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Titan 858-603 Jam Nut

Titan 858-603 Jam Nut

Sourced From:
Titan Tools Inc.

The Titan 858-603 Jam Nut is a genuine OEM hex nut designed to deliver secure fastening and reliable performance for Titan sprayers.

Built from durable steel, it prevents loosening of key components like the piston or connecting rod during high-pressure operation, ensuring smooth pump performance and long-term stability.

With a precise 1/4-20 thread size, this jam nut fits multiple PowrLiner and ProMark models. Perfect for professionals maintaining their spray gun kit, it’s an essential part for consistent, efficient spraying. Order your Titan 858-603 Jam Nut today from AllTitanParts.com.

$2

Titan 858-603 Jam Nut – Precision Fastening for Titan Sprayers

The Titan 858-603 Jam Nut is a specialized OEM component designed to provide secure fastening and stability in Titan sprayers. Commonly used in the PowrTwin and PowrLiner series, this hex jam nut plays a critical role in locking key parts such as the piston rod or connecting rod in place. Its durable steel construction ensures a tight hold, preventing components from loosening during operation and helping maintain smooth, consistent pump performance.

Where It Fits and What It Does

Positioned within the pump or drive assembly of Titan airless sprayers, this jam nut secures threaded components that are constantly under vibration and pressure. By maintaining tight connections, it keeps your equipment aligned and running efficiently, reducing the risk of performance issues or downtime. If your sprayer shows signs of loose fittings or erratic spray pressure, replacing worn or stripped nuts with the Titan 858-603 Jam Nut restores reliability and precision.

  • Locks piston rod or connecting rod securely in place
  • Prevents loosening during vibration and high-pressure operation
  • Made from high-quality steel for maximum strength
  • Maintains proper alignment for consistent spraying performance

Compatible Titan Sprayers

The Titan 858-603 Jam Nut is compatible with multiple Titan and Speeflo models, including:

  • Titan PowrLiner 3500, 4950, 4955, 6900, 6900 XLT, 8900, 9900 XLT
  • Titan ProMark II Line Striper
  • Titan PowrLiner 1800M, 2800M, 2850, 3100, 4000, 4900, 4900 XLT, 5000, 6000, 800, 850, 550

This nut’s wide compatibility makes it a versatile and reliable solution for contractors who maintain several Titan sprayers in their fleet.

Product Details

  • Part Number: 858-603
  • Thread Size: 1/4-20
  • Type: Hex Jam Nut
  • Material: Steel
  • Weight: Approximately 0.01 lbs

Its compact yet durable design ensures strong resistance to wear and corrosion, delivering lasting performance even in demanding work environments.

Built for Durability and Precision

Engineered for long-term reliability, the Titan 858-603 Jam Nut maintains tight, vibration-proof fastening. Its hex shape allows easy tightening with standard tools, ensuring a perfect fit without damaging the surrounding assembly. Whether you’re maintaining large-scale line striping equipment or smaller commercial sprayers, this nut helps keep your machine stable, efficient, and safe.

Perfect Addition to Your Spray Gun Kit

For painters and contractors maintaining their spray gun kit or sprayer system, this jam nut is a small but essential component. Replacing worn hardware ensures consistent paint pressure, accurate flow, and prolonged sprayer life. A well-maintained sprayer means fewer interruptions and a flawless paint finish every time.

Why Buy from AllTitanParts?

At AllTitanParts.com, we specialize in providing genuine Titan replacement parts that meet strict OEM standards. From nuts and bolts to pumps, valves, and fittings, our inventory ensures you get exactly what your sprayer needs for reliable operation.

  • Authentic Titan OEM parts with guaranteed compatibility
  • Fast shipping and secure online ordering
  • Affordable prices for professionals and DIY users
  • Expert support to help identify the right part for your sprayer

Order Your Titan 858-603 Jam Nut Today

Don’t let loose fittings reduce your sprayer’s performance. Replace them with the reliable Titan 858-603 Jam Nut—the perfect OEM solution for strength, accuracy, and stability. Visit AllTitanParts.com today to order your replacement and explore our full catalog of Titan parts and accessories for your painting equipment.