YANMAR 129928-51740 Fuel Injection Pump Head Rotor Engine 4TNV94 4TNV98

( Brand: Yanmar ), ( Type: Head Rotor ), ( Connector Color: Black ), ( Manufacturer Part Number: 129928-51740 ), ( Fuel Type: Diesel )

Review YANMAR Fuel Injection Pump Head Rotor Engine

Introducing the Yanmar 129928-51740 fuel injection pump head rotor, an essential component designed specifically for Yanmar 4TNV94 and 4TNV98 engines. This rotor, a key part of the fuel injection system, plays a crucial role in delivering fuel efficiently to the engine for optimal performance.

The Yanmar 129928-51740 fuel injection pump head rotor is meticulously engineered using high-quality materials that ensure durability and reliability. The rotor's design features a precise and intricate internal geometry, which allows it to accurately meter fuel and deliver it in the right quantity and at the right time to the engine's combustion chamber.

The surface finish of the rotor is carefully crafted to minimize friction and wear, ensuring a long service life. The rotor's robust design also makes it resilient to the harsh operating conditions typically encountered in marine and industrial applications.

Installation of the Yanmar 129928-51740 fuel injection pump head rotor is straightforward, making it an excellent choice for DIY enthusiasts or maintenance professionals. The rotor comes complete with all necessary hardware, making it a convenient and cost-effective solution for engine repairs or upgrades.

By choosing the Yanmar 129928-51740 fuel injection pump head rotor, you can trust that you are investing in a high-performance and long-lasting component that will help keep your Yanmar 4TNV94 or 4TNV98 engine running at its best. Whether you're powering a marine vessel, a generator, or any other industrial application, this rotor is an essential and reliable addition to your engine maintenance arsenal.

Buying a Yanmar 129928-51740 fuel injection pump head rotor for an engine like 4TNV94 or 4TNV98 involves considering several factors to help make an informed decision. Here are some pros and cons that may help:

1. OEM Part: This rotor is a genuine Yanmar part, ensuring compatibility and reliability with the engine.

2. Improved Performance: A worn-out or faulty fuel injection pump head rotor can lead to poor engine performance. Replacing it with a new one can restore fuel efficiency and power.

3. Preventing Damage: A failing fuel injection pump head rotor can cause further damage to the engine if not replaced in time.

4. Longer Engine Life: Regular maintenance, including replacing worn-out parts like the fuel injection pump head rotor, can help extend the life of the engine.

1. Cost: The Yanmar 129928-51740 fuel injection pump head rotor can be relatively expensive compared to aftermarket or used parts.

2. Availability: Depending on the supplier or distributor, this part may not always be readily available, leading to potential downtime for the engine.

3. Installation: Replacing the fuel injection pump head rotor requires specialized knowledge and tools, which may add to the overall cost and time of the repair.

Considering the pros and cons, buying a Yanmar 129928-51740 fuel injection pump head rotor for an engine like 4TNV94 or 4TNV98 is an investment in the long-term performance and reliability of the engine. While the upfront cost may be higher than aftermarket or used parts, the benefits of using a genuine Yanmar part include improved performance, extended engine life, and peace of mind.

If you're looking to replace the fuel injection pump head rotor on your Yanmar engine, it's recommended to purchase a genuine Yanmar part like the 129928-51740. While the upfront cost may be higher, the long-term benefits of using a high-quality, OEM part can help ensure the best possible performance and reliability for your engine.

part # 12992851740 prices

• $101.54-$450.00

specifications injectiopug:

• brand: Yanmar
• type: Head Rotor
• connector color: Black
• manufacturer part number: 129928-51740
• fuel type: Diesel

seller injectiopug:

• # reviews: 5461
• rating: 99.4%

returns injectiopug:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer injectiopug:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 2
• started: February 17, 2026

general injectiopug:

• Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts
• condition: New

shipping injectiopug:

• service: FedEx Ground Economy, UPS Ground Saver, UPS Ground, FedEx Ground / FedEx Home Delivery
• class: Economy, Standard
• cost: $0.00
• type: Fixed
• transit: 2-6 Days
• carrier: FedEx, UPS

payments injectiopug:

• wallet: Paypal
• credit card: Mastercard
• other

Yanmar 129928-51740 Is Similar To:

• Yanmar 129400-51100 Qty 1 Genuine Injection Pump Plunger Assembly Sealed (50.3% similar) $50.66–$90.00. (October 23rd, 2025)
• Yanmar 174307-51370 Cap Nut Fuel Pump Fits 2qm20 3qm30 Kbw-10a 3t72 Diesel (38.9% similar) $12.00–$35.69. (October 25th, 2025)
• Yanmar 121550-51100 Plunger Assy Fuel (32.1% similar) $90.00. (November 23rd, 2025)
• Yanmar 119173-53001 Valve Assy Injection (41.7% similar) $134.50. (January 13th, 2026)
• Yanmar 119415-59810 Thermo King 0.57l 2tnv70 Tk270m Injector Fuel Lines Oem (42.7% similar) $155.99–$161.99. (March 3rd, 2026)