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MTU / Katolight – A.S.A.P. Generator Parts

We stock many popular repair parts for MTU (formerly Katolight) generator sets such as voltage regulators, control boards, block heaters, maintenance parts.

Although our stock reflects common parts such as voltage regulators, control boards, block heaters, maintenance parts, we can order other less-common items such as circuit breakers, stators, rotors, radiators, etc.


Contact us
with your generator model and serial number and mention the specific parts you need looked up / quoted.

KASSEC Engine Control replaces Katolight / MTU 90353 and 90354

KASSEC Engine Control replaces Katolight / MTU 90353 and 90354

Part #: 90353-54
$379.95
NOW available to ship! Improved Control Board replaces both KASSEC 12V and 24V models with one board! Click here for product manual.   Design enhancements and improved features: LED indicators ... more info
Katolight / MTU 103046 Sender, Low Level, 94313 and 3G8579-2

Katolight / MTU 103046 Sender, Low Level, 94313 and 3G8579-2

Part #: 103046
MTU discontinued the103046 in favor of a new #,  X00A69900008 Shown Here .  Also the OEM that supplied it has apparently discontinued it as well.  Please order the X00A69900008... more info
This part is obsolete and superseded byClick here for possible replacement
Katolight 77166 / MTU SUA77166, Air filter

Katolight 77166 / MTU SUA77166, Air filter

Part #: SUA77166
$74.61
This is an MTU "genuine part" Original # 77166, new # SUA77166 more info
Katolight SUA77958, 3 LED Hertz Indicator for PTO Gens

Katolight SUA77958, 3 LED Hertz Indicator for PTO Gens

Part #: SUA77958
$275.00
MTU SUA77958 Hertz Meter, replaces Katolight 77958 speed indicator used on PTO generators   more info
MTU # 90354 Control Board, Kassec, replaces Katolight 90154

MTU # 90354 Control Board, Kassec, replaces Katolight 90154

Part #: SUA90354
$1,056.75
 This is the latest 24 Volt board to replace old Katolight # 90154 more info
MTU # SUA77622, SENDER, OIL PRESSURE, Katolight 77622MTU # SUA77622, SENDER, OIL PRESSURE, Katolight 77622

MTU # SUA77622, SENDER, OIL PRESSURE, Katolight 77622

Part #: SUA77622
$120.71
0-100 PSI SEVERE DUTY Sender, Oil Replaces Katolight 77622 more info
MTU Check Valve SUA105647, Katolight 105647, 1/2" NPT

MTU Check Valve SUA105647, Katolight 105647, 1/2" NPT

Part #: SUA105647
$49.03
MTU SUA105647 CHECK VALVE, FUEL 1/2" FNPT NICKEL more info
MTU Control Board, Kassec, replaces Katolight 90353 / 90351

MTU Control Board, Kassec, replaces Katolight 90353 / 90351

Part #: SUA106293
$847.57
 This is the latest genuine  MTU 12 Volt board to replace the following Katolight / MTU Boards: 90153 90253 90351 90353 106293 You can now use our aftermarket replacement with improved... more info
MTU SUA79002 - SWITCH PRESSURE 15PSI 10A SPDT STD SHUTD

MTU SUA79002 - SWITCH PRESSURE 15PSI 10A SPDT STD SHUTD

Part #: SUA79002
$48.00
Would also have Nason # SM-2C-15F/QC472 SM-2C-15F / QC472 more info
Replacement for MTU #X00A69900008 GEMS CAP 300

Replacement for MTU #X00A69900008 GEMS CAP 300

Part #: X00A69900008-A
Exact replacement for MTU X00A69900008, GEMS 258231 & 255859 Dry Sink 10 Second Delay / Supply: 9 - 32VDC  / Output: 30mA MAX Click here for detailed instructions when used on Katolight or... more info
We are unable to get these currently due to a supplier issue. Please see this alternative:Click here for possible replacement
S87/213, Sensor Water Level 1/4" NPT w/ 5 Second Delay, 9-36VDC

S87/213, Sensor Water Level 1/4" NPT w/ 5 Second Delay, 9-36VDC

Part #: S87/213
$119.38
S87/213, Sensor Water Level 1/4" NPT w/ 5 Second Delay, 9-36VDC Spec Sheet Suitable replacement for:  X00A69900003 X00A69900008 X00A69900008-A more info
Speed Switch, Katolight 35083, 35024 MTU 83402 (SM124)

Speed Switch, Katolight 35083, 35024 MTU 83402 (SM124)

Part #: 800317
$278.56
This is a overspeed switch to shutdown your generator on either 66hz or 71hz (selectable). Its senses the frequency off of 120VAC generator power. Appears to be powered by 12v or 24v battery supply. ... more info
SUA45973 - Sender, Temperature - MTU

SUA45973 - Sender, Temperature - MTU

Part #: SUA45973
$50.05
100-230 DEG F 3/8" NPT more info
SUA71170, Tank Coolant MTU

SUA71170, Tank Coolant MTU

Part #: SUA71170
$51.16
Tank Coolant Plastic Universal more info
SUA77622-A Sender Oil Pressure, 0-100PSI Severe Duty

SUA77622-A Sender Oil Pressure, 0-100PSI Severe Duty

Part #: SUA77622-A
$86.33
SUA77622-A Sender Oil Pressure, 0-100PSI Severe Duty more info
SUA79001, SWITCH TEMPERATURE MTU

SUA79001, SWITCH TEMPERATURE MTU

Part #: SUA79001
$49.06
215F 6A 0 3/8NPT STD more info
SUA80329 - Fuel Pressure Switch - MTU

SUA80329 - Fuel Pressure Switch - MTU

Part #: SUA80329
$253.30
SWITCH, PRESSURE 1/2psi. 4A SPST FUEL SW. more info
SUA86608 - (CEM-2020) BOARD, RELAY

SUA86608 - (CEM-2020) BOARD, RELAY

Part #: SUA86608
$1,230.55
12/24V 24 RELAY SPDT more info
Switch, MTU SUA79003, Katolight 79003, SM-2C-20F/QC473

Switch, MTU SUA79003, Katolight 79003, SM-2C-20F/QC473

Part #: SUA79003
$123.42
This is a Nason SM-2C-20F/QC473 SWITCH, PRESSURE 20PSI 10A SPDT STD Sold by MTU as part # SUA79003 - Formerly Katolight 79003 Katolight and MTU typically used this as a pre-alarm warning switch. more info
X00A69900003 KATOLIGHT LOW WATER LEVEL SENDER

X00A69900003 KATOLIGHT LOW WATER LEVEL SENDER

Part #: X00A69900003
$195.49
Replaces Katolight / MTU Sender, Low Level, 94313 And 3G8579-2; and 103046 Notice: This sensor does not have built-in time-delay like the like part # 103046 Otherwise, if you... more info
X00A69900008 - Sensor, Low Coolant level - MTU

X00A69900008 - Sensor, Low Coolant level - MTU

Part #: X00A69900008
Exact replacement for GEMS 255859 Click here for detailed instructions.   We sell an exact, direct aftermarket replacement: X00A69900008-A more info
These are currently out of stock. See recommended replacement here:Click here for possible replacement