Introduction
When reliability and durability matter, the DAC4472W-CS18 KOYO bearing stands out as a top choice for wheel hub and hub-carrier applications used in ATVs, UTVs, and other powersports vehicles. Engineered to withstand combined radial and axial loads and to resist contamination in harsh environments, this bearing is widely used as an OEM replacement and an aftermarket upgrade. This article covers product description, cross-reference numbers (including All Balls 25-1628 and Polaris OEMs), common fitments, packaging options BYWB Bearing offers, and practical buying and maintenance tips.
1. DAC4472W-CS18 Bearing — Description & Features
Basic Design and Dimensions
The DAC4472W-CS18 is a double-row bearing tailored for hub assembly use. Its nominal dimensions are:
Inner diameter (d): 44.00 mm
Outer diameter (D): 72.00 mm (catalog listings may show slight variations such as 72.08 mm)
Width / Thickness (B): approximately 33.10 mm
These dimensions (44 × 72 × 33.1 mm) are the primary reference when verifying compatibility. The bearing is typically produced with protective sealing to retain lubricant and minimize ingress of dirt and water — a critical feature for off-road applications.
Performance Attributes
As a double-row design, the DAC4472W-CS18 handles both radial and axial loads effectively, making it suitable for wheel hub environments where impacts, cornering forces, and sustained loads occur. The sealed configuration helps extend service life in wet or dusty conditions. Manufactured to precise tolerances and hardened for wear resistance, this bearing delivers consistent rotational performance and reduced play under load.
2. Cross Reference and Interchange Numbers
One advantage for buyers and technicians is the clear cross-reference listing available for this bearing. Being able to match numbers across brands simplifies sourcing and ensures the correct replacement is purchased.
Common Cross Numbers and Equivalents
All Balls 25-1628 — a commonly used hub/bearing kit number in the powersports aftermarket.
DAC 447208331 CS — catalog variant used by some suppliers.
DAC 447200331 CS — another variant within the same DAC 4472 family.
DAC 4472 W CS18 — core designation with suffixes indicating sealing and design options.
DAC447233 and DAC447208331 — additional catalog references noted in parts lists.
DAC 4472 W CS18 FG — suffix variants occasionally appear in manufacturer listings.
OEM Fitments
This bearing corresponds to several OEM numbers commonly associated with Polaris vehicles:
3514699 (Polaris)
3514627 (Polaris)
When replacing hub bearings on Polaris ATVs or UTVs, matching either of these OEM numbers to the DAC4472W-CS18 is a common practice. Buyers should still confirm dimensions and vehicle part diagrams to ensure exact fit.
3. Fitment & Applications
Powersports & Off-Road Vehicles
The DAC4472W-CS18 is widely specified for hub and wheel applications on ATVs and UTVs where robust load handling and contamination resistance are required. Many technicians and enthusiasts replace the OEM bearings with DAC4472W variants for added durability in high-stress use such as trail riding, mud, or competitive off-road.
Compatibility with All Balls 25-1628
For customers familiar with All Balls part numbering, the All Balls 25-1628 kit is a known benchmark. BYWB positions the DAC4472W-CS18 as compatible with the same fitment range, enabling users who previously bought the All Balls kit to find a direct replacement without guesswork.
Broader Use Cases
Beyond Polaris, bearings sharing the 44 × 72 × 33.1 mm footprint or the DAC4472 family designation can be used in other hub designs if the geometry and sealing requirements match. Always verify the vehicle’s service manual or parts diagram before installation.
4. Packaging & Shipping Solutions by BYWB Bearing
An often-overlooked element of purchasing precision parts is packaging. Proper packaging protects bearings from mechanical damage and corrosion during storage and transport. BYWB offers flexible packaging to meet retail, distribution, and bulk needs.
Packaging Options
Color Box (Retail Box)
Each bearing is boxed in a branded color retail box with interior cushioning to prevent movement.
Boxes include printed specification labels (bearing number, dimensions, batch/QC ID).
Preferred by retail customers and distributors who require shelf-ready presentation.
Blister Package (Clamshell / Sealed Blister)
Bearings are sealed in a transparent blister attached to a printed backing card.
Allows visual inspection while keeping the bearing sealed from contaminants.
Convenient for retail display and inventory control.
Bulk / Industrial Packaging
For wholesalers and OEM purchasers, bearings can be packed in bulk cartons with separators, anti-corrosion paper, and desiccants.
Inner packaging prevents contact between items to avoid surface damage.
Protective Measures & Quality Control
Bearings are treated with preservative oil and wrapped in anti-rust paper when shipped.
Foam inserts, molded trays, or bubble padding prevent shock and abrasion.
Each package receives a QC inspection label indicating date and inspector ID.
Outer cartons are reinforced and clearly labeled to minimize rough handling.
5. Ordering, Installation & Maintenance Tips
Ordering Tips
Confirm the bearing’s dimensions (44 × 72 × 33.1 mm) and suffix (CS18, W, FG, etc.).
Cross-check vehicle OEM numbers (for example, 3514699 or 3514627) to avoid mistakes.
Specify desired packaging (box, blister, or bulk) based on storage or resale needs.
Installation Guidance
Clean hub bores and mating surfaces thoroughly before pressing the bearing in.
Use a proper hydraulic or press tool; apply force only to the bearing ring that is designed to take the load during installation.
Follow vehicle torque, preload, and assembly instructions exactly to ensure optimal life and safety.
Rotate the hub after installation to check for smooth operation and absence of binding.
Maintenance & Longevity
Inspect bearings periodically for play, noise, or signs of contamination.
Replace bearings showing pitting, corrosion, excessive play, or noise — do not attempt to run heavily worn bearings.
Replace bearings in pairs (left and right) to maintain uniform handling characteristics.
Store spare bearings in a dry, vibration-free area and keep them in their sealed packaging until use.
6. Why Choose BYWB’s DAC4472W-CS18 KOYO Bearing?
- Accurate Cross-Reference Information — BYWB lists all common cross and OEM numbers to help buyers find the correct replacement quickly.
- Multiple Packaging Choices — Color box and blister packaging replicate trusted retail standards; bulk options available for commercial buyers.
- Quality Preservation — Anti-rust treatments, cushioning, and QC checks safeguard product integrity.
- Technical Support — BYWB provides installation tips and fitment guidance to reduce returns and installation errors.
- Sourced for Performance — The DAC4472W-CS18 family offers robust load capacity suitable for demanding powersports use.
7. DAC4472W-CS18 VS 25-1628-HP
For customers who push their machines hard, BYWB also offers a High-Performance (HP) variant of the DAC4472W-CS18: compared with the standard KOYO version, the HP type features tougher heat-treated races and higher-grade steel, Double roller design, improved seals and grease, and tighter tolerances — delivering greater load capacity, longer service life in wet/muddy or high-shock conditions, and is recommended for aggressive off-road use.
Conclusion & Call to Action
The DAC4472W-CS18 KOYO bearing is a heavy-duty, double-row wheel bearing solution ideal for ATV and UTV hubs that require reliable performance under combined loads and challenging environmental conditions. With clear cross references (including All Balls 25-1628 and Polaris OEM numbers such as 3514699 and 3514627), precise dimensions, and multiple packaging options, BYWB Bearing provides both the part and the logistics support you need.
If you’d like, BYWB can help confirm compatibility with your vehicle — send your model and year, and we’ll match the correct part and packaging option for your needs. Order now or contact our support team for technical assistance and bulk pricing.
