Parts for Caterpillar 3512B - Fuel Section

Parts for Caterpillar 3512B – Fuel Section

The fuel system of the Caterpillar 3512B engine plays a critical role in maintaining steady fuel delivery, efficient combustion, and reliable engine start-up performance. Within this system, the fuel priming pump is one of the most essential components. It ensures that fuel is properly delivered to the injectors during start-up and after filter replacement or maintenance work, preventing air locks and maintaining consistent fuel pressure. Diesel Pro Power supplies high-quality Caterpillar fuel priming pumps designed to meet or exceed OEM standards for the 3512B, ensuring dependable operation in demanding environments such as marine propulsion, oilfield equipment, and heavy industrial applications.

Caterpillar Fuel Priming Pump – 188.4cc Stroke per Lifter

This Caterpillar fuel priming pump is designed for high-volume fuel delivery systems and features a 188.4cc stroke per lifter capacity. The larger displacement allows for rapid and efficient priming of the fuel lines, particularly beneficial in large 12-cylinder diesel engines like the 3512B. Whether you’re starting the engine after extended downtime or performing routine maintenance on fuel filters, this priming pump quickly removes air from the fuel lines and prepares the system for smooth ignition. Built from precision-machined materials and tested to withstand harsh environments, this pump ensures leak-free operation and long service life under constant vibration and heat exposure.

Caterpillar Fuel Priming Pump – 76.6cc Stroke per Lifter

The second option in Diesel Pro Power’s catalog features a 76.6cc stroke per lifter, offering a more compact yet equally efficient solution for the 3512B’s fuel delivery system. This version is often preferred for installations where space constraints or specific flow rate requirements dictate a smaller priming volume. It performs exceptionally well in backup generator systems, auxiliary power units, and marine engines that require reliable, quick priming without excessive fuel displacement. Despite its smaller size, it’s engineered with the same rugged durability and corrosion resistance as the larger model, ensuring optimal performance in both fresh and saltwater environments.

Both pumps play an essential role in preventing dry starts and protecting high-pressure fuel injection components from damage due to trapped air. By ensuring the entire fuel circuit is fully pressurized before the engine turns over, these pumps help improve cold-start reliability, extend injector life, and maintain consistent power output across a wide range of operating conditions.

Why Buy Caterpillar 3512B Fuel Priming Pumps from Diesel Pro Power

Diesel Pro Power has been the trusted source for Caterpillar replacement parts for decades, proudly serving over 40,000 satisfied customers worldwide. When you purchase a fuel priming pump from Diesel Pro Power, you’re not just getting a replacement component—you’re investing in reliability, performance, and expert support.

All Caterpillar fuel priming pumps offered by Diesel Pro Power are tested for proper stroke volume, seal integrity, and durability, ensuring every unit meets strict OEM performance standards. Orders ship fast—often the same day—and are backed by detailed tracking and dedicated customer service. Diesel Pro Power’s catalog is designed for clarity, allowing you to find the exact pump for your Caterpillar 3512B engine without the confusion often found in generic parts listings.

In addition to competitive pricing and comprehensive warranties, Diesel Pro Power offers 24/7 online ordering, global shipping, and technical support from experienced diesel specialists. Whether maintaining a fleet of offshore vessels, land-based generators, or industrial engines, customers rely on Diesel Pro Power to keep their Caterpillar equipment running at peak performance.

With precise engineering, rapid delivery, and decades of experience behind every order, Diesel Pro Power remains the go-to destination for Caterpillar 3512B fuel priming pumps and other genuine-quality replacement parts worldwide.