0445010171 Bosch CP1H Fuel Pump VAG 2.7/3.0 TDI Replacement

Product Description

0445010171 is one of the clearest application-specific pumps in this group. Our supplied product description points to VAG Audi A4/A5 2.7 TDI and 3.0 TDI applications, while independent parts-market data lists additional Audi and VW applications and cross-reference 059130755S.
We therefore use this page to help European diesel-parts buyers identify the pump by number and engine family. We do not treat “Audi 3.0 TDI” as a sufficient fitment statement; the complete pump number, engine code and OE reference remain important.

Product Snapshot

Application & Compatibility

We use the following application scope as the working reference for this SKU: Audi A4/A5 2.7/3.0 TDI and broader VAG applications supported by parts-market references. This does not mean every vehicle within a broad model family is automatically compatible. Before we confirm an order, we compare the complete pump number with the engine/application details supplied by the buyer.

VAG application and cross-reference

Independent parts data associates 0445010171 with Audi A4 2.7/3.0 TDI, A5 3.0 TDI, A6 2.7/3.0 TDI, A8 3.0 TDI, Q7 3.0 TDI and VW Touareg 3.0 TDI, and lists VW/Audi 059130755S as a comparison number. We use this as supporting identification information, not as a substitute for checking the buyer's actual vehicle.

CP1H system role

The pump supplies high-pressure fuel to the common rail. Bosch describes the rail as the hydraulic component linking the pump and injectors, with pressure monitored and controlled within the system. This is why stable pump output matters for starting, acceleration and fault-code diagnosis.

How we check the order

We compare the 0445010171 number, engine/application details and any available OE reference. If the buyer sends a photo of the existing pump, we can check the visible identification before confirming the supply.

Installation and diagnosis

A low-rail-pressure symptom does not automatically prove pump failure. Check the fuel filter, low-pressure feed, air ingress, metering control, rail and injector condition as appropriate. After replacement, prime the system and confirm stable pressure and leak-free connections.

Supply options for VAG distributors

We can supply new or remanufactured units subject to stock, with neutral export packaging and technical matching assistance. We recommend keeping 0445010171 and its cross-reference information together in the distributor's SKU record.

What We Check Before Shipment

• Exact part-number and label identification against the purchase order.
• Product condition: new or remanufactured, as quoted.
• Visual condition and obvious sealing/interface issues.
• Hydraulic inspection or bench testing where included in the supplied product/QC process.
• Packaging and labeling suitable for international B2B shipment.

For products sold as new or remanufactured, we follow our internal identification, visual inspection, sealing and hydraulic testing workflow. Where a bench-test record is required, we can provide the applicable inspection information for the supplied unit. We do not use a test claim as a substitute for checking the exact pump number and application.

Ordering Information

For a quotation, please send the exact pump number, quantity, engine code, vehicle/application, OE or cross-reference number if available, required condition (new or remanufactured), destination country and a clear photo of the existing pump label when possible. This information helps us reduce wrong-part shipments.

FAQ

Q: What OE number is associated with 0445010171 in supporting data?
A: 059130755S is listed as a comparison number by an independent parts supplier. Confirm the exact application before ordering.
Q: Which vehicles are referenced?
A: Audi A4/A5/A6/A8/Q7 and VW Touareg applications are listed in supporting parts data, with engine-specific restrictions.
Q: Is every 3.0 TDI compatible?
A: No. Confirm engine code, pump number and OE/cross-reference information.
Q: Do you offer remanufactured units?
A: Yes, subject to stock and the agreed condition.

Our Company & Technical Responsibility

We are Guangzhou Zhuohang Auto Parts Co., Ltd., a professional supplier of diesel common-rail fuel-system components. We work with overseas repair shops, vehicle maintenance businesses, machinery service companies and distributors. Our role is not only to supply a part number; we help buyers verify the pump identity, application, condition and replacement requirements before shipment.
Our technical-sales responsibility is to help buyers identify the correct product, explain the relevant common-rail system considerations and communicate the condition and inspection scope of the unit supplied. We do not describe an aftermarket or remanufactured part as a genuine Bosch product unless genuine status has been verified.

Warranty & After-Sales

We provide a 12-month warranty for applicable products under our stated warranty terms. For a warranty claim, we normally need the order reference, part number, installation information, fault description and supporting diagnostic evidence. Our team can help distinguish a pump-related issue from problems elsewhere in the fuel system.

Technical Review

Reviewed by: Product Application & Quality-Control Team
Review scope: part-number identification, application wording, technical description and purchasing guidance
Review date: September 2026

Important Brand & Compatibility Disclaimer

Bosch is a trademark of Robert Bosch GmbH. Unless expressly stated and verified, we do not represent the supplied unit as a genuine Bosch product. Vehicle, engine and OE names are used only to describe compatibility or reference applications. Final fitment must be confirmed using the complete pump number, engine code and relevant OE/reference data.

Publication Check

This version is structured for a manufacturer-owned B2B product page: product-specific introduction, application guidance, technical explanation, ordering instructions, FAQ, quality-control process, responsibility and review information. Vehicle and cross-reference details in this document are supported by independent parts-market sources and the supplied product material; final fitment must be verified for the actual vehicle.