Fuel Injectors,
Pumps & Spare Parts.

Fuel Injection
System Specialist.

Diesels, Superior, Lasting

Factory Direct Supply | Strict Testing|Global After-sales Support

10K+ Spare Parts

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Fuel Injector and Fuel Pump Manufacturer in China

Diselon has over 20 years of industry experience and specializes in fuel injectors, fuel pumps, repair kits, and spare parts for global B2B customers. With a 7,000+ m² manufacturing facility, ISO 9001 and IATF 16949-based quality management, and advanced testing equipment, we offer dependable diesel fuel injection solutions, professional technical support, and responsive service. Contact us today for product information, technical support, and a competitive quote.

Diselon Products

317-2300 320D Diesel Fuel Injector for C4.4/C6.4 Engine China Manufacturer

In stock

SKU: 317-2300
Weight0.4 kg
Dimensions18 × 13 × 4 cm
Gross Weight0.43kg
OE Code317-2300
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

4327147 XPI Diesel Fuel Injector Manufacturer for ISX/QSX15 Engine China Factory

In stock

SKU: 4327147
Weight1.09 kg
Dimensions27 × 10 × 6 cm
Gross Weight1.22kg
OE Code4327147
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

4903319 Fuel Injector For M11/ISM11/QSM11 Engine China Manufacturer

In stock

SKU: 4903319
Weight1.51 kg
Dimensions26 × 12 × 5 cm
Gross Weight1.57kg
OE Code4903319
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

319-0638 Fuel Pump For C7/C9 Diesel Engine China Factory Manufacturer

In stock

SKU: 319-0638
Weight11.72 kg
Dimensions33 × 33 × 27 cm
Gross Weight13.17kg
OE Code319-0638
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

375-2647 Common Rail Fuel Injection Pump Manufacturer For C9.3 Diesel Engine

In stock

SKU: 375-2647
Weight17.01 kg
Dimensions38 × 40 × 22 cm
Gross Weight18.09kg
OE Code375-2647
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

3417677 QSM/ISM11 Fuel Pump With Fliter For N14 M11 QSM11 ISM11 Engine Supplier

In stock

SKU: 3417677
Weight4.73 kg
Dimensions33 × 32.5 × 27 cm
Gross Weight6.18kg
OE Code3417677
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

332X1021 GE Electronic Control Unit Pump For Gevo V-12 Diesel Engine China Factory

In stock

SKU: 332X1021
Weight7.14 kg
Dimensions39 × 21 × 19 cm
Gross Weight7.49kg
OE Code332X1021
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,TS16949

7609001 Common Rail Pump DRV Valve For 12818980 Fuel Pump Spare Part

In stock

SKU: 7609001
Weight0.436 kg
Dimensions10.5 × 9.3 × 7.2 cm
Gross Weight0.4756kg
OE Code7609001
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001,IATF16949

7609002 Common Rail Fuel Pump Metering Unit For 12818980 Fuel Pump Spare Part

In stock

SKU: 7609002
Weight0.2384 kg
Dimensions10.7 × 7 × 7.5 cm
Gross Weight0.2648
OE Code7609002
TrademarkDiselon
FuelDiesel
OriginChina
Warranty6 Months
CertificatesISO9001, IATF16949

DISELON

Precision Fuel Systems. Reliable Power. Smarter Sourcing.

We design, manufacture, and supply diesel fuel injectors, pumps, and precision parts worldwide. ISO 9001 and IATF 16949 certified, with 20+ years of expertise, we help distributors and aftermarket businesses source smarter, control costs, and build dependable supply chains.

Industry Manufacturing Experience
0 + Years
Strict QC & Performance Inspection
0 % Tested

ISO 9001 / IATF 16949

Quality Management Certification

Global OEM & Aftermarket Distribution
0 + Countries

Diesel Fuel Injection Solutions

DSL provides fuel injectors, fuel pumps, repair kits, and spare parts to meet a wide range of aftermarket needs, from heavy-duty engines to legacy passenger vehicles and demanding operating environments. With over 20 years of industry experience, a 7,000+ m² manufacturing facility, and advanced testing equipment, we provide B2B buyers with product matching, quality inspection, and technical assistance to make informed sourcing decisions.

Challenge: Heavy-duty trucks, mining equipment, and logistics fleets require dependable fuel injection components under demanding operating conditions. High OEM replacement costs and inconsistent aftermarket quality can complicate maintenance planning.

DSL Solution: We help buyers verify OE reference numbers and engine applications before selecting suitable common rail injectors, fuel pumps, and related spare parts. Product-specific testing and pre-shipment inspection help verify conformity with applicable requirements.

More informed sourcing decisions, clearer compatibility checks, and improved visibility into product quality before shipment.

Challenge: Automotive parts importers and distributors must maintain reliable coverage for older diesel vehicles, where incorrect part selection and inconsistent specifications can lead to returns, installation issues, and inventory challenges.

DSL Solution: We help customers identify products by providing OE reference numbers, engine codes, vehicle information, and relevant technical specifications. Customers can evaluate product suitability and batch consistency by comparing injector performance, when applicable, to the corresponding test requirements. 

Better-informed purchasing, less uncertainty in part matching, and a more structured aftermarket sourcing process.

Challenge: In markets exposed to wide temperature variations, variable fuel cleanliness, or limited maintenance access, diesel fuel systems may face increased operating and servicing challenges.

DSL Solution: We assess application details, ambient temperature ranges, fuel specifications, and equipment requirements to help buyers identify suitable injectors, fuel pumps, repair kits, and spare parts. Relevant material specifications, operating limits, and available test documentation can be reviewed before order confirmation.

More application-focused sourcing decisions and clearer expectations for product suitability, maintenance, and operating conditions.

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What Global Automotive Partners Say About Diselon

FAQs

Distributor Support Policy?

We Extend An Invitation To Distributors Worldwide, Offering Vlp Pricing, Strategic Promotional Assistance For Local Markets, And A Wealth Of Resources, Including Professional Product Brochures, Engaging Product Promotion Videos And Images, Support For Local Exhibitions, And More.

What Is Our Technical Support And After Sales Service Policy?

Customer Satisfaction Takes Precedence In Everything We Do. DSL's Allproducts Are Tested Before Shipping. And Backed By Over 20 Years Of Extensive Experience In Fuel Injector And Pump Manufacturing, We Can Offer You Comprehensive Online And Offline Training Resources, Along With Detailed Instructional Video Training, Etc.

Do We Offer Customization Options?

Yes, We Support Customization Options For Some Products To Meet The Specificneeds Of Our Customers. Please Provide Details Of Your Requirements For Further Discussion.

What's The Shipping Way?

Ups, DHL, FedEx, TNT, Ems Or Other Shipping Ways According To Customers' requirements.

Can I Get Samples?

Yes, It's Our Pleasure To Provide You The Samples.