9521A310T Delphi DP310 Fuel Injection Pump – 4154313 Cross Reference, 6-Cylinder Perkins Application, Bench Tested

Product Overview

I normally tell first-time buyers not to identify a diesel injection pump by the machine model alone. The safest starting point is the number on the pump itself, followed by the engine model and, when available, the engine serial number.

For 9521A310T, our supplied product information identifies this as a Delphi fuel injection pump for Perkins diesel engines. Independent Delphi/Perkins cross-reference catalogs also list 9521A310T as a DP310 fuel injection pump and associate it with Perkins number T413724; another current B2B supplier lists 4154313 and T413724 as the OE numbers and describes the application as a Perkins 6-cylinder engine. These cross references give buyers useful identification points, but I still recommend confirming the original pump marking before placing an order.

In our factory workflow, we focus on fuel-delivery accuracy, calibration and sealing. The purpose is straightforward: the pump must supply fuel consistently enough for the engine and injection system to operate correctly. A replacement pump that is the wrong part number or has not been correctly tested can create more troubleshooting work rather than solving the original problem.

3 Key Selling Points

• DP310 fuel injection pump: 9521A310T is identified in Delphi/Perkins cross-reference data as a DP310 pump.
• 4154313 + T413724 cross references: two useful identification numbers for B2B buyers checking an existing pump.
• 6-cylinder Perkins application + factory testing: current B2B listings associate the pump with Perkins 6-cylinder engines, while our stated QC process includes bench testing and sealing checks.

Technical Specifications

What Does the Injection Pump Actually Do?

If you are new to diesel fuel systems, think of the injection pump as the component that controls and supplies fuel to the injection system. The engine cannot simply receive an uncontrolled flow of diesel; fuel delivery has to be matched to the engine's operating requirements.

That is why pump condition matters. If fuel delivery is not correct, the engine may become difficult to start, run unevenly at idle, lose power under load, consume more fuel or produce abnormal black smoke. These symptoms do not automatically prove that the injection pump is faulty, however. Filters, fuel lines, injectors, air ingress and other fuel-system components can produce similar symptoms.

How I Match 9521A310T for a Customer

I use a simple three-step check:

1. Pump number — Please send the complete number shown on the old pump, including any suffix.
2. Engine information — Tell me the Perkins engine model and, if possible, the engine serial number.
3. Photo confirmation — A clear photo of the pump nameplate and mounting/fuel-connection area helps us identify the physical configuration.

For 9521A310T, public Delphi/Perkins cross-reference material lists the part as a DP310 fuel injection pump and gives T413724 as the Perkins reference. A current B2B listing additionally gives 4154313. Because catalog descriptions can differ in how they label an application, I would not recommend ordering solely from a generic description such as 'Perkins pump'.

Why Bench Testing Matters

From an engineer's point of view, a fuel pump should not be judged only by appearance. Our supplied factory information states that products are 100% bench tested before delivery, and that fuel pumps undergo professional bench calibration and tightness testing.

This testing step is important for B2B customers because a component that looks correct may still require calibration or may have a sealing problem. Our aim is to verify the product before shipment so the distributor or repair shop has a more reliable starting point when installing the replacement.

Common Applications and Buyer Profile

9521A310T is most relevant to buyers sourcing replacement fuel pumps for compatible Perkins diesel engines. Current cross-reference and B2B sources associate it with Perkins applications and identify the pump as DP310; one current listing specifically describes a Perkins 6-cylinder application.

We supply this type of component mainly for maintenance dealers, diesel repair businesses, equipment-parts distributors and trading companies. If you purchase multiple diesel fuel-system part numbers, we can also discuss mixed orders, customized packaging and wholesale quantities.

Quality Options, Warranty and Delivery

Our supplied company information states that we offer New Original, OEM Packed and Remanufactured injector options, with a 12-month global warranty for injectors. Please note that these statements are written for the broader injector product range and should not automatically be treated as the warranty specification for this particular pump. For the 9521A310T, I recommend confirming the exact condition, warranty and packing standard on the quotation before payment.

For in-stock products, our supplied information states a 3–7 working-day dispatch window worldwide. Actual lead time depends on stock status, quantity and order requirements.

FAQ

What is the main Delphi number?

9521A310T.

What are the main cross-reference numbers?

Current Delphi/Perkins cross-reference material lists T413724, while a current B2B supplier also lists 4154313. Please confirm the number on your original pump before ordering.

Is 9521A310T a DP310 pump?

Yes. Independent Delphi/Perkins cross-reference sources identify 9521A310T as a DP310 fuel injection pump. citeturn0search20turn0search21

Is it for a Perkins 6-cylinder engine?

A current B2B listing describes 9521A310T / 4154313 / T413724 as a Perkins 6-cylinder fuel injection pump. We recommend matching the exact engine information before purchase. citeturn0search6

Do you test the pump before shipment?

Our supplied factory information states that products are 100% bench tested and that fuel pumps receive bench calibration and tightness testing before shipment.

Can I order mixed part numbers?

Our supplied information states that mixed MOQ is accepted for diesel injectors. For mixed pump orders, please confirm the requested part numbers and quantities with our sales team.

B2B Ordering Checklist

• 9521A310T number confirmed
• Original pump number / nameplate photo available
• Perkins engine model confirmed
• Engine serial number available where possible
• Quantity and packaging requirement confirmed
• Product condition and warranty confirmed on quotation
• Delivery time confirmed against actual stock

Manufacturer Information

We are a professional manufacturer and wholesale supplier specializing in diesel fuel-system spare parts. Our product range includes fuel injection pumps, unit injectors, common rail injectors and related accessories for Delphi, Cummins, Volvo, John Deere, Yanmar, Komatsu and Isuzu systems. Our products are used across construction machinery, agricultural machinery, trucks and generator units. We focus on stable product quality, factory-direct supply and practical after-sales support for international maintenance dealers and trading partners.