The Crankcase Long Block is a replacement motor kit for the Husqvarna K750, K760, and K760II models. It is a pre-assembled block that includes the crankshaft, connecting rod, and cylinder assembly. The long block design allows for quick and easy replacement of the entire crankcase assembly. This OEM part comes with the necessary gaskets and seals for installation. The part numbers included are 581 72 19-09, 581 72 19-11 and 581 72 19-13.
Husqvarna K750, K760, and K760II genuine OEM crankcase long block.
- Factory genuine Husqvarna part
- Husqvarna 581 72 18-13, 581721813
- Husqvarna 581 72 19-11, 581721911
- Husqvarna 581 72 19-09, 581721909
- Includes crankcase
- Includes cylinder assembly
- Fits Husqvarna K750, K760, and K760II
Replaces Husqvarna Part Numbers:
- 581 72 19‑11, 5817219‑11, 581721911
- 581 72 19‑09, 5817219‑09, 581721909
- 581 72 19‑07, 5817219‑07, 581721907
- 581 72 19‑05, 5817219‑05, 581721905
- 581 72 19‑03, 5817219‑03, 581721903
- 581 72 19‑02, 5817219‑02, 581721902
- 575 82 59‑02, 5758259‑02, 575825902
- 544 88 90‑08, 5448890‑08, 544889008
- 574 36 41‑02, 5743641‑02, 574364102
- 544 88 90‑04, 5448890‑04, 544889004
- 506 37 57‑08, 5063757‑08, 506375708
- 506 38 50‑71, 5063850‑71, 506385071
- 506 37 57‑04, 5063757‑04, 506375704
SERVICE NOTE: Only fits the Husqvarna K750, K760, K760II. Not compatible with greater than 10% ethanol fuel.
Crankcase Assembly | Husqvarna K750, K760 | 581 72 19-08
Was:
$429.99
Now:
$315.55
Throttle Rod | Husqvarna K750, K760 | 506 37 13-02
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$12.99
Now:
$9.75
Blade Water Kit | Husqvarna K750, K760 | 505 09 55-01
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$44.99
Now:
$31.99