KAWASAKI 12005-0788 Exhaust Valve

( Manufacturer Part Number: 12005-0788 ), ( Type: Exhaust Valve )

Review KAWASAKI Oem Exhaust Valve New Nice fits NINJA ZX10R ZX10 2019–2024

The **Kawasaki Ninja ZX-10R (2019 2024) Exhaust Valve (Part #12005-0788)** is a precision-engineered component designed to deliver optimal performance and reliability for one of the most revered sportbikes in the world. As a critical part of the bike s high-revving, twin-crankshaft, liquid-cooled, four-cylinder engine, this valve plays a pivotal role in maintaining the ZX-10R s legendary breathing efficiency and power delivery. Crafted from high-grade materials, the exhaust valve is engineered to withstand the extreme heat and pressure generated by the bike s 1,053cc inline-four engine, which produces an impressive 170 horsepower and 82 lb-ft of torque in its most recent iterations. The valve s robust construction ensures durability across the bike s model years (2019 through 2024), accommodating the ZX-10R s aggressive riding style, whether on the track or in spirited highway cruising. Its precise fitment within the engine s complex valve train paired with the intake valve allows for seamless airflow, contributing to the bike s razor-sharp throttle response and top-tier acceleration. For riders seeking to maintain peak performance or those looking to restore their Ninja ZX-10R to factory specifications, this valve is an essential replacement part, ensuring the engine continues to operate with the precision and efficiency Kawasaki is renowned for. Whether addressing wear from high-mileage usage or addressing a failure in the valve s seat or stem, this component is a direct upgrade that upholds the integrity of the ZX-10R s legendary powerhouse.

### Pros and Cons of Buying a Kawasaki Ninja ZX-10R (2019 2024) with the Specified Exhaust Valve (4-0788)

The Ninja ZX-10R is one of the most powerful production sport bikes, producing around **223 230 horsepower** depending on the year. The 998cc inline-four engine delivers exceptional acceleration and top-end speed, making it one of the fastest production bikes available.

At around **470 480 lbs (213 217 kg)**, the ZX-10R is relatively light for its power, improving maneuverability and handling. The chassis is designed for high-speed stability while maintaining sharp cornering.

- **Kawasaki s Intelligent Power Distribution (IPD) system** optimizes throttle response for smooth power delivery.

- **Advanced suspension (Kawasaki s USD front fork and rear monoshock)** provides excellent tuning for both track and street use.

- **Digital instrumentation** with customizable displays and Kawasaki s **KTR (Kawasaki Traction Control)** system enhances control in various conditions.

- **Selectable riding modes** (Track, Rain, Street, etc.) allow riders to adjust power delivery and suspension damping.

- **Lightweight aluminum frame** for stiffness and agility.

- **High-revving engine** optimized for track use, though it remains street-legal.

- **Wide tire options** (e.g., Michelin Power 3 or Bridgestone BT017) for grip on both pavement and circuits.

- **Exhaust systems** (e.g., Akrapovic, MSS, or OEM-style upgrades).

- **Engine tuning** (e.g., Powermax, KTR, or custom ECU maps).

- **Suspension upgrades** (e.g., hlins, Showa, or WP forks).

- **Braking upgrades** (e.g., Brembo or EBC pads and rotors).

- **Bodywork modifications** (e.g., fairings, windscreen, or decals).

Kawasaki s inline-four engines are known for longevity, especially with proper maintenance. The ZX-10R s engine is robust, and with regular servicing, it can easily exceed **100,000 150,000 miles (160,000 240,000 km)**.

The Ninja ZX-10R retains its value well compared to many sport bikes, especially given its track heritage and performance reputation.

While primarily a track-focused bike, the ZX-10R is still comfortable for highway cruising. The ergonomics are adjustable, and the seat is reasonably padded for extended rides.

- **Seats and springs** for the exhaust valves.

- **O-rings and gaskets** to ensure a proper seal.

- **Replacement of worn components** that can lead to **exhaust leaks, misfires, or reduced performance**.

Upgrading these parts can restore or improve engine efficiency, especially if the bike has high mileage or has been modified.

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- **Purchase Price:** New models range from **$16,000 $18,000 **, and used models (especially low-mileage ones) can still be expensive.

- **Maintenance:** High-performance bikes require **premium fuel, frequent oil changes, and specialized servicing** (e.g., valve adjustments, suspension tuning).

- **Tires and Brakes:** High-performance tires (e.g., Michelin Power 3) and brake pads/rotors wear out quickly and are costly to replace.

The ZX-10R is **not fuel-efficient**, averaging around **20 25 mpg (9.4 11.8 L/100km)**. This adds to the long-term cost of ownership, especially for daily commuting or long trips.

While the suspension is excellent for track use, it can feel **stiff and uncomfortable on rough or uneven surfaces**. The bike is optimized for **high-speed stability** rather than comfort over bumps.

The ZX-10R s weight is **heavier at the rear** due to the engine placement, which can make it slightly less nimble at very low speeds or in tight urban traffic.

The high-revving engine and lack of full fairings mean the bike is **loud and windy at high speeds**. Riders may experience **hand and foot fatigue** on long rides due to vibration.

The engine and suspension require **regular tuning** (e.g., valve adjustments every **10,000 15,000 miles**). Neglecting maintenance can lead to **premature wear or failure**.

While the ZX-10R is **track-capable**, it is **not a full track bike** (e.g., lacks full fairings, windscreen, or some durability features). Riding it on the street at high speeds can be **less comfortable and more tiring** than a fully faired sport bike.

- **Exhaust leaks** (visible smoke or hissing).

- **Misfires or rough idle** due to improper sealing.

- **Reduced power output** if valves are not properly seated.

Upgrading these parts is **essential for maintaining performance**, but it adds to the cost.

- **Height:** The seat height ( 32.7 inches / 83 cm) may be **too tall for shorter riders**, requiring aftermarket seat risers.

- **Storage:** The bike has **minimal storage space**, making it impractical for long trips without additional bags.

- **Legal Restrictions:** Some regions have **speed limits or noise regulations** that may restrict the bike s full potential.

While the ZX-10R holds value well, it is still a **high-performance bike**, and depreciation over time can be significant compared to more practical motorcycles.

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The **Kawasaki Ninja ZX-10R (2019 2024)** is one of the most **powerful and capable sport bikes** available, offering **exceptional performance, track readiness, and aftermarket support**. It is ideal for **enthusiasts who prioritize speed, handling, and high-revving fun** over comfort or fuel efficiency.

However, it comes with **high costs (purchase, maintenance, and fuel)**, **limited practicality for daily use**, and **a focus on track performance** rather than all-around versatility. The **exhaust valve upgrade (4-0788 kit)** is a **wise investment** if the bike has significant mileage or shows signs of valve wear, as it ensures **optimal engine performance and longevity**.

- You are an **experienced rider** looking for a **high-performance, track-capable sport bike**.

- You have a **budget for maintenance, premium fuel, and potential upgrades**.

- You prioritize **speed, handling, and the thrill of high-revving power**.

- You plan to **use it primarily for track days, track days, or high-speed cruising** rather than daily commuting.

- You are willing to **invest in aftermarket parts** (tires, suspension, exhaust) to enhance performance and comfort.

- You need a **practical, fuel-efficient, or comfortable daily rider**.

- You are on a **tight budget** for both purchase and upkeep.

- You prefer **full fairings, wind protection, or a more relaxed riding position**.

- You are not comfortable with **high-maintenance requirements** or **high-speed riding risks**.

- For a **more practical sport bike**, look at the **Kawasaki Ninja 1000SX** (more comfortable, slightly less power).

- For a **track-focused bike with better fairings**, consider the **Ducati Panigale V4** or **BMW S 1000 RR**.

- For a **budget-friendly high-performance option**, the **Kawasaki Ninja 65

Details:

With the majority of parts coming off USED or CRASHED bikes, please review detailed photos closely. All of the tabs are intact. Nothing more and nothing less. This exhaust valve is NEW IN PACKING.

It was MEASURED and is 100% STRAIGHT. Make sure to like/follow and review us on Facebook, Enjoy the ride. PART #: 12005-0788 It has been inspected and is 100% STRAIGHT. None are missing, broken or cracked.

This should mount like it was designed without issue. Including any wear and cosmetic or mechanical damage. Please review ALL pictures above, NOT just the 4 highlight ones below!, This part was most likely removed from an entire motorcycle part-out. The photos and provide further detail of the item listed.

19 20 21 22 23 24 NINJA ZX10R ZX10 R OEM EXHAUST VALVE 12005-0788 NEW NICE, Removed From: 2019 Kawasaki Ninja with UNKNOWN miles, QUESTIONS.

part #: 120050788 prices

• $74.99-$118.96

specifications valvemotorcycleaz:

• for models: Zx10r, Zx10, Ninja
• for makes: Kawasaki
• for years: 2019-2024
• mpn: 12005-0788
• type: Exhaust Valve

general valvemotorcycleaz:

• Engines Engine Parts > Valvetrain Components > Engine Valves
• condition: Used

seller valvemotorcycleaz:

• rating: 100.0%
• city: Montoursville, Pennsylvania
• # reviews: 5495

returns valvemotorcycleaz:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

payments valvemotorcycleaz:

• credit card: Diners-club
• other
• wallet: Google-pay

shipping valvemotorcycleaz:

• cost: $0.00
• transit: 2-5 Days
• class: Expedited, Standard
• carrier: USPS
• type: Fixed
• service: USPS Priority Mail Padded Flat Rate Envelope, USPS Ground Advantage, USPS Priority Mail

offer valvemotorcycleaz:

• started: April 16, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

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