6L1987 Cogged V-belt Set fit Caterpillar
6L1987 Cogged V-belt Set fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
6L1987 Cogged V-Belt Set for Caterpillar
6L1987 is a cogged V-belt set for engine belt applications on Caterpillar equipment. It is used with Caterpillar Challenger machines, engine-machine applications, and industrial engines, including the models and engine series listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
Fitment
The available fitment information identifies the part for the following Caterpillar equipment and engine applications:
| Equipment brand | Caterpillar |
| Equipment group | Caterpillar Challenger |
| Equipment group | Caterpillar engine-machine applications |
| Equipment group | Caterpillar industrial engine applications |
| Machine model | 65C |
| Machine model | 65D |
| Engine model | 3306 |
| Engine series | C-9 and C9 |
| Engine model | 3126B |
| Engine model | 3176C |
| Engine model | 3196 |
| Engine series | C-10 |
| Engine series | C-12 |
The fitment data covers both machine installations and industrial engine applications. The engine designations are retained as provided in the reference data, including the separate C-9 and C9 designations.
Cross-reference numbers
The following numbers are associated with the 6L1987 cogged V-belt set in the available interchange and supplier reference data:
| Caterpillar part number | 6L1987 |
| Interchange number | 3L9489 |
| Interchange number | 5L5016 |
| Supplier reference | 6L1987 |
Part number 6L1987 is the SKU and the primary reference for this product. Numbers 3L9489 and 5L5016 are listed as associated interchange or cross-reference numbers for the belt set. Verify the number stamped on the removed belt or recorded in the equipment parts documentation before installation.
Specifications
| Part type | Cogged V-belt set |
| Category | Engine belts |
| Application | Engine belt drive on Caterpillar equipment and industrial engine installations |
| Part condition | New |
| Part classification | Aftermarket spare part |
| Manufacturer | CTP (Costex Tractor Parts) |
| Weight | 2.6 lb |
| Listed length | 7 cm |
| Listed width | 5.5 cm |
| Listed depth | 30 cm |
The supplied dimensional data is recorded as length, width, and depth in the product reference information. Belt profile, individual belt quantity within the set, belt circumference, section designation, and material specification are not provided in the available data.





Questions 6L1987 Cogged V-belt Set fit Caterpillar 0 questions