160
3932
3931
3924
3923
SW-RP90 CUSTOM, Courtesy of Southern Wind Shipyard
3929
3930
3926
3922
3921
3925
3920
Cars
40 mm Switch T-Track 
Battcar Systems
Patented Battcar switch systems cut sail stack height in half by 
automatically splitting cars onto two tracks.
Typical boat size:
Monohulls: over 43 m (140');
Multihulls: over 27 m (90')
About Switch T-Track Battcar systems: see feature pages at 
beginning of this section.
Contact Harken to request lead time.     If your boat or sail area is larger than the lengths and sail areas listed, please contact Harken.
INTERMEDIATE 
CAR
REEF CAR
TACK CAR
BATTEN CARS
REPLACEMENT STUDS
Replacement Studs
HEADBOARD 
CAR
HEADBOARD PLATE
Part
No.
Description
Length
Width
Weight
Maximum sail area
Maximum
working load
Monohull
Multihull
in
mm
in
mm
oz
g
ft2
m2
ft2
m2
lb
kg
 3921 
 Non-locking headboard car assembly 
 13 3/4 
 349 
 3 1/2 
 89 
 151 
 4280 
 3780 + 
 350 + 
 2400 + 
 275 + 
 
 
 3924 
 Intermediate car 
 3 21/32 
 93 
 3 1/2 
 89 
 14 
 392 
 3780 + 
 350 + 
 2400 + 
 275 + 
 3549 
 1613 
 3932 
 Batten car/16 mm stud 
 5 1/32 
 128 
 3 1/2 
 89 
 34.5 
 979 
 3780 + 
 350 + 
 2400 + 
 275 + 
 5940 
 2700 
 3931 
 Batten car/18 mm stud 
 5 1/32 
 128 
 3 1/2 
 89 
 35.3 
 1000 
 3780 + 
 350 + 
 2400 + 
 275 + 
 5940 
 2700 
 3925 
 CRX roller batten car 
 6 1/16 
 153 
 3 1/2 
 89 
 37 
 1045 
 3780 + 
 350 + 
 2400 + 
 275 + 
 5940 
 2700 
 3926 
 Universal batten car 
 5 1/32 
 128 
 3 1/2 
 89 
 22 
 617 
 3780 + 
 350 + 
 2400 + 
 275 + 
 5940 
 2700 
 3923 
 Reef car 
 6 1/16 
 153 
 3 1/2 
 89 
 30 
 843 
 3780 + 
 350 + 
 2400 + 
 275 + 
 8998 
 4090 
 3922 
 Tack car 
 6 1/16 
 153 
 7 1/4 
 184 
 81 
 2303 
 3780 + 
 350 + 
 2400 + 
 275 + 
 13200 
 6000 
 Headboard Plate 
 
 
 
 
 
 
 
 
 
 
 
 
 3920 
 Web-on headboard plate 
 13 11/16 
 348 
 5/8 
 16 
 70.2 
 1990 
 
 
 
 
 
 
Part
No.
Description
Ø
Fits
in
mm
 3929  18 mm toggle/stud 
 23/32 
 18 
 3926, 3931, 3932 
 3930  16 mm toggle/stud 
 5/8 
 16 
 3926, 3931, 3932 

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