ranroswang@hksparkling.com 
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HIGH-QUALITY 280-3749 GEAR INYECTION PUMP for Caterpillar Engine Equipment 303.5C, 303.5D, 303C CR, 304C CR, 304D CR Excavators
The HIGH-QUALITY 280-3749 GEAR INJECTION PUMP is a premium fuel system component meticulously engineered for Caterpillar Engine Equipment, specifically tailored to meet the precise fuel delivery demands of 303.5C, 303.5D, 303C CR, 304C CR, and 304D CR Excavators. As a core part of the machinery’s engine fuel supply system, this gear injection pump delivers a consistent, metered flow of fuel to the engine cylinders at optimal pressure, ensuring efficient combustion, stable power output, and smooth operation even during prolonged heavy-duty construction tasks.
Designed to seamlessly integrate with Caterpillar’s engine architecture, it delivers reliable performance that enhances fuel efficiency, engine responsiveness, and overall operational durability.
Key Features
· Custom-engineered for perfect compatibility with Caterpillar 303.5C, 303.5D, 303C CR, 304C CR, 304D CR Excavators
· Optimized gear design for consistent fuel pressure and precise fuel metering
· Stable operation under varying load conditions to maintain engine performance
· Enhanced sealing structure to prevent fuel leakage and ensure system integrity
· Strict adherence to Caterpillar OEM specifications for seamless integration and reliable fuel delivery
Compatible Models
· Caterpillar Engine Equipment Excavators: 303.5C, 303.5D, 303C CR, 304C CR, 304D CR
Dear Valued Partners,
Thank you for entrusting SPARKLING MACHINERY with your construction equipment component needs—your confidence fuels our dedication to engineering excellence and reliability. Today, we are proud to present the HIGH-QUALITY 280-3749 GEAR INJECTION PUMP, a product crafted with meticulous attention to detail to complement Caterpillar’s renowned excavators.
Whether you’re replacing a worn fuel injection pump or upgrading to reinforce engine performance, this component is designed to exceed your expectations with its robust functionality, seamless fit, and long-lasting durability—empowering your machinery to perform at its best in every work scenario.
The SPARKLING MACHINERY NEW 280-3749 GEAR INYECTION PUMP Photo:
Why Choose the SPARKLING HIGH-QUALITY 280-3749 GEAR INJECTION PUMP?
- Direct-fit compatibility: Precisely manufactured to match the exact dimensions, mounting points, and connection interfaces of Caterpillar target excavator models. No modifications, adapters, or additional adjustments are required, enabling hassle-free installation that aligns with original equipment standards.
- Precision control: Advanced gear machining and strict flow calibration ensure accurate fuel metering and consistent pressure delivery, optimizing combustion efficiency, reducing fuel waste, and enhancing engine responsiveness. This precision translates to smoother operation and reliable power output for demanding construction tasks.
- Rigorous quality: Undergoes comprehensive quality testing, including fuel flow accuracy verification, pressure resistance trials, leakage detection, and durability cycling. Every unit meets Caterpillar OEM standards to ensure reliable operation in extreme construction environments—from high-temperature operating conditions to dusty job sites.
- Professional support: Our team of Caterpillar-specialized technical experts provides end-to-end support—from pre-purchase compatibility consultation to post-installation guidance on pump priming, fuel system maintenance, and troubleshooting—ensuring a seamless experience for every customer.
- Cost-effective reliability: Offers exceptional durability and performance at a competitive price point. By minimizing downtime caused by fuel system failures, reducing fuel consumption, and extending engine service life, this gear injection pump maximizes the return on your investment in Caterpillar excavator equipment.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879