New 2B0858 Plug-Pipe Replacement suitable for Caterpillar Equipment
- New Plug-Pipe Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 2B0858 Plug-pipe
▶Specification for 2B0858 Plug-pipe
▶Exact Fit Guarantee for 2B0858 Plug-pipe
▶| Dimensions | 0.59x0.79x0.79 |
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Great customer service
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Frequently Asked Questions
What is the 2B0858 Plug Pipe used for on Caterpillar equipment?
The 2B0858 Plug Pipe is a sealing plug used to cap off pipe ports or fluid passages in Caterpillar equipment. It prevents fluid leaks and keeps contaminants from entering open ports during service procedures or when a port is not in use. These plugs are commonly found in engine, hydraulic, and air system components.
What material is the 2B0858 Plug Pipe made from?
- Pipe plugs for Caterpillar equipment are typically made from steel or iron to withstand high-pressure environments and resist corrosion over time.
- The 2B0858 from Propel Parts is a high-quality aftermarket plug manufactured to meet OEM specifications for material grade and thread standards.
How do I know what thread type and size the 2B0858 uses?
Thread specifications (NPT, BSPT, metric, etc.) and size details are listed on the Propel Parts product page. Always match the thread type and size to the port you are plugging. If you are unsure, reach out to Propel Parts for help verifying fitment.
Should I use thread sealant when installing the 2B0858 Plug Pipe?
For tapered pipe threads (NPT/BSPT), thread sealant such as PTFE tape or liquid thread sealant is typically recommended to ensure a leak-free seal. For straight-thread ports with an O-ring face seal, no sealant is needed. Always follow the procedure specified in your Caterpillar service manual.
What torque do I apply to a pipe plug?
Over-torquing a pipe plug can crack the port boss or strip threads; under-torquing can cause leaks. Your Caterpillar service manual will provide the appropriate torque specification. As a rule, tapered pipe plugs are typically installed snug plus a defined number of additional turns, as specified by the manual.
Can I reuse a pipe plug after removal?
If the plug threads and seating surfaces are undamaged and no deformation has occurred, reuse is generally acceptable for non-critical applications. However, in high-pressure or high-temperature circuits, replacing the plug with a new one is the safer option to ensure a reliable seal.
Does Propel Parts carry other sealing plugs and fittings?
Yes. In addition to the 2B0858, Propel Parts stocks a variety of fluid and air system sealing components. For example, the 9S8005 Plug O-Ring for Caterpillar Equipment is a related sealing plug that uses an O-ring face seal design — a great option when working on ports that require that sealing method.

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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