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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ONAN C420000402 24 VOLT 70 AMP RELAY Original ONAN/CUMMINS OEM part
ONAN
$66.69$60.93Powering your peace of mind with authentic ONAN precision Robust 70 Amp electrical capacity for optimal relay response Designed for seamless integration in 24 Volt Onan generator systems 100%...$66.69$60.93 -
ONAN 405732502 ACCESS PANEL Original ONAN/CUMMINS OEM part
ONAN
$30.52$27.88Engineered for reliability: Keep your generator protected with precision-crafted design. Durable construction: Built to withstand demanding environments and daily wear. Genuine OEM quality: Directly...$30.52$27.88 -
ONAN 503220202 AIR INTAKE HOSE Original ONAN/CUMMINS OEM part
ONAN
$3.20$2.93Engineered precision for seamless airflow management. Durable construction ensures consistent performance over time. 100% Genuine OEM part from Onan, guaranteeing optimal compatibility and...$3.20$2.93 -
ONAN 5020613 HOSE CONNECTOR Original ONAN/CUMMINS OEM part
ONAN
$47.57$43.46Cummins HOSE CONNECTOR 502-0613 For those seeking exceptional quality and a perfect fit, look no further than the Cummins HOSE CONNECTOR (SKU: 502-0613). Our store offers this genuine replacement...$47.57$43.46 -
ONAN 3061961 ARC CHUTE Original ONAN/CUMMINS OEM part
ONAN
$6.57$6.00Engineered Excellence for Enduring Power Precisely Designed Arc Control for Safety and Efficiency Durable Construction to Withstand Demanding Generator Conditions Certified Genuine OEM Part from...$6.57$6.00 -
ONAN 5031646 BREATHER HOSE Original ONAN/CUMMINS OEM part
ONAN
$4.50$4.12Engineered to maintain pristine engine ventilation and optimal performance under all conditions. Precision-crafted hose ensuring durability and a perfect fit for your Onan generator. Designed to...$4.50$4.12 -
ONAN 338472503 FUEL SELECT PLUG HARNESS Original ONAN/CUMMINS OEM part
ONAN
$33.87$30.94Precision-engineered connectivity for flawless fuel system control Enhances generator responsiveness and sustains fuel efficiency Certified OEM component designed and manufactured by ONAN for...$33.87$30.94 -
ONAN 323164403 PLUG AND CAP HOUSING Original ONAN/CUMMINS OEM part
ONAN
$41.63$38.03Cummins PLUG AND CAP HOUSING 323-1644-03 Discover the genuine Cummins PLUG AND CAP HOUSING, SKU 323-1644-03, crafted to perfection for seamless integration with your outdoor equipment. Our store...$41.63$38.03 -
ONAN 319502702 CONTROL COVER Original ONAN/CUMMINS OEM part
ONAN
$12.54$11.45Precision engineered for true ONAN dependability. Robust control cover that safeguards vital generator components. Designed to maintain optimal engine protection and efficiency. 100% genuine OEM...$12.54$11.45 -
ONAN 5052196 3/818 NPT PIPE ADAPTER Original ONAN/CUMMINS OEM part
ONAN
$12.50$11.42Precision-engineered durability: Built to meet rigorous Cummins/Onan specifications for long-lasting, leak-free connections. Reliable sealing solution: Maintains system integrity under varying...$12.50$11.42 -
ONAN A034U944 FUSE Original ONAN/CUMMINS OEM part
ONAN
$19.37$17.70Dependable power protection crafted for your ONAN generator’s safety and efficiency. Precision-engineered fuse designed to ensure uninterrupted performance and protect critical components. Durable...$19.37$17.70 -
ONAN 4059815 INSULATION SOUND TOP COVER Original ONAN/CUMMINS OEM part
ONAN
$11.67$10.66Cummins INSULATION SOUND TOP COVER 405-9815 Find the perfect fit for your Cummins engine with the original INSULATION SOUND TOP COVER available at our store. Crafted with precision and quality...$11.67$10.66 -
ONAN J03320118 TERMINAL BLOCK 63A WDU35 Original ONAN/CUMMINS OEM part
ONAN
$11.43$10.44Cummins TERMINAL BLOCK 63A WDU35 J0332-0118 Find the original TERMINAL BLOCK 63A WDU35 by Cummins, SKU J0332-0118, at our store. Our high-quality part ensures optimal performance of your outdoor...$11.43$10.44 -
ONAN 405685302 ENCLOSURE INSULATION Original ONAN/CUMMINS OEM part
ONAN
$9.77$8.93Engineered for Excellence: Experience dependable thermal insulation that safeguards your generator’s internal components. Optimized Performance: Reduces noise and enhances fuel efficiency for...$9.77$8.93 -
ONAN 155294302 TUBE SUPPORT BRACKET Original ONAN/CUMMINS OEM part
ONAN
$14.84$13.56Cummins TUBE SUPPORT BRACKET 155-2943-02 Find the genuine Cummins TUBE SUPPORT BRACKET with SKU 155-2943-02 in our store. We pride ourselves on offering original replacement parts at the best prices...$14.84$13.56 -
ONAN 155267701 RESONATOR GASKET Original ONAN/CUMMINS OEM part
ONAN
$26.68$24.38Cummins RESONATOR GASKET 155-2677-01 Discover the authentic Cummins RESONATOR GASKET with SKU 155-2677-01 at our store. Our commitment to quality ensures that you receive the best original...$26.68$24.38 -
ONAN A040P890 GASKET Original ONAN/CUMMINS OEM part
ONAN
$7.80$7.13Engineered to deliver unmatched sealing precision for your Onan generator system Durable, high-quality material enhances engine reliability under demanding conditions OEM part crafted by Onan...$7.80$7.13 -
ONAN 3384574 SWITCH HARNESS Original ONAN/CUMMINS OEM part
ONAN
$19.39$17.72Cummins SWITCH HARNESS 338-4574 Explore our store for the authentic Cummins SWITCH HARNESS with SKU 338-4574 - crafted with precision to ensure optimal performance and longevity for your outdoor...$19.39$17.72 -
ONAN 1810055 ROTOR BALANCE WEIGHT Original ONAN/CUMMINS OEM part
ONAN
$11.02$10.06Cummins ROTOR BALANCE WEIGHT 181-0055 Elevate your outdoor equipment's performance with the Cummins ROTOR BALANCE WEIGHT (SKU: 181-0055). Our store offers this original part at the best price,...$11.02$10.06 -
ONAN A035C568 OIL DIPSTICK WASHER Original ONAN/CUMMINS OEM part
ONAN
$12.00$10.97Cummins OIL DIPSTICK WASHER A035C568 Find the perfect fit for your Cummins engine with the original OIL DIPSTICK WASHER. Our store offers the genuine A035C568 washer, ensuring a snug and secure fit...$12.00$10.97 -
ONAN 319571007 TOP CIRCUIT BREAKER COVER Original ONAN/CUMMINS OEM part
ONAN
$3.46$3.16Cummins TOP CIRCUIT BREAKER COVER 319-5710-07 Discover the genuine Cummins 319-5710-07 TOP CIRCUIT BREAKER COVER, ensuring optimal performance and durability for your outdoor equipment. With our...$3.46$3.16 -
ONAN 5032233 BREATHER HOSE Original ONAN/CUMMINS OEM part
ONAN
$37.52$34.27Engineered for excellence, crafted for endurance: trust the authentic ONAN quality in every connection. Precision fitment ensures seamless integration into your ONAN generator system. Constructed...$37.52$34.27 -
ONAN A040R058 OIL PICKUP Original ONAN/CUMMINS OEM part
ONAN
$21.85$19.96Cummins OIL PICKUP A040R058 Discover the authentic Cummins A040R058 OIL PICKUP at our store, the ultimate solution for your outdoor equipment needs. Designed with precision and reliability in mind,...$21.85$19.96 -
ONAN 4057389 GEN AIR INLET SEAL Original ONAN/CUMMINS OEM part
ONAN
$31.70$28.96Precision-engineered sealing for optimal engine airflow Durable construction helps maintain peak generator efficiency 100% OEM Cummins Onan quality ensures reliable compatibility and...$31.70$28.96 -
ONAN 5032294 OIL DRAIN HOSE Original ONAN/CUMMINS OEM part
ONAN
$7.19$6.57Cummins OIL DRAIN HOSE 503-2294 Find the original Oil Drain Hose by Cummins with SKU 503-2294 at our store, the perfect solution for your lawn mower and outdoor equipment. Made with high-quality...$7.19$6.57 -
ONAN 98658702 NUMBER LABEL KIT Original ONAN/CUMMINS OEM part
ONAN
$2.57$2.35Cummins NUMBER LABEL KIT 98-6587-02 Explore our exclusive Cummins NUMBER LABEL KIT (SKU: 98-6587-02) - the perfect solution for your outdoor equipment needs. At our store, we guarantee authentic...$2.57$2.35 -
ONAN A028W069 ELECTRICAL LEAD Original ONAN/CUMMINS OEM part
ONAN
$8.35$7.63Power your Onan system with confidence—precision-crafted for excellence Durable electrical lead engineered for optimal conductivity and long service life OEM-approved component to maintain peak...$8.35$7.63 -
ONAN 898131104 NYLON MESH SLEEVING Original ONAN/CUMMINS OEM part
ONAN
$10.77$9.84Cummins NYLON MESH SLEEVING 898-1311-04 Discover the authentic Cummins NYLON MESH SLEEVING, SKU 898-1311-04, exclusively available at our store. Engineered to provide superior protection and...$10.77$9.84 -
ONAN 4020144 RUBBER MOUNTING CUSHION Original ONAN/CUMMINS OEM part
ONAN
$20.97$19.16Cummins RUBBER MOUNTING CUSHION 4020144 Ensure the optimal performance of your equipment with the original Cummins RUBBER MOUNTING CUSHION (SKU: 4020144). Our store stands out as the top choice for...$20.97$19.16 -
ONAN 319649602 CIRCUIT BREAKER PANEL Original ONAN/CUMMINS OEM part
ONAN
$16.16$14.76Precision Engineered for Reliable Power Control Durable Circuit Protection Tailored for Onan Generators Authentic OEM Component Ensuring Perfect Compatibility ONAN 319-6496-02 CIRCUIT BREAKER...$16.16$14.76 -
ONAN A029S884 INFORMATION LABEL Original ONAN/CUMMINS OEM part
ONAN
$11.82$10.79Cummins INFORMATION LABEL A029S884 Discover the genuine Cummins A029S884 INFORMATION LABEL at our online store. Engineered to exact specifications, this replacement part is the ideal solution for...$11.82$10.79 -
ONAN A026H299 MOUNTING BRACKET Original ONAN/CUMMINS OEM part
ONAN
$10.00$9.14Cummins MOUNTING BRACKET A026H299 Elevate your outdoor equipment's performance with the genuine MOUNTING BRACKET (SKU: A026H299) by Cummins. Our store is your ultimate destination for authentic...$10.00$9.14 -
ONAN 3324144 END CAP TERMINAL BLOCK RAIL Original ONAN/CUMMINS OEM part
ONAN
$39.16$35.77Unlock unmatched durability and precision engineered compatibility for your ONAN generator systems. Robust terminal block design ensures secure electrical connections and reduces maintenance...$39.16$35.77 -
ONAN 1502401 GOVERNOR LEVER SHAFT Original ONAN/CUMMINS OEM part
ONAN
$32.55$29.73Precision-crafted to maintain the integrity of your ONAN generator's control system. Durable design that withstands rigorous engine conditions and ensures consistent performance. Critical for...$32.55$29.73 -
ONAN 4057225 INSULATION INLET Original ONAN/CUMMINS OEM part
ONAN
$13.95$12.74Cummins INSULATION INLET 405-7225 Find the perfect replacement part for your outdoor equipment with the Cummins INSULATION INLET (SKU: 405-7225). Our store prides itself on offering only original...$13.95$12.74 -
ONAN 1810479 CONTROL COVER Original ONAN/CUMMINS OEM part
ONAN
$12.98$11.86Precision engineered for seamless integration: The ONAN 181-0479 CONTROL COVER guarantees exact OEM fit, safeguarding your generator’s critical components. Durability that withstands operational...$12.98$11.86 -
ONAN 5032866 COOLANT HOSE Original ONAN/CUMMINS OEM part
ONAN
$13.70$12.52Assured Dependability for Your Power System Precision-engineered to maintain optimal engine temperature Durable material construction ensures extended service life under demanding...$13.70$12.52 -
ONAN 5032534 FUEL HOSE Original ONAN/CUMMINS OEM part
ONAN
$26.32$24.04Precision engineered for peak fuel delivery and leak-free performance Durable construction designed to resist wear, fuel degradation, and extreme conditions Manufactured as a genuine OEM component...$26.32$24.04 -
ONAN 226481703 OUTDOOR POWER EQUIPMENT LEAD Original ONAN/CUMMINS OEM part
ONAN
$23.84$21.78Cummins OUTDOOR POWER EQUIPMENT LEAD 226-4817-03 Find the authentic Cummins Outdoor Power Equipment Lead, SKU 226-4817-03, at our store. Crafted to deliver top performance, it ensures your equipment...$23.84$21.78 -
ONAN 501055103 FLEXIBLE FUEL LINE Original ONAN/CUMMINS OEM part
ONAN
$17.80$16.27Ensure seamless fuel flow with precision-engineered durability Resistant to cracking and leaks for uninterrupted engine operation Manufactured as an OEM part by Onan for full compatibility and peak...$17.80$16.27