Product Overview

This is a premium replacement piston, part number 5274516, engineered for Cummins ISF4.5 and QSB7 series diesel engines. Manufactured to strict OEM specifications, it is a critical component for engine rebuilds and repairs. We specialize in global B2B supply, serving major industrial markets worldwide with reliable shipping and expert technical support for commercial vehicle and machinery fleets.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal compression.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-pressure and thermal stresses of diesel operation.
• Optimized Performance: Designed to restore engine power, efficiency, and longevity, minimizing downtime.
• Rigorous Quality Control: Each piston undergoes thorough inspection and testing to ensure reliability.
• Direct Replacement: A direct-fit component that eliminates compatibility concerns during engine overhaul.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM part number:

• Cummins: 5274516

Please consult with our technical team to confirm compatibility with any alternative part numbers for your specific engine serial number.

Compatibility

This piston is designed for use in Cummins ISF4.5 and QSB7 series diesel engines. These engines are commonly found in a wide range of heavy-duty applications, including:

• Forklifts
• Excavators
• Trucks
• Loaders
• Bulldozers
• Buses
• Other Industrial Machinery

Global Supply & Distribution

We are a trusted partner for engine parts distributors and repair shops worldwide. Our streamlined logistics ensure efficient delivery to key industrial regions:

• Major Markets Served: North America, European Union, Asia-Pacific, Middle East, Africa, and South America.
• Fast Port Delivery: Consolidated shipping to major global ports including Los Angeles, Rotterdam, Singapore, Dubai, and Sydney.
• Export Expertise: Fully compliant with international trade regulations. Comprehensive documentation (Commercial Invoice, Packing List, Certificate of Origin) provided for all shipments.
• Bulk & Wholesale: Competitive pricing for container loads (FCL) and mixed container (LCL) orders to optimize your supply chain costs.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and metallurgy.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Testing & Inspection: Every batch is supported by machinery test reports. Video outgoing-inspection is available upon request to verify quality before shipment.
• Material Certification: Sourced from certified suppliers to ensure consistent material properties and performance.

FAQ

Q: How do I confirm this piston is the correct part for my specific Cummins engine?
A: Always verify your engine’s full model designation and serial number. While compatible with ISF4.5 and QSB7 series, slight variations may exist. Cross-reference our part number 5274516 with your engine’s service manual or contact our support team with your engine S/N for confirmation.

Q: What is included with the piston, and is installation guidance provided?
A> This is a single piston sold as an individual component. Piston rings, pins, and clips are typically sold separately for a complete piston assembly kit. We recommend installation by a qualified technician following the official Cummins engine overhaul manual. Basic technical data sheets are provided with the product.

Q: What are the lead times for shipping to [Europe/North America/My Region]?
A> Standard sea freight to major ports typically takes 25-35 days. We offer expedited air freight options for urgent requirements, with delivery in 5-10 business days. Please contact our sales team for a precise shipping quote based on your order quantity and destination.

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 .