Product Overview

This premium Fuel Pump Rack Actuator is a direct-fit replacement component engineered for Yanmar 4TNV98 and 4TNV94 series diesel engines, which power a wide range of compact excavators, skid steer loaders, and industrial equipment. Interchangeable with OEM references 29927-61601, 729974-51370, 12992761601, and 72997451370, this actuator restores precise fuel metering control to your injection pump.

We supply this part to equipment owners, repair workshops, and parts distributors across North America, Europe, the Middle East, Southeast Asia, and Australia. Every unit is inspected and packed for export, with reliable worldwide shipping from our warehouse to major ports and industrial hubs.

Key Features & Benefits

• Precise Fuel Control: Restores accurate rack positioning for stable idle, smooth acceleration, and correct fuel delivery under load.
• OEM-Matched Fitment: Built to original dimensions and connector specifications for drop-in replacement without modification.
• Durable Construction: High-grade internal components and sealed housing resist vibration, heat, and diesel fuel exposure.
• Cost-Effective Alternative: Delivers OEM-level performance at a fraction of dealer pricing.
• Quality Tested: Each actuator is functionally checked before packing to confirm coil resistance and travel response.

Technical Specifications

OEM Cross-Reference

This actuator is compatible with the following OEM and alternative part numbers:

• 29927-61601 (primary reference)
• 729974-51370
• 12992761601
• 72997451370

Please confirm your existing part number against this list before ordering. If you are unsure, send us your engine serial number and a photo of the old actuator, and our team will verify fitment.

Compatibility

Designed for the following Yanmar diesel engine platforms:

• Yanmar 4TNV98 — commonly used in compact excavators, wheel loaders, and generator sets
• Yanmar 4TNV94 — commonly used in mini excavators, skid steer loaders, and agricultural machinery

Typical equipment applications include Yanmar-powered excavators, Bobcat and Takeuchi loaders, and various industrial power units. Always verify the engine model plate before installation.

Global Supply & Distribution

• Worldwide Shipping: Air, express (DHL/FedEx/UPS), and sea freight options available.
• Major Markets: North America, Europe, Middle East, Southeast Asia, Australia, and South America.
• Fast Dispatch: Stock items shipped within 1–3 business days; bulk orders arranged on schedule.
• Export Experience: Full commercial documentation, HS code classification, and international trade compliance support.
• Flexible Ordering: Sample orders, mixed containers, and distributor bulk pricing available.

Quality Assurance

• Manufacturing Standards: Produced under ISO 9001-aligned quality management processes.
• Testing: 100% functional inspection of coil resistance, stroke travel, and connector integrity.
• Warranty: 6-month replacement warranty against manufacturing defects.
• Packaging: Anti-static bag, foam protection, and reinforced carton to prevent transit damage.

FAQ

Q1: How do I confirm this actuator fits my engine?
Check the part number stamped on your old actuator or fuel pump. It should match one of the references listed above (29927-61601, 729974-51370, 12992761601, or 72997451370). You can also send us your engine model and serial number for verification.

Q2: Is installation difficult?
Installation is straightforward for a qualified diesel technician. Disconnect the battery, remove the actuator from the injection pump, transfer any mounting hardware, and install the new unit with a new gasket or O-ring if required. Always follow the engine manufacturer’s service procedure and torque specifications.

Q3: What maintenance or symptoms indicate the actuator needs replacement?
Common signs include rough idle, surging, loss of power, hard starting, or fault codes related to fuel rack position. If the actuator shows physical damage, fuel leakage, or fails a resistance test, replacement is recommended. Keeping the fuel system clean and using quality diesel filters helps extend actuator service life.