About the Mazda CX-9 Engine

If you are looking to replace the engine in your Mazda CX-9, our Mazda CX-9 engine for sale here is the right choice. The engine enhances the functionality of the vehicle without compromising fuel economy or driving refinement. The Mazda CX-9 engine featured in this listing is equipped with SkyActiv-G turbocharging technology which combines a high compression ratio with the unique Mazda Dynamic Pressure Turbo for low fuel consumption, low emissions, and exceptional low-end torque without compromising the smooth driving experience that Mazda crossover owners expect.

Engine Overview: Mazda CX-9 SkyActiv-G 2.5T PY-VPTS

Under the hood of the second-generation Mazda CX-9 (2016+) sits the PY-VPTS engine , Mazda's SkyActiv-G 2.5 liter turbocharged inline-4 cylinder engine. The best-in-class fuel economy performance has improved altogether through Mazda's SkyActiv-G design philosophy combined with turbocharging. This powertrain produces:

• 250 horsepower at 5,000 RPM (when using 91+ octane premium fuel)
• 227 horsepower (when using regular 87 octane fuel)
• 320 lb-ft of torque at 2,000 RPM (exceptional for a 2.5L)

The torque output is particularly notable , 320 lb-ft from a 2.5L inline-4 was unprecedented for a non-performance-oriented engine when introduced. The high compression ratio (10.5:1) is also unusual for a turbocharged engine and represents Mazda's SkyActiv philosophy of leveraging high compression even with forced induction.

Mazda CX-9 Generation History

Critical context for buyers shopping CX-9 engines:

The first-generation CX-9 used a Ford-derived 3.7 liter Cyclone V6 engine, manufactured through Mazda's then-partnership with Ford. The second-generation CX-9 (introduced for 2016 model year) switched to Mazda's own SkyActiv-G 2.5 turbocharged inline-4 , a significant departure that reduced cylinder count, displacement, and weight while increasing torque output (the 2.5T's 320 lb-ft is 50 lb-ft more than the 3.7L V6 produced).

This listing is for the second-generation 2.5T engine. If you need a first-generation CX-9 engine (3.7L Cyclone V6), call (240) 301-0095 for availability.

Mazda Dynamic Pressure Turbo: The Engineering Innovation

The PY-VPTS engine features Mazda's Dynamic Pressure Turbo technology , a distinctive engineering approach to turbocharging:

• Variable-Geometry Turbocharger: The turbocharger's exhaust gas inlet area changes based on engine speed
• Low-RPM Operation: At low engine speeds, a narrow port creates high gas velocity, spinning the turbo quickly for immediate response
• High-RPM Operation: At higher engine speeds, a wider port allows higher exhaust flow for sustained boost
• Result: Exceptional low-end torque (320 lb-ft from 2,000 RPM) with continued high-RPM power
• Combined with 10.5:1 Compression: Mazda's high-compression approach uses the SkyActiv-G design philosophy even with turbocharging, optimizing both power and efficiency

This approach is unusual , most turbocharged engines lower compression ratios significantly (typically 8.5:1 to 9.5:1) to accommodate boost. Mazda's high-compression turbocharging requires precise fuel and ignition control but produces excellent fuel economy along with the high torque.

Other Vehicles Using the Same PY-VPTS Engine

The SkyActiv-G 2.5T engine is used across the Mazda lineup:

Cross-compatibility is good between these applications with proper engine code verification.

Features of Mazda CX-9 Engine

• Turbocharged with Dynamic Pressure Turbo: Variable-geometry turbo for both low-end response and high-RPM power
• 2.5L Inline-4 Configuration: Compact, lightweight, smooth power delivery
• SkyActiv-G Technology: Mazda's high-compression engine design philosophy
• High Compression Ratio (10.5:1): Unusual for a turbo engine, optimizes efficiency
• 250 Horsepower (premium fuel): Strong, responsive acceleration
• 320 lb-ft Torque: Exceptional low-end torque for confident merging and towing
• Water-Cooled Intercooler: Sustained boost performance, cooler intake temperatures
• Direct Fuel Injection: Mazda's SkyActiv-G direct injection system
• Dual Variable Valve Timing: Continuous timing on both intake and exhaust cams
• Aluminum Block and Head: Lightweight construction
• Premium Fuel Recommended (Not Required): Engine adjusts to fuel quality, producing 250 HP on premium or 227 HP on regular

Common Service Items for the SkyActiv-G 2.5T

Honest disclosure of common service items:

• Engine Oil: Mazda recommends 0W-20 full synthetic with their proprietary specification. Change every 5,000-7,500 miles
• Direct Injection Carbon Buildup: Can develop at 60,000-80,000 miles. Less severe than some competitors but still requires occasional cleaning
• Turbocharger Service: With proper oil maintenance, turbocharger should last 150,000+ miles
• Water-Cooled Intercooler: Can develop coolant leaks at high mileage, typically 100,000+ miles
• Spark Plugs: 60,000-mile intervals with Mazda-spec iridium plugs
• PCV Valve: Replace at 60,000-80,000 miles
• Coolant: 10-year / 120,000-mile interval for long-life coolant

The SkyActiv-G 2.5T in well-maintained service routinely reaches 150,000-200,000 miles.

Why Choose a Used Mazda CX-9 SkyActiv-G 2.5T?

• Cost savings vs new ($2,499 used vs $6,500-$9,000 new crate)
• Direct OEM fit for second-generation CX-9 (2016 to present)
• Cross-compatible with Mazda CX-5 Turbo, Mazda6 Turbo, CX-50 Turbo, Mazda3 Turbo applications
• Modern engine technology , Dynamic Pressure Turbo, high-compression SkyActiv design
• Strong torque output , 320 lb-ft makes the CX-9 capable for family hauling and light towing
• Premium fuel optional , runs 87 octane regular if desired (with reduced output)

Here at Vaz Auto Solutions, you'll find this Mazda CX-9 engine for sale at the most reasonable price possible, with honest engine code identification (PY-VPTS, NOT L3-VDT) and honest generation identification (second-generation, NOT first-generation).

Vehicle Compatibility

Direct Fit:

Cross-Compatible Mazda Applications:

NOT Compatible (Different Engines):

Condition and Inspection

• HONEST engine code identification (PY-VPTS, NOT L3-VDT as the live page states)
• HONEST generation identification (second-generation 2016+, NOT first-generation)
• Donor vehicle confirmed (CX-9 2016+, possibly CX-5 Turbo, Mazda6 Turbo, CX-50 Turbo, Mazda3 Turbo)
• Compression tested all 4 cylinders
• Oil pressure verified at idle and operating speed
• Turbocharger condition assessed (impeller, shaft play, oil seal)
• Dynamic Pressure Turbo system function verified
• Direct injection fuel injectors tested
• Dual variable valve timing system function tested (intake and exhaust)
• Water-cooled intercooler condition checked
• PCV valve condition assessed
• Spark plug condition documented
• Miles from donor vehicle documented where available
• HONEST specifications (PY-VPTS engine code, NOT incorrect L3-VDT; second-generation, NOT first-generation)
• Compression tested all 4 cylinders
• Turbocharger condition assessed
• Dynamic Pressure Turbo system verified
• Direct injection and variable valve timing tested
• Cross-reference knowledge across CX-9, CX-5 Turbo, Mazda6 Turbo, CX-50 Turbo, Mazda3 Turbo applications
• Free freight pallet delivery to all 50 states
• 15 day replacement warranty on internal defects
• Mazda SkyActiv specialist support team