2-Pack 4 Inch Idler Pulleys 164090 for King Kutter RFM 4 5 6 7 Ft Finish Mowers
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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.
| Application | Fitment Notes |
|---|---|
| King Kutter RFM-48 / RFM-48-XB | 164090 shown in factory parts diagram. |
| King Kutter RFM-60 | 164090 shown in factory parts diagram. |
| King Kutter RFM-72 | 164090 shown in factory parts diagram. |
| Selected 7 ft RFM configurations | Verify parts diagram because some 7 ft models use different pulley arrangements. |
Product Overview
King Kutter lists 164090 as the single idler pulley used in its RFM belt-drive system. The pulley guides and tensions the mower belt; worn bearings or a damaged groove can cause noise, belt tracking problems and premature belt wear.
Key Features & Performance
- Set of 2 idler pulleys
- King Kutter part 164090
- 4-inch idler pulley
- Used in RFM-48, RFM-60, RFM-72 and related finish mower parts diagrams
Common Reasons for Replacement
- Idler bearing is noisy or seized
- Belt is walking off or running unevenly
- Pulley groove is worn or damaged
Technical Specifications
- Pulley Diameter: 4 in
- Quantity: 2
OE / Reference Numbers
- 164090
Frequently Asked Questions
How do I confirm fitment? Confirm 164090 in the mower parts diagram and compare pulley diameter, belt profile and mounting bore.
Is this an OEM part? This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.