New Parts
New Parts for Onan, Cummins, and Fleetguard Diesel Engines
Upgrade and maintain your diesel engines with our extensive selection of genuine new parts. Crafted to meet the highest standards, these replacement components ensure optimal engine performance and durability for Onan, Cummins, and Fleetguard power engines.
New Genuine Parts - Reliable, Durable, and Engineered for Excellence
Our collection features a wide range of authentic new parts including filters, seals, gaskets, and fuel system components tailored specifically for diesel engines. Each part undergoes strict quality control to guarantee compatibility and longevity.
- Authentic Replacement: Genuine parts for Onan, Cummins, and Fleetguard engines to maintain factory specifications.
 - Engineered Reliability: Designed to withstand rigorous operating conditions and extend engine life.
 - Wide Selection: Comprehensive inventory ensuring easy find and fit for your diesel engine needs.
 
Enhance your diesel engine’s performance with trusted new parts that deliver precision and reliability.
Why Choose Our New Parts?
We offer genuine, expertly sourced parts with unmatched quality and support, ensuring your diesel engines run efficiently and reliably every time.
- Product
 - Qty in Cart
 - Quantity
 - Price
 - Subtotal
 
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            CUMMINS 4395022 - FILTER COMPRESSED AIR - Original OEM part
CUMMINS
$7.17$6.63ONAN 4395022 - FILTER COMPRESSED AIR. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$7.17$6.63 - 
            
            CUMMINS 4394739 - CONNECTOR QCK DISCONNECT - Original OEM part
CUMMINS
$4.27$3.95ONAN 4394739 - CONNECTOR QCK DISCONNECT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$4.27$3.95 - 
            
            CUMMINS 4394447 - SCREW HEX FLANGE HEAD CAP - Original OEM part
CUMMINS
$22.35$20.63ONAN 4394447 - SCREW HEX FLANGE HEAD CAP. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$22.35$20.63 - 
            
            CUMMINS 4394309 - MODULE INLET CATALYST - Original OEM part
CUMMINS
$2,430.74$2,242.37ONAN 4394309 - MODULE INLET CATALYST. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$2,430.74$2,242.37 - 
            
            CUMMINS 4394207 - DEVICE AFTERTREATMENT - Original OEM part
CUMMINS
$4,728.20$4,361.77ONAN 4394207 - DEVICE AFTERTREATMENT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$4,728.20$4,361.77 - 
            
            CUMMINS 4394139 - CLAMP T BOLT - Original OEM part
CUMMINS
$86.08$79.42ONAN 4394139 - CLAMP T BOLT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$86.08$79.42 - 
            
            CUMMINS 4393950 - TUBE AIR - Original OEM part
CUMMINS
$231.42$213.49ONAN 4393950 - TUBE AIR. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$231.42$213.49 - 
            
            CUMMINS 4393759 - SEAL O RING - Original OEM part
CUMMINS
$3.23$2.99ONAN 4393759 - SEAL O RING. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$3.23$2.99 - 
            
            CUMMINS 4393393 - REGULATOR FUEL PRESSURE - Original OEM part
CUMMINS
$4,488.68$4,140.82ONAN 4393393 - REGULATOR FUEL PRESSURE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$4,488.68$4,140.82 - 
            
            CUMMINS 4390559 - TUBE BREATHER - Original OEM part
CUMMINS
$2,926.71$2,699.90ONAN 4390559 - TUBE BREATHER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$2,926.71$2,699.90 - 
            
            CUMMINS 4390527 - TUBE BREATHER - Original OEM part
CUMMINS
$1,793.60$1,654.60ONAN 4390527 - TUBE BREATHER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$1,793.60$1,654.60 - 
            
            CUMMINS 4389340 - PIN PISTON - Original OEM part
CUMMINS
$132.60$122.33ONAN 4389340 - PIN PISTON. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$132.60$122.33 - 
            
            CUMMINS 4389314 - BUSHING CAMSHAFT - Original OEM part
CUMMINS
$5.70$5.26ONAN 4389314 - BUSHING CAMSHAFT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$5.70$5.26 - 
            
            CUMMINS 4389313 - BUSHING CAMSHAFT - Original OEM part
CUMMINS
$5.49$5.08ONAN 4389313 - BUSHING CAMSHAFT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$5.49$5.08 - 
            
            CUMMINS 4388518 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$7,889.72$7,278.27ONAN 4388518 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$7,889.72$7,278.27 - 
            
            CUMMINS 4387670 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$9,028.83$8,329.10ONAN 4387670 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$9,028.83$8,329.10 - 
            
            CUMMINS 4387503 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$11,757.54$10,846.34ONAN 4387503 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$11,757.54$10,846.34 - 
            
            CUMMINS 4387465 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$5,185.57$4,783.70ONAN 4387465 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$5,185.57$4,783.70 - 
            
            CUMMINS 4384360 - INJECTOR - Original OEM part
CUMMINS
$7,801.15$7,196.57ONAN 4384360 - INJECTOR. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$7,801.15$7,196.57 - 
            
            CUMMINS 4382828 - CONNECTION ADAPTER - Original OEM part
CUMMINS
$2,925.76$2,699.02ONAN 4382828 - CONNECTION ADAPTER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$2,925.76$2,699.02 - 
            
            CUMMINS 4382282 - BRACKET RETAINING BRACE - Original OEM part
CUMMINS
$592.68$546.76ONAN 4382282 - BRACKET RETAINING BRACE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$592.68$546.76 - 
            
            CUMMINS 4382279 - TUBE WATER TRANSFER - Original OEM part
CUMMINS
$121.49$112.09ONAN 4382279 - TUBE WATER TRANSFER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$121.49$112.09 - 
            
            CUMMINS 4382256 - BRACE TUBE - Original OEM part
CUMMINS
$54.80$50.56ONAN 4382256 - BRACE TUBE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$54.80$50.56 - 
            
            CUMMINS 4381992 - HEAD LUB OIL FILTER - Original OEM part
CUMMINS
$5,685.01$5,244.43ONAN 4381992 - HEAD LUB OIL FILTER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$5,685.01$5,244.43 - 
            
            CUMMINS 4381886 - BRACKET RETAINING BRACE - Original OEM part
CUMMINS
$31.14$28.74ONAN 4381886 - BRACKET RETAINING BRACE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$31.14$28.74 - 
            
            CUMMINS 4380378 - HOUSING FLYWHEEL - Original OEM part
CUMMINS
$14,738.89$13,596.64ONAN 4380378 - HOUSING FLYWHEEL. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$14,738.89$13,596.64 - 
            
            CUMMINS 4380060 - SUPPORT AIR COMPRESSOR - Original OEM part
CUMMINS
$3,938.93$3,633.67ONAN 4380060 - SUPPORT AIR COMPRESSOR. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$3,938.93$3,633.67 - 
            
            CUMMINS 4379719 - CONNECTION EXH TRANSFER - Original OEM part
CUMMINS
$6,139.59$5,663.79ONAN 4379719 - CONNECTION EXH TRANSFER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$6,139.59$5,663.79 - 
            
            CUMMINS 4379692 - HOSE FLEXIBLE - Original OEM part
CUMMINS
$1,439.49$1,327.94ONAN 4379692 - HOSE FLEXIBLE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$1,439.49$1,327.94 - 
            
            CUMMINS 4377804 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$9,464.69$8,731.19ONAN 4377804 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$9,464.69$8,731.19 - 
            
            CUMMINS 4377795 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$15,933.83$14,698.97ONAN 4377795 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$15,933.83$14,698.97 - 
            
            CUMMINS 4377785 - DEVICE AFTERTREATME - Original OEM part
CUMMINS
$15,933.83$14,698.97ONAN 4377785 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$15,933.83$14,698.97 - 
            
            CUMMINS 4377780 - DEVICE AFTERTREATMENT - Original OEM part
CUMMINS
$19,215.85$17,726.63ONAN 4377780 - DEVICE AFTERTREATMENT. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$19,215.85$17,726.63 - 
            
            CUMMINS 4377581 - CAP FILLER - Original OEM part
CUMMINS
$26.97$24.89ONAN 4377581 - CAP FILLER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$26.97$24.89 - 
            
            ONAN 4377125 - DEVICE AFTERTREATME - Original OEM part
ONAN
$10,962.06$10,112.51ONAN 4377125 - DEVICE AFTERTREATME. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$10,962.06$10,112.51 - 
            
            CUMMINS 4376472 - KIT LINER - Original OEM part
CUMMINS
$964.70$889.94ONAN 4376472 - KIT LINER. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$964.70$889.94 - 
            
            CUMMINS 4376450 - KIT SERVICE - Original OEM part
CUMMINS
$6,294.50$5,806.68ONAN 4376450 - KIT SERVICE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$6,294.50$5,806.68 - 
            
            CUMMINS 4376272 - KIT TUBE - Original OEM part
CUMMINS
$2,220.62$2,048.53ONAN 4376272 - KIT TUBE. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$2,220.62$2,048.53 - 
            
            CUMMINS 4372871 - HOSE MOLDED - Original OEM part
CUMMINS
$107.80$99.45ONAN 4372871 - HOSE MOLDED. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$107.80$99.45 - 
            
            CUMMINS 4371896 - CONNECTION EXHAUST OUTLET - Original OEM part
CUMMINS
$2,435.44$2,246.70ONAN 4371896 - CONNECTION EXHAUST OUTLET. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us.$2,435.44$2,246.70