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 4016037 PLAIN WASHER Original OEM part
CUMMINS
$546.95$499.64Precision engineered for seamless integration and unmatched durability Essential for maintaining structural integrity under demanding engine conditions Manufactured as a genuine OEM component by...$546.95$499.64 -
CUMMINS 4016016 BREATHER BRACKET Original OEM part
CUMMINS
$561.90$513.30Cummins 4016016 - BREATHER BRACKET MINS4016016 Find the authentic 4016016 - BREATHER BRACKET by Cummins, SKU "MINS4016016", exclusively at our store. Made to fit perfectly and designed for optimal...$561.90$513.30 -
CUMMINS 4016008 FEMALE UNION TEE Original OEM part
CUMMINS
$513.63$469.20Precision engineered to power your performance. Robust corrosion resistance ensures enduring service life. Seamless fit for perfect system compatibility. Certified Cummins OEM part guaranteeing...$513.63$469.20 -
CUMMINS 4015962 CLIP Original OEM part
CUMMINS
$19.55$17.86Engineered for precision and durability to maintain your Cummins system’s peak performance. Essential for secure assembly ensuring components stay firmly in place under demanding conditions. Genuine...$19.55$17.86 -
CUMMINS 4015961 CLIP Original OEM part
CUMMINS
$111.78$102.11Precision engineered for unmatched durability Ensures secure and reliable component retention Designed to maintain optimal generator system integrity 100% Genuine OEM Cummins part for guaranteed...$111.78$102.11 -
CUMMINS 4015960 CLIP Original OEM part
CUMMINS
$128.72$117.58Precision-crafted for dependable power system integrity Robust design ensures lasting durability under demanding conditions Essential for maintaining original equipment performance standards 100%...$128.72$117.58 -
CUMMINS 4015959 CLIP Original OEM part
CUMMINS
$1,623.90$1,483.44Engineered for Precision and Durability: The CUMMINS 4015959 CLIP delivers uncompromising quality that upholds your equipment’s structural integrity. Seamless Compatibility: Designed specifically...$1,623.90$1,483.44 -
CUMMINS 4015958 CLIP Original OEM part PACK OF 2
CUMMINS
$27.27$24.91Precision at the core of dependable power solutions Engineered for exact compatibility with Cummins systems Durable design to withstand demanding operating conditions Manufactured as a genuine OEM...$27.27$24.91 -
CUMMINS 4015936 PROTECTIVE COVER Original OEM part
CUMMINS
$519.96$474.98Engineered Precision for Unmatched Protection Durable Construction Designed for Long-Term Reliability Genuine OEM Part Direct from Cummins for Perfect Compatibility Experience the Power of...$519.96$474.98 -
CUMMINS 4015933 PROTECTIVE COVER Original OEM part
CUMMINS
$492.50$449.90Unrivaled protection engineered by Cummins for your power system's longevity Durable materials designed to shield critical components from environmental impact Precision fit ensuring optimal...$492.50$449.90 -
CUMMINS 4015854 WIRING BRACE Original OEM part
CUMMINS
$5,471.53$4,998.24Cummins 4015854 - WIRING BRACE MINS4015854 Find the authentic 4015854 - WIRING BRACE by Cummins at our store. This high-quality wiring brace, SKU MINS4015854, is a vital component for maintaining...$5,471.53$4,998.24 -
CUMMINS 4015851 WIRING BRACE Original OEM part
CUMMINS
$5,471.53$4,998.24Reliability anchored in every connection. Robust design ensuring steadfast wiring support. Precision-engineered to maintain optimal engine performance. 100% Genuine OEM Cummins component for...$5,471.53$4,998.24 -
CUMMINS 4015836 WIRING BRACE Original OEM part
CUMMINS
$5,765.53$5,266.81Precision engineered for steadfast reliability in every connection. Heavy-duty construction that withstands demanding generator environments. Essential for securing wiring harnesses to prevent...$5,765.53$5,266.81 -
CUMMINS 4015826 WIRING HARNESS Original OEM part
CUMMINS
$392.40$358.46Power your engine with precision and reliability – the CUMMINS 4015826 wiring harness is built to perform. Engineered for seamless connectivity and long-lasting durability in demanding diesel...$392.40$358.46 -
CUMMINS 4015813 OIL TUBE BRACKET Original OEM part
CUMMINS
$419.82$383.50Engineered Precision for Unmatched Stability Durable Construction Designed to Withstand High-Pressure Oil Flow Ensures Proper Alignment and Secure Mounting of Oil Tubes Certified Genuine OEM by...$419.82$383.50 -
CUMMINS 4015710 ELECTRICAL TERMINAL Original OEM part
CUMMINS
$34.02$31.07Engineered Excellence for Unmatched Power Connectivity Precision-designed for Optimal Electrical Conductivity Durability that Supports Long-Term Generator Performance Manufactured as an authentic...$34.02$31.07 -
CUMMINS 4015671 FEMALE PIPE TEE Original OEM part
CUMMINS
$242.02$221.08Precision engineered for unmatched durability and seamless integration. Robust corrosion resistance ensures extended service life under demanding conditions. Designed exclusively by CUMMINS as a...$242.02$221.08 -
CUMMINS 4015670 PLAIN HEX NIPPLE Original OEM part
CUMMINS
$142.23$129.92Precision engineered for seamless integration into your Cummins power system Crafted from high-grade materials ensuring durability and corrosion resistance Guaranteed genuine OEM by Cummins for...$142.23$129.92 -
CUMMINS 4015592 SPARK PLUG ADAPTER TUBE Original OEM part
CUMMINS
$565.86$516.91Cummins 4015592 - SPARK PLUG ADAPTER TUBE MINS4015592 Upgrade your outdoor equipment with the original Cummins 4015592 Spark Plug Adapter Tube. Our store ensures top-notch quality and authenticity...$565.86$516.91 -
CUMMINS 4015587 VALVE INSERT Original OEM part
CUMMINS
$127.25$116.24Cummins 4015587 - VALVE INSERT MINS4015587 Find genuine Cummins 4015587 - VALVE INSERT here at our store. Made to the highest standards, this product ensures optimal performance and durability for...$127.25$116.24 -
CUMMINS 4015585 VALVE INSERT Original OEM part
CUMMINS
$272.02$248.49Precision engineered to uphold CUMMINS' legacy of dependable power. Durable valve insert designed for optimal sealing and smooth engine operation. Ensures superior wear resistance to extend engine...$272.02$248.49 -
CUMMINS 4015580 VALVE INSERT Original OEM part
CUMMINS
$949.72$867.57Power your engine with authentic precision engineering for unmatched durability and performance. Engineered to provide superior sealing for enhanced combustion efficiency and reduced emissions...$949.72$867.57 -
CUMMINS 4015556 TUBE CBT MIXTURE TRANSFER Original OEM part
CUMMINS
$2,499.95$2,283.70Cummins 4015556 - TUBE CBT MIXTURE TRANSFER - NO LONGER AVAILABLE MINS4015556 Explore our store for the original Cummins 4015556 - TUBE CBT MIXTURE TRANSFER - NO LONGER AVAILABLE, known for its...$2,499.95$2,283.70 -
CUMMINS 4015528 LINER SEAL RING Original OEM part
CUMMINS
$882.47$806.14Engineered to perfection for uncompromising sealing integrity Protects engine components by preventing coolant and oil contamination Manufactured as an OEM part by Cummins for guaranteed...$882.47$806.14 -
CUMMINS 4015475 PLAIN HOSE COUPLING Original OEM part
CUMMINS
$659.49$602.45Precision engineered for seamless integration and lasting durability Designed to maintain optimal fluid flow and mechanical integrity Official OEM component from Cummins for guaranteed compatibility...$659.49$602.45 -
CUMMINS 4015447 SLEEVE Original OEM part
CUMMINS
$584.18$533.65Engineered for Precision and Dependability in Every Installation Durable Construction Ensuring Optimal Engine Performance Designed to Maintain Engine Integrity and Minimize Wear 100% Genuine OEM...$584.18$533.65 -
CUMMINS 4015433 PROTECTIVE COVER Original OEM part
CUMMINS
$475.18$434.08Cummins 4015433 - PROTECTIVE COVER MINS4015433 Discover the genuine Cummins 4015433 - PROTECTIVE COVER at our store, your ultimate destination for quality replacement parts. This product, SKU...$475.18$434.08 -
CUMMINS 4015401 FUEL SUPPLY TUBE Original OEM part
CUMMINS
$1,239.05$1,131.87Experience precision-crafted reliability built to power your engine efficiently Designed for optimal fuel flow to maintain engine performance and longevity Constructed from premium materials to...$1,239.05$1,131.87 -
CUMMINS 4015295 COMBUSTION MIXTURE TRANSFER TUBE Original OEM part
CUMMINS
$952.90$870.48Cummins 4015295 - COMBUSTION MIXTURE TRANSFER TUBE - - NO LONGER AVAILABLE MINS4015295 At our store, you can find the original 4015295 - COMBUSTION MIXTURE TRANSFER TUBE by Cummins. This...$952.90$870.48 -
CUMMINS 4015118 AIR INTAKE CONNECTION Original OEM part
CUMMINS
$2,466.35$2,253.01Engineered precision for unmatched airflow integrity Durable construction designed to withstand demanding engine conditions 100% genuine OEM Cummins component for guaranteed compatibility CUMMINS...$2,466.35$2,253.01 -
CUMMINS 4015023 CROSSHEAD ADJUSTING SCREW Original OEM part
CUMMINS
$48.36$44.18Precision engineered for trusted power and longevity Provides exact adjustment control for optimal engine function Ensures seamless integration with Cummins engine components 100% genuine OEM from...$48.36$44.18 -
CUMMINS 4015005 FUEL SUPPLY TUBE Original OEM part
CUMMINS
$1,896.80$1,732.73Precision engineered to maintain flawless fuel flow under demanding conditions Constructed from premium materials to guarantee durability and long service life 100% genuine OEM part from Cummins...$1,896.80$1,732.73 -
CUMMINS 4014969 CYLINDER HEAD COVER Original OEM part
CUMMINS
$758.60$692.99Engineered to safeguard with unmatched precision Robust construction for optimum durability under demanding conditions Seamless fit and finish as an authentic OEM CUMMINS component CUMMINS 4014969...$758.60$692.99 -
CUMMINS 4014833 REGULAR HEX JAM NUT Original OEM part
CUMMINS
$21.97$20.07Precision-engineered reliability: Engineered to maintain optimal tension and secure fit under high stress. Durable construction: Crafted from premium materials to withstand extreme operational...$21.97$20.07 -
CUMMINS 4014827 EXTERNAL CONTROL MODULE WIRING HARNESS Original OEM part
CUMMINS
$2,332.92$2,131.12Precision-engineered for seamless power control integration. Durable wiring harness designed for peak electrical performance and reliability. Fully compatible and crafted specifically by Cummins for...$2,332.92$2,131.12 -
CUMMINS 4014593 HOSE CLAMP Original OEM part
CUMMINS
$66.27$60.54Secure your engine's heartbeat with precision-engineered durability. Robust construction to maintain uncompromising hose integrity under demanding conditions. Designed to withstand high vibration...$66.27$60.54 -
CUMMINS 4014590 COLLECTOR Original OEM part
CUMMINS
$1,195.72$1,092.29Cummins 4014590 - COLLECTOR MINS4014590 Find genuine replacement 4014590 - COLLECTOR by Cummins at our online store. Rest assured that you are purchasing a quality product specifically designed for...$1,195.72$1,092.29 -
CUMMINS 4014563 FLYWHEEL HOUSING COVER Original OEM part
CUMMINS
$648.92$592.79Engineered Precision Meets Enduring Strength Durable construction shields critical engine components Designed for seamless compatibility with Cummins engines Certified genuine OEM part to maintain...$648.92$592.79 -
CUMMINS 4014548 6BT5.9 VALVE STEM GUIDE Original OEM part
CUMMINS
$207.32$189.38Precision engineered for uncompromising performance Enhances valve stability for smooth engine operation Durability that sustains long-term engine health 100% genuine OEM Cummins part, guaranteed...$207.32$189.38 -
CUMMINS 4014544 CONNECTION AFTERCOOLER OUTLET Original OEM part
CUMMINS
$7,741.74$7,072.08Engineered precision meets lasting durability Optimized for efficient aftercooler airflow management Durable construction ensuring superior thermal resistance 100% Genuine OEM Cummins component,...$7,741.74$7,072.08