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 4104728 AFTERCOOLER HOUSING Original OEM part
CUMMINS
$12,227.48$11,169.81Precision engineered to power your performance Durable construction ensures optimal heat exchange efficiency Protects engine longevity by maintaining ideal air temperatures 100% genuine OEM Cummins...$12,227.48$11,169.81 -
CUMMINS 4096291 OIL TUBE BRACKET Original OEM part
CUMMINS
$166.70$152.29Engineered precision for uninterrupted power delivery Durable construction to safeguard your engine's oil flow system Designed exclusively by Cummins to guarantee seamless integration and optimal...$166.70$152.29 -
CUMMINS 4094069 CAMSHAFT Original OEM part
CUMMINS
$1,412.98$1,290.76Engineered to elevate your powertrain performance Precision-crafted camshaft for optimal timing and fuel efficiency Durable construction designed to withstand rigorous engine cycles 100% genuine OEM...$1,412.98$1,290.76 -
CUMMINS 4086661 WATER TRANSFER TUBE Original OEM part
CUMMINS
$1,381.30$1,261.82Power your system’s resilience with precision-engineered components from Cummins. Designed for reliable coolant circulation to safeguard engine integrity. Constructed with robust materials to...$1,381.30$1,261.82 -
CUMMINS 4080990 PROTECTIVE COVER Original OEM part
CUMMINS
$13.64$12.46Engineered for Endurance: Defend your power system with precision-crafted protection. Weather-Resistant Shield: Reliable safeguard against dust, debris, and environmental impact. Guaranteed OEM...$13.64$12.46 -
CUMMINS 4072864 FUEL PUMP BODY Original OEM part
CUMMINS
$1,342.99$1,226.83Unrivaled Precision Delivery: Designed to optimize fuel flow for peak engine performance and efficiency. Durable Construction: Built to withstand demanding operating conditions ensuring long-lasting...$1,342.99$1,226.83 -
CUMMINS 4071996 TURBOCHARGER OIL DRAIN CONNECTION Original OEM part
CUMMINS
$893.53$816.24Precision engineered to uphold Cummins' legacy of durable power solutions Ensures efficient turbocharger oil drainage to maintain engine health Built to sustain high-temperature and pressure...$893.53$816.24 -
CUMMINS 4071913 FLEXIBLE HOSE Original OEM part
CUMMINS
$248.88$227.35Dependable connection for seamless engine operation High-resilience flexible design to withstand demanding conditions Guaranteed OEM quality from Cummins for perfect compatibility CUMMINS 4071913...$248.88$227.35 -
CUMMINS 4067533 ROCK SHIELD Original OEM part
CUMMINS
$454.63$415.30Unyielding protection for your power system. Robust rock shield guards key components against debris and damage. Precision-engineered to maintain optimal system integrity under harsh conditions...$454.63$415.30 -
CUMMINS 4065759 OIL TUBE BRACKET Original OEM part
CUMMINS
$1,271.91$1,161.89Engineered to maintain precise oil tube positioning for efficient lubrication and extended engine life Crafted from high-grade materials to endure rigorous operational demands and harsh...$1,271.91$1,161.89 -
CUMMINS 4065716 MALE ADAPTER ELBOW Original OEM part
CUMMINS
$222.95$203.66Precision-engineered durability for seamless power solutions Corrosion-resistant design ensures long-term reliability Optimized flow path to enhance engine performance and reduce wear Genuine OEM...$222.95$203.66 -
CUMMINS 4055615 ELECTRICAL BOX Original OEM part
CUMMINS
$860.06$785.67Engineered to power excellence and dependability in every connection. Robust electrical housing designed to shield critical circuitry from environmental stress. Precise OEM manufacturing guarantees...$860.06$785.67 -
CUMMINS 4054945 AIR CYLINDER BRACKET Original OEM part
CUMMINS
$167.92$153.39Engineered to perform, built to last — the backbone for your Cummins air cylinder support. Robust design ensuring optimal airflow and component stability under demanding conditions. Precision fit...$167.92$153.39 -
CUMMINS 4037748 V BAND CLAMP Original OEM part
CUMMINS
$322.05$294.19Engineered for Precision and Durability: The CUMMINS 4037748 V BAND CLAMP delivers unmatched strength to maintain your generator’s critical connections securely. Enhanced Power System Efficiency:...$322.05$294.19 -
CUMMINS 4016136 FLEXIBLE HOSE Original OEM part
CUMMINS
$1,858.78$1,698.00Engineered Excellence for Reliable Power Transmission Durable construction designed to withstand extreme operational conditions Precision fit ensuring optimal fluid flow and system...$1,858.78$1,698.00 -
CUMMINS 4015593 SPARK PLUG ADAPTER TUBE Original OEM part
CUMMINS
$407.38$372.14Precision engineered to elevate your power system’s reliability Maximizes spark plug fit and protection in harsh operating conditions Engineered for endurance to support long-term engine...$407.38$372.14 -
CUMMINS 4015548 MOUNTING SPACER Original OEM part
CUMMINS
$55.80$50.98Precision alignment for lasting engine stability Durability engineered to withstand rigorous operating conditions Certified genuine OEM Cummins component for guaranteed compatibility Secure Your...$55.80$50.98 -
CUMMINS 4014671 SOCKET HEAD CAPSCREW Original OEM part
CUMMINS
$45.97$42.00Precision that powers every connection Manufactured to stringent Cummins standards for exceptional strength and reliability Constructed from premium materials to resist wear, corrosion, and...$45.97$42.00 -
CUMMINS 4013948 V BAND CLAMP Original OEM part
CUMMINS
$12,459.89$11,382.11Engineered to excel under pressure, ensuring unparalleled clamp security. Robust build guarantees sustained tightness against vibrations and thermal cycles. Crafted by Cummins as a genuine OEM...$12,459.89$11,382.11 -
CUMMINS 4013741 MALE UNION ELBOW Original OEM part
CUMMINS
$305.66$279.22Precision engineered for uncompromising durability and seamless integration in Cummins power systems Robust male union elbow designed to maintain optimal fluid flow and prevent leaks Crafted...$305.66$279.22 -
CUMMINS 4013254 CONNECTION BRACKET Original OEM part
CUMMINS
$2,070.53$1,891.43Crafted for precision and reliability within your power system Robust construction delivering enduring strength under demanding conditions Engineered to maintain optimal alignment and connection...$2,070.53$1,891.43 -
CUMMINS 4011978 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$129.18$118.01Engineered to endure, crafted to perform Precision-machined flange head for secure fastening under extreme conditions Corrosion-resistant finish for extended service life 100% OEM Cummins part...$129.18$118.01 -
CUMMINS 4009434 PLAIN HOSE Original OEM part
CUMMINS
$77.42$70.72Cummins 4009434 - PLAIN HOSE MINS4009434 Find the genuine Cummins 4009434 - PLAIN HOSE at our store, the ultimate destination for high-quality replacement parts. With a commitment to authenticity...$77.42$70.72 -
CUMMINS 4009382 FLEXIBLE HOSE Original OEM part
CUMMINS
$961.87$878.67Precision-engineered for enduring reliability and seamless fitment Exceptional resistance to heat, vibration, and wear for extended service life Manufactured as a genuine OEM Cummins component,...$961.87$878.67 -
CUMMINS 4007513 CONNECTING ROD BEARING Original OEM part
CUMMINS
$432.39$394.99Engineered for enduring power and precision High-strength materials designed to reduce wear and extend engine life Precision fit guarantees seamless integration with Cummins engines This is an...$432.39$394.99 -
CUMMINS 4000528 INSTRUMENT PANEL Original OEM part
CUMMINS
$1,731.60$1,581.82Cummins 4000528 - INSTRUMENT PANEL MINS4000528 Explore the top-quality 4000528 - INSTRUMENT PANEL from Cummins at our store, offering the best original replacement parts for lawn mowers and outdoor...$1,731.60$1,581.82 -
CUMMINS 3978380 CYLINDER HEAD GASKET Original OEM part
CUMMINS
$2,622.59$2,395.74Precision engineered to uphold Cummins’ legacy of dependable power. Superior sealing integrity for enhanced engine efficiency and longevity. Manufactured using premium materials to withstand high...$2,622.59$2,395.74 -
CUMMINS 3977571 DELPH FUEL INJECTION PUMP Original OEM part
CUMMINS
$6,553.00$5,986.17Cummins 3977571 - DELPH FUEL INJECTION PUMP MINS3977571 Discover the genuine 3977571 - DELPH FUEL INJECTION PUMP by Cummins at our store. Our commitment to quality ensures that you receive original...$6,553.00$5,986.17 -
CUMMINS 3976375 DELPH FUEL INJECTION PUMP Original OEM part
CUMMINS
$7,443.50$6,799.64Engineered for exact fit and uncompromising performance Delivers consistent fuel injection for optimal engine efficiency Crafted as an authentic OEM Cummins replacement to preserve engine...$7,443.50$6,799.64 -
CUMMINS 3972963 SENSOR BRACKET Original OEM part
CUMMINS
$135.64$123.91Engineered precision for optimal sensor stability and accuracy Durable construction designed to withstand harsh operating conditions Certified OEM quality from Cummins ensures trusted...$135.64$123.91 -
CUMMINS 3968693 AIR TRANSFER PIPE Original OEM part
CUMMINS
$320.44$292.72Engineered Excellence: Designed to maintain precise air transfer for peak engine output. Durability Assured: Built to endure rigorous operating environments, extending engine life. Precision Fit:...$320.44$292.72 -
CUMMINS 3968568 FRONT ENGINE SUPPORT Original OEM part
CUMMINS
$212.43$194.05Cummins 3968568 - FRONT ENGINE SUPPORT MINS3968568 Find top-quality original Cummins 3968568 - FRONT ENGINE SUPPORT at our store, your ultimate one-stop destination for premium replacement parts...$212.43$194.05 -
CUMMINS 3968564 DELPH FUEL INJECTION PUMP Original OEM part
CUMMINS
$5,874.83$5,366.66Engineered to fuel your trusted power with precision and endurance. Advanced metering technology ensures optimal fuel delivery for maximum engine efficiency. Durable construction withstands the...$5,874.83$5,366.66 -
CUMMINS 3959775 EXHAUST OUT CONNECTION BRACE Original OEM part
CUMMINS
$370.14$338.12Precision in every connection, strength in every mile. Robust design enhances exhaust system stability for reduced wear. Corrosion-resistant materials ensure long-lasting performance in demanding...$370.14$338.12 -
FLEETGUARD 3959404 PACK HEAD Original FLEETGUARD OEM part
FLEETGUARD
$712.42$650.79Fleetguard 3959404 - PACK HEAD FLG3959404 Our online store is proud to offer the genuine Fleetguard 3959404 - PACK HEAD, SKU FLG3959404. Our commitment to quality ensures that you are getting the...$712.42$650.79 -
CUMMINS 3936424 FLYWHEEL Original OEM part
CUMMINS
$3,635.85$3,321.35Precision-engineered power transfer for unmatched performance. Robust construction designed to withstand demanding engine cycles. Certified genuine OEM Cummins component ensuring perfect fit and...$3,635.85$3,321.35 -
CUMMINS 3917729 HEX FLANGE HEAD CAPSCREW Original OEM part
CUMMINS
$23.32$21.30Engineered to secure performance with uncompromising strength and precision Designed to resist corrosion and provide consistent torque retention under demanding conditions Genuine OEM Cummins...$23.32$21.30 -
CUMMINS 3908316 PLAIN WASHER Original OEM part PACK OF 2
CUMMINS
$15.14$13.83Precision Crafted for Endurance: Engineered to support steady assembly and reliable performance under demanding conditions. Essential for Secure Operation: This plain washer guarantees even pressure...$15.14$13.83 -
CUMMINS 3885996 PAINT Original OEM part PACK OF 4
CUMMINS
$1,342.07$1,225.98Preserve the power, protect the legacy. Precision-formulated paint for superior adhesion and lasting durability. Designed to withstand harsh conditions, maintaining your equipment's professional...$1,342.07$1,225.98 -
CUMMINS 3878372 EXHAUST OUTLET CONNECTION Original OEM part
CUMMINS
$619.47$565.89Cummins 3878372 - EXHAUST OUTLET CONNECTION MINS3878372 Find the genuine 3878372 - EXHAUST OUTLET CONNECTION by Cummins at our store, the ultimate destination for original replacement parts. With...$619.47$565.89