Original vs. Aftermarket Parts for Your Z: What Really Matters

When it comes to restoring a classic Z—whether it’s a 1970–1973 Datsun 240Z or a 1974–1978 260Z/280Z, there’s one debate that never quite dies: Should you stick with original parts, or is aftermarket the smarter move?

 

For some, “OEM or nothing” is a badge of honor. For others, reproduction or upgraded parts are simply practical. And if you’re new to Z car restoration, the loudest opinions don’t always come with the best advice.

 

The truth is that you don’t need to pick a side. You just need to know what matters most. Focus on fit, function, value, and how to choose the right part for your specific build. In this guide, we’ll break down the pros and cons, clear up the confusion, and help you make smart decisions no matter where you are in your restoration journey.

 

 

What Counts as Original or Aftermarket?

Let’s start with some quick definitions:

 

• OEM (Original Equipment Manufacturer): Parts made by Nissan or the companies they originally contracted.
• NOS (New Old Stock): Genuine vintage parts that were never sold or installed.
• Aftermarket: New parts made by third-party companies—some are reproductions, others are upgrades.

Original parts are often seen as “authentic,” but they’re also aging out, hard to find, and usually pricey. That’s why most real-world restorations blend both original and aftermarket parts.

 

Quick reality check: Nissan stopped supporting many classic Z parts decades ago. Aftermarket is often the only practical path forward.

 

 

Quality & Fit: The Real Divide

Not all aftermarket parts are created equal. The best ones match or exceed the quality of the originals. The worst… well, they make you wish you’d just paid the extra for NOS.

 

What to Look For:

 

• Material quality: Thicker gauge steel, correct plastic blends, UV resistance
• Fitment precision: Does it line up with factory mounting points?
• Finish details: Textures, gloss level, or even hardware included

 

At Resurrected Classics, every part we offer, from replacement fenders to restoration-ready hoods, has been tested for real-world install and quality. We’re builders too, and we only sell what we’d use on our own Zs.

 

 

When Aftermarket Makes More Sense

There’s no shame in going aftermarket. In fact, for many parts, it’s not only acceptable, it’s better.

 

Why?

• Availability: Finding an OEM door in usable shape is tough. Reproduction doors give you a clean slate.
• Cost: Even if you find NOS, you’ll pay a premium. Aftermarket lets you keep your budget focused on performance or paint.
• Upgrades: Some aftermarket parts are subtly improved—better corrosion protection, reinforced mounting tabs, or easier installation.

 

Our product line includes high-quality sheet metal, rubber, plastic, and brake line kits built to OEM+ standards. Many of our customers start out nervous about non-OEM parts. But once they see how well our panels and kits install, they realize it’s not a compromise—it’s just smart.

 

 

The Price of Purity: Original vs Aftermarket Costs

Let’s be honest, a full OEM restoration is often out of reach. The parts are rare, the prices are rising, and you’re still dealing with 40-year-old plastics or metal.

 

Cost Comparison Snapshot:

Part	OEM/NOS (est.)	Aftermarket (RC)
Hood	$1,200+ (if found)	$525
Door Shell	$800+ used	$545
Fender	$600+ NOS	$375

 

Unless you’re building a concours car for Pebble Beach, the aftermarket path offers a smarter balance between authenticity and usability.

 

 

Case-by-Case: What Matters Most for Your Build

There’s no one-size-fits-all answer here.

 

• Daily Driver? Reliability and function should lead.
• Weekend Warrior? Balance original flair with practical upgrades.
• Showpiece or Resto-Mod? Your priorities will steer your parts list.

 

If you’re a first-time restorer, the aftermarket path might be your best ally. You’ll avoid parts-hunting burnout and still end up with a car you’re proud to show and drive.

“Aftermarket” doesn’t mean cheap. It means accessible. It means smart. And when done right, it means quality.

 

 

Interior, Suspension, and Braking: Where Repro Shines

Don’t overlook the systems that make your Z fun (and safe) to drive. Whether you’re refreshing the interior or updating your undercarriage, the aftermarket often delivers where OEM left off.

 

• Console parts and trim kits are hard to source in good condition. Our interior components provide clean fitment with minimal prep.
• Suspension bushing kits modernize the ride quality without sacrificing feel.
• Brake line kits offer plug-and-play simplicity and safer braking.

 

Every small upgrade adds up. The goal isn’t just to look good, it’s to drive confidently.

 

 

Final Thoughts: Choose the Right Part for the Right Reason

The Z restoration world isn’t about picking a side. It’s about building a car that works—for your budget, your skill level, and your vision.

 

At Resurrected Classics, we believe in restoring these cars with respect, not rigidity. Whether you’re chasing purity or practicality, our lineup of fenders, doors, hoods, interior parts, and full system kits is built to support your vision, your standards, and your success.