Description

Bosch CP1S, CP1K, CP2, CP3-TECTOR, CP3 Parts Catalog

If you are rebuilding a Bosch common-rail pump and you do not have the factory screw catalog, you are guessing. Guessing on a CP3 at 30,000 psi gets you a hydraulic leak, a thrown rod, or a pump that trashes the injection system. I have seen it. This Bosch CP1S, CP1K, CP2, CP3-TECTOR, CP3 Parts Catalog is the only document that gives you the exact part numbers for every torx screw, flange bolt, and sealing component used on these pumps. It is 147 pages of Bosch-issued data, not some third-party reprint that got the digits wrong.

CP1S and CP1K Pump Identification and Screw Types

Page 13-2 lays out the identification for the CP1S and CP1K pumps. You get the screw designations: cover torx screw (A 31.600), sensors torx screw (B 31.600/5), flange torx screw (C 31.600/10), and the 3° element torx screw (M 31.600/12). Each part has a Bosch reference. If you need to replace a pump gear exagonal screw, the catalog gives you P 31.600/85. Match your pump application from the table – Mercedes, Citroen, Peugeot, Ford, Mazda, Kia – and pull the right fastener. No guessing which screw goes where.

What About CP2 and CP3-TECTOR Pumps?

The same page covers CP2 and CP3 identification. For the CP2 pump you get flange torx screws N 31.600/75 and drv torx screws L 31.600/65. For the CP3 it shows flange torx screws C and D. The CP3-TECTOR pump gets its own section with the PA (pressure adjustment) cover screw set. Each pump type has a specific FP number – for example, CP1K uses FP 0.440.020.088. You cross-reference that number against your pump body stamp. If the numbers don’t match, you are looking at the wrong page. Bosch made that clear.

Repair Kits and Special Tools: What’s Listed on Page 13-4

Page 13-4 covers high-pressure pump parts beyond screws. You will find special hand riveting tools (ref 30.460) for closing a common-rail pump, and blind rivets (ref 30.450) for CP3 assembly – sold in 50-piece bags. The repair kits are listed per pump: 60.146 for PA CP3, 60.146/4 for PA CP3 Tector, and 60.146/5 for the Iveco Eurocargo Tector variant. O-rings are called out with Viton material spec (30.814, 30.692). If you are rebuilding a high-pressure pump, you pull these part numbers and order the Bosch bits. Aftermarket seal kits are not the same.

Trust Factory Bosch Data, Not Aftermarket Reprints

I have had to redo jobs because someone used a parts catalog from a third-party aggregator that swapped a 31.600/5 sensor screw for a 31.600/10 flange screw. The thread pitch looks the same but the shoulder length is off. That mismatch will cost you a new pump housing. This catalog comes from the Bosch factory scan, straight into the AutoRepairManuals collection. The entire common-rail system Bosch screw database is here, including the simulator pages and the Ugo sections. Do not waste time on aftermarket reprints that omit the identification tables.

147 Pages of Verified Part Numbers

The document spans 147 pages, covering not only the Bosch pumps but also sections for Delphi, Denso, and Siemens common-rail systems. This is a cross-manufacturer reference that happens to have the deepest Bosch coverage. You get all 13-xx sheets from 13-0 through 13-65, plus instrument and tester categories. The screw listings for CP1S, CP1K, CP2, CP3-TECTOR, and CP3 are laid out in exploded-view style. If you need the part number for a pump gear exagonal screw on a CP2, it is on the sheet marked 13-2. No flipping through generic catalogs.

The common-rail system is the heart of modern diesel injection. Understanding how the screws, seals, and tools interact is essential for any diesel shop. For a broader look at how these systems fit into the Automotive Industry Overview, this catalog gives you the fastener-level detail that most overviews skip. If you want to study the thermodynamics behind the fuel injection, the Internal Combustion Engine resources are useful, but for bench work you need the part numbers.

Short version: if you touch Bosch CP1S, CP1K, CP2, CP3-TECTOR, or CP3 pumps, this catalog stays on your bench. Period.

FAQ

Does this catalog include torque specifications for the screws?

No. This is a parts catalog, not a service manual. It lists screw types and part numbers.

How do I identify the correct screw for my CP1S pump using this catalog?

Start on page 13-2 under the CP1S+CP1K heading. Locate your pump’s application (e.g., Mercedes, Citroen) from the table. The catalog shows a diagram with callout letters (A, B, C, D, etc.) and the corresponding screw part numbers. For example, cover torx screw A 31.600 appears on the CP1S. Verify your pump’s FP number against the list – if it says FP 0.440.020.088 for CP1K, your screws are the A and B types shown. Match the screw head style (torx, exagonal) and the dimension code. If you still cannot identify the screw, look at the PA (pressure adjustment) section on page 13-3 for that pump family. The catalog is organized by pump model, not by vehicle, so you need to know your pump model first. Once you have the part number, order from Bosch or a dealer. Do not substitute based on thread pitch alone.

Do not let a missing screw or wrong part number shut down your job. Get the data that Bosch built for their own service network. Access the Factory Manual now.