Model 51418F: Straight Compression Fitting for 1/4" Outer Diameter Airline | 1/8" Female NPT

  • 1/8" F NPT straight compression fitting for 1/4" O.D. tube - Kleinn Automotive Accessories - KL 51418F

KL 51418F

$6.49
$6.49 $6.49

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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 51418F: 1/8" FEMALE NPT STRAIGHT COMPRESSION FITTING FOR 1/4" O.D. TUBE

PRECISION FEMALE ACCESSORY INTEGRATION ADAPTER

Bridge the gap between specialized interior cockpit accessories and your primary air lines with the premium Kleinn Model 51418F Straight Female Compression Fitting. Precision-engineered to adapt standard 1/4" Outside Diameter (O.D.) air tubing to a smaller 1/8" Male NPT connection, this high-performance adapter eliminates plumbing bottlenecks in custom dashboard clusters. It serves as an essential hardware link for feeding clean, high-pressure air signals directly into dashboard air gauges, miniature pressure switches, or electronic cockpit sensors.

COMPACT LEAK-PROOF MECHANICAL SEALING

The Model 51418F delivers a space-efficient straight inline profile that maximizes panel clearance behind crowded driver consoles, cabin interiors, or packed engine bays. Outfitted with precision-cut 1/8" Female NPT threads on one side, the opposite end features a heavy-duty mechanical compression nut and ferrule sleeve system that locks tightly onto your 1/4" O.D. plastic air line. This robust structural configuration creates an unyielding mechanical connection that actively resists loosening even when subjected to continuous vehicle vibration.

Why Choose the 51418F Female Compression Adapter?

  • Specialized Thread Transition: Threads directly onto male-threaded 1/8" NPT gauges, switches, and senders without needing stacked, bulky reduction hardware.
  • Airtight Compression Seal: Pre-matched nut and compression sleeve ferrule create a mechanical, high-pressure grip on 1/4" O.D. tubing without requiring specialized pipe-flaring tools.
  • Space-Efficient Design: Slim, ultra-compact inline footprint allows for clean, professional-looking plumbing layouts in tight dashboard clusters or cramped manifold configurations.
  • Industrial Strength Build: Precision-machined for superior structural durability, long-term corrosion resistance, and high-pressure fatigue life.

THE VERDICT: The definitive straight female adapter for accessory integration. The Model 51418F marries a reliable mechanical compression sleeve with a space-saving 1/8" Female NPT footprint to guarantee your cabin gauges, senders, and switches remain perfectly piped and completely leak-free.

What's Included in the Box

  • Compression Fitting: One (1) Model 51418F Straight 1/8" Female NPT to 1/4" O.D. Tube adapter body.
  • Locking Hardware: One (1) pre-matched compression nut and sleeve ferrule kit.

🔴 PRO TIP: Ensure a permanent, zero-leak lock on your accessory lines. Before snugging down the compression nut with your standard tools, use a sharp, dedicated pneumatic hose cutter to ensure your 1/4" O.D. high-pressure line is sliced completely square and smooth. Always add a few drops of liquid anaerobic compound like our genuine Kleinn JUICE to your mating Male NPT threads to completely insulate against slow, phantom pressure leaks.

PRODUCT SPECIFICATIONS

Feature Details
Part Number KL 51418F (51418F)
Fitting Type Straight Inline Mechanical Female Compression
Thread Connection Size 1/8" Female NPT (National Pipe Thread)
Compatible Tube Sizing 1/4" O.D. (Outer Diameter) High-Pressure Tubing
Installation Hardware Compression Ferrule Sleeve & Threaded Locking Nut 
Primary Utility Application Adapting 1/4" O.D. air lines to male-threaded 1/8" NPT 
Component Weight 0.05 lbs
Model 51418F: Straight Compression Fitting for 1/4" Outer Diameter Airline | 1/8" Female NPT

$6.49

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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