Adjusting Slack Adjuster KN44041 – Precision Manual Brake Adjustment for Heavy-Duty Vehicles

Premium Adjusting Slack Adjuster (KN44041/283411) – 37-teeth, 1/2″ bushing, 6″ arm. Forged steel construction. ISO/TS16949 certified. Global shipping.

Basic Info.

• Model NO. KN44041
• Type: Brake System
• Material: Forged steel
• Position: Front
• Certification: ISO/TS16949, ISO13485
• Classification: Drum
• Drum Brakes Classification: Brake Drum
• Main Market: South America, North America, Eastern Europe, Mild East, Southeast Asia, Africa, Western Europe, Eastern Asia, Northern Europe, Oceania, Southern Europe, Central America, South Asia, Domestic Market
• Quality: 100% Test
• OEM No. KN44041/283411
• Bushing: 1/2″
• MOQ: 50 PCS
• Color Available: Color Available
• Package: Neutral Packaging or Brand Box
• Teeth: 37
• Dimensions: A: 6″
• Usage: Manual
• Color: Golden & Black
• Transport Package: Carton Packaging
• Specification: 1 Holes 37 Teeth
• Origin: China
• HS Code: 87083099
• Production Capacity: 50000 pieces/Year

Technical specifications of Adjusting Slack Adjuster

Product Description of Adjusting Slack Adjuster

Brake Part-Truck & Trailer Manual Slack Adjuster with OEM Standard (KN44041/283411)

Original No. KN44041/283411

1. The manual slack adjuster is used for heavy duty truck and trailer.
2. The conventional color is zinc plated.
3. We can produce great many kinds of manual slack adjusters according to customer’s requirments.

Photos Show of Adjusting Slack Adjuster

This product is a premium Adjusting Slack Adjuster with OEM numbers KN44041 and 283411, designed for precision manual brake adjustment in heavy-duty commercial vehicles. Manufactured from high-strength forged steel, this adjusting slack adjuster ensures reliable braking performance through exact manual calibration of brake clearance between the brake shoe and drum. Certified to ISO/TS16949 and ISO13485 international standards, this component meets the most rigorous quality and safety requirements for commercial transportation applications.

The technical specifications of this adjusting slack adjuster feature a robust 37-tooth spline design with a 1-5/8″ diameter and a standardized 6.0″ arm length. Engineered with a 0.50″ pin size and 1/2″ bushing, this component is specifically designed for Propar applications and front-position drum brake systems. The durable zinc-plated finish in golden and black coloring provides excellent corrosion resistance while maintaining a professional appearance suitable for heavy-duty vehicle components.

With a minimum order quantity of 50 pieces, this adjusting slack adjuster is securely packaged in protective cartons, available in either neutral packaging or custom brand boxes according to customer requirements. Produced in China with an annual production capacity of 50,000 units, the product is available for global shipping to markets throughout North and South America, Europe, Asia, Africa, and Oceania, serving commercial vehicle operators and maintenance providers worldwide.

Each unit undergoes 100% quality testing to ensure optimal performance and durability under demanding operating conditions. The manufacturer maintains comprehensive production capabilities to create various types of adjusting slack adjuster components according to specific customer requirements and application needs. This essential brake maintenance tool provides reliable manual adjustment solutions for maintaining proper brake function and safety standards in heavy-duty commercial vehicles operating across international markets.

Except the above item, we can also provide following items:

CROSS REF.

E-9102                                KN55001
283411       E-1574            KN44041
278010       E-1063HD      KN47081
278321       E-940              KN47011
278302       E-4904            KN48031
278303       E-939              KN48001
286965                                KN44051
287899       E-2459HD      KN44061
278305       E-539              KN48002
288282       E-2458            KN44071
KN44042

Why Choose Our Adjusting Slack Adjuster (OEM: KN44041/283411)?

With years of specialized manufacturing expertise in heavy-duty brake systems, we deliver premium adjusting slack adjuster solutions that ensure precision and reliability for commercial vehicles. Our KN44041/283411 manual adjuster is engineered to meet the rigorous demands of transportation professionals worldwide. Here’s why our product stands out:

1. Premium Forged Steel Construction: Manufactured from high-grade forged steel, our adjusting slack adjuster offers exceptional durability and strength. This robust construction ensures reliable performance under extreme conditions, providing extended service life and excellent resistance to wear and impact.

2. Precision Engineering: Featuring a precise 37-teeth spline design with 1/2″ bushing and 6″ arm length, this manual adjuster guarantees accurate brake adjustment and perfect compatibility with Propar and other heavy-duty truck braking systems.

3. Quality Certified Excellence: Every adjusting slack adjuster undergoes 100% testing and is manufactured under ISO/TS 16949 certification, ensuring compliance with the highest international standards for automotive quality and safety performance.

4. Global Compatibility: Designed as exact replacements for OEM numbers KN44041 and 283411, our adjusters are trusted in markets across North America, South America, Europe, Asia, and beyond. They meet diverse regional requirements and vehicle specifications.

5. Proven Reliability: With a production capacity of 50,000 pieces annually and comprehensive quality control measures, we ensure consistent performance and durability in every unit we produce.

Professional Installation and Adjustment Guide

Safety First Protocol:

• Park on level ground and securely chock all wheels

• Engage parking brakes and completely depressurize air systems

• Wear appropriate personal protective equipment

• Allow brake system to cool before beginning work

Installation Procedure:

1. Component Preparation:

• Thoroughly clean brake camshaft splines

• Inspect for wear, damage, or corrosion

• Replace any compromised components before installation

2. Precise Installation:

• Carefully align the 37-teeth spline with camshaft

• Slide adjuster onto shaft until fully seated

• Tighten clamp bolt to manufacturer’s specified torque

3. Linkage Connection:

• Connect brake chamber pushrod using 1/2″ bushing

• Ensure proper alignment and smooth operation

• Secure with new cotter pins for safety

Adjustment Procedure:

1. Initial Inspection:

• Check current brake clearance

• Identify need for adjustment

• Prepare appropriate adjustment tools

2. Precise Adjustment:

• Turn adjustment mechanism clockwise to decrease clearance

• Make small, incremental adjustments

• Avoid over-tightening to prevent brake drag

3. Performance Verification:

• Check brake drum rotation freedom

• Verify proper clearance specifications

• Ensure complete brake release without dragging

Maintenance Best Practices:

• Regular inspection every 25,000 miles or 3 months

• Proper lubrication of moving components

• Periodic adjustment verification

• Immediate replacement of worn parts

• Maintain detailed service records

Performance Advantages:

• Consistent braking performance

• Reduced maintenance requirements

• Extended brake system life

• Enhanced vehicle safety

• Reliable operation in all conditions

Professional Recommendation: Always consult the vehicle manufacturer’s service manual for specific adjustment procedures and torque specifications. Proper maintenance of your adjusting slack adjuster is essential for optimal braking performance and overall vehicle safety.

FAQ

Q: Are you trading company or factory?
A: We are the manufacturer.

Q: What’s the MOQ for each item?
A: Usually the MOQ is 100pcs for each type. If color box is requested, the MOQ is 200pcs.

Q: What about the delivery time?
A: It’s about 1 to 5 days for the goods have in stock, 15 to 30 days for the goods need to be manufactured based on your order.

Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.

Q: What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.

Q: What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.

Q: Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Final Call to Action (CTA)

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This Slack Adjuster isn’t just a part—it’s a critical safety upgrade for any heavy-duty braking system. Get yours today!