125-8274 injector seal for CAT engines; ensures combustion seal and fuel efficiency.
Tailored for CAT diesel injector systems, including C7/C9 models.
Prevents combustion gas escape and fuel leakage under high pressure.
Manufactured from premium-grade NBR or optional FKM for fuel and heat resistance.
Provides reliable sealing in static and semi-dynamic injector environments.
Standard replacement for OEM and aftermarket engine rebuilds.
YNF16673 (CAT 125-8274) injector seal ring is a critical component in diesel fuel injection systems, ensuring pressure integrity and efficient combustion. This O-ring is used to seal the injector body in the cylinder head, preventing fuel blow-by and compression loss. It’s built from fuel-resistant, high-temp elastomers and maintains its form under high combustion heat. Designed to match CAT specifications, this injector seal is ideal for service technicians, engine rebuilders, and aftermarket parts resellers looking for consistent performance and global support. Choose YNF’s CAT injector O-ring solutions for dependable sealing and supply continuity.
| Parameter | Description |
|---|---|
| YNF No. | YNF16673 |
| Part No. | 125-8274 |
| Product Name | Seal Injector / Fuel Injector O-Ring |
| Compatible Engines | CAT C7, C9, 3126, 3406, 3306 (verify required) |
| Material | NBR / Optional: FKM (Viton) |
| Color | Black / Brown |
| Application Area | Fuel injector sealing (static) |
| Max Operating Temp | Up to 200°C (FKM) |
| Pressure Resistance | Up to 30 MPa |
| Standard | OEM Equivalent |
| Brand | YNF |
| Origin | China |
| MOQ | 100 Pieces |
| Shipping | Express / Air / Sea |
| Payment Options | TT, PayPal, Western Union |
| Application Industry | Use Case |
|---|---|
| Diesel Engine Maintenance | Fuel injector O-ring replacement during servicing |
| Fleet Equipment Overhaul | Restore compression in CAT-powered equipment |
| Engine Rebuild Workshops | Component of standard rebuild kits |
| OEM Assembly & Retrofitting | Injector sealing for CAT engine installation |
| Aftermarket Distribution | Popular stock item for CAT parts dealers |
Related Products
9L-8752 Injector Seal
7N-9607 Fuel Injector Ring
CAT C7/C9 Injector Gasket Kit
FAQs
Q: What models does 125-8274 fit?
A: It fits a variety of CAT engines. Please send your model number for compatibility confirmation.
Q: Can I order in bulk for resale?
A: Yes. We support bulk purchasing with factory pricing and professional B2B packaging.
Q: Is this an OEM part?
A: It is an aftermarket replacement manufactured to match OEM specifications.
Seal combustion pressure and protect your injector system with the 125-8274 injector O-ring from YNF Machinery. Engineered to meet CAT performance standards, this seal offers outstanding durability, easy installation, and competitive pricing. Contact us now to request bulk pricing and shipping options tailored to your market.
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