PROFESSIONAL PARTS SWEDEN 21430756CK Engine Crankcase Vent Kit
fits model: 850. year: 1995–1997.
( Brand: Professional Parts Sweden ), ( Manufacturer Part Number: 21430756CK ), ( Part Type: Engine Vent )
Review PROFESSIONAL PARTS SWEDEN Engine Crankcase Vent Kit fits 850 1995–1997
The **21430756CK Engine Crankcase Vent Kit** is a precision-engineered aftermarket solution designed specifically for the **1995 1997 Honda CBR 950F**, addressing one of the most common yet critical maintenance concerns in modern sportbikes: effective crankcase ventilation. This kit replaces the stock crankcase breather system, which can become clogged with oil and carbon deposits over time, leading to increased crankcase pressure, reduced engine efficiency, and even premature wear on seals and gaskets. The **21430756CK** is crafted from high-quality materials, including a durable **polypropylene housing** and a **replacement breather filter**, ensuring optimal airflow while minimizing oil vapor emissions a key consideration for both performance and environmental compliance.
At its core, this vent kit features a **reverse-flow design**, which helps prevent oil from being drawn back into the crankcase, a common issue with traditional forward-flow systems. The kit includes a **new crankcase vent pipe** that integrates seamlessly with the bike s existing plumbing, along with a **replacement breather filter** that traps contaminants while allowing clean air to circulate. The filter is designed to be easily removable and replaceable, making maintenance straightforward and cost-effective over the long term. Additionally, the kit often comes with **O-rings and gaskets** to ensure a secure, leak-free installation, reducing the risk of oil leaks or vacuum loss that could compromise engine performance.
Beyond its functional benefits, the **21430756CK** is engineered with performance in mind. By maintaining proper crankcase pressure, it helps prevent oil starvation during hard acceleration or high-speed riding, which can occur when the stock system becomes restricted. This is particularly advantageous for riders who push their CBR 950F to its limits, as it supports smoother operation under stress while extending the life of critical components like the crankshaft seals and piston rings. The kit also contributes to a cleaner engine bay by reducing oil vapor buildup, which can otherwise lead to sludge formation and increased wear.
Installation of the **21430756CK** is relatively straightforward for those with basic mechanical experience, though it does require some disassembly of the engine s lower components. The kit typically includes clear instructions and may even come with a **new crankcase vent cover** to ensure a proper fit. Once installed, riders often notice an immediate improvement in engine responsiveness, reduced oil consumption, and a quieter operation, as the system effectively vents excess pressure without the rattling or hissing associated with a failing stock breather. For enthusiasts looking to maintain or restore their CBR 950F s reliability, this vent kit is an essential upgrade that bridges the gap between stock performance and optimized engine health.
The **21430756CK Engine Crankcase Vent Kit** is designed for the **1995 1997 Honda 850cc (CBF800/Interceptor)** to address crankcase ventilation issues, which can lead to oil leaks, pressure buildup, and potential damage to the PCV (Positive Crankcase Ventilation) system. Below are the key pros and cons of purchasing this kit, followed by a conclusion and recommendation.
### **Pros of the 21430756CK Crankcase Vent Kit**
1. **Reduces Oil Leaks and Blowby**
The stock PCV system on the 850 can become clogged or fail over time, leading to excessive crankcase pressure. This kit includes a **high-flow PCV valve and updated venting components**, which help regulate pressure more effectively, reducing oil leaks from gaskets, seals, and the PCV hose itself.
2. **Improves Engine Breathing**
A properly functioning crankcase vent system ensures that blowby gases (burnt oil and air) are efficiently routed back into the intake manifold rather than escaping through weak points. This can lead to **better engine efficiency and reduced carbon buildup** on intake valves.
3. **Prevents Long-Term Damage**
Chronic crankcase pressure issues can strain seals, gaskets, and even the **camshaft seals or timing chain tensioner**. By maintaining proper ventilation, this kit helps **extend the life of critical engine components**.
4. **Easy Installation**
The kit is designed to be a **direct replacement** for the stock components, requiring minimal modification. It includes the **PCV valve, vent hoses, and sometimes a new crankcase breather**, making the upgrade straightforward for most mechanics or DIY enthusiasts.
5. **OEM-Quality Replacement**
Honda s aftermarket parts are generally reliable, and this kit is **engineered to match the original specifications**, ensuring compatibility without sacrificing performance.
6. **Cost-Effective Maintenance**
Compared to the potential cost of **replacing a failed PCV system, oil leaks, or even a seized camshaft seal**, this kit is a **preventative measure** that can save money in the long run.
---
### **Cons of the 21430756CK Crankcase Vent Kit**
1. **Not a Cure for Major Engine Issues**
If the engine already has **severe oil leaks (e.g., from a cracked cylinder head gasket or failed valve seals)**, this kit alone **won t fix the root cause**. It will only mitigate symptoms by improving ventilation.
2. **Requires Periodic Maintenance**
Like the stock PCV system, the new valve can **clog over time** if the engine burns oil excessively or if the air filter is dirty. The valve may need **cleaning or replacement** every **20,000 30,000 miles**, depending on riding conditions.
3. **Minimal Performance Gain**
This is a **maintenance upgrade**, not a performance modification. While it helps keep the engine running cleaner, it **won t increase horsepower, torque, or throttle response**.
4. **Potential for Improper Installation**
If not installed correctly (e.g., incorrect routing of hoses or improper valve orientation), it **could worsen crankcase pressure** instead of improving it. Following the **installation manual carefully** is essential.
5. **Compatibility Concerns (If Modified)**
If the bike has **aftermarket modifications** (e.g., high-flow air filters, exhaust systems, or performance cams), the stock venting system may still struggle. In such cases, a **custom venting solution** (like a **high-flow PCV or separate crankcase breather**) might be needed.
6. **Cost Relative to DIY Parts**
While not expensive, the kit is **not the cheapest solution** if the PCV system is already failing. In some cases, **cleaning the old valve and replacing just the hoses** might suffice as a temporary fix.
---
### **Conclusion**
The **21430756CK Crankcase Vent Kit** is a **practical and cost-effective upgrade** for the **1995 1997 Honda 850** if you re experiencing **oil leaks, PCV hose clogging, or excessive crankcase pressure**. It provides **better long-term reliability** by reducing strain on seals and gaskets, preventing minor issues from becoming major repairs.
However, it is **not a universal fix** if the engine has **severe internal wear or leaks**, additional repairs will still be necessary. The kit is best suited for **preventative maintenance** rather than addressing advanced engine problems.
### **Recommendation**
- **Install the kit if:**- You notice **oil leaks from the PCV hose or gaskets**.
- The engine has **excessive crankcase pressure** (visible oil in the breather tube).
- You want to **prevent future PCV system failures** and extend engine life.
- You re performing a **routine maintenance overhaul** (e.g., valve adjustment, oil change).
- **Consider alternatives if:**- The engine has **visible oil leaks from the camshaft seals or cylinder head**.
- You ve already modified the bike with **high-performance parts** that may require a more aggressive venting solution.
- You re on a tight budget and the issue is **minor** (cleaning the old PCV valve and replacing hoses may suffice).
**Final Verdict:** For most **1995 1997 Honda 850 owners** dealing with **PCV-related issues**, this kit is a **smart, low-risk upgrade** that pays off in reliability. If installed correctly and maintained properly, it will **reduce headaches and potential costly repairs** down the road.
Details:
Original packaging. Vehicle Equipment: For vehicles with turbo. SPECIFICATIONS: Fuel Type: Petrol. Rubber Quality: EACM.
All accessories hardware. Updated 10.19.2023. Placing an order outside the US is easy.
Engine Crankcase Vent Kit.
part #: 21430756ck prices
- $101.37-$129.99
specifications emissyste:
- for models: 850
- for years: 1995-1997
- brand: Professional Parts Sweden
- mpn: 21430756ck
- part type: Engine Vent
seller emissyste:
- # reviews: 166597
- rating: 99.6%
- city: Miami, Florida
returns emissyste:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
offer emissyste:
- options: Ship-to-home
- started: May 1, 2026
- quantity: 10
- sold: 0
- availability: In Stock
general emissyste:
- Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
- condition: New
shipping emissyste:
- class: Standard
- type: Fixed
- transit: 4-7 Days
- cost: $0.00
- service: Standard
payments emissyste:
- other
- credit card: Mastercard
- wallet: Google-pay
Professional Parts Sweden 21430756CK Is Similar To:
- 21432211 Professional Parts Sweden New Engine Oil Separator 7340024675581 (56.4% similar) Vehicles sold outside of the USA may be different, even if they have same make and model name. Shipping labels may only be applied to a separate, outer box...(April 19th, 2018)
- 8670008 Professional Parts Sweden Breather Hose Oil Filter Housing 7340024682121 (48.7% similar) Shipping labels may only be applied to a separate, outer box...(June 9th, 2018)
- Fe16 Atp Professional Auto Parts Speed Sensor (44.6% similar) Currently the product line consists of automatic transmission filter kits repair exhaust manifold harmonic balances timing covers cables- flywheel and ring gears interior vent filters chemicals. At the time there were no aftermarket manufacturers providing these Parts. Our experience will show in ...(July 18th, 2018)
- Je52 Atp Professional Auto Parts Speed Sensor (44.6% similar) At the time there were no aftermarket manufacturers providing these Parts. Currently the product line consists of automatic transmission filter kits repair exhaust manifold harmonic balances timing covers cables- flywheel and ring gears interior vent filters chemicals. Our experience will show in ...(September 22nd, 2018)
- 31338024 Professional Parts Sweden New Oil Trap (48.8% similar) New condition...(January 18th, 2022)
- A3181c Acdelco Professional Gold Engine Air Filter (39.7% similar) Part NUMBER:A3181C. It enhances the performance and efficiency of the engine and extends its life. The engine air filter is equipped with a tight seal to keep unfiltered air from entering the combustion chamber. New condition...(February 8th, 2022)
- Professional Parts Sweden 21432211c Engine Crankcase Vent Kit (83.2% similar) Engine crankcase vent kit. All accessories hardware. Updated 10.19.2023. Rubber quality: ecm. Vehicle equipment: for vehicles with turbo. Original packaging. Specifications: fuel type: petrol. Placing an order outside the us is easy...(August 4th, 2025)
- Acdelco Professional Fb86 Engine Crankcase Breather Element (51.9% similar) This part fits vehicles made in the following years 1983 ,1984,1985,1986,1987...(September 3rd, 2025)
- Acdelco Professional A3184c Air Filter And Cabin Gm Original For Trax Buick Encore (36.7% similar) 1x AcDelco air filter...(February 23rd, 2026)
