Model 51238: Straight Compression Fitting for 1/2" Outer Diameter Tube | 3/8" Male NPT

KL 51238

$8.69
$8.69 $8.69

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PROP 65 WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

MODEL 51238: 3/8" MALE NPT STRAIGHT COMPRESSION FITTING FOR 1/2" O.D. TUBE

HIGH-FLOW INLINE TRANSITION FOR MAXIMUM AIRFLOW VELOCITY

Unleash the full, structural performance of your extreme-duty pneumatic network with the premium Kleinn Model 51238 Straight Compression Fitting. Specifically engineered to bypass standard plumbing restrictions, this heavy-duty hardware component bridges the gap between high-volume delivery loops and specialized solenoid boundaries. By adapting an oversized 1/2" Outside Diameter (O.D.) primary air run down to a standard 3/8" NPT port, it acts as a critical interface for maintaining an unhindered volume of airflow throughout your custom vehicle system layout.

THE ESSENTIAL DEMON™ 730 HORN INFRASTRUCTURE LINK

The Model 51238 is the specialized mechanical component required to plumb the flagship VX6003 Solenoid Valve included inside our legendary Demon™ 730 Train Horn Kits. Feeding this high-capacity valve using a restrictive lower-tier line starves your acoustic chambers of fluid transit. Threading this 3/8" Male NPT nipple straight into your horn solenoid allows you to deliver a massive, unhindered blast of air directly from your storage reservoir, allowing your air horns to achieve their full, earth-shaking volume potential.

Why Choose the 51238 High-Flow Compression Fitting?

  • Flagship Demon™ 730 System Match: Explicitly tailored to thread directly into the factory VX6003 solenoid block, enabling tool-free delivery loops straight from the air tank reservoir.
  • Maximum Volumetric Efficiency: Eliminates system backpressure bottlenecks by cleanly adapting a high-capacity 1/2" O.D. tube path straight into a 3/8" NPT fluid entry port.
  • Heavy-Duty Mechanical Ferrule: Pre-matched nut and compression sleeve ferrule lock down onto raw high-pressure plastic lines, forming an airtight barrier that won't release under continuous highway vibration.
  • Industrial Solid Brass Integrity: Precision-machined entirely from premium brass to handle heavy cyclic fatigue, high-temperature loops, and environmental under-chassis grime.

THE VERDICT: The definitive straight inline fitting for max-volume train horn architectures. The Model 51238 combines unyielding industrial brass integrity with an optimized high-flow path to guarantee your high-output train horns receive the rapid, explosive CFM they need to perform at peak capacity.

What's Included in the Box

  • Compression Fitting: One (1) Model 51238 Straight 3/8" Male NPT to 1/2" O.D. Tube adapter body.
  • Locking Hardware: One (1) pre-matched 1/2" compression nut and structural sleeve ferrule kit.

🔴 PRO TIP: Establish a flawless, zero-leak lock on your flagship horn setup. Before snugging down the compression nut with your standard shop tools, use a dedicated pneumatic hose cutter to slice your thick-walled 1/2" O.D. air line perfectly square and clean. Always apply a few drops of liquid thread sealant compound like our genuine Kleinn JUICE across the 3/8" Male NPT threads to seal out slow, phantom reservoir pressure drops.

PRODUCT SPECIFICATIONS

Feature Details
Part Number KL 51238 (51238)
Fitting Interface Type Straight Inline High-Flow Mechanical Compression Fitting
Thread Connection Sizing 3/8" Male NPT (National Pipe Thread)
Compatible Tube Sizing 1/2" O.D. (Outer Diameter) High-Pressure Tubing
Material Composition Precision-Machined Commercial Industrial Solid Brass Architecture
Core System Target Directly hooks 1/2" O.D. primary lines to the VX6003 Solenoid on Beast 230 and Demon™ 730 Horn Systems
Component Weight 0.15 lbs

 

Model 51238: Straight Compression Fitting for 1/2" Outer Diameter Tube | 3/8" Male NPT

$8.69

Does it come with a warranty?

Kleinn Automotive Accessories Limited Warranty

Kleinn Automotive Accessories stands behind the quality and craftsmanship of our products. Our products are covered against defects in materials and workmanship when properly installed and used under normal operating conditions, subject to the terms below.

One-Year Limited Warranty

Unless otherwise specified, Kleinn Automotive Accessories products are covered by a 1-year limited warranty from the original date of purchase.

This warranty applies to the original purchaser and covers defects in materials and workmanship under normal use.

If a product is determined to have a covered warranty defect, Kleinn Automotive Accessories will, at its discretion, repair or replace the defective product or component.

What Is Not Covered

This warranty does not cover damage or failure resulting from:

  • Improper installation
  • Misuse, abuse, or improper operation
  • Use outside the product's intended application or specifications
  • Modification or alteration of the product
  • Accidents or physical damage
  • Electrical damage
  • Environmental damage or exposure
  • Normal wear and tear

Kleinn Automotive Accessories is not responsible for installation or removal charges, diagnostic fees, labor costs, vehicle downtime, loss of use, or other incidental or consequential expenses associated with warranty service.

Warranty Claims

To request warranty service, email warranty@kleinn.com with the following information:

  • A copy of your original sales receipt or proof of purchase
  • Your full name
  • Email address
  • Telephone number
  • A brief description of the issue

A Kleinn representative will review your claim and may first attempt to resolve the issue through technical support.

If the product needs to be returned for inspection, Kleinn will provide a Return Authorization (RA) number and return instructions. Products should not be returned without prior authorization.

Once received, the product will be inspected to determine whether the issue is covered under warranty. If a covered defect in materials or workmanship is confirmed, Kleinn will, at its discretion, repair or replace the defective product or component.

If inspection determines that the product does not have a covered warranty defect, the product may be returned to the customer, and the customer will be responsible for applicable return shipping costs.

This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

Kleinn Automotive Accessories
4045 N. Highway Drive, Tucson, AZ 85705
Tel (520) 579-1531

What's the returns policy?

How To Return An Item

Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.

1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.

2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705

3. Include in your package a signed letter stating the reason for your return and the original receipt.

Return Non-Exceptions

Merchandise that has been worn, used, or altered will not be accepted for return or exchange.

Restocking Fee

All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.

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