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 3421091 SAFETY CONTROL Original OEM part
CUMMINS
$1,924.99$1,758.48Depend on Precision-Crafted Safety for Seamless Power Assurance Advanced Control Circuitry Designed for Real-Time Engine Protection Engineered to Ensure Rapid Response in Critical...$1,924.99$1,758.48 -
CUMMINS 3421082 KNOB Original OEM part
CUMMINS
$34.64$31.64Engineered for Excellence, Trusted for Life Precision-crafted knob designed for seamless control and reliable operation Durable construction guarantees long-lasting performance under demanding...$34.64$31.64 -
CUMMINS 3421077 THREADED PLUG Original OEM part
CUMMINS
$338.18$308.93Precision engineered for seamless reliability in your Cummins engine system Durable design ensures lasting protection against leaks and contamination Essential for maintaining optimal engine health...$338.18$308.93 -
CUMMINS 3421043 GEAR COOLING NOZZLE BODY Original OEM part
CUMMINS
$517.65$472.87Cummins 3421043 - GEAR COOLING NOZZLE BODY MINS3421043 Discover the 3421043 - GEAR COOLING NOZZLE BODY by Cummins, the essential component to keep your equipment running smoothly. Our store offers...$517.65$472.87 -
CUMMINS 3421027 MALE CONNECTOR Original OEM part
CUMMINS
$69.22$63.23Reliably engineered to maintain your CUMMINS equipment’s integrity Provides secure electrical connections to support optimal operation Manufactured as a genuine OEM component ensuring exact...$69.22$63.23 -
CUMMINS 3420963 TOGGLE SWITCH Original OEM part
CUMMINS
$1,016.75$928.80Precision Control Meets Endurance: Engineered to keep your generator systems responsive and reliable. Robust Construction for Long Life: Designed to withstand rigorous operational demands without...$1,016.75$928.80 -
CUMMINS 3420958 HEX HEAD CAPSCREW Original OEM part
CUMMINS
$7.08$6.47Engineered to Power Your Progress Precision-machined for exact fit and maximum durability Corrosion-resistant finish ensures long-lasting service life Genuine OEM Cummins part guaranteeing full...$7.08$6.47 -
CUMMINS 3420945 ORING SEAL Original OEM part
CUMMINS
$44.00$40.20Engineered for precision sealing and leak prevention in critical power equipment Manufactured to strict OEM standards for unmatched durability and compatibility Essential for maintaining system...$44.00$40.20 -
CUMMINS 3420932 ROCKER LEVER SEAL Original OEM part
CUMMINS
$91.89$83.95Engineered to maintain uncompromised performance under demanding conditions Ensures optimal sealing to prevent leaks and preserve engine health Manufactured as a genuine OEM component for guaranteed...$91.89$83.95 -
CUMMINS 3420921 BUSHING Original OEM part
CUMMINS
$770.07$703.46Engineered to deliver unmatched durability and precision Essential for maintaining engine alignment and minimizing wear Manufactured as a genuine Cummins OEM component for guaranteed...$770.07$703.46 -
CUMMINS 3420916 HEX HEAD CAPSCREW Original OEM part
CUMMINS
$7.83$7.15Dependable fastening power that stands the test of time Precision-engineered for optimal engine assembly integrity Crafted as an authentic Cummins OEM component for guaranteed compatibility CUMMINS...$7.83$7.15 -
CUMMINS 3420902 EXPANSION PLUG Original OEM part
CUMMINS
$156.15$142.64Unwavering durability meets precise engineering. Designed to maintain optimal engine sealing under demanding conditions. Manufactured exclusively as an OEM Cummins component for assured...$156.15$142.64 -
CUMMINS 3420901 EXPANSION PLUG Original OEM part
CUMMINS
$188.57$172.26Precision in every component, reliability in every operation. Manufactured to exact Cummins specifications for seamless integration. Constructed from premium materials to withstand high pressure and...$188.57$172.26 -
CUMMINS 3420854 WASHER SPRING Original OEM part
CUMMINS
$10.67$9.75Engineered Excellence for Enduring Power Precision-crafted washer spring to maintain optimal engine stability Durable design enhances vibration control and prolongs component life Authentic Cummins...$10.67$9.75 -
CUMMINS 3420849 SOCKET HEAD CAPSCREW Original OEM part
CUMMINS
$6.57$6.00Engineered to Deliver Precision and Strength Where It Matters Most High-Tensile Socket Head Capscrew Ensuring Maximum Durability Corrosion-Resistant Finish for Extended Service Life 100% Genuine OEM...$6.57$6.00 -
CUMMINS 3420843 STUD Original OEM part
CUMMINS
$47.90$43.76Engineered excellence for enduring power solutions Precision-crafted stud ensuring optimal fit and secure fastening Made from high-grade materials to withstand harsh operating conditions 100%...$47.90$43.76 -
CUMMINS 3420838 PLAIN WASHER Original OEM part
CUMMINS
$69.85$63.81Engineered to sustain peak performance under demanding conditions Precision-crafted for exact fit and superior durability Constructed from high-grade materials ensuring wear resistance 100% genuine...$69.85$63.81 -
CUMMINS 3420806 RETAINING RING Original OEM part
CUMMINS
$8.03$7.33Depend on precision-crafted Cummins durability for critical engine components Engineered to maintain secure fit and optimal system integrity Corrosion-resistant for lasting performance in demanding...$8.03$7.33 -
CUMMINS 3420795 FILTER HEAD COVER Original OEM part
CUMMINS
$1,064.16$972.11Cummins 3420795 - FILTER HEAD COVER MINS3420795 Find the authentic 3420795 - FILTER HEAD COVER by Cummins at our store. We offer it at the best price and guarantee fast shipping, providing you with...$1,064.16$972.11 -
CUMMINS 3420733 THERMOSTAT HOUSING Original OEM part
CUMMINS
$11,239.50$10,267.29Trust in enduring engine precision. Precision-engineered thermostat housing for consistent temperature regulation. Durable design to withstand extreme operating conditions. 100% Genuine Cummins OEM...$11,239.50$10,267.29 -
CUMMINS 3420667 MALE CONNECTOR Original OEM part
CUMMINS
$79.02$72.18Precision engineered to empower your Cummins system with seamless connectivity and unwavering reliability. Robust durability designed to withstand demanding operating conditions ensuring consistent...$79.02$72.18 -
CUMMINS 3420665 EXPANSION PLUG Original OEM part
CUMMINS
$72.18$65.94Engineered to empower: Ensure flawless sealing and protection with unmatched precision. Durable design: Crafted to resist corrosion and withstand high-pressure environments. OEM assurance: Certified...$72.18$65.94 -
CUMMINS 3420663 EXPANSION PLUG Original OEM part
CUMMINS
$12.98$11.86Experience engineering excellence with the precision-crafted CUMMINS 3420663 Expansion Plug Engineered to maintain optimal sealing and prevent leaks under high-pressure conditions Constructed from...$12.98$11.86 -
CUMMINS 3420654 PIN DOWEL Original OEM part
CUMMINS
$49.14$44.89Engineered to perfection for uncompromising power system stability Durable design guarantees precise alignment and optimal engine function 100% original CUMMINS OEM part crafted to meet stringent...$49.14$44.89 -
CUMMINS 3420648 SOCKET HEAD CAPSCREW Original OEM part
CUMMINS
$217.62$198.79Precision engineered fastening for uncompromising power integrity Corrosion-resistant alloy for long-lasting strength Exact fit design ensuring full Cummins system compatibility Certified genuine...$217.62$198.79 -
CUMMINS 3420646 CAMSHAFT ADAPTER Original OEM part
CUMMINS
$6,801.05$6,212.76Cummins 3420646 - CAMSHAFT ADAPTER MINS3420646 Find the original "3420646 - CAMSHAFT ADAPTER" by Cummins at our store. Designed for durability and precise fit, this product ensures optimal...$6,801.05$6,212.76 -
CUMMINS 3420640 DISC SPRING Original OEM part
CUMMINS
$21.84$19.95Precision-engineered disc spring delivering consistent tension and resilience under demanding conditions Durably crafted to withstand high stress, enhancing your engine’s overall reliability and...$21.84$19.95 -
CUMMINS 3420626 RETAINING RING Original OEM part
CUMMINS
$22.10$20.19Engineered to deliver uncompromising strength and precision fit for your Cummins system Optimized to maintain component stability under demanding operational conditions Certified OEM Cummins part,...$22.10$20.19 -
CUMMINS 3420621 SLEEVE Original OEM part
CUMMINS
$116.12$106.07Dependability that fuels your power Precision-engineered sleeve for optimal engine protection Designed to enhance engine longevity and performance Manufactured as a genuine OEM Cummins component,...$116.12$106.07 -
CUMMINS 3420619 INJECTOR FUEL INLET PIPE Original OEM part
CUMMINS
$3,218.17$2,939.80Precision crafted for unwavering engine performance Engineered to optimize fuel flow and system efficiency Durable construction designed for extended service life Authentic Cummins OEM component...$3,218.17$2,939.80 -
CUMMINS 3420618 INJECTOR FUEL INLET PIPE Original OEM part
CUMMINS
$1,362.04$1,244.22Built to power your trust, engineered to deliver excellence. Precision manufactured fuel inlet pipe ensuring optimal injector performance and fuel efficiency. Durable construction designed to...$1,362.04$1,244.22 -
CUMMINS 3420609 ROCKER SOCKET Original OEM part
CUMMINS
$217.20$198.42Engineered Excellence for Enduring Power Precision-Fit Design Ensures Optimal Valve Operation Durable Material Composition for Long-Lasting Performance Guaranteed Genuine OEM Cummins Component,...$217.20$198.42 -
CUMMINS 3420601 CROSSHEAD ADJUSTING SCREW Original OEM part
CUMMINS
$297.54$271.80Engineered for precision and durability, ensuring seamless engine operation and extended service life. Maintains optimal crosshead position for enhanced engine efficiency and reduced wear. 100%...$297.54$271.80 -
CUMMINS 3420526 THRUST BEARING PLATE Original OEM part
CUMMINS
$444.40$405.96Cummins 3420526 - THRUST BEARING PLATE MINS3420526 Find the authentic 3420526 - THRUST BEARING PLATE from Cummins at our store. Crafted with precision, this product ensures reliable performance for...$444.40$405.96 -
CUMMINS 3420517 CAMSHAFT GEAR Original OEM part
CUMMINS
$4,671.62$4,267.52Engineered precision for uncompromising power delivery Durable construction ensuring long-lasting performance 100% OEM Cummins part manufactured to exact specifications Experience Unmatched...$4,671.62$4,267.52 -
CUMMINS 3418522 HOUSING ROCKER Original OEM part
CUMMINS
$2,629.40$2,401.96Experience unmatched reliability with the genuine CUMMINS 3418522 HOUSING ROCKER, engineered to elevate your engine's performance. Precision-crafted to maintain engine integrity and enhance power...$2,629.40$2,401.96 -
CUMMINS 3418334 ELECTRICAL CABLE Original OEM part
CUMMINS
$165.63$151.30Precision-engineered for seamless power flow and reliability Durable design to withstand demanding electrical conditions Certified genuine OEM Cummins component assuring perfect compatibility Power...$165.63$151.30 -
CUMMINS 3418333 ELECTRICAL CABLE Original OEM part
CUMMINS
$2,095.93$1,914.63Cummins 3418333 - ELECTRICAL CABLE MINS3418333 Discover top-notch quality with the 3418333 - ELECTRICAL CABLE from Cummins. Engineered to perfection, this original replacement part guarantees a...$2,095.93$1,914.63 -
CUMMINS 3418331 ELECTRICAL CABLE Original OEM part
CUMMINS
$331.88$303.18Precision engineered for seamless power transmission Durable construction for long-lasting engine performance 100% OEM Cummins authenticity assuring perfect compatibility Feel the Power of...$331.88$303.18 -
CUMMINS 3417638 CRANKSHAFT PULLEY Original OEM part
CUMMINS
$471.55$430.76The CUMMINS 3417638 CRANKSHAFT PULLEY is a high-grade steel component designed as an original OEM replacement for CUMMINS engines. This pulley efficiently transmits rotational power from the...$471.55$430.76