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 5291256 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$8,869.49$8,102.28Maximize engine performance and emissions compliance with precision-engineered components Designed for long-lasting durability under demanding operating conditions 100% Genuine OEM Cummins part,...$8,869.49$8,102.28 -
CUMMINS 5288737 GASKET OIL PAN Original OEM part
CUMMINS
$147.60$134.84Seal your engine’s future with precision and trust Durable oil pan gasket designed to prevent leaks and maintain optimal engine health High-quality material ensuring long-lasting performance under...$147.60$134.84 -
CUMMINS 5280428 BELT GUARD BRACKET Original OEM part
CUMMINS
$225.83$206.29Designed for unmatched protection: safeguard your engine components with precision-engineered strength. Durable construction: withstands rigorous operating conditions ensuring extended service life...$225.83$206.29 -
CUMMINS 5270672 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$8,869.49$8,102.28Engineered for precision and durability – trust in Cummins innovation Advanced emissions management technology for cleaner, compliant power Optimizes engine performance while extending component...$8,869.49$8,102.28 -
CUMMINS 5268997 FUEL INJECTION PUMP Original OEM part
CUMMINS
$7,676.36$7,012.36Engineered for Precise Fuel Delivery: Experience efficient combustion and improved engine response. Durability Under Demanding Conditions: Crafted to withstand rigorous operational environments...$7,676.36$7,012.36 -
CUMMINS 4999466 FUEL PUMP Original OEM part
CUMMINS
$6,053.93$5,530.26Precision Engineering Meets Dependability for Every Mile Optimized Fuel Flow for Enhanced Engine Performance Durability That Withstands the Toughest Operating Conditions 100% Genuine OEM CUMMINS...$6,053.93$5,530.26 -
CUMMINS 4998769 OIL PAN BAFFLE Original OEM part
CUMMINS
$638.52$583.28Engineered for excellence: Keep your Cummins engine running smoothly with precision-fit oil pan baffling. Durability you can trust: Made from premium materials to withstand harsh diesel engine...$638.52$583.28 -
CUMMINS 4994608 LOCK WASHER Original OEM part
CUMMINS
$107.38$98.09Precision-engineered to endure intense vibration and torque Essential for maintaining secure assemblies and preventing loosening Crafted as an official OEM component from Cummins for guaranteed...$107.38$98.09 -
CUMMINS 4981365 CONTROL HANDLE SHAFT KEY Original OEM part
CUMMINS
$33.98$31.04Precision engineered for optimal control and durability in your Cummins system Crafted to meet strict OEM standards for seamless compatibility Durable construction that supports extended engine...$33.98$31.04 -
CUMMINS 4966688 OFFSET WOODRUFF KEY Original OEM part
CUMMINS
$132.04$120.62Engineered Precision for Reliable Power Transmission Offset design ensures optimal fit and stress distribution Manufactured as an original Cummins OEM component for guaranteed compatibility Crafted...$132.04$120.62 -
CUMMINS 4944069 GEAR FLYWHEEL RING Original OEM part
CUMMINS
$637.85$582.68Cummins 4944069 - GEAR FLYWHEEL RING - NO LONGER AVAILABLE MINS4944069 Discover the premium quality Cummins 4944069 - GEAR FLYWHEEL RING - NO LONGER AVAILABLE at our store, the ultimate destination...$637.85$582.68 -
CUMMINS 4931953 FUEL PUMP Original OEM part
CUMMINS
$4,264.65$3,895.76Engineered to empower your Cummins engine’s performance and reliability. Precision fuel delivery for optimized combustion and reduced emissions. Durable construction guarantees consistent operation...$4,264.65$3,895.76 -
CUMMINS 4931561 OIL SEAL Original OEM part PACK OF 2
CUMMINS
$68.39$62.48Experience unmatched sealing precision designed to protect engine integrity Crafted from premium materials for superior durability under extreme conditions Guaranteed OEM quality ensuring perfect...$68.39$62.48 -
CUMMINS 4919785 PROTECTIVE PLUG Original OEM part PACK OF 2
CUMMINS
$8.24$7.53Uncompromising Defense for Your Engine Durable design engineered to shield critical engine components from contaminants Precision-crafted for seamless fit and lasting protection Certified genuine...$8.24$7.53 -
CUMMINS 4919499 PROTECTIVE PLUG Original OEM part
CUMMINS
$32.25$29.46Engineered Precision for Ultimate Protection Durable Construction Designed to Withstand Harsh Conditions Guaranteed OEM Authenticity from Cummins Experience the Strength of Cummins Excellence with...$32.25$29.46 -
CUMMINS 4919431 PROTECTIVE PLUG Original OEM part
CUMMINS
$35.65$32.57Cummins 4919431 - PROTECTIVE PLUG MINS4919431 This Cummins 4919431 - PROTECTIVE PLUG is a must-have for maintaining your outdoor equipment. Trust in our store to provide you with genuine replacement...$35.65$32.57 -
CUMMINS 4388360 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for seamless emissions control and enhanced engine efficiency. Durable construction ensures long-lasting operation under the toughest conditions. 100% Genuine OEM Cummins...$11,856.70$10,831.10 -
CUMMINS 4388343 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Engineered to Elevate Your Power Advanced Emissions Control for Clean, Efficient Operation Durable construction for long-lasting service life under demanding conditions Authentic OEM precision from...$11,856.70$10,831.10 -
CUMMINS 4388342 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for uncompromising emission control and engine protection Enhances fuel efficiency and reduces noise for cleaner, quieter operation Certified Genuine CUMMINS OEM component for...$11,856.70$10,831.10 -
CUMMINS 4388295 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for uncompromising emissions control Designed to maximize engine health and fuel efficiency Certified Cummins OEM component for guaranteed compatibility and durability CUMMINS...$11,856.70$10,831.10 -
CUMMINS 4388202 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for clean, efficient power delivery Advanced emissions control for compliance and environmental care Guaranteed genuine OEM Cummins component ensuring perfect system...$11,856.70$10,831.10 -
CUMMINS 4388135 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$7,851.45$7,172.30Engineered for Precision, Built to Last Advanced Emissions Control: Optimizes exhaust purification for cleaner, compliant operation. Durable Construction: Designed to withstand rigorous engine...$7,851.45$7,172.30 -
CUMMINS 4388127 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered to enhance emissions control and durability Optimizes engine efficiency and ensures compliance with environmental standards 100% OEM authenticity, crafted by Cummins for perfect...$11,856.70$10,831.10 -
CUMMINS 4387835 BRACKET SENSOR Original OEM part
CUMMINS
$3,806.06$3,476.84Cummins 4387835 - BRACKET SENSOR - NO LONGER AVAILABLE MINS4387835 Find the elusive 4387835 - BRACKET SENSOR - NO LONGER AVAILABLE from Cummins at our store. We provide original replacement parts...$3,806.06$3,476.84 -
CUMMINS 4384808 SENSOR TEMPERATURE Original OEM part
CUMMINS
$604.73$552.42Cummins 4384808 - SENSOR TEMPERATURE - NO LONGER AVAILABLE MINS4384808 Browse no further for the genuine Cummins 4384808 - SENSOR TEMPERATURE - NO LONGER AVAILABLE, as our store is your ultimate...$604.73$552.42 -
CUMMINS 4378277 FLYWHEEL HOUSING Original OEM part
CUMMINS
$379.93$347.06Built for endurance: Designed to maintain structural integrity under intensive engine stresses. Precision engineered: Ensures perfect alignment with Cummins engines for optimal operation. Original...$379.93$347.06 -
CUMMINS 4377713 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Cummins 4377713 - AFTERTREATMENT DEVICE MINS4377713 Upgrade your equipment with the authentic 4377713 - AFTERTREATMENT DEVICE from Cummins. Our store is your go-to destination for genuine...$11,856.70$10,831.10 -
CUMMINS 4377464 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Power your engine's clean future with precision-engineered Cummins technology Designed for superior emissions control, reducing environmental impact without compromising performance Crafted to...$11,856.70$10,831.10 -
CUMMINS 4377462 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision engineered to uphold Cummins' legacy of excellence and reliability. Optimizes exhaust emissions reduction for cleaner, compliant operation. Enhances engine efficiency and fuel economy by...$11,856.70$10,831.10 -
CUMMINS 4377444 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Engineered precision driving cleaner power and lasting reliability Advanced emissions control technology for optimal environmental compliance Designed to enhance engine efficiency and extend system...$11,856.70$10,831.10 -
CUMMINS 4377324 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for optimal emissions management Enhances engine efficiency while reducing environmental impact 100% genuine OEM component from Cummins for guaranteed compatibility CUMMINS...$11,856.70$10,831.10 -
CUMMINS 4377316 AFTERTREATMENT DEVICE Original OEM part - SUPERSEDED FROM 4376672
CUMMINS
$11,856.70$10,831.10Powering precision with Cummins innovation Advanced aftertreatment technology ensuring cleaner emissions and stronger engine health Durable design built to withstand demanding operational...$11,856.70$10,831.10 -
CUMMINS 4377312 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Engineered to uphold Cummins’ legacy of reliability and innovation Advanced emissions control technology for cleaner, efficient operation Durable design tailored for long service life in demanding...$11,856.70$10,831.10 -
CUMMINS 4377284 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision engineered to sustain Cummins' legacy of power and reliability Advanced emissions control technology for cleaner, efficient operation Durable construction designed to withstand rigorous...$11,856.70$10,831.10 -
CUMMINS 4377276 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Engineered for Excellence: Precision-crafted to enhance emissions control and fuel efficiency. Durability You Can Trust: Built to withstand demanding operational conditions ensuring long-term...$11,856.70$10,831.10 -
CUMMINS 4377271 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision performance engineered for enduring power Advanced emissions reduction technology to keep your engine clean and compliant Durability that withstands demanding operating conditions 100%...$11,856.70$10,831.10 -
CUMMINS 4377256 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$7,851.45$7,172.30Engineered for precision: Delivering unmatched emissions reduction and reliability. Optimized for efficiency: Supports fuel economy while meeting stringent environmental standards. Original...$7,851.45$7,172.30 -
CUMMINS 4377250 AFTERTREATMENT DEVICE Original OEM part - SUPERSEDED FROM 4376621
CUMMINS
$11,856.70$10,831.10Cummins 4377250 - AFTERTREATMENT DEVICE MINS4377250 Find top-quality original Cummins 4377250 - AFTERTREATMENT DEVICE, SKU MINS4377250, at our store. Engineered for excellent performance and...$11,856.70$10,831.10 -
CUMMINS 4376607 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$7,629.50$6,969.55Precision engineered for enduring power and seamless emissions management Advanced aftertreatment technology for cleaner, efficient operation Durability designed to meet Cummins’ rigorous OEM...$7,629.50$6,969.55 -
CUMMINS 4376589 AFTERTREATMENT DEVICE Original OEM part
CUMMINS
$11,856.70$10,831.10Precision-engineered for uncompromising performance Advanced emissions reduction technology to meet stringent standards Durable OEM component crafted by Cummins for perfect fit and function The...$11,856.70$10,831.10