OLD PARTS
Genuine Old Parts for Onan, Cummins & Fleetguard Diesel Engines
Find authentic old parts tailored for Onan, Cummins, and Fleetguard power engines. Our collection of genuine replacement components ensures your diesel equipment operates with maximum efficiency and durability.
Old Parts for Reliable Diesel Engine Maintenance
We offer a comprehensive range of authentic old parts, including core engine components, seals, filters, and more—all crafted to meet strict quality standards. Each part is designed to restore and maintain the optimal performance of your diesel engines.
- Genuine Quality: Certified original parts to guarantee compatibility and longevity.
- Wide Selection: Extensive inventory covering key Onan, Cummins, and Fleetguard models.
- Trusted Performance: Enhance engine reliability with parts engineered for power and endurance.
Why Choose Our Old Parts? We provide expert-vetted, genuine parts that ensure your diesel engines run smoother and last longer, backed by our commitment to quality and customer satisfaction.
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CUMMINS 5255221 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$10,222.09$9,337.88Cummins 5255221 - AFTERTREATMENT DEVICE MINS5255221 Explore the highest quality replacement part, the Cummins 5255221 - AFTERTREATMENT DEVICE, SKU MINS5255221, in our store. Make a smart choice and...$10,222.09$9,337.88 -
CUMMINS 5255186 COMPRESSOR WATER INLET TUBE Original OEM part
CUMMINS
$20.68$18.89Precision-engineered for optimal performance and compatibility Durable design ensures consistent coolant flow and engine protection Genuine Cummins OEM component crafted for seamless...$20.68$18.89 -
CUMMINS 5254492 HEAT SHIELD Original OEM part
CUMMINS
$643.40$587.75Protect your engine’s heart with unmatched Cummins precision Durable heat deflection for maximum engine safety Optimizes thermal management to extend component life 100% genuine Cummins OEM part for...$643.40$587.75 -
CUMMINS 5254491 HEAT SHIELD Original OEM part
CUMMINS
$654.82$598.17Engineered to safeguard your generator's core for unparalleled durability and safety Precision fit for maximizing heat dissipation and protecting sensitive components Manufactured as a genuine OEM...$654.82$598.17 -
CUMMINS 5254489 HEAT SHIELD Original OEM part
CUMMINS
$632.42$577.71Cummins 5254489 - HEAT SHIELD MINS5254489 Get the genuine and high-quality Cummins 5254489 - HEAT SHIELD at our store. With fast shipping, you can trust us to deliver this essential replacement part...$632.42$577.71 -
CUMMINS 5254488 HEAT SHIELD Original OEM part
CUMMINS
$727.73$664.78Cummins 5254488 - HEAT SHIELD MINS5254488 Explore our exclusive collection of original Cummins 5254488 - HEAT SHIELD, designed to seamlessly fit your outdoor equipment. Engineered to precision, this...$727.73$664.78 -
CUMMINS 5254487 HEAT SHIELD Original OEM part
CUMMINS
$747.13$682.50Cummins 5254487 - HEAT SHIELD MINS5254487 Find top-quality replacement parts like the 5254487 - HEAT SHIELD by Cummins at our store. With a commitment to authenticity, we provide the best price for...$747.13$682.50 -
CUMMINS 5254350 FILTER SUPPORT Original OEM part
CUMMINS
$32.54$29.72Precision engineered durability for uncompromised power Robust filter support ensures optimum filtration and engine protection Certified Cummins OEM part guaranteeing seamless compatibility CUMMINS...$32.54$29.72 -
CUMMINS 5253819 TUBE BRACE Original OEM part
CUMMINS
$64.89$59.28Cummins 5253819 - TUBE BRACE MINS5253819 When it comes to finding the original 5253819 - TUBE BRACE by Cummins, our store is the top choice for quality and reliability. We take pride in offering...$64.89$59.28 -
CUMMINS 5253549 SOLENOID VALVE Original OEM part
CUMMINS
$327.38$299.06Precision engineered for unwavering power delivery Critical control of fuel flow ensures optimal engine responsiveness Durability designed to withstand demanding operational conditions Certified OEM...$327.38$299.06 -
ONAN 5250736 5 GALLON WHITE CLOUD PAINT Original ONAN/CUMMINS OEM part
ONAN
$353.67$323.08Engineered Excellence for Lasting Protection Durable, high-quality White Cloud paint formulated specifically for ONAN generators Ensures superior corrosion resistance and color consistency on...$353.67$323.08 -
ONAN 524082101 SILICONE SEALANT Original ONAN/CUMMINS OEM part
ONAN
$91.67$83.74Cummins SILICONE SEALANT 524-0821-01 Our store is the ultimate destination for the genuine SILICONE SEALANT by Cummins, SKU 524-0821-01. Crafted with high-grade materials, this sealant ensures a...$91.67$83.74 -
ONAN 5201143 65 MM WOUND EXCITER ROTOR Original ONAN/CUMMINS OEM part
ONAN
$1,094.19$999.55Engineered for Excellence: Delivering precision wound design to ensure optimal generator functionality under all conditions. Durability that Endures: Manufactured to withstand demanding environments...$1,094.19$999.55 -
ONAN 52010747 UPPER HALF COVER ADAPTOR Original ONAN/CUMMINS OEM part
ONAN
$103.98$94.99Cummins UPPER HALF COVER ADAPTOR 520-10747 Find the perfect Upper Half Cover Adaptor with SKU 520-10747 from Cummins at our store. Our selection of original replacement parts ensures high quality...$103.98$94.99 -
ONAN 52010276 FRAME 5 NEUTRAL LINKAGE Original ONAN/CUMMINS OEM part
ONAN
$202.40$184.90Precision craftsmanship for seamless power control Robust design built to withstand demanding generator operation Guaranteed OEM quality from Onan, a trusted Cummins division ONAN 520-10276 FRAME 5...$202.40$184.90 -
ONAN 52010275 FRAME 5 STAR LINKAGE Original ONAN/CUMMINS OEM part
ONAN
$279.12$254.97Dependable precision engineered linkage for consistent generator operation Durable construction ensures long-lasting mechanical stability Guaranteed Genuine OEM ONAN part assuring perfect...$279.12$254.97 -
ONAN 513782 2228_280 BOLT ON BAFFLE Original ONAN/CUMMINS OEM part
ONAN
$1,983.47$1,811.90Dependable performance engineered for your ONAN generator’s best operation Durable bolt-on design ensures secure installation and long-term stability Precision manufactured as a genuine OEM...$1,983.47$1,811.90 -
ONAN 50675 CARRIER RECTIFIER WITH BI Original ONAN/CUMMINS OEM part
ONAN
$14,508.68$13,253.68Precision engineered to power your system without compromise Efficient electrical conversion for stable generator output Durable construction ensures extended service life under demanding...$14,508.68$13,253.68 -
ONAN 5052392 ADAPTER PIPE M33 X 2 X 1 Original ONAN/CUMMINS OEM part
ONAN
$338.74$309.44Precision engineered to sustain your power’s flow, ensuring your generator operates at its best. Durable construction designed to withstand demanding conditions for long-term service life. Boost...$338.74$309.44 -
ONAN 50476 RECT CARR WITH 6X DD171N1 Original ONAN/CUMMINS OEM part
ONAN
$13,392.70$12,234.24Cummins RECT CARR WITH 6X DD171N1 50476 Find original replacement parts like the RECT CARR WITH 6X DD171N1 by Cummins SKU 50476 at our store. Our wide selection ensures your outdoor equipment's...$13,392.70$12,234.24 -
CUMMINS 5045 FLYWHEEL RING GEAR Original OEM part
CUMMINS
$1,125.09$1,027.77Precision engineered to uphold Cummins' legacy of unmatched reliability. Robust construction ensures exceptional durability under high torque loads. Essential for smooth engine starting and optimal...$1,125.09$1,027.77 -
ONAN 504064 OUTLET DRILLED PLATE Original ONAN/CUMMINS OEM part
ONAN
$894.80$817.40Cummins OUTLET DRILLED PLATE 504064 Step up your outdoor equipment game with the original "OUTLET DRILLED PLATE" by Cummins, SKU: 504064. Our store is your go-to destination for genuine replacement...$894.80$817.40 -
CUMMINS 503791 ENGINE HEATER Original OEM part
CUMMINS
$336.73$307.60Experience unmatched engine warmth and reliability with Cummins precision engineering Efficient pre-heating reduces engine wear and eases cold starts Durable design ensures consistent performance in...$336.73$307.60 -
ONAN 503229310 COOLANT HOSE Original ONAN/CUMMINS OEM part
ONAN
$101.34$92.57Precision-engineered for flawless cooling system integrity Resilient construction to withstand high temperatures and pressure Guaranteed genuine ONAN OEM part for exact compatibility and...$101.34$92.57 -
ONAN 503189501 AIR FILTER HOSE Original ONAN/CUMMINS OEM part
ONAN
$59.16$54.04Engineered to sustain peak engine breathing and filtration efficiency Crafted with durable materials for extended service life under harsh operating conditions Original Equipment Manufacturer (OEM)...$59.16$54.04 -
ONAN 5021712 CAP PLUG Original ONAN/CUMMINS OEM part
ONAN
$16.89$15.43Precision-engineered reliability for your power system’s essential needs Durable design ensures long-lasting protection against contaminants OEM quality guarantees seamless fit and adherence to...$16.89$15.43 -
CUMMINS 501253 ALTERNATOR PULLEY Original OEM part
CUMMINS
$112.86$103.10Precision engineered for uncompromising power delivery Ensures optimal alternator alignment and belt tension Durable construction designed to withstand rigorous engine demands Authentic Cummins OEM...$112.86$103.10 -
CUMMINS 501085 THERMOSTAT HOUSING Original OEM part
CUMMINS
$687.63$628.15Precision engineered for enduring performance and seamless integration Maximizes engine cooling efficiency, safeguarding engine integrity Manufactured as a 100% genuine OEM Cummins...$687.63$628.15 -
ONAN 5010813 RETURN FUEL LINE Original ONAN/CUMMINS OEM part
ONAN
$2,060.60$1,882.36Cummins RETURN FUEL LINE 501-0813 Find the top-quality "RETURN FUEL LINE" with SKU "501-0813" from the trusted brand Cummins at our store. We assure you authentic parts for your lawn mower and...$2,060.60$1,882.36 -
ONAN 5010027 48 IN FLEXIBLE FUEL WATER LINE Original ONAN/CUMMINS OEM part
ONAN
$32.70$29.88Trusted Precision from Cummins Onan - Quality That Powers Your Reliability Robust Construction for Long-Lasting Fuel System Integrity Ensures Efficient Separation of Fuel and Water for Engine...$32.70$29.88 -
CUMMINS 500184 CABLE Original OEM part
CUMMINS
$59.50$54.36Unmatched durability designed for critical power systems Precision-engineered for flawless connectivity and signal integrity 100% Genuine OEM component built to exact Cummins specifications CUMMINS...$59.50$54.36 -
CUMMINS 4999115 ORING ADAPTER Original OEM part
CUMMINS
$836.53$764.17Engineered Precision, Dependable Power Robust sealing capability ensures leak-free operation under demanding conditions. Durable materials designed to maintain integrity over extended service...$836.53$764.17 -
CUMMINS 4999099 FUEL CONTROL VALVE BRACKET Original OEM part
CUMMINS
$1,238.80$1,131.65Precision crafted for unmatched fuel system stability Engineered to uphold optimal fuel control valve alignment Durability designed to withstand demanding operational conditions 100% genuine OEM...$1,238.80$1,131.65 -
CUMMINS 4998844 WATER TRANSFER TUBE Original OEM part
CUMMINS
$631.90$577.25Precision engineered to deliver uncompromised cooling efficiency Durable construction withstands demanding engine environments Crafted as an authentic Cummins OEM component for guaranteed...$631.90$577.25 -
CUMMINS 4998832 PRESSURE SENSING TUBE Original OEM part
CUMMINS
$447.75$409.02Engineered for Precision: Experience unmatched pressure accuracy with this specifically designed sensing tube. Durability Matters: Constructed to endure rigorous engine conditions and extend...$447.75$409.02 -
CUMMINS 4998830 PRESSURE SENSING TUBE Original OEM part
CUMMINS
$402.09$367.31Engineered for precision and durability under demanding conditions Ensures accurate pressure sensing critical to engine efficiency Direct OEM replacement from Cummins for guaranteed...$402.09$367.31 -
CUMMINS 4998736 FUEL TRANSFER TUBE Original OEM part
CUMMINS
$279.00$254.87Precision engineered for uncompromised fuel flow integrity Robust construction guarantees durability under demanding conditions Manufactured exclusively as a genuine OEM component by CUMMINS for...$279.00$254.87 -
CUMMINS 4998725 PRESSURE REGULATOR VALVE Original OEM part
CUMMINS
$14,057.44$12,841.47Precision engineered for uncompromising engine control and efficiency Maintains consistent fuel pressure to enhance power output and minimize emissions Durable design ensures extended service life...$14,057.44$12,841.47 -
CUMMINS 4998591 CONNECTION BRACKET Original OEM part
CUMMINS
$1,328.24$1,213.35Engineered to uphold Cummins’ legacy of precision and reliability Robust construction designed to sustain critical power system connections Optimizes powertrain alignment reducing vibration and...$1,328.24$1,213.35 -
CUMMINS 4998585 FILTER BRACKET Original OEM part
CUMMINS
$3,391.68$3,098.30Cummins 4998585 - FILTER BRACKET MINS4998585 Discover the genuine quality of Cummins with the 4998585 - FILTER BRACKET, SKU MINS4998585. Our store proudly offers original parts ensuring precision...$3,391.68$3,098.30