The c-aterpillar 3412A series fuel injector, part number 7C-9578 (also referred to as 7C9578), is a premium new diesel fuel injector specifically developed for c-aterpillar 3412A series diesel engines, boasting excellent compatibility with 3500 series engines (including 3508, 3512, 3516) and a wide range of c-aterpillar heavy-duty equipment such as construction machinery, mining vehicles, generator sets, and marine vessels[1][3][9]. Crafted from high-quality alloy steel[2][7], this injector undergoes 100% strict factory testing before shipment to fully comply with OEM specific-ations and ISO 9001 quality standards[3][9], guaranteeing consistent performance and durability. Adopting advanced mechanical injection technology and precision-machined nozzle design, it achieves accurate control of fuel injection volume, timing, and atomization, thereby optimizing engine performance, promoting full diesel combustion, reducing fuel consumption, and delivering reliable power output. Its robust structure makes it highly adaptable to harsh working environments such as dusty mining sites, high-temperature construction areas, and humid marine conditions. Widely used in c-aterpillar 3412A-equipped excavators, 3500 series-powered generator sets, and marine vessels[3][5][9], it provides stable power support, perfect fitment, and effectively minimizes equipment downtime. As a cost-effective and trustworthy replacement part, it offers flexible order terms: MOQ starts from 1 piece (adjustable to 4 pieces based on customer requirements[1][3][9]), flexible warranty options (6 months to 12 months[1][3][7][9]), fast delivery within 3-8 working days (3-5 days for in-stock orders, 5-8 days for bulk orders[3][9]), and tiered pricing (1-9 pieces at US$395 each, 10-49 pieces at US$365 each, ≥50 pieces at US$340 each[1][3]). It also supports neutral, original, or customizable packaging (MOQ 300 pieces for customization[3]), fully meeting the maintenance and procurement needs of global customers in the construction, mining, and power generation industries. Multiple payment and shipping methods are available to facilitate seamless global procurement[3][9].

1. Core Technical Specific-ations

2. Compatible Machines & Applic-ation Scenarios

Why Choose Us:

1.We have brand packages (for the piston, injector etc.)

wooden box (for crankshaft, camshaft, cylinder parts etc.)

It depends on your requirement.

2.We have our own professional forwarding agent: Fast delivery, serve good.

3.Our feedback: You always can get our feedback within 24 hours.

4.After sending, we will track the products for you once every two days, until you get the products.

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