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Start ShoppingProX 42.4300 Crank Seal Kit - Durable Gaskets/Seals for Reliable Engine Performance
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Description
Ensure optimal engine performance and prevent costly leaks with the ProX 42.4300 Crank Seal Kit. Designed for powersports engines, this premium gasket/seal solution delivers unmatched durability and precision fitment to keep your vehicle running smoothly.
Key Features
- High-Durability Materials: Engineered with reinforced rubber compounds to withstand extreme temperatures and high RPMs.
- Perfect Fitment: Precision-molded for seamless installation and optimal sealing in crankshaft applications.
- Leak-Proof Seal: Advanced design prevents oil seepage and maintains engine efficiency under demanding conditions.
- Easy Installation: Simplified replacement process saves time and reduces labor costs for mechanics and DIY enthusiasts.
Why Choose This Product
Upgrade your powersports engine's reliability with ProX's trusted crank seal solution. This kit eliminates the risk of catastrophic engine failure by maintaining proper sealing and lubrication. Its long-lasting performance reduces maintenance frequency, while the precise engineering ensures compatibility with a wide range of engines. Whether you're riding off-road or on the track, this seal kit keeps your machine performing at peak levels.
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Ensure optimal engine performance and prevent costly leaks with the ProX 42.4300 Crank Seal Kit. Designed for powersports engines, this premium gasket/seal solution delivers unmatched durability and precision fitment to keep your vehicle running smoothly.
Key Features
- High-Durability Materials: Engineered with reinforced rubber compounds to withstand extreme temperatures and high RPMs.
- Perfect Fitment: Precision-molded for seamless installation and optimal sealing in crankshaft applications.
- Leak-Proof Seal: Advanced design prevents oil seepage and maintains engine efficiency under demanding conditions.
- Easy Installation: Simplified replacement process saves time and reduces labor costs for mechanics and DIY enthusiasts.
Why Choose This Product
Upgrade your powersports engine's reliability with ProX's trusted crank seal solution. This kit eliminates the risk of catastrophic engine failure by maintaining proper sealing and lubrication. Its long-lasting performance reduces maintenance frequency, while the precise engineering ensures compatibility with a wide range of engines. Whether you're riding off-road or on the track, this seal kit keeps your machine performing at peak levels.
| SKU | GMC9625139 |
|---|---|
| MPN | 42.4300 |
| Brand | ProX |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KX450F | 2004-2009 |
| Kawasaki | KX250F | 2006-2015 |
| Kawasaki | KX450F | 2008-2012 |
| Kawasaki | KX250F | 2009-2019 |
| Kawasaki | KX450F | 2012-2016 |
| Kawasaki | KX450 | 2019-2024 |
| Kawasaki | KX250 | 2020-2024 |
| Kawasaki | KX450 | 2020-2024 |
Frequently Asked Questions
Primarily Kawasaki KX250F and KX450F models from 2004-2024. Check full fitment list for your year.
Yes, includes seals for crankshaft, countershaft, water pump, and shift shaft.
ProX uses premium materials for better heat and wear resistance, often lasting longer than stock.
No, these are dry seals. Use engine oil on lips only.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- socket set
- torque wrench
- seal puller or screwdriver
- rubber mallet
- case splitter if needed
Pro Tips
- Use seal protectors or plastic sleeves to prevent damage
- Apply light oil to seal lips before install
- Torque to spec and check crankcase halves for wear
Common Mistakes to Avoid
- Damaging new seals during installation
- Incorrect orientation of seals
- Not cleaning mating surfaces thoroughly
Comparison vs Stock/OEM
Direct OEM replacement with upgraded rubber compound
Improvements
- Higher heat resistance
- Better sealing under high RPM
- Lower cost than dealer OEM
Considerations
- Identical fit, no performance modifications needed
Durability & Warranty
Expected Lifespan
Matches or exceeds OEM (20,000+ miles or 100+ hours motocross)
Warranty
1 year limited manufacturer warranty
Maintenance
Inspect during top-end rebuilds or if oil leaks appear
What Others Are Saying
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