Heavy-duty 4340 ball joint replacement for Polaris RZR, designed for enhanced durability and off-road performance.

Polaris RZR Ball Joint Replacement 4340 Heavy Duty

Polaris RZR Ball Joint Replacement 4340 Heavy Duty
OEM quality ball joint designed for Polaris suspension
Crafted from 4130 chromoly steel for maximum durability
Zinc plated finish provides superior corrosion resistance
Dimensions: OD 17.95-33.8-38.5 mm, Height 69 mm

Product Details

Heavy Duty Polaris RZR Ball Joint Replacement

The Polaris RZR Ball Joint Replacement 4340 Heavy Duty is built to deliver OEM quality with enhanced durability for extreme off-road conditions. Made from premium 4130 chromoly steel, this RZR ball joint offers outstanding strength, while the zinc plated finish provides excellent corrosion resistance for longer service life.

Precision Fit and Enhanced Performance

With exact dimensions of OD 17.95-33.8-38.5 mm and height 69 mm, this replacement ball joint ensures precise installation on Polaris RZR suspension systems. The accurate fit improves steering response, restores suspension stability, and maintains safe handling across challenging terrains.

OEM Quality Manufacturing

SYZ Machine specializes in ATV/UTV off-road parts including control arms, rod ends, ball joints, bushings, and more. With in-house production, strict quality control, and extensive inventory, we provide reliable products at competitive prices. Our R&D department also supports customized development tailored to your project requirements.

Your Reliable Suspension Supplier

Backed by engineering expertise and OEM-level standards, SYZ Machine delivers Polaris RZR Ball Joint Replacements that guarantee strength, fit, and dependable performance for demanding riders and distributors.

Service Process

Step 1

Select Product

Step 2

Confirm MOQ

Step 3

Send Inquiry

Step 4

Send Your Drawing or Sample

Step 5

Start Customization

CNC Machining

Precision-machined components with tight tolerances, ideal for suspension and steering systems.

Full Series Products

From rod ends to sleeves, spacers, and studs—we cover all key components in your bump steer solution.

Highly Customized

Support for drawings, samples, special threads, and materials—engineered to fit your exact needs.

24hrs Support

Responsive sales & engineering team—your questions and requirements are our priority, anytime.

FAQ

⌄ What vehicle is this ball joint designed for?

Polaris RZR suspension systems.

⌄ What material is this made from?

Premium 4130 chromoly steel with a zinc-plated finish.

⌄ What are the dimensions of this ball joint?

Outer diameter 17.95-33.8-38.5mm, height 69mm.

⌄ Is this a heavy-duty upgrade?

Yes, it's built with enhanced durability for extreme off-road conditions.

⌄ Will this improve steering response?

Yes, the accurate fit improves steering response and restores suspension stability.

⌄ Is this suitable for demanding riders and distributors?

Yes, it's designed to guarantee strength, fit, and dependable performance for demanding riders and distributors.

What is your MOQ and lead time?

The MOQ is usually 50 pcs or a $500 minimum. Lead time is typically around 30–45 days. Regular parts are kept in stock at all times.

What types of products does SYZ Machine specialize in?

We focus on off-road parts, UTV/ATV parts, race car parts, motorcycle parts, carts/karts, and watercraft accessories, covering suspension, steering, drive, and vehicle body components.

How long has SYZ Machine been in the industry?

We were founded in 1999, with over 26 years of experience manufacturing high-quality vehicle parts and accessories.

Do you offer custom parts manufacturing?

Yes. We provide fully customized solutions for off-road and UTV/ATV parts, from design and sampling to full production.

What is your factory capacity?

Our 35,000 m² facility can produce more than 15,000 parts per day, ensuring stable supply for both small and large orders.

What Are Your Payment Terms?

We accept payment by wire transfer or PayPal. Common terms are 30% in advance and 70% upon delivery.

Special payment terms can be discussed as needed.

Which countries do you export to?

We have supplied vehicle accessories to clients in more than 20 countries, including the USA, Germany, Brazil, Canada, and Australia.

How do you ensure product quality?

We follow strict quality control at every stage, ensuring that our suspension, steering, and drive components meet global industry standards.

Can I request samples before placing a bulk order?

Yes. We provide sampling services so you can test and evaluate UTV/ATV parts or motorcycle parts before moving into mass production.

What are your typical lead times?

Lead times vary depending on the order size, but most off-road parts and accessories are ready within 30–45 days after confirmation.

Why Choose Us

26 Years Experience, 230,000 Sets Monthly Production Capacity

Are You Facing These Challenges?

What We Can Do!

[Competitive Pricing & Consistent Quality] No intermediaries—direct factory sourcing reduces your procurement costs. With a strict quality control system and efficient production, every batch meets stable and reliable standards.
[One-Stop Custom Manufacturing] From CNC-machined components to unique materials and thread types, we provide OEM-style customization with low MOQ, fast sampling, and consistent quality. Our engineering team is ready to support your special design needs.
[Reliable Delivery & Flexible Production] Automated production lines and flexible scheduling guarantee timely and accurate delivery, keeping your projects on track.
[Trusted by Global Industry Brands] For over 20 years, we’ve been the long-term manufacturing partner behind many performance and off-road brands—valued for our on-time delivery, deep industry experience, and consistent standards.
[End-to-End Professional Support] From inquiry to after-sales, our dedicated team ensures smooth, efficient communication and responsive service every step of the way.

About Us

SYZ Machine is a specialized manufacturer focusing on ATV/UTV, off-road, race car, motorcycle, golf cart, go kart, and watercraft components. Our product lines cover suspension, steering, drivetrain, and vehicle body parts, delivering solutions that combine competitive cost, high performance, and proven durability.

Our Manufacturer Advantage

20 Years+

Over 20 years of expertise in manufacturing precision CNC aluminum components.

OEM

Trusted OEM and aftermarket supplier serving global brands.

MOQ

Flexible Minimum Order Quantities (MOQ) and rapid prototyping capabilities.

One-Stop

Comprehensive services including design, machining, surface finishing, and assembly under one roof.

“SYZ Machine has been our trusted partner for years. Their off-road parts hold up to extreme conditions and always arrive on time. Quality and reliability are what keep us coming back.”

“We needed a consistent supplier for UTV/ATV parts, and SYZ Machine delivered. The sampling service helped us test new designs quickly, and the final products fit perfectly.”

“Their race car suspension parts are top-notch. We’ve noticed better performance and longer service life compared to other suppliers. SYZ Machine clearly understands motorsport demands.”

“We source motorcycle parts and vehicle accessories from SYZ Machine, and our customers love the durability. The team is responsive and professional, making international business smooth.”

“With over two decades of experience, SYZ Machine knows how to handle custom projects. From steering and drive components to large production runs, they’ve exceeded expectations every time.”