Description

Case 1500, 1800, 2000 1977 Parts Catalog

You’ve been burned by aftermarket parts lists that skip serial number breaks. A cylinder head gasket that’s one number off means a tear-down job repeats. This Case 1500, 1800, 2000 1977 Parts Catalog fixes that. It’s the factory print from November 1977, 116 pages, covering the 504B diesel engine used in Cruz-Crane units. No guesswork on which part fits which machine — the manual gives you exact OEM part numbers for every component, from the water pump to the injection pump drive. If you’re rebuilding a 1500, 1800, or 2000, this is the only parts list you should trust.

504B Diesel Engine: Complete Parts Breakdown

The catalog opens with the 504B engine assembly. Every major group is broken out: cylinder head and cover (page 31), camshaft (41), crankshaft (53), connecting rods (63), pistons (63), valve mechanism (37). Page numbers are printed on each section, so you flip directly to the parts you need. The exploded diagrams are factory line drawings, not blurred scans. Each callout matches a specific part number — no generic interchange numbers.

Why the Serial Number Matters

Two separate table-of-contents sections exist: A136578 for units with serial number 6231779 and after, and A137712 for 40BC/40BLC units with serial number 6270523 and after. Ignore these cut-offs and you can order a water manifold that won’t bolt up. The catalog clearly marks which section applies to your machine. Check your chassis serial before you order anything.

3 Critical Sections You’ll Use Most

Fuel injection system (page 75) – injection nozzles (85), injection pump (91), pump drive (81), fuel filter system (77). Wrong injection pump part numbers cause timing issues that melt pistons. This manual gives you the OEM pump and drive-gear numbers.

Starter and solenoid (pages 95, 97, 99) – the 504B uses a specific starter. The part number changed across production runs. Page 95 and 97 list two different starter assemblies; page 99 covers the solenoid alone. Cross-check your serial.

Engine gasket kits (page 73) – a single kit number covers the entire engine. No need to piece together individual gaskets. The kit includes all seals and O-rings for the cylinder head, oil pan, timing cover, and manifolds.

Get the Right Part Number the First Time

Flip to any section. The left column shows the figure reference and part number. Right column lists description and quantity per assembly. Every bolt, washer, and seal is listed. For example, the cylinder head cover gasket — you get the exact thickness and material callout. No aftermarket catalog substitutes a different gasket because it’s “close enough.” You’ll also find the heat exchanger (page 13) and oil cooler parts — critical for machines working in hot San Antonio conditions.

Source Validity: Factory Case Print, Not Aftermarket

This is a genuine Case publication, printed in the U.S.A. in 1977. The PDF is a direct scan of the original — no re-typing, no editorial changes. Aftermarket parts catalogs often mis-copy torque specs or omit supersession notes. This factory manual retains the original part numbers and supersession cross-references. If a part was updated, the catalog shows the newer number alongside the old. Automotive Industry Overview includes background on Case construction equipment, but for parts data you need the original.

Don’t trust a third-party PDF that claims to cover your 1500, 1800, or 2000. Case 1500 1800 2000 Cruz-Crane Operators Manual pairs with this catalog for operation details. Case 1500 1800 2000 Cruz-Crane Parts Catalog is the same document you’re viewing — we also carry a separate Case 1500, 1800, 2000 Service Manual – Factory Hydraulic & Mechanical Specs for repair procedures. Automotive Industry Overview provides context, but keep this catalog on your bench when ordering parts.

FAQ

Does this parts catalog cover the 504B engine?

Yes, that engine is the focus.

What’s the difference between the two table-of-contents sections?

The catalog lists two separate parts groupings because Case changed component suppliers and part numbers midway through production. Section A136578 applies to units with serial number 6231779 and after (1500/1800/2000 Cruz-Crane). Section A137712 applies to 40BC/40BLC units with serial 6270523 and after. Using the wrong section will cause you to order, for example, a camshaft with different lobe profiles or a starter with incorrect mounting flange. Always verify your machine’s serial number plate before matching it to the correct section. The part numbers are not interchangeable.

Access the Factory Manual — get the exact PDF that Case issued in 1977. No re-typed, no re-numbered, no guesswork.