, and a real O-ring seal that keeps mud, snow, and moisture away from the valve core. A small, inexpensive upgrade over the stock plastic caps that tend to crack or go missing.
The only real check before ordering: confirm your TPMS compatibility if your vehicle has tire pressure sensors, since some TPMS valve stems need a specific cap design.
Manufacturer Data Disclaimer: Specifications sourced from Axiom Supply and authorized distributor documentation. Obsidian Forged Auto Supply is an authorized Axiom Supply dealer. Manufacturer specifications are subject to change without notice.