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Truck Compatibility

Fits the following trucks:

Freightliner Cascadia
Kenworth T680
Peterbilt 579
Volvo VNL
International LT

Please confirm part number before ordering.

  • Heavy Duty Truck Quality
  • Easy Returns
  • Fast Truck Delivery

177.9121C - Hex Plug 3/8NPT

177.9121C - Hex Plug 3/8NPT

$1.19
$1.19
Shipping calculated at checkout.

15 in stock

Expected delivery date:
01 Jul Usually ready in 2-3 days.
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Cross Reference

Name Part Number
HD Plus 177.9121C
Parker 9121C
Phillips Industries 9121C
Eaton 9121C-E
Sealco SC9121C
Tectran TT9121C
Velvac VL9121C
Midland MD9121C
Automann 1779121C
Fleet Engineers FE9121C
 

Specifications

Attribute Value
Product Type Threaded Hex Plug
Product Category Air Brake & Pneumatic Components
Plug Style Hex Head Pipe Plug
Thread Type Male NPT
Thread Size 3/8 Inch NPT
Material Solid Brass
Construction Precision Machined
Head Type Hex Head
Finish Corrosion Resistant Brass Finish
Seal Type Thread Seal Compatible
Operating Medium Air, Water & Non-Corrosive Fluids
Pressure Rating Heavy Duty Applications
Temperature Range Industrial Grade
Leak Resistant Yes
Corrosion Resistant Yes
Vibration Resistant Yes
Rust Resistant Yes
Installation Type Threaded
Application Air Brake, Pneumatic & Hydraulic Systems
Condition New
Unit of Sale Each
Weight (LB) 0.08 lb
 
177.9121C - Hex Plug 3/8NPT

177.9121C - Hex Plug 3/8NPT

$1.19
$1.19

FAQs

How do I find the right part for my truck?

You can search by part number, brand, or truck make/model/year. If you're unsure, our support team can help you identify the correct part based on your vehicle details.

Do you offer OEM and aftermarket options?

Yes. We sell both OEM (original equipment manufacturer) and high-quality aftermarket parts. Each product page clearly mentions the part type.

What shipping options do you provide?

We offer standard and expedited shipping across the United States. Shipping costs are calculated at checkout based on your location and the size/weight of the parts.

How long does delivery take?

Standard delivery usually takes 3–7 business days, while expedited shipping arrives faster depending on your location.

How can I reach customer support?

You can reach us by email, phone, or through the Contact Us page. Our support team is available during business hours to assist you.