Ever wondered how to make your model kits truly stand out? Maybe you’ve seen stunning builds online or at contests and thought, “How do they achieve that level of detail?” The secret often lies in aftermarket model parts—special upgrades that go beyond what comes in the box.
Knowing how to find, choose, and use these parts can transform your projects. In this article, we’ll walk you through the essentials, offer helpful tips, and share insights to boost your builds.
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Understanding Aftermarket Model Parts
Adding aftermarket parts to your scale model kits is one of the most rewarding ways to boost realism and personalize your builds. Whether you’re a beginner or a veteran modeler, aftermarket parts offer a vast world of options to refine, detail, and customize your cars, trucks, planes, and more.
Aftermarket model parts are components produced by independent companies, not included in the original kit. These parts can range from finely detailed engines to photo-etched grilles and intricate decals. Some popular types of aftermarket parts are made for 1/24 and 1/25 scale car models but can be found for almost all scales and genres.
Let’s break down everything you need to know about working with aftermarket model parts: what they are, how to use them, the benefits they offer, practical advice, cost-saving tips, and answers to common questions.
What Are Aftermarket Model Parts?
Aftermarket model parts are high-quality accessories and upgrades designed to enhance plastic model kits. Unlike the parts that come in the primary kit box, these components are crafted by specialty manufacturers and can be purchased separately. They usually come in materials like resin, metal, or photo-etched brass, providing sharper details and realism.
Common Types of Aftermarket Parts
- Detail upgrades: Engines, interiors, brakes, and dashboards with intricate features.
- Exterior components: Custom wheels, spoilers, side mirrors, wipers, and antennas.
- Photo-etched parts: Finer details like grills, emblems, and badges made from thin metal.
- Decals: Period-correct logos, number plates, and livery options not found in the standard kit.
- Tires and wheels: Different tread patterns, whitewalls, or racing slicks.
- Accessory packs: Tools, luggage, racing harnesses, or driver figures.
How to Use Aftermarket Model Parts: A Step-by-Step Guide
Integrating aftermarket parts into your build can feel intimidating at first, but with patience and the right steps, it significantly elevates your model. Here’s a straightforward way to get started:
1. Plan Your Build
- Decide what you want to enhance: Is it extra engine detail? A more accurate interior?
- Research kits and compatible aftermarket parts, paying attention to your scale (e.g., 1/24, 1/25).
- Look for parts from reputable brands known for quality and reliability.
2. Gather Supplies
- Besides your kit and the aftermarket parts, you’ll need:
- Super glue or epoxy (for resin/metal)
- Sharp hobby knife
- Sandpaper or files
- Precision tweezers
- Paint and brushes or airbrush equipment
- Primer (especially for metal/resin parts)
3. Test Fit Before Assembly
- Carefully cut and clean aftermarket parts.
- Dry-fit them to the kit (temporarily attach without glue) to spot any adjustments needed.
- Gently file or sand any rough spots for a precise fit.
4. Paint and Prepare Parts
- For best results, paint small aftermarket parts before attaching them.
- Wash resin and metal parts with mild soap to remove release agents that hinder paint adhesion.
- Apply primer first, then your chosen paint colors.
5. Attach the Parts
- Use a small amount of super glue for resin or metal parts—plastic cement won’t work here.
- Tweezers help place tiny photo-etched or decal details accurately.
- Allow glue and paint to dry thoroughly before handling.
6. Blend and Finish
- Touch up the joins with paint if necessary.
- Weather parts (if desired) with washes and powders for extra realism.
- Add final details, like decals and clear coats.
Benefits of Using Aftermarket Model Parts
If you’ve only ever built models “out of the box,” you’re in for a treat. Aftermarket parts transform a basic kit into a showpiece.
Key Benefits
- Increased Realism: Finer details and accurate shapes surpass what kit parts provide.
- Customization: Build your vision—replica, custom, race car, or even a “barn find.”
- Enhanced Challenge: Applying new skills in painting and assembly boosts satisfaction.
- Greater Variety: Access to alternative parts for rare cars or unique designs unavailable in kits.
Challenges of Aftermarket Model Parts
While the final result is often stunning, aftermarket parts introduce some complexity.
Common Challenges
- Fit Issues: Aftermarket pieces might need trimming or adjusting to fit seamlessly.
- Glue Compatibility: Resin and metal parts can’t be glued with regular plastic cement.
- Skill Level: Small, delicate parts require steady hands and patience.
- Cost: Quality upgrades can add up, especially with international shipping.
These challenges are manageable with careful preparation and the right mindset. Start small, and as your confidence grows, tackle more ambitious upgrades.
Practical Tips & Best Practices
Maximize your success and minimize frustration with these tried-and-true tips.
Choosing Aftermarket Parts
- Stick to Your Scale: Always match the part’s scale to your kit—mixing 1/24 and 1/25 can look “off.”
- Read Reviews: Popular manufacturers are known for superior fit and finish.
- Check Compatibility: Some parts are made for specific kits or brands.
Working With Aftermarket Parts
- Wash Parts: Especially resin and metal—use mild soap and an old toothbrush before painting.
- Prime First: Bare resin or metal won’t hold paint well without primer.
- Test Fit Everything: Dry-fitting helps you spot potential problems before gluing.
- Use the Right Glue: Cyanoacrylate (super glue) works for resin and metal, while plastic cement works for styrene only.
Building for the First Time?
- Start Simple: Try easy upgrades like seatbelts, wheels, or decals before moving to full engine or interior swaps.
- Keep It Clean: Work in a dust-free, well-lit space—small pieces disappear easily!
- Stay Organized: Use trays or small containers to keep parts sorted.
Cost-Saving Tips (Including Shipping Advice)
Aftermarket parts can add up, especially when shipping is involved. Here’s how to keep it budget-friendly:
Shop Smart
- Bundle Purchases: Many retailers offer discounts or lower combined shipping when you buy multiple items.
- Look for Local Shops: Domestic retailers minimize shipping costs and speed up delivery.
- Group Orders: Team up with fellow hobbyists to split shipping costs from overseas suppliers.
- Sales and Clearance: Watch for sales, bundle deals, or clearance sections to score premium parts at lower prices.
Handling Hidden Costs
- Customs Fees: International orders might include import or handling fees—factor these into your budget.
- Weight/Size: Larger resin components or accessory packs may increase shipping costs compared to decals or photo etch sets.
- Return Policy: Consider shops with clear return and exchange policies, especially for pricier components.
Exploring the Aftermarket Marketplace
The hobby market for aftermarket parts is vibrant and innovative. Companies specialize in different techniques, materials, and subjects, from muscle car detailing to race car conversions and classic truck accessories.
- Photo-etched specialists produce metal badges, wipers, and grilles for super-fine details.
- Resin casters provide engine blocks, alternative body shells, and custom interiors for both common and unique subjects.
- Decal makers deliver period-correct livery and unique graphics for creative freedom.
You’ll find options for modifying nearly any vehicle, from NASCAR race cars to vintage pickups and modern supercars. Some brands even offer full transkits—packages to transform a base kit into an entirely new model with new bodywork and interior parts.
Conclusion: Take Your Builds to the Next Level
Aftermarket model parts open up a world of creativity, authenticity, and satisfaction. With careful planning and attention to detail, you’ll transform standard kits into showpieces admired by both beginners and seasoned collectors. The learning curve exists, but each successful project brings greater confidence and pride.
Embrace the possibilities, experiment with new materials and techniques, and make every model your own. Happy modeling!
Frequently Asked Questions (FAQs)
What are aftermarket model parts?
Aftermarket model parts are accessories made by independent companies to customize and enhance standard plastic model kits. They allow modelers to add finer details, accurate components, and unique features beyond what’s in the original kit.
Are aftermarket parts compatible with all kits?
Not always. Most aftermarket parts are designed for specific scales (like 1/24 or 1/25) and sometimes for particular brands or models. Always check compatibility with your kit before purchasing.
Do I need special tools or glues for aftermarket parts?
Yes—most resin or metal parts require super glue, as standard plastic cement won’t work. Fine tweezers, sharp blades, and special primers for resin or metal also help.
Are aftermarket parts expensive?
Prices vary based on type and detail. Simple photo-etch or decal sheets are inexpensive, while full conversion kits or large resin accessories can be pricier. Bundle purchases and choosing local suppliers can help reduce overall cost, especially with shipping considerations.
How do I avoid mistakes when using aftermarket parts?
Start with simple upgrades to build confidence. Always test fit parts before gluing and keep your workspace organized. Reading instructions, watching tutorials, and being patient are key to successful results.