Description

Alfa Romeo 33 1.3L, 33 1.4L, 33 1.5L, 33 1.5L 4×4, 33 1.7L 16V Parts Catalog

You’ve got a 33 1.7L 16V on the lift, oil pouring out of the front crank seal. You pull the old one, measure it, order a generic replacement. It leaks. Why? Because the factory seal is 35x58x10mm ACM, not the standard metric. That’s the difference between this Parts Catalog and a parts store guess. This is the exact document the dealer used to order components. 397 pages, no reprints, no aftermarket garbage. If you want the right part the first time, you start here.

Alfa Romeo 33 1.3L, 33 1.4L, 33 1.5L, 33 1.5L 4×4, 33 1.7L 16V Parts Catalog: 397 Pages of Factory Data

The catalog breaks down every variation of the Alfa Romeo 33 series from 1983 through 1989. That includes the 33 1.3L, 33 1.4L, 33 1.5L, the 33 1.5L 4×4 with its transfer case components, and the 33 1.7L 16V twin-cam. Each model gets its own section with exploded diagrams and part numbers. On page 1 you get the model index with engine codes and production dates—AR 30502 for the 1.3L, AR 30746 for the 1.7L 16V, and so on. This is the map.

Model Index: Engine Codes and Production Windows

Flip to page 2 and you see the seal dimensions. Not generic sizes. Factory-specified ACM rubber, 35x58x10mm for the front crank, 62x80x12mm for the rear. The page also lists the engine displacement, valve count, and fuel system type—carburetor or injection. If you’re rebuilding a 33 1.5L 4×4 and need the correct oil seal, the code AR 30146 points you right to the diagram. No cross-referencing third-party websites. This is original Alfa Romeo documentation.

Production windows are tight. The 33 1.4L i.e. ran from 06/91 to 09/94 with engine codes AR 30587 and AR 30755. A 1992 1.4L uses a different crankshaft seal than a 1983 1.3L. The catalog catches those differences. Missing that detail means ordering the wrong part, tearing the car back down, and eating the cost.

Oil Seal Specs from the Factory

On page 2 the manual lists ACM (polyacrylate) seals for most 33 models. The 1.3L and 1.4L share a 40x56x10mm ACM seal on the intermediate shaft. The 1.7L 16V uses a Viton (FPM) seal on the camshaft. If you throw a generic rubber seal in there, it cooks in 20,000 miles. The catalog tells you the material, the dimensions, and the Alfa Romeo part number. That’s the only way to get it right.

The Automotive Industry Overview confirms that OEM seal compounds are designed for specific temperature and oil resistance. Second-guessing that on a 33 1.5L 4×4 time bomb is a mistake you can skip.

Does This Catalog Cover the 33 1.5L 4×4?

Yes. The 33 1.5L 4×4 gets its own line in the index with engine codes AR 30146, AR 30182, AR 30508, AR 30520, and AR 30588. The transfer case components are listed separately. If you need the front differential seal, the catalog shows it. For the 33 1.7L 16V 4×4, engine code AR 30747, the catalog covers that too. The wiring and brake parts aren’t here—this is a parts catalog, not a service manual. For service steps, grab the Alfa Romeo 33 Workshop Manual. And if you’re installing A/C, the Alfa Romeo 33 Air Conditioning Installation Manual covers that system. For the older Alfetta chassis, the Alfa Romeo Alfetta Owners Workshop Manual 1973-1987 – Section: Chapter 1 is available separately.

Order Parts Without the Headache

Every part number in this catalog is a genuine Alfa Romeo reference. Systems like the battery and starter are covered—check the electrical section. For general battery knowledge, see Automotive Battery. But for the actual battery tray and cable part numbers, this catalog is the source. 397 pages, no fluff, no guesswork. You look up the engine code, find the exploded diagram, order the part. Done.

Small shop guys: If you’re billing time, this catalog pays for itself on the first job where the aftermarket counter hands you the wrong seal. Hand the customer the part number, order it, move on. That’s how you keep a 6-bay shop running without comebacks.

FAQ

Is this a service manual with repair procedures?

No. It is a parts catalog for ordering components.

How do I find the part number for a 33 1.7L 16V crank seal?

Open the catalog to the model index on page 1. Locate the 33 1.7L 16V line—engine code AR 30746 or AR 30747. The index tells you which section to turn to (look for the page number listed next to the model, typically around page 12 based on the OCR). In that section, the crank seal diagram shows dimensions 35x58x10mm and lists the Alfa Romeo part number. Order that exact number. Do not substitute a generic seal because the material (ACM vs FPM) and exact cross-section matter. The 1.7L 16V uses a Viton front seal; the 1.3L uses ACM. If you order the wrong one, it leaks within a year.

You don’t need to hope a third-party database is correct. Access the Factory Manual and keep a copy on your shop tablet. It’s the same 397-page PDF the factory sent to dealers in the 80s. Every part number is verifiable. Every seal dimension is empirical. Stop wasting money on returns. Access the manual now.

• Related Manuals
• Alfa Romeo 33 Workshop Manual
• Alfa Romeo 33 Air Conditioning Installation Manual
• Alfa Romeo Alfetta Owners Workshop Manual 1973-1987 – Section: Chapter 1