Working on this vehicle? Write estimates, send inspections & invoice customers from your phone.

    Start 14-Day Free Trial
    ← All vehicle specs
    Paint Color Codes

    2018 Chevrolet Silverado 2500HD Paint Color Codes

    AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.

    Working on this 2018 Chevrolet Silverado 2500HD? Run just this one job through Repairius.

    No big switch. Write the estimate, text it for approval, and get paid on your phone. Keep everything else the way it is.

    14-day free trial · credit card required · cancel anytime

    Quick Reference: 2018 Silverado 2500HD Colors

    Color NamePaint CodeType
    Summit WhiteGAZSolid
    Silver Ice MetallicGANMetallic
    BlackGBASolid
    Red HotG7CSolid
    Deep Ocean Blue MetallicG1KMetallic
    Graphite MetallicGDCMetallic
    Havana MetallicG2XMetallic
    Cajun Red TintcoatGPJPearl
    Iridescent Pearl TricoatGP4Pearl

    Where To Find Your Paint Code

    Finding the exact paint code for your 2018 Chevrolet Silverado 2500HD is straightforward. Unlike many other manufacturers that place the information sticker on the driver's side door jamb, General Motors puts it inside the glove box.

    Open your glove box and look for a silver sticker labeled "Service Parts Identification." This label contains a wealth of information about your truck, including its VIN, options, and, most importantly, the paint code. On this sticker, look for a code that starts with "BC/CC," which stands for Base Coat/Clear Coat. The code you need is the one that follows, often beginning with a "U" (for Upper Body Color). For example, Summit White will be listed as WA8624 or GAZ. The three-letter code (GAZ) is the most commonly used code for ordering paint.

    Always use this code to ensure a perfect match, as color names can be similar across different model years while the paint formula is slightly different.

    Best Touch-Up Paint Sources

    Once you have your paint code, you have several options for sourcing touch-up paint to fix rock chips, scratches, and other minor blemishes.

    • Dupli-Color: Widely available at auto parts stores like AutoZone and Advance Auto Parts, Dupli-Color offers a range of paint pens, brush-in-bottle applicators, and aerosol sprays. Their "Perfect Match" series is designed to match factory finishes, but check their product finder with your specific code (e.g., GAZ/WA8624) to confirm availability.
    • AutomotiveTouchup: This online retailer specializes in providing exact-match factory colors in a variety of formats, from small ½ oz. bottles for tiny chips to professional-sized spray cans and quarts for larger jobs. They are an excellent source for precision-matched colors, including the more complex tri-coats.
    • Tcoat Custom-Mix: For a guaranteed match, especially for older or faded vehicles, a custom-mixed paint from a specialist like Tcoat can be a great option. They can mix paint to your specific code and provide it in aerosol cans or ready-to-spray pints and quarts.
    • Chevrolet Dealership: Your local Chevy dealer's parts department can order touch-up pens and bottles directly from GM. This is often the most reliable way to get the exact OEM paint, though it may be a more expensive option.

    How to Use Touch-Up Paint

    A professional-looking repair is possible with patience and the right technique. For minor chips and scratches, follow these steps:

    1. Clean the Area: Thoroughly wash the damaged area with soap and water, then use a wax and grease remover or isopropyl alcohol to ensure the surface is perfectly clean.
    2. Primer: For deep scratches that go down to the bare metal, apply a thin layer of automotive primer. This helps the base coat adhere properly and prevents rust. Use a fine-tipped brush for best results.
    3. Base Coat: Shake the paint bottle or pen thoroughly. Apply several thin coats of the color base coat, allowing each coat to dry for at least 20-30 minutes. Building up the color slowly is key to a smooth, even finish. Avoid applying one thick coat, as it will be prone to running and will not dry properly.
    4. Clear Coat: After the final base coat has dried completely (as per the manufacturer's instructions), apply one or two thin layers of clear coat. The clear coat protects the base coat, provides a glossy finish, and helps the repair blend in with the surrounding paint.

    Color Matching Tips for Pearls and Tri-Coats

    The 2018 Silverado HD was offered in two premium tri-coat pearl colors: Cajun Red Tintcoat (GPJ) and Iridescent Pearl Tricoat (GP4). These finishes have a unique depth and shimmer that makes them more challenging to match.

    A tri-coat paint consists of three stages: a solid base color, a translucent pearl mid-coat, and the final clear coat. The pearl mid-coat is what creates the dramatic color shift and depth.

    When touching up these colors, it is crucial to purchase a three-stage touch-up kit that includes all necessary components. The final appearance is highly dependent on the thickness of the pearl mid-coat. Always use a test card included with your paint kit to practice your application and confirm your technique produces a color that matches your truck before applying it to the vehicle itself. For anything larger than a small stone chip, we strongly recommend seeking a professional painter, as blending a tri-coat pearl is an advanced skill.

    Find a trusted body shop on Repairius.

    Need service on your Chevrolet Silverado 2500HD?

    Request service from shops in your area.

    More specs for the 2018 Chevrolet Silverado 2500HD

    Oil Capacity & Filter

    Capacity, weight, filter PN, drain plug torque, change interval.

    Fluid Type Specs

    Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.

    Coolant Capacity & Type

    Total system capacity, OEM coolant spec, flush interval, bleed tips.

    Transmission Fluid & Service

    Trans model, fluid spec, capacity, filter PN, service interval.

    Torque Specifications

    Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.

    Brake Pad & Rotor Specs

    Pad PNs, rotor size, min thickness, caliper torque.

    Tire Size & Pressure

    OEM size, cold psi, bolt pattern, wheel size, TPMS.

    Battery Size & Group

    Group size, CCA, AGM/flooded, dimensions, reset note.

    A/C Refrigerant & Oil

    R-134a or R-1234yf, charge oz, PAG oil spec.

    Bulb Sizes (Headlight, Tail, Fog)

    Headlight, fog, tail, turn, reverse, interior.

    Factory Maintenance Schedule

    Service intervals by mileage, severe-duty notes, known issues.

    Towing Capacity & Payload

    Max tow, payload, GVWR/GCWR, hitch class by trim.

    Fuse Box Diagram & Amperage

    Fuse box locations, layout, amps, and what each fuse controls.

    Serpentine Belt Routing & Length

    Belt routing, length, rib count, OEM + aftermarket PNs.

    Wheel Alignment Specifications

    Camber, caster, toe ranges (front & rear), adjustability notes.

    Wiper Blade Sizes

    Driver/passenger/rear blade size, attachment, OEM + cross-refs.

    Spark Plug Type & Gap

    Plug PN, gap, torque, interval by engine.

    Transmission & Axle Gear Ratios

    Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.

    Key Fob Programming

    DIY programming steps, FCC ID, fob PN, battery, transponder.

    Same spec — other model years

    Maintenance & repair guides

    Browse by make

    Running an auto or diesel repair shop?

    Compare Repairius to the shop software you're paying for

    $99.99/month (first location included), unlimited users, 14-day free trial.

    Driving or Managing a Fleet?

    Use Dispatchtool for truck navigation, driver communication, dispatching, and fleet management.

    Visit Dispatchtool
    Run your shop from estimate to payment

    Don't overhaul your shop. Test Repairius on your next job.

    Repairius keeps estimates, work orders, real-time job assignment, customer and vehicle history, inventory, and payments in one place — on desktop and in your pocket.

    14-day free trial · credit card required · cancel anytime

    Not a mechanic? Send Repairius to your shop — they can run estimates, jobs, and invoices in one place.

    Know someone who needs this?

    Share this page with a mechanic, a shop owner, or a friend working on the same problem.

    Know a mechanic or shop owner Repairius could help?

    Send them Repairius in one tap. Free listing, online booking, reminders and the full shop workflow.

    Text them Email