Tulip Over-the-Top Block
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Harken Tulip Over-the-Top Block
Over-the-top blocks lead lines aft over cabin houses, coamings, and splashguards. The 75 mm Tulip Over-the-Top Block features high-load sheaves and robust construction for demanding marine applications. This block is specifically engineered to handle substantial loads while maintaining smooth line performance in critical deck areas.
Key Features
- 75 mm block size optimized for big boat applications
- Maximum working load of 8,000 lbs (3,629 kg)
- Breaking load of 16,000 lbs (7,257 kg)
- Accommodates line diameter up to 9/16" (14 mm)
- Over-the-top design for leading lines aft
- Aluminum block construction with stainless steel fasteners
- Mounts with three 3/8" (10 mm) button head fasteners
- Can be installed with or without removing sheave for convenience
- Marine-grade durability for solid deck mounting
The block features aluminum construction paired with A4 (316) or A2 (18-8) stainless steel fasteners for superior corrosion resistance. Regular maintenance—flushing frequently with fresh water and periodically cleaning with mild detergent and water solution—ensures optimal performance and longevity in saltwater environments.
