Inconsistent Hardness Between Batches
Weak heat treatment specs mean ball stud hardness varies run-to-run. Your QA team catches it — or your customers do, in the field. Neither is acceptable.
Forged 4130, 4340, 300M & TitanX ball joints for Polaris, Can-Am, Yamaha and Kawasaki. Factory-direct supply with full private label and custom development — no trading company markup.


Factory ATV/UTV ball joints are engineered for standard conditions — not for the loads, upgrades, and environment your customers demand.
Weak heat treatment specs mean ball stud hardness varies run-to-run. Your QA team catches it — or your customers do, in the field. Neither is acceptable.
Most budget suppliers use cast housings. Casting voids and weak grain structure fail under repeated spike loads — a drop, a rock strike, a hard landing. Drop-forged is not optional.
Stock OEM-equivalent only works for stock vehicles. Lift kits, oversized tires, and heavy-use operators need a stronger stud — but most suppliers only offer one grade.
Every SYZ Machine ball joint starts with a drop-forged housing — not cast. Material grade is selected based on load requirements. The result is consistent, measurable, documentable performance across every batch.








All grades use the same forged housing architecture. The performance difference comes from the ball stud material, heat treatment, and internal design specification. Available as OEM replacement, heavy-duty upgrade, long-travel/off-road applications, or custom suspension programs.


Features
Best For
Engineering note: 4130 provides a good balance between strength, toughness, machinability, and cost. Suitable for standard-duty suspension systems where extreme shock loading is not expected.


Features
Best For
Engineering note: 4340 offers significantly higher core toughness and fatigue resistance compared with 4130. Commonly used in high-load drivetrain and suspension components subjected to cyclic stress.


Features
Best For
Engineering note: 300M is an advanced modified 4340 alloy with added silicon and tighter material control. Widely used in aerospace landing gear and professional motorsport components where maximum strength-to-weight performance is required.


Features
Best For
Engineering note: Unlike traditional one-piece ball stud designs, the TitanX system uses a modular construction optimized for serviceability, articulation range, and application-specific tuning. Ideal for advanced suspension systems requiring rebuild capability and custom geometry solutions.
All SKUs available in standard 4130, heavy duty 4340, or 300M ball stud upgrade. Private label and custom packaging available. MOQ 100 pcs per model.
Standard parameters for our ATV / UTV ball joint range. Custom specifications available on request.
| Parameter | Specification |
|---|---|
| Product | ATV / UTV Ball Joint (OEM Replacement & Custom) |
| Housing Material | 4130 / 4340 Drop-Forged Steel (never cast) |
| Ball Stud Grade | 4130 / 4340 / 300M — specify at quote |
| Surface Treatment | Black Oxide / Zinc Plated |
| Design | Greaseable (Zerk fitting included) |
| Thread Size | M10–M20 · 3/8″–3/4″ (custom available) |
| Compatible Brands | Polaris, Can-Am, Yamaha, Kawasaki + Custom Platforms |
| OEM References | 50+ stocked; 24hr cross-reference confirmation |
| Private Label | Custom logo, retail, Amazon-ready packaging |
| Certifications | ISO 9001:2015 · SGS-Assessed Production · RoHS |
Covering the highest-volume North American ATV and UTV platforms. Don’t see your model? Send us the OEM number — fitment confirmed within 24 hours.
North America’s highest-volume ATV / UTV ball joint OEM references
7081867 / 7082275 / 7081992
7061220 / 7061187
7061141 / 7061156
7061192 / 7061244
S50210RCA000
North America estimated sales volume ranking
| # | OEM Ref | Model |
|---|---|---|
| 1 | 7081867 | RZR XP1000 / Turbo |
| 2 | 7082275 | RZR XP1000 Upper |
| 3 | 7081992 | RZR XP / Turbo Lower |
| 4 | 7082422 | RZR Pro XP / General |
| 5 | 7082487 | Ranger 1000 |
| 6 | 7061220 | Ranger / Sportsman |
| 7 | 7061187 | Sportsman / Ranger |
| 8 | 7061156 | Sportsman ATV |
| 9 | 7061141 | Sportsman |
| 10 | 7061192 | Sportsman |
OEM cross-reference
| Our Ref | Can-Am OEM |
|---|---|
| 7061031 | S50210RCA000 |
| 7061032 | S50213RCA000 |
| 7061033 | S50230RCA000 |
| 7061034 | S50240RCA000 |
| 7061035 | S50250RCA000 |
| 7061036 | S50260RCA000 |
| 7061037 | S50270RCA000 |
| 7061038 | S50280RCA000 |
| 7061039 | S50290RCA000 |
| 7061050 | S50400RCA000 |
OEM cross-reference
| Our Ref | Yamaha OEM |
|---|---|
| 7061031 | S50210RCA000 |
| 7061032 | S50213RCA000 |
| 7061033 | S50230RCA000 |
| 7061034 | S50240RCA000 |
| 7061035 | S50250RCA000 |
| 7061036 | S50260RCA000 |
| 7061037 | S50270RCA000 |
| 7061038 | S50280RCA000 |
| 7061039 | S50290RCA000 |
| 7061050 | S50400RCA000 |
We own the forging, machining, heat treatment, surface treatment, and assembly lines. No subcontracting. No quality surprises. That means we control lead time, material traceability, and cost at every step — and you can hold us accountable for all of it.
















Every SYZ Machine ball joint follows a controlled 7-step production process with inspection gates at critical stages.
Certified steel stock selected per material grade specification.
Drop-forged housing — aligned grain structure, not casting voids.
Precision turning and milling to OEM fitment tolerances.
Controlled heat treatment to spec — verified by Rockwell hardness testing.
Black oxide or zinc plating for corrosion resistance.
Greaseable zerk fitting and final component assembly.
Every unit checked before it leaves the facility.
Every unit passes multiple inspection gates before leaving the facility. Batch documentation is available — because your customers and your brand depend on consistent quality, not just a certificate on the wall.
Every ball stud batch verified against spec to confirm heat treatment outcome — no sampling, full batch coverage.
Surface treatment durability under accelerated corrosion conditions. Physical fitment trial on OEM reference parts for every new batch.
Critical dimensions measured on coordinate measuring machine to verify OEM fitment tolerances on every production batch.
Quality Management System
Production Trading Assessment
Restricted Substances
















Every housing is drop-forged — never cast. Aligned grain structure, measurable impact resistance. Our baseline, not an upgrade.
Hardness, dimensional tolerance, fitment, surface quality — every unit. Batch records available on request. You know exactly what you’re receiving.
Ball stud material is the performance variable: 4130 for standard OEM replacement, 4340 for heavy duty, 300M for racing. TitanX is a separate modular joint design — a composite assembly with field-replaceable internals.
Custom logo, retail packaging, Amazon-ready boxes, neutral packaging. Artwork turnaround 2 weeks. Built for aftermarket brands, distributors, and Amazon sellers.
Zerk fitting on every unit, every grade. Regular lubrication flushes contamination and extends service life — the single biggest failure point of sealed OEM designs.
From 2D/3D drawings or physical samples. DFM feedback in 5 business days, sample in 3–4 weeks. If your application needs something that doesn’t exist, we build it.
As a dedicated ATV UTV ball joint manufacturer, SYZ Machine gives you direct factory access — no trading company markup, no quality uncertainty, full engineering support from day one. Whether you need OEM replacement supply, private label, or custom development, you work with the factory that makes the part.
Distributors, aftermarket brands, and race teams who trust SYZ Machine for consistent quality and engineering support.
“We switched from our previous supplier after two seasons of inconsistent hardness on the ball studs. SYZ Machine provides batch test reports with every shipment — that level of documentation is exactly what our QA team needs.”
Procurement Manager — Aftermarket Distributor, USA
“We needed a 300M stud version for our Polaris RZR Pro R race build — something most suppliers can’t even quote. SYZ Machine had a sample to us in 3 weeks and the fitment was perfect.”
Technical Director — Off-Road Race Team, Canada
“Private label packaging was ready within 2 weeks of confirming artwork. The retail boxes look excellent and the MOQ of 100 pcs per model works well for our catalog management. Reliable supply and responsive team.”
Brand Owner — Powersports Parts Brand, Australia
Our ATV ball joints and UTV ball joints are widely used across off-road and powersports vehicles — from recreational trail riding to professional racing.


Used in upper and lower control arms, A-arms, and suspension assemblies across all major UTV platforms. Our heavy duty UTV ball joints handle the lateral and vertical loads generated by high-travel suspension setups.


Commonly installed in ATV front suspension assemblies — including A-arm pivot points and knuckle connections. Our OEM replacement ATV ball joints provide direct fitment across Yamaha, Polaris Sportsman, and Can-Am ATV models.


Designed for high-impact racing environments where standard ball joints fail under repeated shock loading. Our 300M and TitanX grades are specified by race teams running Polaris RZR Pro R and Can-Am Maverick X3 competition builds.
Minimum order quantity is 100 pieces per model. For multi-SKU orders, each model is assessed individually. Contact us for mixed-model order flexibility.
Yes. 300M is available as an upgrade on most models. Specify when quoting — we’ll confirm dimensional compatibility and provide pricing. The 300M stud fits the same housing as the standard grade.
TitanX is our modular composite ball joint — similar in concept to the Keller Ball Joint system. It uses a multi-piece precision assembly that allows higher articulation angles, field-replaceable internals, and application-specific engineering. It’s designed for extreme off-road builds and custom OEM applications.
Yes. Material certs, hardness test reports, and dimensional inspection records are available on request. For large or ongoing orders we provide batch-level documentation as standard.
Yes. As a direct factory, we support tiered pricing based on order volume. We provide low MOQ samples for quality testing and fitment verification before you commit to bulk production. For wholesale and private label (custom brand) requirements, we have a flexible threshold to help you start your product line with minimal inventory risk. Contact us with your target volume and we will provide a tailored quote.
Yes. We offer full private label services including custom logo, retail packaging, neutral packaging, and Amazon-ready packaging. Artwork turnaround is typically 2 weeks after artwork approval.
Yes. We accept 2D/3D drawings (DXF, STEP, IGES) and physical samples. DFM feedback is typically provided within 5 business days. Sample lead time is 3–4 weeks depending on complexity.
Standard lead time is 30–45 days for production orders. In-stock models may ship faster. Expedited production is available — contact us with your timeline requirements.
OEM replacement supply, heavy duty upgrades, private label programs, or custom development — send requirements and we respond within 24 hours with a qualified quote.
MOQ 100 pcs · 40 days lead time · Private label available · Custom development accepted