Key details
- Product type: 27 mm CB Battcar
- Options: Stud Diameter
- Available variants: 3
Overview
A Harken Battcar system along with full-length battens helps raise, douse, and reef with ease and acts as extra crew if you’re sailing shorthanded. Battcar systems outperform in-mast or in-boom furling, cost less, and you don’t need to recut your sail. The one-piece solid aluminum construction is lightweight and strong. The free-rolling ball bearing cars let you hoist and reef the main quickly on all points of sail.
Specifications
Specifications vary by the selected variant. Use the variant table below to compare the available configurations and part numbers.
Variant details
Select the option combination that matches the required part number.
| Stud Diameter | Part No. |
|---|---|
| 10 mm | HKN-3856 |
| 12 mm | HKN-3857 |
| 14 mm | HKN-3879 |
FAQs
You will need a tape measure, Allen wrench (5mm), power drill, drill bit (17/64″), Phillips screwdriver, hammer, hacksaw, center punch, file, nut driver (10mm), putty knife, and tape.
The 3856 Battcar requires 40 brown Torlon® balls (5/16″ diameter each). Insert balls into the car one by one from the center of the clip.
It is recommended to load cars onto the track without the sail installed to keep balls captive.
Load cars onto the track without the sail installed to keep balls captive.
Strictly follow all instructions to avoid an accident, damage to your vessel, personal injury or death.
Yes, mast-up installation is possible. Use the halyard to hold cars and a secured stepladder for working above the boom.
No, the batten receptacle must be purchased separately.
Place the car on edge with the retaining clip in place. Insert balls one-by-one from the center of the clip and roll into return race.
Hold the car so the clevis pin head faces up. Align on the loader’s guide section and gently roll onto upper tracks. If cars stick, realign and roll on.
Screw the threaded stud into the terminal, load the toggle using a 5mm Allen wrench and 10 mm wrench, then tighten the locknut.
Contact the SailRACE team — as certified marine experts we’re happy to help with product selection, installation and after-sales servicing, before and after your purchase.








