My friends at OSDparts.com have many hard to find parts in stock as well as custom kits for your Sea Doo plus they ship all over the world so check them out for your Sea Doo parts needs!
WANTED
Parts Inventories
from overstocked or closing Sea Doo shops. If you have parts or know of a Sea Doo dealer in your area that is closing, e-mail OSDparts.com with the details.

ALSO WANTED
Blown or wrecked Sea Doo watercraft in the Ohio vicinity. If you have one, e-mail me with description and price.

Have you had a bad experience with a dealer, repair shop, or engine rebuilder? If so, now you can post your experiences here. Hopefully this page will help others avoid the same fate!
OSDparts Items


Complete Carb
Rebuild Kits
For Sea Doo

Is your LCD
Hard to read?

Check out this
Gauge repair kit!

Have VTS on your
1995-up Sea Doo?

NEW Button Kit
Is now available!

Fuel Filter Element

Fits Most 2 Stroke
Carb Sea Doos

COMING SOON… Module Conversion Kits for 204470139 204470155 204470179 204470184 MPEMs

1995-1997 Sportster MPEM Conversion
1995 Speedster MPEM Conversion
1996 Speedster MPEM Conversion
1997 Speedster MPEM Conversion
1996 Challenger MPEM Conversion
1997 Challenger MPEM Conversion

Complete Pump Housing Kits!
DESS & Other Switches
Driveline Seal Assemblies
SeaDoo Tool Rental!
VTS Boot Upgrade Kit
Anti-Rattle Kits For Older Doos !

Jet Pump Rebuilding Services

New Parts (OSD)

Accessories & More
Drive/Pump
Gaskets
Hull/Body
Electrical
Engine
Fuel/Air Parts
Nuts Bolts Etc…
O-Rings
Misc. Parts

Used Components

OSDparts.com Parts List

Technical Info

Non-Wired MPEM Test

787/947 CB Reservoir Oil
1995-2004 VTS Test Info
4 Stroke Fault Codes
1995 & UP VTS Info
Fuel Economy Chart
Jetboat Engine Ref.
PWC Engine Ref. Chart
Choke Cable Info Chart
Coil Reference Chart
Crankshaft Exploded Views
Driveshaft ID Chart
Engine Torques Specs
Fuel Baffle Chart
Gauge Information
Impeller Info Chart
Kit Info Chart
Mikuni Carb Specs
Mikuni Test Info
MPEM Ref & Prog.
MPEM Test Info
My Opinion on Oil…
Part Numbers List
Rotax Case ID
Rotax Engine Info
Sea Doo Models 1988-2010
Sea Doo Paint Codes
Seat Reference Chart
SD Spark Plug Info
029/358 VTS Module Test
Water Flooded 2 Stroke
Wear Ring Removal

Technical Info

Sea Doo Tool Rental!

www.JetBoating.net

Sea Doo Tips

To avoid expensive
electrical system damage
NEVER
jump start your ski
with a running vehicle!!

Change your pump oil
every 50 hours and
you’ll save money in
the long run !

Battery dying in your Trim
equipped 1995 up Sea Doo?
Disconnect your VTS unit.
If that fixes the problem
the module probably has
failed due to moisture.

Every time you have
your engine compartment
open, grab the motor and
give it a pull to make sure
your motor mounts are in
good shape. Broken mounts
can cause driveline and pipe
problems if not caught early!

Save money and time
by doing repairs yourself
instead of using a dealer!

The area above is always changing so check back often as links are added.

Gauge Information

I have quite a few older gauges in stock, so decided to compare them and note their similarities in wiring, size, mounting. With this info, you may be able to adapt a different gauge to replace your damaged/discontinued gauge. As of now, I’ve compared models up to 2000 and plan to add newer soon!

A note about the 1997 & up gauges… from the mid 90’s on, Sea Doo started making the electrical system & MPEM more complicated and started giving more info to the rider. Therefore, the LCD gauges do more and start to be harder to adapt to different models.
One more note…from looking at the wiring diagrams of most newer skis, most of the time the fuel, oil, tach, and speedo plug into the mpem and their respective sensors do as well. I would guess Sea Doo uses the MPEM as a junction point only and the related sensors could actually just be connected directly to the gauges if needed.

The following info is to help with choosing the right gauge for your ski. Always be careful when wiring a gauge not meant for the model you’re installing it on. Damage to expensive parts can result from wiring errors!


Notes on Fuel Gauges
From looking at most all gauges and also wiring diagrams for models 1990 through 1994 and all models except XP/GTX in 1995, I’ve seen they all use the same 8 wires and all have same colors that go to power, ground, fuel sender, oil level sender and power to tach/speedo.
The early gauges mounted with a “u” bracket then in 1993 switched to the threaded ring mounting. The main difference I noted when comparing most all of them was differing wire lengths.
The oil sensor is just an on/off switch and works the same on all years (to 95 checked so far). The fuel baffle outputs resistance from 0 ohm to approx 90 ohms on all years (to 95 checked so far). Therefore, any fuel gauge should be interchangeable on 1990-1995 (exc. 1995 XP & GTX LCD) with only possibly slight wire length mods and possibly terminal location in the 6 prong plug.

Notes on Speedometers
Most appear to use a 5 wire setup. Two wires receive power, two wires are power out to the next gauge in series, and the last goes to the speed sensor. Only difference may be mounting, wire length, and wire locations in the plugs. As far as I know, all read 0 to 60mph.
If a speedo has three wires, it still should work the same as the 5 wire, just doesn’t have power out to the next gauge.

Notes on Tachometers
Most older models appear to use a 3 wire setup. Two wires receive power from the fuel or LCD gauge and the third (YL/RD) goes to the magneto. Only difference may be mounting, wire length, and wire locations in the plugs. As far as I know, all read 0 to 8000rpm.
Most newer models use a 5 wire setup and are in series with the fuel and/or tach and/or speedo. Two wires receive power, two wires are power out to the next gauge in series, and the last goes to the magneto (or MPEM). On gauges with the same number of wires but different part numbers, the only difference may be gauge face, wire length, and wire locations in the plugs.

Notes on LCD Gauge (1995/1996 2” model)
From what I see, they all use the same sensors (fuel/oil/temp) as the non-LCD 1990-1996 models. All 1995/1996 LCD equipped skis are interchangeable and the gauge should also work properly on earlier non-LCD years if desired.

Notes on LCD Gauge (1996 up 3.25” models)
From what I see, most all use the same sensors (fuel/oil/temp/compass/air temp/etc.). The GTX uses a LCD with the most functions, so it should be compatible with other models. The only thing you might need to do is leave some plugs disconnected/capped for missing sensors. Also note that different LCD part numbers may have the wires in different positions on the plugs, so that would have to be corrected for your model. Also, the RFI skis appear to need a RFI LCD Gauge. I believe it monitors the fuel injection.


SeaDoo P/N Type Wires Wire Function Mount Size Fits
278000073 (NEW NO. 278001338)
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
THREADED
2.00
1994 SPX SPI
278000078
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
U BRACKET
2.00
1993 SPX GTX / 1994 XP GTX
278000173
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
U BRACKET
2.00
1991 XP / 1992 XP
278000257
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
U BRACKET
2.00
1992 GTX
278000271 (SAME AS 278000078)
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
U BRACKET
2.00
n/a
278000396 (SAME AS 278000078)
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
U BRACKET
2.00
1993 XP / 1994 XPI
278000496
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT SPX wire schematic
THREADED
2.00
1995 1996 1997 1998 GTS / 1997 1998 SPX
278000554
FUEL/OIL GAUGE
8
2 FUEL/2 OIL/2 POWER IN/2 POWER OUT
THREADED
2.00
1995 SPX SPI / 1996 SPI
278000745 (NEW NO. 278001162)
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER
THREADED
2.00
n/a
278000976
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER
THREADED
3.25
1997 1998 GS
278001035
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER wire schematic
THREADED
3.25
1997 1998 GTI
278001103
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER wire schematic
THREADED
3.25
1997 XP
278001162
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER
THREADED
2.00
n/a
278001263
FUEL/OIL GAUGE
4
2 POWER/2 TO MPEM wire schematic
THREADED
2.00
1998 XP LTD
278001338
FUEL/OIL GAUGE
6
2 FUEL/2 OIL/2 POWER IN wire schematic
THREADED
2.00
1999 GTS SPX / 2000 GTS / 2001 GTS (5551)
278001350
FUEL/OIL GAUGE
6
4 TO MPEM/2 POWER wire schematic
THREADED
3.25
1999-2001 GTI
278001365
FUEL/OIL GAUGE
4
2 POWER/2 TO MPEM
THREADED
3.25
1999-2001 GS
278001389
FUEL/OIL GAUGE
4
2 POWER/2 TO MPEM wire schematic
THREADED
2.00
1999 XP LTD / 2000-2002 XP
278001621
FUEL/OIL GAUGE
X
X
THREADED
X
2001 GTI (5522/5523) / 2002-2003 GTI LE
278001622
FUEL/OIL GAUGE
X
X
THREADED
X
2001 GTS (5520/5521) / 2002-2003 GTI
-
-
-
-
-
-
-
278000502
LCD INFO GAUGE
10
FUEL/OIL/BATT/TEMP
THREADED
2.00
1995 XP GTX / 1996 GTI SPX XP
278000684
LCD INFO GAUGE
X
X
THREADED
X
1995 XP800
278000817
LCD INFO GAUGE
24
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO wire schematic
THREADED
3.25
1996 GSX
278000841
LCD INFO GAUGE
22
RPM/TEMP/BATT/FUEL/OIL/MAINT/SPEEDO/AIR TEMP/COMPASS wire schematic
THREADED
3.25
1996 GTX
278001036
LCD INFO GAUGE
22
RPM/TEMP/BATT/FUEL/OIL/MAINT/SPEEDO/AIR TEMP/COMPASS wire schematic
THREADED
3.25
1997 GTX
278001050
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO wire schematic
THREADED
3.25
1997 GSI
278001050
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/AIR TEMP/COMPASS wire schematic
THREADED
3.25
1997 GSX
278001055
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/(AIR TEMP/COMPASS NOT USED) wire schematic
THREADED
3.25
1998 GSX LTD (MODEL 6625)
278001236
LCD INFO GAUGE
23
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE wire schematic
THREADED
3.25
1998 GTX LTD
278001244
LCD INFO GAUGE
26
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE/(VTS LOOPED) wire schematic
THREADED
3.25
1998 GTX RFI
278001258
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/AIR TEMP/COMPASS wire schematic
THREADED
3.25
1998 GSX LTD (MODEL 5629/5845)
278001352
LCD INFO GAUGE
17
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/MODE wire schematic
THREADED
3.25
1999 GSX RFI
278001360
LCD INFO GAUGE
17
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/AIR TEMP wire schematic
THREADED
3.25
1999 GSX LTD
278001370
LCD INFO GAUGE
23
RPM/TEMP/BATT/FUEL/OIL/MAINT/SPEEDO/AIR TEMP/COMPASS/MODE wire schematic
THREADED
3.25
1999 GTX LTD
278001434
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE/(VTS LOOPED) wire schematic
THREADED
3.25
1999 GTX RFI
278001471
LCD INFO GAUGE
17
RPM/TEMP/BATT/FUEL/OIL/MAINT/VTS/SPEEDO/AIR TEMP wire schematic
THREADED
3.25
2000-2001 RX
278001540
LCD INFO GAUGE
23
RPM/TEMP/BATT/FUEL/OIL/MAINT/SPEEDO/AIR TEMP/COMPASS/MODE wire schematic
THREADED
3.25
2000-2001 GTX
278001541
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE/(VTS LOOPED) wire schematic
THREADED
3.25
2000-2001 GTX RFI
278001542
LCD INFO GAUGE
17
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/MODE wire schematic
THREADED
3.25
2000-2001 GSX RFI
278001559
LCD INFO GAUGE
23
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE wire schematic
THREADED
3.25
2000-2001 GTX DI
278001561
LCD INFO GAUGE
25
RPM/TEMP/BATT/FUEL/OIL/(BOSCH)MAINT/VTS/SPEEDO/AIR TEMP/COMPASS/MODE/VTS wire schematic
THREADED
3.25
2001 RX DI
278001591
LCD INFO GAUGE
X
X
THREADED
3.25
4-TEC (OLD UPDATED IS 278001823 NEW NO. 278001959 )
278001591
LCD INFO GAUGE
X
X
THREADED
3.25
2002 GTX 4-TEC
278001624
LCD INFO GAUGE
X
X
THREADED
3.25
2002 GTX & GTX RFI
278001625
LCD INFO GAUGE
X
X
THREADED
3.25
2002 RX
278001626
LCD INFO GAUGE
X
X
THREADED
3.25
2002 RX DI
278001708
LCD INFO GAUGE
X
X
THREADED
3.25
2002-2003 GTX DI
278001799
LCD INFO GAUGE
X
X
THREADED
3.25
2003 GTI LE RFI
278001823
LCD INFO GAUGE
X
X
THREADED
3.25
2003 GTX 4-TEC & 4-TEC WAKE
278001825
LCD INFO GAUGE
X
X
THREADED
3.25
2003 RX DI
278001844
LCD INFO GAUGE
X
X
THREADED
3.25
2003 GTX 4-TEC LTD
278001882
LCD INFO GAUGE
X
X
THREADED
3.25
2003 XP DI
-
-
-
-
-
-
-
278000081
SPEEDO (60 mph)
5
SPEED SENSOR/GAUGE POWER
THREADED
2.00
1994 GTX SPEEDSTER
278000582
SPEEDOMETER
5
SPEED SENSOR/GAUGE POWER
THREADED
2.00
1995 GTX / 1996 GTI
278000742
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
2.00
NEW NO 278001163
IN 295500418 SPORTSTER SPEEDO KIT
278000848
SPEEDOMETER
6
2 WIRE POWER IN/ 1 TO SPEED/1 TO GND/2 WIRE POWER OUT
THREADED
3.25
1996 GTX
278000862
SPEEDOMETER
5
SPEED SENSOR/GAUGE POWER
THREADED
2.00
1996 XP
278000947
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
3.25
1997 GSX / 1998 GSX LTD (MODEL 5629/5845)
278001037
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
3.25
1997 GTX
278001071
SPEEDOMETER
3
1 TO MPEM (6' LONG)/2 GAUGE POWER
THREADED
3.25
1997 1998 GTI
278001104
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
3.25
1997 XP / 1998 XP LTD
278001163
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
2.00
IN 295500418 SPORTSTER SPEEDO KIT
278001238
SPEEDOMETER
5
2 WIRE POWER IN/1 TO SPEED/2 WIRE POWER OUT
THREADED
3.25
1998 GTX LTD
278001245
SPEEDOMETER
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1998 GTX RFI
278001333
SPEEDOMETER
3
1 TO MPEM (6' LONG)/2 GAUGE POWER
THREADED
3.25
1999-2000 GTI / 2001 GTI (5552)
278001340
SPEEDOMETER
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1999 XP LTD / 2000-2002 XP
278001359
SPEEDOMETER
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1999 GSX LTD & GTX LTD
278001359
SPEEDO (70 mph)
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT (appears identical to 278001435)
THREADED
3.25
1999 GSX LTD & GTX LTD / 2000 GTX & GTX DI LRV RX & RX DI / 2001 GTX & GTX DI LRV RX & RX DI / 2002 LRV DI
278001435
SPEEDO (70 mph)
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT (appears identical to 278001359)
THREADED
3.25
1999-2002 GTX RFI / 2002 GTX & GTX RFI
278001619
SPEEDOMETER
X
X
THREADED
X
2002 RX & RX DI
278001620
SPEEDOMETER
X
X
THREADED
X
2001 GTI (5522/5523) / 2002-2003 GTI LE
278001741
SPEEDO (70 mph)
5
2 WIRE POWER IN/1 TO MPEM/2 WIRE POWER OUT (appears identical to 278001435)
THREADED
3.25
2002 GTX DI
278001822
SPEEDOMETER
X
X
THREADED
X
2003 GTI LE RFI & RX DI & XP DI
278001865
SPEEDOMETER
X
X
THREADED
X
2003 GTX DI
278001947
SPEEDOMETER
X
X
THREADED
X
1998 GSX LTD (MODEL 6625)
-
-
-
-
-
-
-
278000080
TACHOMETER
3
2 WIRE POWER IN/1 WIRE TO MAGNETO (white face)
THREADED
2.00
n/a
278000162
TACHOMETER (7k rpm)
3
2 WIRE POWER IN/1 WIRE TO MAGNETO (black face)
U BRACKET
2.00
1992 XP
278000258
TACHOMETER
X
X
U BRACKET
2.00
1992 GTX
278000272
TACHOMETER
3
2 WIRE POWER IN/1 WIRE TO MAGNETO (white face)
U BRACKET
2.00
COMES IN 295500095 TACH KIT
278000359
TACHOMETER (8k rpm)
3
2 WIRE POWER IN/1 WIRE TO MAGNETO
THREADED
2.00
n/a
278000590
TACHOMETER
3
2 WIRE POWER IN/1 WIRE TO MAGNETO
THREADED
2.00
1995 XP SPEEDSTER
278000744
TACHOMETER (8k rpm)
3
2 WIRE POWER IN/1 WIRE TACH SIGNAL
THREADED
2.00
1996 SPEEDSTER CHALLENGER
278000818
TACHOMETER
X
X
THREADED
3.25
1996 GSX
278000847
TACHOMETER
X
X
THREADED
3.25
1996 GTX
278001051
TACHOMETER
5
2 WIRE POWER IN/1 WIRE TO INFO/2 WIRE POWER TAP
THREADED
3.25
1997 GTX
278001164
TACH (8k rpm)
3
2 WIRE POWER IN/1 WIRE TO MAGNETO
THREADED
2.00
n/a
278001230
TACHOMETER
5
2 WIRE POWER IN/1 WIRE TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1998 XP LTD
278001237
TACHOMETER
6
2 WIRE POWER IN/1 WIRE TO MPEM/1 WIRE TO INFO/2 WIRE POWER OUT
THREADED
3.25
1998 GTX LTD
278001246
TACHOMETER
6
2 WIRE POWER IN/1 WIRE TO MPEM/1 WIRE TO INFO/2 WIRE POWER OUT
THREADED
3.25
1998 GTX RFI
278001380
TACHOMETER
X
X
THREADED
X
2001 RXX
278001381
TACHOMETER
5
2 WIRE POWER IN/1 WIRE TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1999-2002 XP LTD
-
-
-
-
-
-
-
278000451
VTS GAUGE
6
2 WIRE POWER IN/2 WIRES TO VTS/2 WIRE POWER OUT
THREADED
2.00
1995 XP / 1996 SPX XP / 1997 1998 SPX / 1998 XP LTD
278000989
VTS GAUGE
6
2 WIRE POWER IN/2 WIRES TO MPEM/2 WIRE POWER OUT
THREADED
3.25
1997 XP
278001339
VTS GAUGE
6
2 WIRE POWER IN/2 WIRES TO VTS/2 WIRE POWER OUT
THREADED
3.25
1999 SPX & XP LTD / 2000-2002 XP
-
-
-
-
-
-
-
204470079
TACHOMETER
X
X
X
2.00
JETBOAT 1997 SPEEDSTER
204470391
FUEL/OIL GAUGE
X
X
X
X
JETBOAT
204470675
LCD INFO GAUGE
X
X
X
X
2002 LRV DI
204470823
FUEL GAUGE
6
PLUG ON GAUGE
U BRACKET
2.00
JETBOAT
204470825
TACHOMETER
6
PLUG ON GAUGE
U BRACKET
2.00
JETBOAT
204620176
LCD INFO GAUGE
X
X
X
X
2000-2001 LRV


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