Center Caps, Hub Caps & Trim Rings

What's the Difference Between Center Caps, Hub Caps and Trim Rings?

A center cap covers the center bore of a wheel. A hub cap covers the hub of a steel wheel, while a full wheel cover hides the entire wheel face. A trim ring, also called a beauty ring, dresses the outer edge of the rim.

Many classic steel and Rally wheels use a cap and a trim ring together for a finished, factory-style look. On aftermarket and Rally wheels, the center cap often carries an emblem that identifies the wheel brand or car maker.

Plan the whole wheel finish at once, including matching lug nuts, lug bolts, locks, studs and washers that suit the cap style. If you're still building the full setup, start with our complete selection of wheels and tires.

What Types of Wheel Center Caps Can You Buy?

Wheel center caps come in five common styles, and the right one depends on how your wheel holds the cap.

• Push-through caps insert from the back of the wheel and stay in place once the wheel is bolted on.
• Snap-in caps press into the center opening and lock with retaining clips or tabs.
• Logo spinner caps add a brand emblem to the center of the wheel.
• Rally and Derby-style caps recreate factory designs for classic muscle cars.
• Drum-brake-style caps reproduce the 1967-design bowtie cap.

JEGS offers a black push-through cap, a J-Crown cap and stainless or chrome 4-pc Derby-style sets with the Chevrolet Motor Division logo. Cragar S/S logo spinner caps fit Super Sport wheels in 5 x 4-1/2 in., 5 x 4-3/4 in. and 5 x 5 in. bolt patterns. For forged wheels, Weld Racing offers polished 5-lug caps such as P605-5083 for Sport Forged wheels and P605-5073.

New to aftermarket wheels? Our beginner's guide to custom wheels covers the basics before you buy.

Which Trim Rings and Beauty Rings Fit Steel and Rally Wheels?

Trim rings are sized by wheel diameter and width, so match the ring to your exact wheel size. JEGS stainless steel trim rings fit 15 in. x 4 in., 15 in. x 6 in. and 15 in. x 7 in. Rally wheels. Smooth, hot-rod-style rings in stainless steel or chrome fit 15 in. Rally and OE steel wheels.

JEGS stainless deep-dish trim ring sets are listed by wheel size, ring depth and ring width:

• 15 in. x 8 in. wheels with 2.750 in. depth and 3 in. width
• 15 in. x 8 in. and 15 in. x 10 in. wheels with 3 in. depth and 3.250 in. width
• 15 in. x 7 in. wheels with 2.375 in. depth and 2.750 in. width
• 14 in. x 7 in. stepped-edge wheels with 2.250 in. depth and 2.500 in. width

Vision Wheel also offers its 2543V stainless steel trim ring, with a 3 in. width, for 15 in. Rally wheels. While you're updating the wheel trim, replace worn stems from our Valve Stems & TPMS Sensors category. If your wheels are past saving, browse our Wheels category.

Which Rally Wheel Center Caps Fit Chevy, Pontiac, Olds and Mopar?

Rally wheel center caps are model-specific, so start with your car's make, wheel style and model years. Restoration caps copy original colors and logos.

For Chevrolet builds, pair JEGS Derby-style or 1967-design bowtie caps with the JEGS SS trim ring set. The set fits 15 in. x 7 in. wheels on the 1970-1981 Camaro and the 1971-1972 Chevelle and El Camino SS.

Year One offers Pontiac red arrowhead caps and PMD caps for Rally II wheels. For Mopar Rallye wheels, Year One also offers a 1970 light argent center cap. U.S. Wheel adds a light gray center cap for its 667 and 668 series Chrysler Rallye wheels.

Oldsmobile owners can choose the Golden Star Classic Auto Parts Rally wheel center cap set for the 1968-1972 Cutlass. Wheel Vintiques makes a Rallye center cap for Oldsmobile SSI wheels.

How Do You Measure for Center Caps and Trim Rings?

Measure your original cap or the wheel opening before you order. For a center cap, record the outside diameter of the cap and the inside diameter of the wheel opening. If you have an original cap, check the back for a part number to cross-reference a replacement.

Next, confirm hub clearance. A cap that's too shallow can contact the hub, so compare cap depth to how far the hub sticks out. If you're running wheel adapters and spacers, measure again after they're installed.

For trim rings, match the ring to the wheel diameter and width, then compare listed depth and width on deep-dish rings. Our guide on how to measure a wheel covers size, offset and backspacing. Once you have your numbers, shop the full Wheel Accessories category to finish the job.