5L3539 Lock Nut fit Caterpillar
5L3539 Lock Nut fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
5L3539 Lock Nut for Caterpillar Equipment
The 5L3539 is a nylon locknut used on Caterpillar equipment and systems, including marine gear, marine transmission, wheel loader, and wheel tractor applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The part is identified by SKU 5L3539. It belongs to the Nylon Locknuts category and is listed for use in the Caterpillar equipment applications specified below. The available application data includes equipment type and model designations; no additional thread specification, material grade, or installation position is provided.
Fitment
- Marine Gear 3192
- Marine Transmission 7261
- Wheel Loader 980
- Wheel Loader 980B
- Wheel Tractor 641B
- Wheel Tractor 650B
The listed fitment covers the 5L3539 locknut application across the specified Caterpillar marine equipment, wheel loader, and wheel tractor models. Model identification should be checked against the equipment parts documentation before installation, particularly where the same machine series may use more than one fastener specification.
Specifications
| Part type | Lock nut |
| Category | Nylon Locknuts |
| SKU | 5L3539 |
| Equipment manufacturer | Caterpillar |
| Application groups | Marine gear, marine transmission, wheel loader, wheel tractor |
| Listed equipment models | 3192, 7261, 980, 980B, 641B, 650B |
| Part condition | New |
| Part manufacturer | CTP (Costex Tractor Parts) |
| Weight | 0.1 lb |
| Length | 10.16 cm |
| Width | 15.24 cm |
| Depth | 1.27 cm |
The dimensional and weight data listed above are the available specifications for SKU 5L3539. Thread size, thread pitch, wrench size, locking insert details, material grade, tightening torque, and package contents are not specified in the available product data.







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