| 5 & 6 wire Rectifiers |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| |
 |
| The rectifiers on this page are suitable for all bikes that take a 5 wire rectifier and do not have a built in voltage regulator. Consult a repair manual for your bike to see if your bike uses a combination regulator/rectifier. (See the application chart at the bottom of this page) The rectifiers on this page are Not for DOHC Honda fours. A combination regulator / rectifier for the 1979~1983 DOHC Honda 750~1100 can be found on my regulator / rectifier units page. |
All the rectifiers on this page are rated at is rated at 55 amps constant use. Most OEM 5
wire rectifiers are only rated at 18 to 22 amps.
wire rectifiers are only rated at 18 to 22 amps.
| All the rectifiers on this page have 5 wires except where noted. |
55 Amp
Universal fit
Rectifier
$44.00
Model R255a
Universal fit
Rectifier
$44.00
Model R255a
It mounts on a single 5mm stud, is 48mm
square, 40mm thick and comes with a locknut
and washers. It is sold in kit form as a
universal fit rectifier (with enough heat shrink
tubing to complete the job.) The leads are
10" long when sold without a plug; longer
leads are available on special order eMail for
a time frame and price on special orders.) You
can use the original plug or order your choice
of connectors.
square, 40mm thick and comes with a locknut
and washers. It is sold in kit form as a
universal fit rectifier (with enough heat shrink
tubing to complete the job.) The leads are
10" long when sold without a plug; longer
leads are available on special order eMail for
a time frame and price on special orders.) You
can use the original plug or order your choice
of connectors.
$48.00
R255a-7H Rectifier
The above rectifier with 5" leads and 8 prong
plug for the Honda GL1000 and the CB750
automatic.
This rectifier comes with a new mating plug for
the wiring harness.
R255a-7H Rectifier
The above rectifier with 5" leads and 8 prong
plug for the Honda GL1000 and the CB750
automatic.
This rectifier comes with a new mating plug for
the wiring harness.
R2-55a rectifier for 1969~1978
SOHC in-line four cylinder Hondas
$45.50
R255a-H
This part has the same plug as the R2-55-m pictured above and
to the right but with 5" wires inserted into the plug in the
proper order for Honda fours. CB350f, CB400f, CB500 four,
CB550, and CB750.
Note: some CB500 fours have a pin type terminals in the plug rather than
the spade type terminals like all the other Hondas used. These pin type
terminals & plug are no longer available and the best option is to order a
6PFL plug or the RH-1h repair harness below to go with this rectifier.
SOHC in-line four cylinder Hondas
$45.50
R255a-H
This part has the same plug as the R2-55-m pictured above and
to the right but with 5" wires inserted into the plug in the
proper order for Honda fours. CB350f, CB400f, CB500 four,
CB550, and CB750.
Note: some CB500 fours have a pin type terminals in the plug rather than
the spade type terminals like all the other Hondas used. These pin type
terminals & plug are no longer available and the best option is to order a
6PFL plug or the RH-1h repair harness below to go with this rectifier.
Repair harness for 1969~1978 Honda Fours.
$4.50
RH-1H
This is just the ticket for SOHC Honda fours with damaged wiring harnesses where the rectifier plugs in or the
early CB500 with the obsolete pin type plug. The RH-1H repair harness comes with a mating plug for the rectifier
above and 6" of heavy duty wire color coded to your bike. Enough heat shrink tubing is included to seal the
connections after you solder it in.
$4.50
RH-1H
This is just the ticket for SOHC Honda fours with damaged wiring harnesses where the rectifier plugs in or the
early CB500 with the obsolete pin type plug. The RH-1H repair harness comes with a mating plug for the rectifier
above and 6" of heavy duty wire color coded to your bike. Enough heat shrink tubing is included to seal the
connections after you solder it in.
Rectifier for 1970~1977 Suzuki 2 stroke triples
$45.50
R255-SGT
This part has the same plug as the R2-55-m pictured above and to the right but with
5" wires inserted into the plug in the proper order for Suzuki GT triples. GT380,
GT550 and GT750
$45.50
R255-SGT
This part has the same plug as the R2-55-m pictured above and to the right but with
5" wires inserted into the plug in the proper order for Suzuki GT triples. GT380,
GT550 and GT750
The later GT750 and perhaps the smaller bikes in the GT series had only 4 wires in the plug. Some bean counter at Suzuki must have figured that
since the rectifier grounds through the mounting post, a ground wire was not needed. This rectifier also grounds through the mounting post but I
include the redundant ground wire. Do not worry the original rectifier on your GT only had 4 wires, this one will work on your bike.
The good news is the rest of the wires are in the same place and in the same plug. I install the redundant ground wire on the rectifier and I will
send you a ground wire for the plug on the harness at no extra charge (just ask at the time of purchase.)
since the rectifier grounds through the mounting post, a ground wire was not needed. This rectifier also grounds through the mounting post but I
include the redundant ground wire. Do not worry the original rectifier on your GT only had 4 wires, this one will work on your bike.
The good news is the rest of the wires are in the same place and in the same plug. I install the redundant ground wire on the rectifier and I will
send you a ground wire for the plug on the harness at no extra charge (just ask at the time of purchase.)
R2-55a-KZ650 rectifier for early Kawasaki KZ650
$45.50
R2-55a-KZ650
This part has the same wire configuration as the stock part but the positive lead
from the rectifier is red instead of white. However with the stock part, the white
positive lead from the rectifier plugs into a read wire on the wiring harness so it
should be less confusing to connect than the OEM part.
$45.50
R2-55a-KZ650
This part has the same wire configuration as the stock part but the positive lead
from the rectifier is red instead of white. However with the stock part, the white
positive lead from the rectifier plugs into a read wire on the wiring harness so it
should be less confusing to connect than the OEM part.
The rectifier for the early KZ400 is almost the same but has a slightly different
wiring configuration. Use the button to the right to order this part for the
KZ400. R2-55a-KZ400 $45.50
wiring configuration. Use the button to the right to order this part for the
KZ400. R2-55a-KZ400 $45.50
55 Amp Universal fit
6 wire Rectifier
$52.50
Model R255a6
6 wire Rectifier
$52.50
Model R255a6
This rectifier was designed
with the H series Kawasaki
triples and Yamaha 2 stroke
twins in mind but will also
work on other bikes that
require a 9 diode rectifier with
a half wave positive output for
the voltage regulator.
with the H series Kawasaki
triples and Yamaha 2 stroke
twins in mind but will also
work on other bikes that
require a 9 diode rectifier with
a half wave positive output for
the voltage regulator.
The R2-55a6 rectifier is a universal fit 6 wire rectifier like the one at the top of
the page but it has an additional set of diodes for a half wave positive output for
bikes that require this. It is sold in kit form as a universal fit rectifier (with
enough heat shrink tubing to complete the job.) Like the 5 wire rectifiers on this
page the AC inputs wires are Yellow, red is positive and black is negative. The
sixth wire from the 1/2 wave positive section of the rectifier is blue.
the page but it has an additional set of diodes for a half wave positive output for
bikes that require this. It is sold in kit form as a universal fit rectifier (with
enough heat shrink tubing to complete the job.) Like the 5 wire rectifiers on this
page the AC inputs wires are Yellow, red is positive and black is negative. The
sixth wire from the 1/2 wave positive section of the rectifier is blue.
This rectifier is for:
For Kawasaki KH series
Yamaha R5, DS7, RD250 and RD350.
Any of these bikes can use my 5 wire rectifier when used with my VR2-U voltage regulator.
For Kawasaki KH series
Yamaha R5, DS7, RD250 and RD350.
Any of these bikes can use my 5 wire rectifier when used with my VR2-U voltage regulator.
This photo shows a R2-55a on a customer's GT750
Suzuki café racer.
There is more info on the regulator on my regulators page.
Suzuki café racer.
There is more info on the regulator on my regulators page.
This photo shows a R2-55 rectifier and my
prototype voltage regulator on a 1976 Honda
CB750.
There is more info on the regulator on my
regulators page.
prototype voltage regulator on a 1976 Honda
CB750.
There is more info on the regulator on my
regulators page.
| I welcome photos of my parts on customers bikes. Send in your photos and I'll put them up. |
| (This is a partial list of the bikes that can use these rectifiers.) Honda: CB350/4, CB400F Super Sport, CB500, CB550, CB750, (early) GL1000 through 1978. Yamaha: DS7 and R5 (1969~73), RD250, RD350, RD400, XS1, TX500, TX650, TX750, (early) XS650 Kawasaki: All early fours: Z1, KZ900, KZ400 and KZ750 twins (H1 and H2 use the R2-55a6) Suzuki: GT380, GT500, GT550, GT750. GS series through 1978, GS400, GS550, GS750 |
Note: The 2 rectifiers below are for Kawasaki 400 and 650 that have 3 yellow wires from the alternator.
If the stock rectifier on your bike only has 2 yellow wires, you need a unit that has a built in regulator for permanent magnet alternators and this
part will not work on your bike.
If the stock rectifier on your bike only has 2 yellow wires, you need a unit that has a built in regulator for permanent magnet alternators and this
part will not work on your bike.
R255a-Y650T rectifier for early Yamaha
650 twins
This rectifier is for Yamaha 650 twins (XS1, TX650 and
XS650) that originally came with a separate rectifier and
voltage regulator. This is a plug and play part for these bikes.
The OEM rectifier had white AC leads but we use yellow for
the AC leads on all R255a series rectifiers so we have added
a white band on the AC leads to mark them for Yamaha.
This rectifier is shipped with 5" leads and male plug like the
OEM plug but with a locking tab. If you want to use a
locking plug on the wiring harness, see my connectors page
for a 6PFL plug.
$45.50
R255a-Y650T
650 twins
This rectifier is for Yamaha 650 twins (XS1, TX650 and
XS650) that originally came with a separate rectifier and
voltage regulator. This is a plug and play part for these bikes.
The OEM rectifier had white AC leads but we use yellow for
the AC leads on all R255a series rectifiers so we have added
a white band on the AC leads to mark them for Yamaha.
This rectifier is shipped with 5" leads and male plug like the
OEM plug but with a locking tab. If you want to use a
locking plug on the wiring harness, see my connectors page
for a 6PFL plug.
$45.50
R255a-Y650T
Repair Harness for the Yamaha
650 twin rectifier.
The R255a-Y650T rectifier
already comes with a 6 prong
plug for the harness with a set
of terminals.
This option swaps out the
terminals for a repair harness
kit with 5" leads, butt splice
joints and enough heat shrink
tube to seal the repair.
$1.50
RH-Y650t
650 twin rectifier.
The R255a-Y650T rectifier
already comes with a 6 prong
plug for the harness with a set
of terminals.
This option swaps out the
terminals for a repair harness
kit with 5" leads, butt splice
joints and enough heat shrink
tube to seal the repair.
$1.50
RH-Y650t