Precision Manufactured for Performance & Reliability
Nothing Protects Like Original Equipment
Manufactured to exact OEM specifications, the Pencil Nozzle® plays a significant role in reducing exhaust emissions, while optimizing diesel engine performance. Protect your investment by specifying only Stanadyne original Pencil Nozzles®.
When look-alike products are substituted for our factory original Pencil Nozzle® , you not only sacrifice the quality, performance and warranty, but also the dependability and life of your diesel engine. Don’t take chances with expensive diesel equipment — use only Stanadyne’s original Pencil Nozzle®. Look for Stanadyne’s “S”, symbolizing precision and quality.

New, Genuine Parts
We only supply factory fresh new Pencil Nozzles® as replacement parts and back them with a 2-year warranty.

Precise Distribution
With Stanadyne Pencil Nozzles® you get precision spray holes for accurate size and target angles.

Many Benefits
By using injectors specifically designed for your engine, you get the best fuel economy and reduced emissions.
Unique Features
Easy Removal
The body of genuine Stanadyne Pencil Nozzles® are coated for easy removal.
Genuine Products
Look for Stanadyne’s “S”, symbolizing precision and quality.
Precision Drilled
Stanadyne nozzle tips are precision-drilled to exact specifications for precise fuel targeted and optimum fuel atomization.
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Features & Capabilities
- 9.5mm holder body diameter
- Nozzle shank diameters as small as 5.4 mm
- Rated for applications with peak injection pressures up to 1050 bar
- Opening pressures to 280 bar
- Low sac volume configurations
- Clamp-style mounting
- Leak-off and No Leak-off versions
- Orifice conditioning for atomization optimization and tighter flow band tolerancing
- Injection Rate Shaping (RSN) feature available
LOOK-ALIKE DEFECTS |
SAFETY/ENGINE DAMAGE ISSUES |
|---|---|
| Holes in molded plastic leak-off caps | Low-pressure fuel leakage causing odor and possible fire hazard |
| Poor high-pressure braze joints: incorrect braze material, weak & contaminated joints | Braze joint will fail resulting in high pressure fuel leakage on engine, creating fire hazard |
| None or inferior nozzle body coating | Nozzle sticks in cylinder head making it extremely difficult or impossible to remove |
| No “T” feature on valve tip | Increased exhaust smoke and emissions Decreased fuel economy |
| Off-target spray | Poor engine performance & increased emissions Possible engine damage – burned pistons and cylinder heads |
