Need a sr20det for sale that actually comes with real history behind it? We import genuine Nissan SR20DET engines straight from Japan for the S13, S14, and S15 chassis. Every unit gets compression tested and inspected before it ever goes on the site. If you're building a 240SX or Silvia, this is the turbo four-cylinder that started the swap culture, and we back ours with a real warranty instead of a sold as is disclaimer.

SR20DET overview

The SR20DET is Nissan's turbocharged 2.0L four-cylinder, and it's the engine that made the 240SX swap scene what it is. It's compact, it responds well to boost, and parts support is huge because so many builders run one. We source ours from low-mileage Japanese donor cars, not from a domestic pull with a mystery past.

If you're weighing your swap options, our Nissan Engines collection covers other JDM Nissan builds, and our Nissan Transmissions have manual and automatic gearboxes to match. Some 240SX owners also start with a KA24DE before stepping up to a turbo build, so it's worth a look if you're still deciding.

Specifications

• Engine: SR20DET 2.0L turbocharged inline four 
• Valvetrain: DOHC, factory turbocharged from the box 
• Source: Silvia and 240SX donor chassis (S13, S14, S15) 
• Mileage: varies by unit, actual figure listed on each product page 
• Origin: Japan, direct import 
• Condition: compression tested and visually inspected before listing

What's included

You get the long block as shown in the listing photos, with the harness and accessories attached exactly as pictured. We photograph the actual engine you're buying, not a stock image pulled from the internet.

Redtop vs blacktop vs S15

These names get thrown around loosely, so here's the short version. Match the variant to your chassis before you order, since none of these bolts fit the same way.

Fitment & compatibility

This engine fits Nissan 240SX and Silvia chassis, depending on which variant you order, covering S13, S14, and S15 platforms. Confirm your exact chassis code against the listing before buying, or contact our team if you're not sure which one your car needs.

Inspection, warranty & shipping

Every SR20DET we sell is compression tested and visually inspected before it's listed. We state the real mileage pulled from the donor car in Japan on every listing. Your purchase comes with our 90-day limited warranty, which goes further than the sold as is terms you'll see on a lot of these engines elsewhere.  

Ready to build? Add this SR20DET to your cart, browse our Nissan inventory for a matching transmission, or contact our team if you want help confirming fitment for your S13, S14, or S15 before you order.

FAQs

What is an SR20DET engine?

The SR20DET is Nissan's turbocharged 2.0L four-cylinder, factory installed in the 240SX and Silvia. It's the engine most associated with the RWD JDM swap scene.

What's the difference between a redtop and a blacktop SR20DET?

The redtop is the earlier version, usually paired with an automatic transmission, while the blacktop came later and is the more common pick for a manual swap. Both are S13-era engines.

Is the S15 SR20DET better than the S13 or S14 version?

The S15 version uses a ball-bearing turbo and some internal updates, which give it slightly better throttle response. It's the newest revision of the SR20DET.

Do you compression test on every SR20DET?

Yes. Every engine we sell, including this one, is compression tested and visually inspected before it's listed.

Where do your SR20DET engines come from?

We import them directly from Japan, and each listing states the actual mileage pulled from the donor vehicle.

What warranty comes with this engine?

This SR20DET ships with our 90-day limited warranty, backed by JDM State Motors of NC LLC, a registered North Carolina company in Garner.

Do you ship SR20DET engines nationwide?

Yes. We ship across the United States. Contact our team before you buy if you need a shipping quote or help confirming which chassis your engine fits.