KAWASAKI 12005-0018 Exhaust Valve Spring Collet

( Manufacturer Part Number: 12005-0018 ), ( Type: Exhaust Valve )

Review KAWASAKI Exhaust Valve Spring Collet fits NINJA ZX10R 2006–2007

The **Kawasaki 12005-0018 Exhaust Valve Spring Collet** is a precision-engineered component designed specifically for the **2006 and 2007 Kawasaki ZX-10R Ninja**, ensuring optimal performance and reliability in one of the most revered sportbikes of its era. This high-quality collet is a critical part of the engine s valve train system, responsible for securely holding the exhaust valve stem in place while allowing smooth, controlled movement during operation. Crafted from durable, heat-resistant materials, it is engineered to withstand the extreme temperatures and mechanical stress encountered in high-performance racing and street riding, where valve train integrity is paramount. The collet s design features a tight, interference-fit mechanism that prevents valve float or premature wear, which can lead to catastrophic engine failure if left unaddressed. Whether replacing a worn-out original part or upgrading for enhanced durability, this collet is a direct-fit solution that maintains the ZX-10R s legendary responsiveness and power delivery. Ideal for both professional mechanics and DIY enthusiasts, it integrates seamlessly into the bike s valve cover assembly, ensuring a proper seal and minimizing the risk of oil leaks or valve damage. With its compatibility with the ZX-10R s 1,000cc inline-four engine, this component is essential for preserving the bike s performance-critical specifications, making it a must-have for owners seeking to maintain or restore their Ninja s peak condition.

### **Pros and Cons of Buying a Kawasaki 12005-0018 (2006-2007 ZX10R/Ninja Exhaust Valve Spring Collet)**

1. **Direct Fitment** This part is specifically designed for the 2006 and 2007 Kawasaki ZX10R/Ninja, ensuring compatibility without modifications.

2. **Performance Improvement** A worn or damaged valve spring collet can cause misfires, poor engine performance, or exhaust leaks. Replacing it restores proper valve operation, improving throttle response and power.

3. **Prevents Further Damage** Ignoring a failing collet can lead to more severe engine issues, such as bent valves or piston damage, which are far more expensive to repair.

4. **Easy Installation** The collet is a relatively straightforward component to replace, requiring only basic tools and mechanical knowledge.

5. **Cost-Effective** Compared to full engine rebuilds or valve repairs, this part is inexpensive, making it a practical solution for maintaining the bike s reliability.

6. **OEM Quality** Kawasaki parts are generally reliable, and using an original or high-quality aftermarket replacement ensures durability.

1. **Potential Counterfeit Parts** If purchasing from an untrusted seller, there is a risk of receiving a low-quality or fake part that may fail prematurely.

2. **Diagnostic Challenges** If the issue is not properly diagnosed (e.g., misidentifying the problem as a valve spring collet when it s actually a different component), the replacement may not solve the problem.

3. **Labor Time** While the part itself is simple, removing and reinstalling the cylinder head or exhaust valve assembly may require some disassembly, which can be time-consuming for inexperienced mechanics.

4. **Wear Indicators** If the collet is part of a larger set of valve springs or retainers, replacing just one may not be sufficient if others are worn. This could lead to recurring issues.

5. **Limited Availability** Depending on the source, finding an authentic or high-quality replacement may be difficult, especially if the bike is no longer in production.

---

The Kawasaki 12005-0018 exhaust valve spring collet is a **necessary and cost-effective repair** for addressing misfires, exhaust leaks, or poor engine performance in the 2006-2007 ZX10R/Ninja. The benefits of restoring proper valve function far outweigh the minor drawbacks, such as potential counterfeit risks or installation complexity. However, ensuring the part is genuine and diagnosing the issue correctly are critical steps to avoid wasted time or money.

- **Purchase from a trusted source**, such as an official Kawasaki dealer, a reputable aftermarket parts supplier, or a well-reviewed online retailer (e.g., RockAuto, Dynomax, or local bike shops with good reputations).

- **Verify the diagnosis** Confirm that the issue is indeed a faulty valve spring collet before purchasing. Symptoms like rough idling, exhaust hissing, or power loss at high RPMs are common indicators.

- **Consider a full valve service** If the bike has high mileage or other valve-related symptoms, replacing the entire valve spring set (collets, springs, retainers) may be more cost-effective in the long run.

- **Follow proper installation procedures** Ensure the collet is correctly seated and tightened to the manufacturer s specifications to avoid premature failure.

- **Maintain the bike afterward** Regular valve inspections and oil changes can extend the life of the engine and prevent similar issues in the future.

**Final Verdict:** This part is a **smart investment** for restoring engine reliability and preventing more costly damage. Just ensure authenticity and proper installation for the best results.

Details:

The photos are the. Free shipping only applies to the lower 48 states continental USA. Some parts may fit other model's /years check with a dealer or do your research before purchase.

Shipping Info. Unless stated, do not expect showroom condition. Lubing, cleaning, or replacing seals on used parts is always a good idea.

part #: 120050018 prices

• $114.94-$128.05

specifications valvemotorcycleaz:

• for models: Zx10r, Ninja
• for makes: Kawasaki
• for years: 2006-2007
• mpn: 12005-0018
• type: Exhaust Valve

general valvemotorcycleaz:

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

seller valvemotorcycleaz:

• rating: 99.4%
• city: Fitzgerald, Georgia
• # reviews: 1553

offer valvemotorcycleaz:

• availability: In Stock
• started: May 13, 2026
• sold: 0
• options: Ship-to-home
• quantity: 6

returns valvemotorcycleaz:

• policy: No Returns

shipping valvemotorcycleaz:

• cost: $0.00
• service: Standard
• type: Fixed
• class: Standard
• transit: 3-9 Days

payments valvemotorcycleaz:

• wallet: Paypal
• other
• credit card: Discover

Kawasaki 12005-0018 Is Similar To:

• 07-110x2 Shindy Kawasaki Valve Set Klr All Valves Made In Japan (27.3% similar) Japanese parts for your ATV complete set includes: intake and exhaust valves made in japan...(September 22nd, 2018)
• 0926-0073 Vesrah Intake Valve For Kawasaki Brute Force Prairie (26% similar) ...(September 7th, 2018)
• 0926-0088 Vesrah Exhaust Valve For Kawasaki Brute Force Prairie (39.4% similar) ...(October 4th, 2018)
• 1045136 Moose Racing Exhaust Kit Fits Kawasaki (27.8% similar) Moose exhaust valve spring kit fits kawasaki KX250F stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also ...(July 8th, 2018)
• 1045138 Moose Racing Exhaust Kit Fits Kawasaki (27.8% similar) Moose exhaust valve spring kit fits kawasaki KX450F stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also ...(April 16th, 2018)
• 1074801 Moose Racing Pro Valve Kit Titanium Fits Kawasaki (12.7% similar) ...(March 11th, 2018)
• 11002-0049 Kawasaki Cylinder Head Valves Valve Cover Intake Exhaust (29.4% similar) 95 kg in weight. The item is sold as. Please review the pictures to verify condition of part yourself. Once a part or parts have been used installed it becomes ineligible for return. What you see is get. Details: the cylinder head has no pitting, valves appear to seat properly, camshafts, see photos...(July 19th, 2018)
• 11008-0205 Kawasaki Ninja Cylinder Head Valves Intake Exhaust (33.8% similar) What you see and read is will receive. Please review the pictures to verify condition of part yourself. Details: the cylinder head has no pitting, valves appear to seat properly, see photos hardware pictured is included condition of and any seals unknown. The item is sold as. Once a part or parts ...(September 20th, 2018)
• 11009-1857 Kawasaki 2 Reed Valve (33.7% similar) ...(January 9th, 2018)
• 11065-0312 Kawasaki Ninja Cylinder Head Valve Covers (43% similar) Kawasaki ninja ZX-6RVALVE covers manufacturer: part: condition: used condition : this is a pair of valve in good. It is a little dirty from previous use and storage but looks good. Part was removed from 2009 ninja ZX-6R...(May 31st, 2018)
• 12001-010 Kawasaki Oem Rotary Valve (32.7% similar) Nos kawasaki oem part condition. New old stock fits. Please pack items as they were sent to you prevent damage. Many of these parts are in stock and ready to ship. Kawasaki oem rotary valve disc part number. Must be written on the outside of package to expedite return process. Buyer pays for return ...(June 8th, 2017)