1 18

JDM Mazda 20B 3-Rotor Twin-Turbo Engine for Sale

JDM Mazda 20B 3-Rotor Twin-Turbo Engine for Sale

$14,999.00 USD
$14,999.00 USD
Sale SOLD OUT
Shipping calculated at checkout.

Sold Out

  • Please Inspect All Images Before Purchase
  • 35,000 - 40,000 miles
  • Confirm Vehicle Fitment Before Purchase
30 Days Warranty For Performance
90 Days Warranty For Non-Performance
Rotary Engines Are Sold As Is

JDM Mazda 20B 3-rotor engine for sale, imported from Japan for the 1990-1995 Mazda Eunos Cosmo and equipped with a sequential twin-turbo system.

Mazda 20B-REW 3-Rotor Twin-Turbo Engine Details

JDM 20B REW 3 ROTOR Twin-Turbo Mazda EUNOS COSMO Engine 90-95

  • ENGINE ONLY
  • TRANSMISSION NOT INCLUDED
  • Japan Import with compression-tested performance

"C" SERIES 20B HAS THE HEAVY DUTY (THICKER) REAR IRON PLATE

  • PARTS INCLUDED:
  • Complete engine
  • Intake manifold
  • Exhaust manifold
  • Sequential twin turbo
  • Power steering pump
  • A/C compressor
  • Alternator
  • Fuel rail
  • Injectors
  • Throttle body
  • Ignition wires
  • Pulleys
  • Oil pan

Looking for a 20B 3-rotor engine for sale? This JDM Mazda 20B-REW offers the rare three-rotor configuration sought by rotary enthusiasts and builders. Its sequential twin-turbo design makes it a strong foundation for an Eunos Cosmo replacement or a properly planned custom Mazda swap. This Mazda 20B engine for sale includes the components listed above.

Review every product image before purchasing. Confirm the engine code, vehicle fitment, wiring, ECU, cooling, fuel, exhaust, and drivetrain requirements with a qualified rotary specialist before installation. Rotary engines are sold as is.

Frequently Asked Questions (FAQ)

What vehicle does this JDM Mazda 20B-REW engine come from?

The 20B-REW was used in the Mazda Eunos Cosmo. This listing identifies the application as model years 1990–1995. Buyers should still confirm fitment and swap requirements before purchasing.

Is this a three-rotor rotary engine?

Yes. The Mazda 20B-REW is a 3-rotor rotary engine equipped here with a sequential twin-turbo system.

Does the engine include the transmission?

No. This listing is for the engine only, and the transmission is not included.

What parts are included with the engine?

The listing states that the engine includes the intake and exhaust manifolds, sequential twin turbos, power steering pump, A/C compressor, alternator, fuel rail, injectors, throttle body, ignition wires, pulleys, and oil pan.

Has this 20B rotary engine been tested?

The seller states that the engine was imported from Japan with good compression and lists it as compression-tested. Buyers should review the provided images and ask for any test documentation they need before purchase. This 20B rotary engine for sale is presented as a compression-tested JDM import.

How many miles are on this Mazda 20B engine?

The product page lists approximately 35,000–40,000 miles.

Can this engine be installed in an RX-7?

The engine originates from a Mazda Eunos Cosmo. Installing it in another chassis, including an RX-7, is a custom swap and may require changes to mounts, wiring, ECU, cooling, fuel, exhaust, and drivetrain components. Confirm the full setup with a qualified rotary specialist.

What should I verify before ordering?

Confirm the engine code, intended vehicle or swap application, included accessories, wiring and ECU needs, shipping requirements, installation plan, and the seller's current warranty terms. When comparing a 20B engine for sale, verify all installation and fitment requirements before ordering.
ADDITIONAL SERVICES:
Terms & Conditions:

SHIPPING: JDM West Coast offers specialized shipping with surcharges for services like liftgate delivery. They promise same-day shipping for orders before 1 PM PST, with next-day dispatch for later orders. Shipping is within the 48 contiguous states, with special arrangements for other US territories. Customers receive tracking numbers and are responsible for return shipping costs. Queries can be directed to their customer service. Shipping policy acceptance is required.

TERMS AND CONDITIONS: JDM West Coast's terms require users to comply with conditions when using their website and services. It includes accepting terms upon access, being of legal age, and the right to refuse service. Information may not always be accurate, and service and prices can change without notice. They offer online-exclusive products, reserve order refusal rights, and may use third-party tools and materials. Users' feedback may be used freely, and personal information is protected under their Privacy Policy.

View full details

  • 60 Day Warranty

    compression tested

Contact us

9716 Alburtis Ave, Santa Fe Springs, CA 90670

(562) 222-1000

sales@jdmwestcoast.com

  • LOW MILEAGE

    We hand-pick our JDM motors and transmissions with an average of 45,000-65,000 miles. Japan's strict emission laws make it costly to keep cars there, so many are sent to junkyards or auctioned off. We import them straight to our NJ warehouse.

  • AFFORDABLE PRICE

    We compare our prices to our competitors' to make sure you get the best value. We also consider any other costs when replacing an engine, like labor and parts, to make sure our prices are fair. Check out our products and see why ours are so cost-effective.

  • HUGE SELECTION

    Get your JDM motor with ease! Just make sure to research the vehicle carefully to ensure you get the right motor. When looking through our selection, take note of the year, make, model and displacement of your car. It's a match? Then we'll sell to you!

SHOP BY CATEGORY

Check out our quality selection of inventory

JDM West Coast

9716 Alburtis Ave,
Santa Fe Springs, CA 90670

(562) 222-1000
SHOP HOURS

Monday9AM - 5:30PM

Tuesday9AM - 5:30PM

Wednesday9AM - 5:30PM

Thusday9AM - 5:30PM

Friday9AM - 5:30PM

Saturday9AM - 3PM

SundayClosed