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 5032004 HOSE LP VAPOR FEET ONAN Genuine OEM Part
ONAN
$17.94$16.39The ONAN 503-2004 HOSE LP VAPOR FEET is a high-quality replacement hose made from durable materials, supplied as a genuine OEM part. This hose efficiently manages low-pressure vapor flow within...$17.94$16.39 -
ONAN 1857110 EXHAUST STUD Original ONAN/CUMMINS OEM part
ONAN
$11.58$10.58Precision engineered for seamless exhaust system integration Exceptional corrosion resistance for extended service life Guaranteed Genuine OEM part from Onan, ensuring peak reliability ONAN...$11.58$10.58 -
ONAN 300587801 CONTROL ASSY (15 AMP CHAR ONAN/CUMMINS Original OEM part
ONAN
$2,098.45$1,916.93Engineered for Excellence: Precision Control at Your Fingertips Robust Design: Guarantees reliable operation under demanding conditions Optimized Compatibility: Perfectly matches your ONAN system...$2,098.45$1,916.93 -
ONAN A054F059 FUEL LEVEL SENSOR Original ONAN/CUMMINS OEM part
ONAN
$606.26$553.82Engineered Reliability for Peak Performance Accurate Fuel Level Detection for Seamless Operation Durable design built to withstand demanding generator environments 100% Genuine ONAN OEM component,...$606.26$553.82 -
ONAN A042M072 AIR FILTER ELEMENT Original ONAN/CUMMINS OEM part
ONAN
$174.83$159.71Precision-engineered to maintain your generator's peak performance and reliability High-efficiency filtration that safeguards your engine from contaminants Durable, long-lasting design to reduce...$174.83$159.71 -
CUMMINS 4920488 WATER TRANSFER TUBE Original OEM part
CUMMINS
$528.10$482.42Engineered for precision and durability to enhance your Cummins power system’s reliability. Designed to maintain optimal coolant flow and prevent overheating under heavy-duty operation. Crafted from...$528.10$482.42 -
CUMMINS 4376195 LOWER ENGINE GASKET KIT Original OEM part
CUMMINS
$410.33$374.83Precision-engineered endurance: Designed to maintain engine integrity through demanding conditions. Comprehensive sealing solution: Ensures optimal compression and prevents leaks for peak...$410.33$374.83 -
CUMMINS 3923200 PRESSURE SENSOR Original OEM part
CUMMINS
$199.23$181.99Cummins 3923200 - PRESSURE SENSOR - - NO LONGER AVAILABLE MINS3923200 When it comes to reliable original replacement parts, look no further than our store for the best deals like the "3923200 -...$199.23$181.99 -
ONAN 541086301 SIPHON BREAKER KIT Original ONAN/CUMMINS OEM part
ONAN
$189.42$173.03Cummins SIPHON BREAKER KIT 541086301 Discover the innovative Cummins SIPHON BREAKER KIT (SKU: 541086301) the essential component for your outdoor equipment maintenance needs. Crafted with precision...$189.42$173.03 -
ONAN 1320371 WEAR PLATE Original ONAN/CUMMINS OEM part
ONAN
$24.54$22.42Cummins WEAR PLATE 132-0371 Discover the authentic Cummins WEAR PLATE with SKU 132-0371, exclusively available at our online store. Engineered for durability and precision, this genuine replacement...$24.54$22.42 -
ONAN 5032046 ENGINE MANIFOLD HOSE Original ONAN/CUMMINS OEM part
ONAN
$21.62$19.75Precision in every connection – engineered to keep your power flowing seamlessly Durable construction for sustained engine efficiency and reduced downtime Exact OEM specifications guarantee flawless...$21.62$19.75 -
ONAN 1220918 OIL FILTER ORING GASKET Original ONAN/CUMMINS OEM part
ONAN
$15.78$14.42Cummins OIL FILTER O-RING GASKET 122-0918 Find the perfect fit for your lawn mower with the original Cummins OIL FILTER O-RING GASKET, SKU 122-0918. Our store guarantees quality and authenticity,...$15.78$14.42 -
ONAN 1852078 VALVE STEM SEAL Original ONAN/CUMMINS OEM part
ONAN
$9.48$8.66Cummins VALVE STEM SEAL 185-2078 Discover the authentic VALVE STEM SEAL by Cummins, SKU 185-2078, at our online store. Our commitment to providing genuine replacement parts ensures top-notch quality...$9.48$8.66 -
ONAN 805202106 M12 X 1.75 HEX HEAD BOLT Original ONAN/CUMMINS OEM part
ONAN
$8.85$8.08Cummins M12 X 1.75 HEX HEAD BOLT 805-2021-06 Find the authentic Cummins M12 X 1.75 HEX HEAD BOLT with SKU 805-2021-06 at our store. Crafted with precision for outdoor equipment, this bolt guarantees...$8.85$8.08 -
ONAN 5080315 REMOTE GROMMET ONAN Genuine OEM Part
ONAN
$5.70$5.21Certified Genuine ONAN OEM Part ensuring exact compatibility Protects wiring and cables by providing a secure, durable seal Reduces wear and prevents contamination inside generator assemblies...$5.70$5.21 -
ONAN 1852294 GASKET Original ONAN/CUMMINS OEM part
ONAN
$5.43$4.96Precision engineered for lasting power Maintains airtight sealing to optimize engine efficiency Designed explicitly for full compatibility with Onan generator systems Guaranteed genuine OEM quality...$5.43$4.96 -
Cummins X15 Electrical Repair Connector 5394263 OEM
CUMMINS
$96.40$88.07The CUMMINS 5394263-B is a high-quality electrical repair connector made from durable materials, supplied as a genuine OEM part. This connector ensures secure electrical connections within...$96.40$88.07 -
ONAN A046K020 SERVICE KIT Original ONAN/CUMMINS OEM part
ONAN
$2,930.42$2,676.94Cummins SERVICE KIT A046K020 Discover the "SERVICE KIT" (SKU: A046K020) by Cummins, a high-quality solution to maintain your outdoor equipment. Our store stands out as the premier destination for...$2,930.42$2,676.94 -
CUMMINS 4956156 FEMALE CONNECTOR Original OEM part
CUMMINS
$106.10$96.93Cummins 4956156 FEMALE CONNECTOR MINS4956156 Discover the genuine Cummins 4956156 FEMALE CONNECTOR, your essential replacement part for outdoor equipment. With our store, authenticity is guaranteed...$106.10$96.93 -
CUMMINS 3935319 FUEL TRANSFER PUMP Original OEM part
CUMMINS
$276.24$252.34Engineered for Excellence: Power your equipment with unmatched reliability. Precision Fuel Transfer: Ensures consistent flow and peak engine efficiency. Robust Construction: Designed to withstand...$276.24$252.34 -
CUMMINS 2878366 WATER TRANSFER TUBE Original OEM part
CUMMINS
$562.06$513.44Engineered for endurance and efficiency in every drop Precision-crafted to maintain optimal cooling flow Durable construction resists corrosion and wear 100% Genuine OEM component from Cummins...$562.06$513.44 -
ONAN 450320 NON DRIVE END BEARING FRAME 4 KIT Original ONAN/CUMMINS OEM part - SUPERSEDED FROM 45-0322
ONAN
$379.28$346.48Built to Perform, Designed to Last – Trust ONAN for Reliability Precision-engineered Non Drive End Bearing Frame Kit for optimal engine support Ensures smooth operation and extends engine life under...$379.28$346.48 -
ONAN 501071202 HOSE ASSEMBLY Original ONAN/CUMMINS OEM part
ONAN
$63.69$58.18Precision engineered for seamless integration with your ONAN generator system Durable construction ensures consistent, leak-free operation under demanding conditions Maintains crucial fluid pathways...$63.69$58.18 -
ONAN 5031267 WATER HOSE Original ONAN/CUMMINS OEM part
ONAN
$43.29$39.55Cummins WATER HOSE 503-1267 Find an authentic Cummins Water Hose with SKU 503-1267 to keep your outdoor equipment running efficiently. Our store stands out for offering original replacement parts at...$43.29$39.55 -
ONAN 3372785 BOND STRAP ONAN Genuine OEM Part
ONAN
$39.30$35.91Brand: ONAN, a respected name in outdoor power equipment parts. Quality: This bond strap is manufactured to strict OEM standards, ensuring durability and precise fit. Call to Action: Replace worn or...$39.30$35.91 -
ONAN 1491952 PLUGHEX WITH ORING Original ONAN/CUMMINS OEM part
ONAN
$41.07$37.52Cummins PLUG-HEX WITH O-RING 149-1952 Find the authentic "PLUG-HEX WITH O-RING" under SKU "149-1952" by Cummins in our store. Ensure top-quality performance with this original replacement part...$41.07$37.52 -
ONAN 5032249 WET EXHAUST HOSE Original ONAN/CUMMINS OEM part
ONAN
$28.78$26.29Cummins WET EXHAUST HOSE 5032249 Upgrade your lawn mower with the original Cummins WET EXHAUST HOSE (SKU: 5032249) for optimal performance. At our store, we pride ourselves on offering topquality...$28.78$26.29 -
CUMMINS 5594276 SENSOR POSITION Original OEM part
CUMMINS
$92.45$84.45CUMMINS 5594276 - SENSOR POSITION CUMMINS 5594276 - SENSOR POSITION. This is an authentic CUMMINS replacement part. Available for USA and Canada only. Other countries please contact us. **...$92.45$84.45 -
Cummins 6BT Air Filter A029Y303 OEM
ONAN
$315.14$287.88The ONAN A029Y303-A air filter is a genuine OEM replacement made from high-grade filtration materials. It effectively traps airborne contaminants, securing clean airflow to the engine for...$315.14$287.88 -
ONAN A044A623 RADIATOR GASKET Original ONAN/CUMMINS OEM part
ONAN
$6.89$6.30Precision engineered for maximum cooling efficiency Durable construction resists wear and temperature extremes 100% genuine OEM ONAN component ensuring seamless compatibility ONAN A044A623 RADIATOR...$6.89$6.30 -
CUMMINS 4980605 LUBRICATING OIL PUMP GASKET Original OEM part
CUMMINS
$34.69$31.69Cummins 4980605 - LUBRICATING OIL PUMP GASKET MINS4980605 Discover the genuine Cummins 4980605 - LUBRICATING OIL PUMP GASKET at our online store. Designed to ensure optimal performance and...$34.69$31.69 -
CUMMINS 4327023 TEMPERATURE SWITCH Original OEM part
CUMMINS
$244.15$223.03Precision engineered to maintain your generator’s optimal temperature balance, enhancing system resilience under all conditions. Accurate temperature sensing ensures timely engine protection and...$244.15$223.03 -
FLEETGUARD 3847102S PACK STRAIGHT Original FLEETGUARD OEM part
FLEETGUARD
$800.74$731.47Fleetguard 3847102S PACK STRAIGHT FLG3847102S Find the genuine 3847102S PACK STRAIGHT by Fleetguard at our store, the ultimate destination for topquality replacement parts. With our commitment to...$800.74$731.47 -
CUMMINS 3066270 RING DOWEL Original OEM part
CUMMINS
$23.25$21.24Precision-engineered component that guarantees exact engine alignment for peak operational efficiency. Constructed with robust materials to withstand the toughest engine conditions, enhancing...$23.25$21.24 -
ONAN 300309311 PCB ASM 3PH OV V 60HZ Original ONAN/CUMMINS OEM part
ONAN
$1,127.00$1,029.52Cummins PCB ASM 3PH OV V 60HZ NO LONGER AVAILABLE 300-3093-11 Discover the hard-to-find Cummins PCB ASM 3PH OV V 60HZ NO LONGER AVAILABLE at our store. With SKU 300-3093-11, this original...$1,127.00$1,029.52 -
ONAN 1304979 HEAT EXCHANGER ZINC KIT ADAPTER Original ONAN/CUMMINS OEM part
ONAN
$95.67$87.40Precision-engineered for enduring generator performance Essential heat exchanger zinc adapter delivering superior corrosion resistance Critical role in safeguarding cooling system longevity and...$95.67$87.40 -
ONAN A034S778 ENCLOSURE DOOR Original ONAN/CUMMINS OEM part - SUPERSEDED FROM A040D552
ONAN
$101.49$92.72Engineered to protect, designed to last — the ONAN promise inside every enclosure door. Durable, precision-crafted enclosure door shields your generator’s core components from environment and wear...$101.49$92.72 -
ONAN 501071201 HOSE ASSEMBLY Original ONAN/CUMMINS OEM part
ONAN
$63.99$58.46Precision engineered to empower your generator’s heart. Robust construction ensures long-lasting service under demanding conditions. Optimized for seamless integration with ONAN power systems...$63.99$58.46 -
ONAN A026E709 GASKET Original ONAN/CUMMINS OEM part
ONAN
$16.62$15.18Precision engineered sealing for unmatched reliability Durable gasket material designed to endure harsh thermal cycles 100% genuine OEM ONAN component ensuring perfect compatibility and...$16.62$15.18 -
ONAN 5010005 FLEXIBLE FUEL LINE Original ONAN/CUMMINS OEM part
ONAN
$34.72$31.71Precision-engineered to uphold ONAN's legacy of flawless power delivery Durable construction for long-lasting fuel flow integrity Designed for seamless compatibility with your ONAN generator 100%...$34.72$31.71