Skip to content
ALBERTA-BASED · Serving customers across Western Canadasales@northcore.parts
A-42109-AI Bearing ( )
A-42109-AI Bearing ( ) – additional image 2A-42109-AI Bearing ( ) – additional image 3

NC-024147 · Bearings, Bushings, Seals

A-42109-AI Bearing ( )

CAD 13.09

In stock

Bearing ( ) – reference A-42109-AI. Catalogue-listed applications: Allis Chalmers, Amco, Bush Hog. View photos, specifications, CAD pricing and delivery options from NorthCore.

Standard delivery: 3–7 business days. Other services and estimates are shown at checkout. Minimum online order: CAD 100 in parts, excluding shipping and tax. Add this part to your cart to calculate delivery and review your order.

Ask about this part

Part specifications and references

NorthCore code
NC-024147
Reference numbers
A-42109-AI, 25520, 17201X, 70210009, W983148, JD7418, 643124M91, 050260M1, 13958
Listed package quantity
1
Product information and configuration
Quantity indicated in catalogue: 1

Replacement part: Bearing (25520). 

Configuration: Tapered Roller Bearing Cup (25520)
This tapered roller bearing cup (industry standard number 25520) is a precision-machined outer ring designed to support combined radial and axial loads in agricultural and industrial equipment. The cup pairs with a 25580 or 25590 cone to form a complete tapered roller bearing assembly used in axle hubs, drive shafts, gearboxes, and wheel bearing applications on tractors and harvesting equipment.
Specifications
Type: Tapered Roller Bearing Cup (outer ring / race)
Outside Diameter (OD): 3.265 in.
Cup Width: 0.750 in.
Use with cone: 25580 (1.750 in. ID) or 25590 (1.796 in. ID)
Compatible Applications
The 25520 bearing cup is a widely used industry-standard bearing component found in agricultural tractors, balers, combines, forage harvesters, lawn and garden equipment, boat trailers, and general industrial machinery requiring tapered roller bearing support.
Replaces Part Number(s):
A-42109-AI, 25520, 17201X, 70210009, W983148, JD7418, 643124M91, 050260M1, 13958
New aftermarket replacement part - not remanufactured, not used.

Reference numbers: A-42109-AI, 25520, 17201X, 70210009, W983148, JD7418, 643124M91, 050260M1, 13958
Application notes
  • One New Aftermarket Replacement Tapered Roller Bearing Cup (25520)
  • This tapered roller bearing cup (industry standard number 25520) is a precision-machined outer ring designed to support combined radial and axial loads in agricultural and industrial equipment. The cup pairs with a 25580 or 25590 cone to form a complete tapered roller bearing assembly used in axle hubs, drive shafts, gearboxes, and wheel bearing applications on tractors and harvesting equipment.
  • Use with cone: 25580 (1.750 in. ID) or 25590 (1.796 in. ID)
  • New aftermarket replacement part - not remanufactured, not used.

Browse related parts

Other listings with this reference

These are separate offers. Compare each listing’s specifications, package details and price.

NORTHCORE EQUIPMENT SUPPLY

Search the parts catalogue

Browse equipment parts, compare prices and order online. By part number · By category · By equipment make

Prices in CADDelivery across Canada

Minimum parts order: CAD 100 · Shipping and taxes calculated at checkout

THE CATALOGUE

All parts

Loading parts…

MORE THAN A CATALOGUE

Can’t see the part you need?

Tell us what you’re looking for. We’ll work on finding it.

Part details
Shipping and taxes calculated at checkout.Minimum online order: CAD 100 in parts.

Choose your part using the listed numbers and specifications. Availability, shipping and taxes are checked at checkout.

Listed applications
Your parts cart

Your parts cart

Your cart is saved on this device for 30 days. Prices and availability are checked again when you order.

Review your parts and quantities, then continue to delivery and payment.

Delivery and applicable taxes are calculated at checkout.

Need help with this order? Send an enquiry

Send a parts enquiry

Send your request directly to NorthCore. Your selected parts and quantities are included automatically. Machine details are optional.

For kits and packs, tell us the number of units or packs needed. We’ll confirm exactly what is included.

We’ll reply by email. Sending this enquiry does not create an order or take payment.

By sending, you ask NorthCore to contact you about this enquiry. Your details are processed through Formspree, which may process information outside Canada. No marketing signup. Privacy Notice.
PARTS SOURCING

WE CAN HELP

Can’t find your part?

Send us the part number or a description. Our team will look for options and reply by email.

Parts request

Tell us what you need. Only three fields are required (*). Send your request here — no email app needed.

Add machine & company details (optional)
Have photos or a nameplate?
Email them to sales@northcore.parts using the same name and part details. This form sends text only.

We’ll review your details and reply by email. No order or payment is created.

By sending, you ask us to contact you about this enquiry. Your details are processed through Formspree, which may process information outside Canada. No marketing signup. Read our Privacy Notice (new tab) and Terms & Ordering (new tab).