Description

Bendix E-2, E-3, E-5, E-7, E-8P Parts Catalog – What the Factory Ships

Any shop that touches truck brakes has run into the same problem: aftermarket parts lists that leave out the V.M.R.S. revision number or swap a delivery port thread. That costs you a come-back. I have been turning wrenches in San Antonio since before some of you were born, and I have learned the hard way that OEM parts catalogs are the only thing you can trust when ordering valve internals. This Bendix E-2, E-3, E-5, E-7, E-8P Parts Catalog is the factory-issued reference that tells you exactly which maintenance kit goes on which basic valve and what thread size each port actually takes. No guesswork, no simplified drawings that skip the bottom view.

The first thing I look for in any parts catalog is whether it gives the pipe thread sizes for every port. On page 1 of this 26-page catalog you get the full layout for the E-5 brake valve: 3/8″ P.T. delivery, 1/4″ P.T. supply, 1/2″ P.T. supply, and the 2-1/2″ exhaust opening. Same page covers the E-2 and E-3 valves with their delivery thread options — 3/8″ or 1/2″ — and notes the auxiliary ports. These are the details that keep you from ordering the wrong minor repair kit (Pc. No. 281084 for E-5, 276119 for E-2 and E-3).

E-2, E-3, E-5, E-7, E-8P Parts Breakdown – What the Factory Issued

When I say “parts breakdown” I mean the actual exploded views and part number callouts that Bendix used at the assembly line. The catalog covers the E-2 (basic valve p/n 229500 or 229501 depending on pipe thread), E-3 (p/n 277863 or 278998), E-5 (p/n 279950), E-7 dual brake valve, and E-8P/E-10P/E-10PR new-service replacements. Flip to page 2 and you will see the E-8P basic valve p/n 800629 replacing 065313 and 800583, with a note that the lower body is rotated 90 degrees. That is the kind of interchange detail you will never find in a general truck parts book. If you are ordering a replacement E-8P, you need to know whether your old valve had the exhaust port threaded (1/2 NPT) or not — page 2 shows p/n 800631 with that option.

What the V.M.R.S. Numbers Mean (and Why You Need to Check Them)

Every basic valve in this catalog carries a V.M.R.S. number: 13-010-019 for the single-circuit valves (E-2, E-3, E-5) and 13-010-051 for the dual valves (E-7, E-12, E-14, E-15). V.M.R.S. stands for Vehicle Maintenance Reporting Standards — it is the Bendix engineering revision level. If the valve on your truck has a different V.M.R.S. than what is listed, the internal parts may not be compatible. I have seen guys order a major repair kit for an E-7 (p/n 289353) only to find the spool bore is a different diameter because the V.M.R.S. had been superseded. This catalog flags that by printing the V.M.R.S. right next to the basic part number.

How to Identify the Correct Maintenance Kit – Minor vs. Major Repair

Each valve page shows two kit options: minor repair and major repair. For the E-5, minor kit is p/n 281084; major kit is p/n 289334. For the E-7, minor is 289352, major is 289353. The difference is that a minor kit replaces seals, O-rings, and the exhaust diaphragm, while a major kit adds the piston assembly and sometimes the spring. But here is the trick: the E-14 dual valve uses a different minor kit (p/n 108367) depending on where the Bendix logo is cast into the body — position A or B. Page 2 includes a diagram showing logo positions and the corresponding kit selection. That is the level of detail that keeps a job under an hour instead of chasing a parts counter.

Source Validity – Why This Is Not a Cropped Aftermarket Copy

This is a direct scan of the Bendix factory parts catalog. It is not a third-party compilation that combined three different valve families into one messy table. The 26 pages are exactly what Bendix printed, with the same part number columns, thread callouts, and footnotes like “Pedal and Mounting Plate Not Furnished. If Required Refer To Master Parts Catalog.” I do not trust aftermarket parts books that reorganize the data because they inevitably drop a critical note — like the E-7 port thread chart on page 3 that lists 12 port positions (A through M) with thread sizes, stud lengths, and whether the stud is threaded or not. That chart alone is worth the price of the access. Combine this with the Bendix TU-FLO 400, 500, 1000 Technical Manual – OEM Specs or the Bendix EC-60 Service Manual – Factory ABS/ATC Diagnostics for a complete shop reference. For ABS-equipped tractors, the Bendix Gen 4 and Gen 5 ABS Service Manual completes the air system picture.

If you have ever wasted an afternoon because a parts catalog used a generic thread designation like “1/4 NPT” but omitted the “P.T.” (pipe thread) detail that Bendix uses to differentiate from straight thread, you know exactly what I am talking about. This catalog includes the full Bendix notation: “1/4″ P.T. Delivery” with the port location drawn on the bottom view. The OEM documentation also includes the interchange notes for new-service valves replacing older numbers — for example, the E-8P replacement for the E-12. You are not guessing which valve to order.

FAQ – Quick Answers from the Workbench

Does this catalog cover the E-14 dual brake valve?

Yes. Page 2 covers the E-14 basic valves (p/n 065314, 065317, 065395) along with the minor kit p/n 108367 and the Bendix logo position diagram. The E-14 uses a different kit selection rule than the E-7.

Are torque specs included in the parts catalog?

No. This is a parts catalog, not a service manual. It lists part numbers, thread sizes, and interchange information. For assembly torque values you need the corresponding Bendix service manual (e.g., the TU-FLO series manual).

What is the difference between minor and major repair kits listed on page 1?

Minor kits replace seals, O-rings, and diaphragms. Major kits add the piston assembly, spring, and sometimes the valve body internal components. The catalog shows both part numbers and the V.M.R.S. each kit fits. For the E-5, minor is 281084, major is 289334.

Can I use this catalog to order parts for a 1970s truck with an E-2 valve?

Yes. The catalog covers the basic E-2 valve (p/n 229500/229501) and its maintenance kits, but note that the treadle and mounting plate are not furnished — you must refer to the Master Parts Catalog for those. The V.M.R.S. 13-010-019 applies to the E-2, so verify your valve revision matches.

When you are rebuilding air brake valves, the difference between a correct part number and a close guess is the difference between a safe stop and a roadside failure. Access the Factory Manual and keep it on your shop tablet or print it out. Every page is the real Bendix document, not a recompiled aftermarket version. You will use it every time you touch an E-2, E-3, E-5, E-7, or E-8P on a truck. The 26 pages cover the threaded ports, the kit breakdowns, and the interchange notes that keep your work on spec. For a broader view of heavy-duty braking systems, check the Automotive Industry Overview and the underlying Internal Combustion Engine fundamentals. But for parts orders, this catalog is what I reach for.