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SKU:
NLT1J01889
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Case IH 4-Inch Disc Harrow Half Spool 1-1/8-Inch Square 472591R3
$75.99
In Stock
$75.99
Sale price
$75.99
Regular price
This new aftermarket 4-inch half spool replaces 472591R3 for compatible Case IH disc harrows with 1-1/8-inch square axles.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Case IH disc harrows 37, 46, 48, 61, 120, 122, 130, 132, 150, 330, 350, 370, 470, 480, 490, 610 and 760 where 472591R3 and 1-1/8-inch square axle are used
Product Overview
A worn or cracked spool lets disc blades shift, changes gang spacing, and can keep the assembly from tightening evenly. This cast half spool restores the correct spacing at a matching bearing or gang location when the axle and neighboring parts are still usable.
Disc model names alone do not confirm the bore or spacing. Measure the square axle across flats, the spool length, outside profile, blade spacing, and the removed part. Some similar Case IH assemblies use round axles or a shorter spool.
Key Features & Performance
- 4-inch half spool / spacer for disc gangs
- 1-1/8-inch square bore
- Cast replacement for worn or broken spacing hardware
- Replaces Case IH reference 472591R3
Replaces Part Numbers
- 472591R3
- 472591R2
- 472591R1
Common Uses
- Replacing a broken spool found during gang rebuild
- Correcting loose blade spacing on a square axle
- Restoring the bearing-side stack after seized hardware removal
Technical Specifications
- Product Type: Disc harrow half spool / spacer
- Length: 4 inches
- Bore: 1-1/8-inch square
- Material: Cast metal
- Condition: New aftermarket replacement
Installation & Fitment
- Disassemble the gang with suitable support and tools
- Measure axle and compare the complete stack order
- Inspect blades, bearings, axle threads, nuts, and adjacent spools
- Replace cracked or badly worn neighboring parts
- Tighten the gang evenly and recheck after initial field use
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is this a bearing? A: No. It is the half spool or spacer used in the disc gang near compatible bearing arrangements.
Q: Will it fit a round axle? A: No. This version has a 1-1/8-inch square bore.
Q: Why measure if my model is listed? A: Disc gangs may have been rebuilt or changed, and similar models used different axle and spacing setups.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 472591R3 disc spool, Case IH half spool spacer, 1-1/8 square disc axle spacer, 4 inch harrow spool, disc gang rebuild part
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.