Slack Adjuster on Trucks 278734 – Reliable Manual Brake Adjustment for Commercial Vehicles

Premium Slack Adjuster on Trucks (OEM 278734) – 10-teeth, 16mm bushing, forged steel construction. ISO/TS16949 certified. Ideal for commercial truck brake systems.

Basic Info.

• Model NO. 278734
• 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.: 278734
• Bushing: 16
• MOQ: 50 PCS
• Color Available: Color Available
• Package: Neutral Packaging or Brand Box
• Teeth: 10
• Arm Length: 165
• Usage: Manual
• Color: Golden & Black
• Transport Package: Carton Packaging
• Specification: 1 Holes 10 Teeth
• Origin: China
• HS Code: 87083099
• Production Capacity: 50000 pieces/Year

Product Description of Slack Adjuster on Trucks

Brake Part-Truck & Trailer Manual Slack Adjuster with OEM Standard (278734)

Original No. 278734

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 Slack Adjuster on Trucks

This product is a premium Slack Adjuster on Trucks with OEM number 278734, designed as a reliable manual brake adjustment solution for commercial vehicles. Manufactured from high-strength forged steel, this slack adjuster on trucks ensures optimal braking performance by enabling precise manual adjustment of brake clearance. Certified to ISO/TS16949 and ISO13485 international standards, this component meets the most rigorous quality and safety requirements for heavy-duty transportation applications.

The technical specifications of this slack adjuster on trucks feature a 10-tooth spline design with a 16mm bushing and a standardized arm length of 165mm. Engineered for front-position drum brake systems, it features a durable zinc-plated finish with golden and black coloring that provides excellent corrosion resistance while maintaining professional appearance. The robust construction ensures reliable performance under demanding operating conditions, making it ideal for commercial truck brake systems.

With a minimum order quantity of 50 pieces, this slack adjuster on trucks is securely packaged in protective cartons, available in either neutral packaging or custom brand boxes. Produced in China with an annual production capacity of 50,000 units, the product serves global markets including North and South America, Europe, Asia, Africa, and Oceania. Each unit undergoes 100% quality testing to ensure durability and performance.

The manufacturer maintains comprehensive production capabilities to create various types of slack adjuster on trucks components according to specific customer requirements. This essential brake component provides reliable manual adjustment solutions for maintaining proper brake function and safety standards in 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 Slack Adjuster on Trucks (OEM: 278734)?

With years of specialized manufacturing expertise in heavy-duty brake components, we deliver premium slack adjuster on trucks solutions that ensure reliability and safety for commercial fleets. Our manual brake adjuster is engineered to withstand the most demanding transportation environments. Here’s why our product is the preferred choice:

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

2. Precision Engineering: Featuring a precise 10-teeth spline design with 16mm bushing and 165mm arm length, this manual adjuster guarantees accurate brake adjustment and perfect compatibility with various commercial truck braking systems, ensuring optimal performance and safety.

3. Quality Certified Excellence: Every slack adjuster on trucks 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 an exact replacement for OEM number 278734, our adjuster is trusted in markets across North America, South America, Europe, Asia, Africa, and beyond, meeting 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 that fleet managers can depend on.

Professional Installation and Maintenance 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

2. Precise Installation:

• Carefully align the 10-teeth spline with camshaft

• Slide adjuster onto shaft until fully seated

• Tighten clamp bolt to specified torque (consult manufacturer’s specifications)

3. Linkage Connection:

• Connect brake chamber pushrod to clevis

• Ensure proper alignment and smooth operation

• Secure with new cotter pins

Adjustment Procedure:

1. Initial Inspection:

• Check current brake clearance

• Identify need for adjustment

• Prepare appropriate tools

2. Precise Adjustment:

• Turn adjustment mechanism clockwise to decrease clearance

• Make incremental adjustments (typically ¼ turn increments)

• Avoid over-tightening

3. Performance Verification:

• Check brake drum rotation

• Verify proper clearance

• Ensure brakes release completely

Maintenance Best Practices:

• Regular inspection every 25,000 miles or 3 months

• Proper lubrication of moving parts

• Periodic adjustment verification

• Immediate replacement of worn components

• Detailed maintenance records

Performance Benefits:

• Consistent braking performance

• Reduced maintenance costs

• Extended brake life

• Enhanced safety

• Reliable operation in all conditions

Professional Recommendation: Always consult vehicle manufacturer’s specifications for proper adjustment procedures and torque values. Regular maintenance of your slack adjuster on trucks is essential for optimal braking performance and 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!