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Start ShoppingProX 42.1312 Crank Seal Kit - Dual Oil Seal Kit for Engine Bottom End Sealing
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Description
Ensure optimal engine performance with ProX's application-specific crank seal kit. This dual oil seal solution protects critical crankshaft components from contamination and wear, delivering reliable sealing for high-performance engines.
Key Features
- Application-Specific Design: Precision-engineered for exact fitment on targeted engine models
- Dual Seal Configuration: Left and right crankshaft seals provide comprehensive oil retention
- High-Durability Materials: Resistant to heat, oil, and wear for long-lasting performance
- Easy Installation: Designed for straightforward replacement without major engine disassembly
Why Choose This Product
ProX's 42.1312 crank seal kit offers superior protection against oil leaks and contaminants, extending engine life and maintaining peak performance. The dual-seal design ensures complete coverage for both crankshaft ends, while the application-specific construction guarantees perfect compatibility. Ideal for riders demanding reliable sealing solutions without compromising engine efficiency or longevity.
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Ensure optimal engine performance with ProX's application-specific crank seal kit. This dual oil seal solution protects critical crankshaft components from contamination and wear, delivering reliable sealing for high-performance engines.
Key Features
- Application-Specific Design: Precision-engineered for exact fitment on targeted engine models
- Dual Seal Configuration: Left and right crankshaft seals provide comprehensive oil retention
- High-Durability Materials: Resistant to heat, oil, and wear for long-lasting performance
- Easy Installation: Designed for straightforward replacement without major engine disassembly
Why Choose This Product
ProX's 42.1312 crank seal kit offers superior protection against oil leaks and contaminants, extending engine life and maintaining peak performance. The dual-seal design ensures complete coverage for both crankshaft ends, while the application-specific construction guarantees perfect compatibility. Ideal for riders demanding reliable sealing solutions without compromising engine efficiency or longevity.| SKU | GM1A51B21D |
|---|---|
| MPN | 42.1312 |
| Brand | ProX |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Kawasaki | KLX110 | 2008-2014 |
| Kawasaki | KFX 90 | 2003-2009 |
| Suzuki | LT-R 400 | 2006-2013 |
| Yamaha | Raptor 250 | 2007-2012 |
| Yamaha | Raptor 660 | 2004-2007 |
| Yamaha | Raptor 700 | 2008-2013 |
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- Basic metric hand tools
- Flywheel puller or primary/clutch removal tools (depending on application)
- Seal puller or small pick
- Sockets and ratchet
- Soft‑face mallet
- Appropriately sized seal driver or large socket
- Torque wrench
- Brake cleaner or engine degreaser
- Shop towels
Pro Tips
- Lightly oil the inner sealing lip and crankshaft surface before sliding the seal on
- Use a thin film of non‑hardening sealant on the outside diameter of the seal only if the service manual recommends it
- Cover sharp crank keyways or splines with tape when sliding the seal over them to protect the lip
- Drive the seal in using a driver that contacts only the outer metal shell of the seal, never the rubber lip
- Always verify crank end play and check for crank bearing play before installing new seals—bad bearings will quickly ruin new seals
Common Mistakes to Avoid
- Driving the new seal in crooked and damaging the sealing lip
- Not cleaning the crankshaft and seal bore surfaces before installation
- Nicking or scratching the crankshaft where the seal rides
- Installing the seal in the wrong orientation (spring/lip facing the wrong direction)
- Reusing damaged gaskets or O‑rings in the same area causing additional leaks
- Failing to torque flywheel / clutch / primary fasteners to spec after reassembly
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