Product Overview

This high-performance fuel injector is a direct replacement for Perkins 4012-TAG2 and 4012-TWG2 diesel engines. Designed for heavy-duty industrial and marine applications, this common rail injector nozzle (part number 858/34, OE T402742) ensures precise fuel delivery for optimal combustion efficiency. Sourced from a leading Shandong manufacturer, we supply global markets including North America, Europe, the Middle East, and Southeast Asia with fast shipping and competitive wholesale pricing.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade stainless steel for exceptional durability and corrosion resistance in demanding environments.
• Common Rail Technology: Designed for high-pressure common rail systems, providing accurate fuel metering and atomization for reduced emissions and improved fuel economy.
• 100% Professional Testing: Every unit undergoes strict flow rate, pressure, and spray pattern testing to guarantee OEM-spec performance.
• Direct Fitment: No modifications required; a true plug-and-play replacement for the original Perkins part.
• Reliable Warranty: Backed by a 6-month warranty against manufacturing defects, ensuring peace of mind for your fleet maintenance.

Technical Specifications

Specification	Details
Part Number	T402742 / 858/34
OEM Number	T402742
Engine Models	Perkins 4012-TAG2, Perkins 4012-TWG2
Fuel Type	Diesel
Material	Stainless Steel
Condition	New
Purpose	Replacement / Repair
Warranty	6 Months
Packing	Neutral Package (Individual Box)
Single Package Size	30 x 35 x 35 cm
Single Gross Weight	3.0 kg
Delivery Time	3–7 Days
MOQ	1 Piece

OEM Cross-Reference

• Perkins OEM: T402742
• Nozzle Number: 858/34
• Also Known As: Common Rail Injector Nozzle for Perkins 4012 Series

This injector is an exact cross-reference to the original Perkins T402742 part. No alternative numbers are required for fitment.

Compatibility

• Engine Models: Perkins 4012-TAG2, Perkins 4012-TWG2
• Vehicle Applications: Industrial generator sets, marine propulsion engines, heavy-duty off-highway equipment, and agricultural machinery utilizing these Perkins engine platforms.
• Year Range: Compatible with all production years of the 4012-TAG2 and 4012-TWG2 engines.

Global Supply & Distribution

• Worldwide Shipping: We ship to over 50 countries via DHL, FedEx, UPS, and sea freight (FOB/CIF).
• Major Markets: North America (USA, Canada), Europe (UK, Germany, Netherlands), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Indonesia), and Africa.
• Fast Delivery: Orders processed within 24 hours; delivery to major ports and industrial centers in 3–7 days for express shipments.
• Trade Compliance: Experienced in international export documentation and customs clearance support.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001-compliant facilities with strict quality control.
• Testing: Each injector nozzle is 100% professionally tested for flow rate, opening pressure, and spray pattern before packaging.
• Warranty: 6-month warranty against defects in materials and workmanship. We offer technical support for installation and troubleshooting.
• Packaging: Securely packed in neutral individual boxes to prevent damage during transit.

FAQ

Q: Will this injector fit my Perkins 4012-TWG2 engine without modification?
A: Yes, this injector (part number T402742 / 858/34) is a direct OEM replacement designed specifically for Perkins 4012-TAG2 and 4012-TWG2 engines. It matches the original dimensions, mounting points, and electrical/mechanical connections, requiring no modifications for installation.

Q: What is the recommended installation procedure for this common rail injector?
A: We recommend replacing the injector copper washer and high-pressure fuel line seals during installation. Ensure the injector bore is clean and dry. Torque the injector clamp to the manufacturer’s specification (typically 25–30 Nm). After installation, run the engine to check for fuel leaks and verify rail pressure stability.

Q: How can I verify that this injector meets OEM performance standards?
A: Each injector is 100% tested on a calibrated common rail test bench before shipment. We verify opening pressure (typically 250–300 bar), flow rate at rated pressure, and spray pattern quality. Our test results are available upon request to confirm compliance with Perkins OEM specifications.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .