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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ONAN A030J317 COPPER BUSBAR Original ONAN/CUMMINS OEM part
ONAN
$89.97$82.19Engineered Precision for Unmatched Power Flow Exceptional Conductivity Enhances Generator Efficiency Durable Copper Construction Resists Corrosion and Wear Authentic OEM Part from Onan for Proven...$89.97$82.19 -
ONAN 3192245 CONTROL BOX COVER Original ONAN/CUMMINS OEM part
ONAN
$418.50$382.30Protect your power—engineered with precision for dependable performance. Durable construction shields control components from environmental damage. Designed for exact fit to maintain system...$418.50$382.30 -
ONAN 4059549 DOOR INSULATION Original ONAN/CUMMINS OEM part
ONAN
$131.00$119.67Cummins DOOR INSULATION 405-9549 Upgrade your outdoor equipment with the "Cummins" DOOR INSULATION (SKU: 405-9549). Our store is your go-to destination for authentic replacement parts, providing you...$131.00$119.67 -
ONAN 3350256 MOMENTUM TO M CABLE ASSEMBLY Original ONAN/CUMMINS OEM part
ONAN
$258.23$235.89Cummins MOMENTUM TO M CABLE ASSEMBLY 335-0256 Find the genuine Cummins MOMENTUM TO M CABLE ASSEMBLY with SKU 335-0256 at our store. This essential part ensures top-notch performance for your...$258.23$235.89 -
ONAN A032X328 134178 LIFT RIN FUEL PUMP GASKET Original ONAN/CUMMINS OEM part
ONAN
$29.86$27.28Precision in every seal, power in every turn. Durable gasket designed for perfect fuel pump sealing. Protects fuel system integrity to enhance engine longevity. Proudly engineered and manufactured...$29.86$27.28 -
ONAN A030J321 COPPER BUSBAR Original ONAN/CUMMINS OEM part
ONAN
$64.92$59.30Power your system with precision-crafted components Ensures superior electrical conductivity for consistent generator performance Constructed from high-quality copper for enhanced durability and...$64.92$59.30 -
ONAN 5031369 LOWER RADIATOR HOSE Original ONAN/CUMMINS OEM part
ONAN
$124.16$113.42Cummins LOWER RADIATOR HOSE 503-1369 Discover the genuine Cummins LOWER RADIATOR HOSE, SKU 503-1369, at our online store. Our commitment to quality ensures you get the perfect fit for your equipment...$124.16$113.42 -
ONAN 3190030 TRANSDUCER PLATE Original ONAN/CUMMINS OEM part
ONAN
$22.90$20.92Cummins TRANSDUCER PLATE 319-0030 Find top-quality original Cummins TRANSDUCER PLATE (SKU: 319-0030) at our online store. Crafted with precision and reliability, this essential part ensures optimal...$22.90$20.92 -
ONAN A034C669 HOSE 4.0 TO 3.0 INTAKE HUMP Original ONAN/CUMMINS OEM part
ONAN
$68.39$62.48Cummins HOSE 4.0 TO 3.0 INTAKE HUMP NO LONGER AVAILABLE A034C669 Discover the "HOSE 4.0 TO 3.0 INTAKE HUMP NO LONGER AVAILABLE" by Cummins, SKU "A034C669", only at our online store. We stand out as...$68.39$62.48 -
ONAN A026M517 AIR TUBE Original ONAN/CUMMINS OEM part
ONAN
$85.44$78.05Precision airflow management designed for dependable generator operation. Enhances engine efficiency by maintaining optimal air intake flow. Durable, heat-resistant construction ensures extended...$85.44$78.05 -
ONAN A034L017 FUEL SYSTEM MODULE SECONDARY AIR INJECTION Original ONAN/CUMMINS OEM part
ONAN
$93.23$85.16Precision-engineered control for cleaner emissions and efficient combustion Enhances engine longevity and optimizes fuel economy under demanding conditions Certified genuine ONAN OEM part engineered...$93.23$85.16 -
ONAN 1819232 FUEL LINE Original ONAN/CUMMINS OEM part
ONAN
$117.48$107.32Precision-engineered to keep your generator running seamlessly. Durable material composition ensures resistance to wear and fuel corrosion. Exact fitment designed exclusively by ONAN for unmatched...$117.48$107.32 -
ONAN A040R661 VALVE SPRING Original ONAN/CUMMINS OEM part
ONAN
$34.35$31.38Cummins VALVE SPRING A040R661 Discover the authentic Cummins VALVE SPRING with SKU A040R661, ensuring precision and reliability for your outdoor equipment. Our store stands out as the top choice for...$34.35$31.38 -
ONAN 338430002 EN BATTERY CHRGER HARNES Original ONAN/CUMMINS OEM part
ONAN
$147.15$134.42Precision engineered for dependable battery charging excellence Robust design ensures long-lasting performance under demanding conditions Optimized to maintain electrical system integrity and engine...$147.15$134.42 -
ONAN 5050327 PIPE COUPLING Original ONAN/CUMMINS OEM part
ONAN
$117.22$107.08Cummins PIPE COUPLING 505-0327 Our store proudly offers the original "PIPE COUPLING" with the SKU "505-0327" from the reputable brand Cummins. This essential replacement part ensures optimal...$117.22$107.08 -
ONAN 98870901 INFORMATION LABEL Original ONAN/CUMMINS OEM part
ONAN
$10.63$9.71Cummins INFORMATION LABEL 98-8709-01 Discover the genuine "INFORMATION LABEL" by Cummins, SKU 98-8709-01, only at our store. Our commitment to providing authentic replacement parts ensures that your...$10.63$9.71 -
ONAN A029L980 CLAMP Original ONAN/CUMMINS OEM part
ONAN
$36.13$33.00Precision engineered for seamless power continuity Durable clamp design ensures secure and stable connections Corrosion-resistant materials for extended service life Certified Genuine OEM part from...$36.13$33.00 -
ONAN 5032228 BYPASS OIL HOSE Original ONAN/CUMMINS OEM part
ONAN
$36.23$33.09Engineered for Excellence: The ONAN 503-2228 bypass oil hose delivers seamless oil circulation critical for engine longevity. Durability Under Pressure: Crafted from premium materials to endure...$36.23$33.09 -
ONAN 1304737 RADIATOR SHROUD PANEL Original ONAN/CUMMINS OEM part
ONAN
$143.49$131.08Cummins RADIATOR SHROUD PANEL 130-4737 Find genuine quality and trusted performance with the Cummins RADIATOR SHROUD PANEL, SKU 130-4737. Our store offers the best price with fast shipping, ensuring...$143.49$131.08 -
ONAN A030X865 684640 20A 120V RECEPTCLE Original ONAN/CUMMINS OEM part
ONAN
$108.76$99.35Precision engineered for enduring engine harmony Ensures optimal electrical connectivity and system reliability Designed to withstand demanding generator environments 100% genuine OEM component from...$108.76$99.35 -
ONAN J0503019611 VENT LINE 1 RUBBER HOSE Original ONAN/CUMMINS OEM part
ONAN
$67.83$61.96Cummins VENT LINE 1 RUBBER HOSE J0503-0196-11 Finding the perfect replacement part for your outdoor equipment can be a challenge, but look no further. Our store offers the original VENT LINE 1...$67.83$61.96 -
ONAN 3063689 BRACKET ACTUATOR XFR Original ONAN/CUMMINS OEM part
ONAN
$360.04$328.90Cummins BRACKET ACTUATOR XFR 306-3689 Find the Cummins "BRACKET ACTUATOR XFR" (SKU: "306-3689") at our store for reliable performance. Manufactured with precision for a perfect fit and utmost...$360.04$328.90 -
ONAN 319547102 BASE CONTROL BOX Original ONAN/CUMMINS OEM part
ONAN
$117.42$107.26Cummins BASE CONTROL BOX NO LONGER AVAILABLE 319-5471-02 Discover the original BASE CONTROL BOX NO LONGER AVAILABLE from Cummins, with SKU 319-5471-02. While this item may no longer be available...$117.42$107.26 -
ONAN A041L448 FUEL SYSTEM MODULE SECONDARY AIR INJECTION Original ONAN/CUMMINS OEM part
ONAN
$52.48$47.94Precision-engineered power for unwavering reliability Ensures optimal secondary air injection for cleaner emissions and enhanced engine efficiency Durable design built to support extended generator...$52.48$47.94 -
ONAN 1150520 ROCKER ARM Original ONAN/CUMMINS OEM part
ONAN
$90.09$82.30Cummins ROCKER ARM 115-0520 Discover the genuine Cummins ROCKER ARM, SKU 115-0520, at our online store—your ultimate destination for premium replacement parts. Engineered to exact specifications,...$90.09$82.30 -
ONAN 1481118 FUEL FILTER ELEMENT Original ONAN/CUMMINS OEM part
ONAN
$105.76$96.61Precision-engineered fuel filtration for unwavering power delivery Maintains engine health by effectively removing contaminants 100% genuine ONAN OEM component designed for exact fit and...$105.76$96.61 -
ONAN 405998802 DOOR INSULATION Original ONAN/CUMMINS OEM part
ONAN
$114.19$104.32Cummins DOOR INSULATION 405-9988-02 Transform your outdoor equipment's performance with the original Cummins DOOR INSULATION (SKU: 405-9988-02). Designed for durability and perfect fit, this...$114.19$104.32 -
ONAN 5050759 COMBINATION NIPPLE Original ONAN/CUMMINS OEM part
ONAN
$177.13$161.81Deliver uncompromised reliability with an essential component designed for seamless integration. Precision-engineered for peak performance in demanding generator environments. Manufactured as a...$177.13$161.81 -
ONAN 1401271 AIR CLEANER MOUNTING BRACKET Original ONAN/CUMMINS OEM part
ONAN
$79.16$72.31Engineered Excellence for Lasting Reliability Precision Fit Ensuring Optimal Air Filtration Support Durable Construction to Withstand Tough Operating Conditions 100% Genuine OEM Onan Part for...$79.16$72.31 -
ONAN 3383992 ENGINE HEATER HARNESS Original ONAN/CUMMINS OEM part
ONAN
$84.87$77.53Empower your generator's resilience with authentic ONAN precision Designed for efficient engine heating to guarantee smooth cold starts Features robust construction to withstand rigorous operating...$84.87$77.53 -
ONAN 503235006 COOLANT HOSE Original ONAN/CUMMINS OEM part
ONAN
$43.85$40.06Precision-engineered cooling solution to sustain your engine’s optimal temperature. Durable construction designed to withstand extreme heat and pressure for long-lasting use. Certified OEM part from...$43.85$40.06 -
ONAN A029X853 RADIATOR BRACKET Original ONAN/CUMMINS OEM part
ONAN
$37.02$33.81Cummins RADIATOR BRACKET A029X853 Find genuine Cummins RADIATOR BRACKET, SKU A029X853, at our store. Trust in our top-notch quality and ensure a perfect fit for your equipment. With fast shipping,...$37.02$33.81 -
ONAN 5100250 BALL BEARING Original ONAN/CUMMINS OEM part
ONAN
$79.38$72.52Reliability Engineered for Endurance: Precision-crafted to ensure consistent, smooth operation under demanding conditions. Enhanced Load Performance: Reduces friction and wear, supporting optimal...$79.38$72.52 -
ONAN A029T848 ACCESS PANEL Original ONAN/CUMMINS OEM part
ONAN
$113.06$103.28Cummins ACCESS PANEL A029T848 When it comes to finding original ACCESS PANEL A029T848 by Cummins, our online store stands out as the ultimate destination. With a commitment to offering only genuine...$113.06$103.28 -
ONAN A034G880 HOSE Original ONAN/CUMMINS OEM part
ONAN
$62.87$57.43Engineered Excellence for Reliable Power Delivery Durable construction designed to withstand high temperatures and pressure Critical for maintaining optimal fluid flow and engine...$62.87$57.43 -
ONAN 3063716 BRACKET SEC DISC BASE Original ONAN/CUMMINS OEM part
ONAN
$83.97$76.71Engineered for reliability, crafted for endurance. Precision-fit bracket ensuring stable disc base alignment. Durable construction designed to withstand harsh operating conditions. 100% genuine OEM...$83.97$76.71 -
ONAN 338348902 ADAPTER HARNESS Original ONAN/CUMMINS OEM part
ONAN
$114.90$104.97Precision engineered for seamless power connectivity Durable construction ensuring consistent performance in critical conditions Designed exclusively by ONAN for flawless integration Authentic OEM...$114.90$104.97 -
ONAN 5411420 E STOP INSTALLATION KIT Original ONAN/CUMMINS OEM part
ONAN
$182.89$167.07Dependable Performance for Every Engine – Trust the ONAN 541-1420 to keep your diesel engine safe and operational. Precision Engineered for Seamless Installation – Designed to fit perfectly and...$182.89$167.07 -
ONAN 1307712 WATER HEATER TUBE Original ONAN/CUMMINS OEM part
ONAN
$38.37$35.05Cummins WATER HEATER TUBE 130-7712 Find the perfect replacement WATER HEATER TUBE with SKU 130-7712 from Cummins. You can trust our store for original parts, ensuring top-notch quality and...$38.37$35.05 -
ONAN 319568002 BACK CONTROL ACCESS PANEL Original ONAN/CUMMINS OEM part
ONAN
$56.42$51.54Precision-engineered for seamless integration and reliable operation. Enhances accessibility while maintaining generator safety and performance. Constructed with durable materials to withstand...$56.42$51.54