Pencil Nozzle

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.

Pencil Nozzle 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.

Design & Specifications

1000 HP

1 HP

Horsepower Capacity

2,500

2 Bar Pressure

10,000 RPM

3 RPM

Engine Speed

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

Download Specifications

GM Honors Stanadyne as Supplier of the Year.