2017 Porsche 718 Engine Parts: A Complete Guide

The 2017 Porsche 718 Boxster and Cayman introduced a new era for Porsche’s mid-engine sports car lineup, swapping the naturally aspirated flat-six for a turbocharged flat-four. This engine, available in 2.0-liter and 2.5-liter variants, delivers impressive power and efficiency, but it also comes with its own set of maintenance and upgrade considerations. Whether you’re restoring a high-mileage 718, planning performance modifications, or simply keeping up with routine service, understanding the key engine parts is essential. This guide covers the most common engine components, replacement parts, performance upgrades, and practical buying advice for the 2017 Porsche 718.

Overview of the 2017 Porsche 718 Engine

The 2017 718 uses the MA2-series turbocharged flat-four engine. The base model gets a 2.0-liter producing 300 hp, while the S models get a 2.5-liter with 350 hp. Both engines feature direct fuel injection, a single twin-scroll turbocharger (variable turbine geometry on the 2.5L), and an integrated air-to-water intercooler. Key components include:

• Engine block: Aluminum alloy with cast-iron cylinder liners (2.0L) or aluminum cylinders with a metal spray coating (2.5L).
• Cylinder heads: Four-valve per cylinder with dual overhead camshafts and variable valve timing.
• Turbocharger: BorgWarner unit for 2.0L; Mitsubishi unit with VTG for 2.5L.
• Fuel system: High-pressure direct injection with a mechanical fuel pump.
• Oil system: Dry-sump lubrication with an external oil tank.

Key Engine Components

Understanding the major assemblies helps when sourcing parts. The engine is divided into the long block (block, heads, crank, pistons), the turbo system, the intake and exhaust, and the ancillary systems (cooling, fuel, oil). Many aftermarket and OEM parts are available for each area.

Common Replacement Parts for the 2017 Porsche 718

Routine maintenance on the 718 is similar to other turbocharged Porsches, but some parts require specific attention. Here are the most frequently replaced engine parts:

Oil System Parts

The 718 uses a dry-sump system with a separate oil tank. Recommended oil is 0W-40 or 5W-40 meeting Porsche A40 specification. Common replacement items include:

• Oil filter: OEM part number 94810721501 (also for some Cayenne and Panamera models). Many aftermarket options like Mahle or Mann are acceptable.
• Oil filler cap gasket: Prone to hardening over time. Part number 94810722300.
• Oil pressure sensor: Common failure on high-mileage cars; part 94860616100.
• Oil cooler seals: The oil-to-water cooler can leak; seal kit 9A111301900.

Cooling System Parts

The turbocharged engine runs hot, so cooling system maintenance is critical. Key parts:

• Coolant reservoir: Known to crack; part 9A111303500.
• Water pump: Belt-driven, common to fail around 50,000–70,000 miles. OEM is Pierburg; part 9A11212011000.
• Thermostat: Often replaced with water pump; part 9A11211515000.
• Radiator hoses: Upper and lower hoses may soften; silicone aftermarket versions are available.

Spark Plugs and Ignition Coils

Porsche recommends new spark plugs every 30,000 miles for the 718. Use only OEM copper-core plugs (part 9A190560000) or NGK equivalent. Ignition coils are durable but can fail under high heat; OEM part 9A190625000. Aftermarket coils from Bosch or Beru work well.

Turbocharger Parts

On higher-mileage 718s, the turbocharger may need attention. The 2.0L unit is a BorgWarner K03; the 2.5L uses a Mitsubishi with VTG. Common failures include wastegate actuator rattle (part for 2.5L: 9A214533500) and oil feed line leaks. Rebuild kits are available, but most owners replace the entire turbo unit (OEM rebuilt or new).

Timing Chain and Tensioners

The chain is designed to last the engine’s life, but tensioner guides can wear. Symptoms include rattling on startup. Replacement chain kit includes rails, tensioners, and guides; part number varies by engine (check with dealer).

Performance Parts and Upgrades for the 718 Engine

Many owners look to upgrade their 718 engine for more power or better throttle response. The turbocharged flat-four responds well to bolt-ons and calibration changes. Focus on reliability and heat management.

Bolt-On Performance Upgrades

• Cold air intake: Aftermarket intakes from AFE, BMC, or Eventuri increase airflow and add induction noise. Ensure the heat shield is effective to prevent heat soak.
• High-flow downpipe: Replaces the restrictive catalytic converter. Common brands: AWE, Cobb, Milltek. Pair with a tune to avoid check engine lights.
• Intercooler: Upgraded bar-and-plate intercoolers from AMS or CSF reduce intake air temperatures, especially important for repeated hard driving.
• Exhaust system: Cat-back exhausts from Akrapovic, Capristo, or Soul Performance reduce weight and improve sound.
• Turbo inlet pipe: A larger diameter pipe from the air filter to the turbo reduces restriction; part from Evolution Racewerks.

Tuning and Software

ECU tuning is the most effective way to increase power. The 2.0L can reach 350 hp with a stage 1 tune (e.g., Cobb Accessport with a pro tune or off-the-shelf maps). The 2.5L can hit 400+ hp. Use reputable tuners like Cobb, APR, or Softronic. Always monitor engine parameters (boost, exhaust gas temps) and consider a catch can to reduce oil in the intake.

Fuel System Upgrades

For higher boost levels, the stock fuel pump and injectors may be adequate up to about 450 hp. If going beyond, consider larger injectors (Bosch 550cc) and a higher-flow fuel pump.

Where to Buy Genuine and Aftermarket Parts

For routine maintenance, OEM parts from a Porsche dealer or online retailer like Suncoast Porsche, Pelican Parts, or FCP Euro are reliable. FCP Euro offers a lifetime warranty on many parts. For performance parts, turn to specialized shops like BBi Autosport, AWE Tuning, or Moditech. Avoid counterfeit parts; insist on genuine packaging and check part numbers.

Maintenance Schedule and Part Lifespan

• Oil change: Every 5,000–10,000 miles or annually (use high-quality synthetic).
• Spark plugs: 30,000 miles.
• Air filter: Every 20,000 miles.
• Water pump and thermostat: Replace as preventive maintenance at 60,000 miles.
• Serpentine belt: Inspect at 30,000; replace at 60,000.
• Coolant flush: Every 5 years or 100,000 miles.

Final Recommendation

For a 2017 Porsche 718, focus on high-quality OEM or OEM-branded parts for maintenance to ensure reliability. If you plan to upgrade, start with a proper tune and intercooler—these give the best gains while keeping the engine safe. Always use a reputable tuner and monitor critical data. Avoid cheap aftermarket parts that can cause drivability issues or engine damage. Whether you’re refreshing a daily driver or building a track toy, the 718’s engine is robust and rewarding to maintain.