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 3423186 BELLOWS Original OEM part
CUMMINS
$3,730.13$3,407.47Engineered for seamless performance and durability. Essential component ensuring vibration isolation and system longevity. Designed exclusively as a genuine Cummins OEM part for guaranteed...$3,730.13$3,407.47 -
CUMMINS 3423102 PISTON PIN Original OEM part
CUMMINS
$947.79$865.81Engineered Excellence for Enduring Power Precision-Machined for Optimal Fit and Durability Designed to Enhance Engine Efficiency and Longevity Certified Genuine OEM Cummins Component for Complete...$947.79$865.81 -
CUMMINS 3423056 BELLOWS Original OEM part
CUMMINS
$1,480.16$1,352.13Precision-engineered durability for unwavering generator performance Superior flexibility and sealing to maintain engine integrity 100% Genuine OEM Cummins component ensuring exact fit and...$1,480.16$1,352.13 -
CUMMINS 3422900 REGULAR HEX NUT Original OEM part
CUMMINS
$46.78$42.74Built to perform flawlessly under pressure — the backbone of Cummins reliability. Precision-engineered design ensures optimal fastening strength and durability in demanding environments. Heat and...$46.78$42.74 -
CUMMINS 3422842 STARTING MOTOR Original OEM part
CUMMINS
$14,116.32$12,895.26Power your engine with the precision-engineered starting motor designed to deliver reliable ignition every time. Robust construction ensures durability even under demanding conditions, maintaining...$14,116.32$12,895.26 -
CUMMINS 3422805 HEX HEAD CAPSCREW Original OEM part
CUMMINS
$68.63$62.69Engineered precision for lasting power Robust hex head design ensures secure fastening under extreme conditions Corrosion-resistant material for extended service life Certified OEM Cummins component...$68.63$62.69 -
CUMMINS 3422745 FLANGE GASKET Original OEM part
CUMMINS
$433.12$395.65Engineered for Excellence: Experience unmatched sealing integrity designed to withstand extreme pressure and temperature variations. Durability Under Demand: Crafted from premium materials to resist...$433.12$395.65 -
CUMMINS 3422553 SPRING WASHER Original OEM part
CUMMINS
$6.95$6.35Engineered to endure — uncompromising strength for lasting performance. Precision fit guarantees optimal torque retention and vibration control. Authentic OEM component ensures complete...$6.95$6.35 -
CUMMINS 3422552 ORING SEAL Original OEM part
CUMMINS
$61.12$55.83Engineered for precision, designed for endurance – keep your Cummins running flawlessly. Exceptional sealing capability guards against leaks, ensuring peak engine efficiency. Durable material...$61.12$55.83 -
CUMMINS 3422503 PIVOT PIN Original OEM part
CUMMINS
$292.44$267.14Precision-crafted durability for unwavering performance Essential pivot function guaranteeing smooth mechanical movement 100% authentic Cummins OEM part designed for perfect system...$292.44$267.14 -
CUMMINS 3422325 COMPRESSION SPRING Original OEM part
CUMMINS
$202.68$185.15Engineered to uphold Cummins’ legacy of durability and precision High-tensile compression spring delivers consistent force absorption Designed for optimal engine valve and component...$202.68$185.15 -
CUMMINS 3422233 GOVERNOR WEIGHT CARRIER Original OEM part
CUMMINS
$304.86$278.49Precision engineered for dependable operation in critical power systems Durable construction ensures long-lasting performance under demanding conditions Official OEM component from Cummins...$304.86$278.49 -
CUMMINS 3422205 FLEXIBLE HOSE Original OEM part
CUMMINS
$958.22$875.33Cummins 3422205 - FLEXIBLE HOSE MINS3422205 Find the best quality 3422205 - FLEXIBLE HOSE from Cummins at our store. Engineered to the highest standards, this original replacement part ensures...$958.22$875.33 -
CUMMINS 3422051 SHUTOFF VALVE COVER Original OEM part
CUMMINS
$2,535.37$2,316.06Cummins 3422051 - SHUTOFF VALVE COVER MINS3422051 Find genuine quality with the 3422051 - SHUTOFF VALVE COVER by Cummins, SKU MINS3422051, exclusively at our online store. Benefit from the assurance...$2,535.37$2,316.06 -
CUMMINS 3422050 ORING SEAL Original OEM part
CUMMINS
$76.02$69.44Unmatched sealing precision for dependable engine performance Durable material composition designed for extended service life 100% Genuine OEM part manufactured by Cummins for perfect...$76.02$69.44 -
CUMMINS 3422049 SHUTOFF VALVE SHAFT Original OEM part
CUMMINS
$2,578.32$2,355.29Precision engineered for unwavering engine control Ensures smooth and reliable fuel shutoff for safety and efficiency Crafted as a genuine OEM Cummins component for guaranteed compatibility Secure...$2,578.32$2,355.29 -
CUMMINS 3422005 PLAIN WASHER Original OEM part
CUMMINS
$58.15$53.12Cummins 3422005 - PLAIN WASHER MINS3422005 Discover the genuine quality of the 3422005 - PLAIN WASHER by Cummins, available at our online store. As the best source for original replacement parts, we...$58.15$53.12 -
CUMMINS 3421904 SOCKET HEAD CAPSCREW Original OEM part
CUMMINS
$13.00$11.88Precision engineered to hold your power system together with unwavering strength. Exceptional corrosion resistance enhances lifespan even in demanding environments. Designed for exact Cummins...$13.00$11.88 -
CUMMINS 3421704 EXHAUST CONNECTION BRACKET Original OEM part
CUMMINS
$1,103.80$1,008.33Engineered Precision for Enduring Performance Durable construction to maintain exhaust integrity under demanding conditions Seamless compatibility guarantees easy installation and optimum system...$1,103.80$1,008.33 -
CUMMINS 3421700 EXHAUST COLLECTOR CONNECTION SUPPORT Original OEM part
CUMMINS
$374.85$342.43Cummins 3421700 - EXHAUST COLLECTOR CONNECTION SUPPORT MINS3421700 Find the authentic 3421700 - EXHAUST COLLECTOR CONNECTION SUPPORT by Cummins at our store, the go-to destination for top-quality...$374.85$342.43 -
CUMMINS 3421687 BELLOWS Original OEM part
CUMMINS
$6,677.50$6,099.90Cummins 3421687 - BELLOWS MINS3421687 Whether you're in need of a durable replacement part for your outdoor equipment, the "3421687 - BELLOWS" by Cummins is your perfect choice. Crafted with quality...$6,677.50$6,099.90 -
CUMMINS 3421615 SPRING WASHER Original OEM part
CUMMINS
$5.73$5.23Precision engineered to maintain your Cummins power with unwavering stability Optimizes fastening tension to secure critical engine assemblies Constructed for exceptional resistance to vibration and...$5.73$5.23 -
CUMMINS 3421614 REGULAR HEX NUT Original OEM part
CUMMINS
$5.39$4.93Precision Engineered for Lasting Security High-Strength Hex Nut Designed to Maintain Critical Connections Durability That Meets Rigorous Cummins Standards Guaranteed Genuine OEM Cummins Quality for...$5.39$4.93 -
CUMMINS 3421570 MALE ADAPTER ELBOW Original OEM part
CUMMINS
$219.20$200.24Engineered Excellence for Peak Performance Precision-fit male adapter elbow enhances fuel and fluid flow integrity Designed to withstand rigorous operating conditions ensuring durability 100%...$219.20$200.24 -
CUMMINS 3421489 MALE CONNECTOR Original OEM part
CUMMINS
$58.29$53.25Precision-engineered connection for seamless power delivery Durable construction designed to withstand harsh operating conditions Certified OEM part from Cummins ensuring exact fit and...$58.29$53.25 -
CUMMINS 3421477 MALE ADAPTER ELBOW Original OEM part
CUMMINS
$154.95$141.55Engineered Reliability, Engineered to Perform Precision-crafted for exact fit and long-lasting durability in Cummins power systems. Designed to optimize fluid flow and maintain mechanical integrity...$154.95$141.55 -
CUMMINS 3421396 HEX HEAD CAPSCREW Original OEM part
CUMMINS
$7.03$6.42Precision-engineered fastening crafted to exact Cummins specifications for impeccable fit and function. Durability under demanding conditions to maintain engine stability and safety over the long...$7.03$6.42 -
CUMMINS 3421328 PLAIN WASHER Original OEM part
CUMMINS
$57.54$52.56Cummins 3421328 - PLAIN WASHER MINS3421328 When it comes to finding the authentic 3421328 - PLAIN WASHER for your outdoor equipment, look no further than our store. We proudly offer the genuine...$57.54$52.56 -
CUMMINS 3421320 PLAIN HOSE Original OEM part
CUMMINS
$81.48$74.43Empower your engine’s heartbeat with precision-crafted durability. Robust plain hose designed for maximum fluid transfer efficiency under demanding conditions. Resistant to temperature fluctuations...$81.48$74.43 -
CUMMINS 3421305 THERMOSTAT Original OEM part
CUMMINS
$224.79$205.35Precision-engineered cooling control for peak engine efficiency Robust design ensuring consistent temperature regulation under demanding conditions Certified genuine OEM Cummins part guaranteeing...$224.79$205.35 -
CUMMINS 3421303 THERMOSTAT Original OEM part
CUMMINS
$137.84$125.92Precision engineered for dependable engine temperature control Ensures optimal engine efficiency and longevity Designed specifically as an OEM part by Cummins for seamless compatibility CUMMINS...$137.84$125.92 -
CUMMINS 3421256 OIL SPRAY NOZZLE Original OEM part
CUMMINS
$564.90$516.04Cummins 3421256 - OIL SPRAY NOZZLE MINS3421256 Discover the authentic 3421256 - OIL SPRAY NOZZLE by Cummins, designed to meet the highest standards for your outdoor equipment needs. At our store, we...$564.90$516.04 -
CUMMINS 3421255 GROOVE PIN Original OEM part
CUMMINS
$5.97$5.46Precision-engineered to uphold Cummins' tradition of excellence and dependability. Durable groove pin crafted to ensure secure, vibration-resistant assembly in critical engine components. Maintains...$5.97$5.46 -
CUMMINS 3421253 GEAR COOLING NOZZLE Original OEM part
CUMMINS
$381.50$348.51Precision engineered for optimal cooling efficiency Enhances gear longevity through superior heat management Certified genuine OEM Cummins component guaranteeing compatibility CUMMINS 3421253 GEAR...$381.50$348.51 -
CUMMINS 3421193 SOCKET HEAD CAPSCREW Original OEM part
CUMMINS
$104.44$95.40Precision engineered for uncompromising strength and reliability Corrosion-resistant finish to withstand harsh engine environments Original Equipment Manufacturer (OEM) quality for guaranteed...$104.44$95.40 -
CUMMINS 3421181 GEAR RETAINER Original OEM part
CUMMINS
$615.96$562.68Engineered to perfection for uncompromising power and reliability Durable gear retainer designed to maintain optimal gear alignment and system efficiency Precision OEM component ensuring seamless...$615.96$562.68 -
CUMMINS 3421180 PISTON COOLING NOZZLE Original OEM part
CUMMINS
$552.60$504.81Experience precision-engineered cooling designed for peak piston performance. Enhances engine efficiency by managing critical heat dissipation effectively. Manufactured as an original equipment...$552.60$504.81 -
CUMMINS 3421179 OIL SPRAY NOZZLE Original OEM part
CUMMINS
$88.62$80.95Precision engineered to keep your Cummins engine running smoothly under all conditions. Optimal oil atomization ensures superior lubrication and engine longevity. Designed to meet exact Cummins...$88.62$80.95 -
CUMMINS 3421109 STUD Original OEM part
CUMMINS
$203.48$185.88Precision-engineered to uphold Cummins' legacy of reliability and power excellence Robust material composition ensures exceptional strength and long service life under demanding conditions Designed...$203.48$185.88 -
CUMMINS 3421101 STUD Original OEM part
CUMMINS
$29.70$27.14Precision engineered for uncompromising durability Optimized to maintain critical engine integrity under demanding conditions Designed exclusively by Cummins to meet exacting OEM standards CUMMINS...$29.70$27.14