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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
CUMMINS 5266187 WATER TUBE BRACKET Original OEM part
CUMMINS
$1,034.60$945.11Cummins 5266187 - WATER TUBE BRACKET MINS5266187 When it comes to sourcing original replacement parts like the 5266187 - WATER TUBE BRACKET, choosing genuine products ensures seamless integration...$1,034.60$945.11 -
CUMMINS 5266186 COVER PLATE Original OEM part
CUMMINS
$95.70$87.43Engineered to deliver uncompromising protection and performance Precision-crafted to maintain optimal engine sealing and minimize wear Designed to resist corrosion and environmental stress for...$95.70$87.43 -
CUMMINS 5266032 STUB SHAFT Original OEM part
CUMMINS
$272.70$249.12Cummins 5266032 - STUB SHAFT MINS5266032 Find the original 5266032 - STUB SHAFT by Cummins, SKU MINS5266032, at our store. Ensure your outdoor equipment runs smoothly with this quality replacement...$272.70$249.12 -
CUMMINS 5265378 HEX HEAD CAPSCREW Original OEM part
CUMMINS
$56.40$51.53Engineered for excellence, built to endure. Precision-machined hex head cap screw for optimal fit and torque retention. Corrosion-resistant finish to withstand harsh engine environments. Authentic...$56.40$51.53 -
CUMMINS 5265367 BREATHER TUBE Original OEM part
CUMMINS
$200.40$183.07Precision engineered for seamless engine ventilation Enhances crankcase pressure regulation to maintain optimal engine function Durable material ensures long-lasting performance under demanding...$200.40$183.07 -
CUMMINS 5265250 ALTERNATOR SUPPORT Original OEM part
CUMMINS
$94.75$86.55Cummins 5265250 - ALTERNATOR SUPPORT MINS5265250 Find the authentic 5265250 - ALTERNATOR SUPPORT by Cummins at our store. Crafted with precision and designed for top performance, this part ensures...$94.75$86.55 -
CUMMINS 5265148 QUICK DISCONNECT CONNECTOR Original OEM part
CUMMINS
$8.15$7.44Precision Engineered for Seamless Connectivity: Designed to maintain optimal power system integrity under demanding conditions. Durability That Withstands Harsh Environments: Crafted to resist...$8.15$7.44 -
CUMMINS 5264871 RETAINING RING Original OEM part
CUMMINS
$7.58$6.93Reliability Engineered in Every Turn Precision-crafted retaining ring for secure engine assembly Made to withstand demanding conditions and extend engine life Authentic OEM component by Cummins,...$7.58$6.93 -
CUMMINS 5264584 FLYWHEEL Original OEM part
CUMMINS
$2,552.18$2,331.42Precision engineered to power your Cummins engine with unmatched reliability Robust construction ensuring optimal torque transfer and vibration reduction Essential balance for smooth engine...$2,552.18$2,331.42 -
CUMMINS 5264301 IDLER GEAR Original OEM part
CUMMINS
$2,937.58$2,683.48Unrivaled Precision for Dependable Power Durability designed to withstand rigorous operational demands Optimized for seamless integration with your Cummins engine system Guaranteed 100% OEM...$2,937.58$2,683.48 -
CUMMINS 5263816 COVER VALVE Original OEM part
CUMMINS
$1,054.42$963.21Cummins 5263816 - COVER VALVE - NO LONGER AVAILABLE MINS5263816 Find the elusive 5263816 - COVER VALVE - NO LONGER AVAILABLE by Cummins from our store. We pride ourselves in offering genuine...$1,054.42$963.21 -
CUMMINS 5262673 SENSOR ADAPTER Original OEM part
CUMMINS
$618.52$565.01Experience unmatched precision engineered for Cummins power systems Ensures seamless sensor integration for optimal engine monitoring Durable construction guarantees extended operational life under...$618.52$565.01 -
CUMMINS 5262302 THERMOSTAT HOUSING SUPPORT Original OEM part
CUMMINS
$382.10$349.05Precision engineered for unmatched engine support and cooling efficiency Durable construction resists wear and thermal stress for long life Designed as a genuine OEM component by Cummins to...$382.10$349.05 -
CUMMINS 5261959 COMPRESSOR AIR INLET TUBE Original OEM part
CUMMINS
$146.33$133.67Precision-engineered airflow solution for peak engine efficiency Durable design to maintain optimal compressor performance under all conditions 100% genuine OEM Cummins part ensuring perfect fit and...$146.33$133.67 -
CUMMINS 5261572 SHAFT GUARD Original OEM part
CUMMINS
$5,542.33$5,062.92Unmatched reliability for your Cummins engine systems Precision-engineered to protect critical shaft components Durable design ensures long-lasting service under demanding conditions Guaranteed OEM...$5,542.33$5,062.92 -
CUMMINS 5261050 COUPLING GUARD Original OEM part
CUMMINS
$4,432.09$4,048.72Precision-engineered protection for your Cummins power system Durable coupling guard designed for optimal safety Corrosion-resistant construction enhances longevity Guaranteed genuine Cummins OEM...$4,432.09$4,048.72 -
CUMMINS 5260266 FUEL INJECTION PUMP Original OEM part
CUMMINS
$7,310.05$6,677.73Cummins 5260266 - FUEL INJECTION PUMP MINS5260266 Find the authentic Cummins 5260266 - FUEL INJECTION PUMP at our store. Engineered for precision and durability, this essential part ensures optimal...$7,310.05$6,677.73 -
CUMMINS 5259894 CLEAN IDLE UPGRADE Original OEM part
CUMMINS
$232.56$212.44Cummins 5259894 - CLEAN IDLE UPGRADE MINS5259894 Upgrade your equipment with the genuine Cummins 5259894 - CLEAN IDLE UPGRADE, ensuring optimal performance. Trust our store for original parts that...$232.56$212.44 -
CUMMINS 5259558 THREADED PLUG Original OEM part
CUMMINS
$12.82$11.71Cummins 5259558 - THREADED PLUG MINS5259558 When it comes to ensuring the optimal performance of your outdoor equipment, the 5259558 - THREADED PLUG by Cummins is a crucial component. At our store,...$12.82$11.71 -
CUMMINS 5257994 HEAT SHIELD Original OEM part
CUMMINS
$318.00$290.50Engineered to protect and perform — trust precision made for Cummins power Exceptional thermal resistance to safeguard critical engine components Durable construction designed to withstand harsh...$318.00$290.50 -
CUMMINS 5257992 HEAT SHIELD Original OEM part
CUMMINS
$274.72$250.95Engineered to elevate endurance and safety under intense heat scenarios Robust thermal barrier designed to protect critical engine parts Precision-made to match exact OEM specifications for seamless...$274.72$250.95 -
CUMMINS 5257991 HEAT SHIELD Original OEM part
CUMMINS
$326.32$298.09Precision engineered to protect, perform, and preserve your Cummins power system. Robust thermal insulation guarantees engine components remain shielded from excessive heat buildup...$326.32$298.09 -
CUMMINS 5257923 EXHAUST CONNECTION BRACKET Original OEM part
CUMMINS
$471.09$430.34Engineered for Endurance: Experience unmatched durability designed to withstand the toughest exhaust system demands. Precision Fit for Reliable Performance: Ensures secure connection and optimal...$471.09$430.34 -
CUMMINS 5257922 EXHAUST CONNECTION BRACKET Original OEM part
CUMMINS
$1,193.93$1,090.65Precision engineered for seamless integration and enduring strength Robust design ensures optimal exhaust alignment and vibration control Constructed from premium materials for superior corrosion...$1,193.93$1,090.65 -
CUMMINS 5257904 TURBOCHARGER COOLANT SUPPLY TUBE Original OEM part
CUMMINS
$533.20$487.08Precision engineered for uncompromising turbocharger cooling performance Durable construction designed to withstand demanding engine conditions Seamless integration as an OEM Cummins component for...$533.20$487.08 -
CUMMINS 5257746 EXHAUST OUTLET CONNECTION Original OEM part
CUMMINS
$11,688.49$10,677.44Precision engineering for guaranteed exhaust efficiency Robust construction designed to withstand harsh operating conditions 100% authentic CUMMINS OEM component ensuring full system...$11,688.49$10,677.44 -
CUMMINS 5257136 HEAT SHIELD Original OEM part
CUMMINS
$50.70$46.32Cummins 5257136 - HEAT SHIELD MINS5257136 Discover the genuine Cummins 5257136 - HEAT SHIELD at our store, the ultimate destination for premium replacement parts. Designed for durability and perfect...$50.70$46.32 -
CUMMINS 5256985 OIL FILLER TUBE Original OEM part
CUMMINS
$740.57$676.51Precision-engineered for seamless integration with Cummins engines, ensuring consistent performance and reliability. Durable construction protects your engine's oil fill system, minimizing...$740.57$676.51 -
CUMMINS 5256387 ELBOW HOSE Original OEM part
CUMMINS
$85.03$77.67Cummins 5256387 - ELBOW HOSE MINS5256387 Discover the top-quality original 5256387 - ELBOW HOSE by Cummins at our store. With a focus on authenticity and precision, we offer this essential...$85.03$77.67 -
CUMMINS 5256214 AIR COMPRESSOR GASKET Original OEM part
CUMMINS
$50.56$46.19Cummins 5256214 - AIR COMPRESSOR GASKET MINS5256214 Shop with confidence for the original Cummins 5256214 - AIR COMPRESSOR GASKET at our store. Our commitment to providing genuine replacement parts...$50.56$46.19 -
CUMMINS 5256212 AIR COMPRESSOR GASKET Original OEM part
CUMMINS
$20.63$18.84Performance integrity sealed tight — trust every seal. Precisely engineered to maintain optimal air compressor functionality. Enhances engine longevity by preventing leaks and preserving compression...$20.63$18.84 -
CUMMINS 5255925 FLEXIBLE COUPLING Original OEM part
CUMMINS
$6,955.28$6,353.65Precision engineered to maintain seamless power transmission under demanding conditions Enhances engine longevity by reducing vibration and mechanical stress 100% genuine Cummins OEM part ensuring...$6,955.28$6,353.65 -
CUMMINS 5255750 AIR TUBE Original OEM part
CUMMINS
$818.40$747.61Unwavering reliability for your Cummins engine demands excellence and precision. Optimized airflow control to enhance engine efficiency and reduce emissions. Durable construction engineered to...$818.40$747.61 -
CUMMINS 5255607 OIL TUBE BRACKET Original OEM part
CUMMINS
$69.98$63.93Engineered to deliver unmatched durability and precision fit for your Cummins power system Secures vital oil tube components, ensuring optimal engine oil flow and protection Constructed from premium...$69.98$63.93 -
CUMMINS 5255285 EXHAUST CONNECTION BRACKET Original OEM part
CUMMINS
$801.79$732.44Engineered for precision and durability, ensuring a seamless exhaust system fit. Enhances exhaust alignment and reduces vibration, prolonging engine life. Certified genuine Cummins OEM component for...$801.79$732.44 -
CUMMINS 5255283 EXHAUST CONNECTION BRACKET Original OEM part
CUMMINS
$1,010.49$923.09Unwavering Strength Meets Engineered Precision Robust construction for enduring exhaust system stability Designed to maintain optimal exhaust alignment and reduce vibration 100% genuine OEM Cummins...$1,010.49$923.09 -
CUMMINS 5255281 HEAT SHIELD Original OEM part
CUMMINS
$830.63$758.78Cummins 5255281 - HEAT SHIELD MINS5255281 Discover ultimate protection with the Cummins 5255281 - HEAT SHIELD. Our store offers the original part ensuring perfect fit and top-notch quality...$830.63$758.78 -
CUMMINS 5255280 HEAT SHIELD Original OEM part
CUMMINS
$1,373.16$1,254.38Shield your engine with confidence and uncompromising quality. Precisely crafted heat insulation ensures optimal thermal management for your Cummins system. Durability engineered to withstand...$1,373.16$1,254.38 -
CUMMINS 5255225 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$8,869.49$8,102.28Engineered for Excellence, Designed for Dependability Advanced emissions control technology ensuring compliance and reduced environmental impact Durable construction crafted to maintain engine...$8,869.49$8,102.28 -
CUMMINS 5255224 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$10,222.09$9,337.88Cummins 5255224 - AFTERTREATMENT DEVICE MINS5255224 Discover the genuine quality of the Cummins 5255224 - AFTERTREATMENT DEVICE, essential for maintaining your outdoor equipment. Our store stands...$10,222.09$9,337.88