Description

Clark-hurth 75 Parts Catalog – OEM Factory Exploded Views & Part Numbers

If you are rebuilding a Clark-hurth 75 timber tractor and find yourself staring at a pile of hydraulic cylinders with no idea which seal kit fits, you already know the cost of guessing. I have seen guys order the wrong brake master cylinder twice because they did not have the original parts breakdown. This Clark-hurth 75 Parts Catalog puts every cylinder, brake assembly, and drivetrain component on paper with the factory numbering. No reprints, no third-party summaries – just the 118 pages that Clark issued. The Parts Catalog covers the Model 75 Timber Tractor (serial number record on page 1) and gives you exploded diagrams for everything from the cab to the rear axle.

Clark-hurth 75 Parts Catalog: Cylinder and Brake Coverage

The index starts right off with the cylinder groups. You have the Brake Master Cylinder on page 80, Steering Cylinder on page 43, Clamp Cylinder on page 56, Dozer Blade Cylinder on pages 57-58, and Loading Cylinder on page 57. Each entry lists the part numbers for the complete cylinder, seals, and attaching hardware. When you need to rebuild a brake system, the Brake section (pages 35-37) shows the front and rear brake assemblies, parking brake, and all control linkages. This catalog will keep you from ordering a cylinder that does not match your serial number range.

Transmission and Converter Hydraulic System (Pages 15-25)

The torque converter and transmission are covered in detail. Converter assembly diagrams on pages 13,14,17,18,21,23 – the charging pump on page 26, and the whole hydraulic oil filter and lines layout across pages 15,19,24,25. If you are diagnosing a converter charging issue, you need the exact pump part number and the filter element cross-reference. That data lives here. The main hydraulic system (pages 50-54) and steering system (pages 44-46) are also broken down with valve assemblies and hose routing.

Dozer Blade and Winch Attachments

Field service on these tractors often means pulling the dozer blade or winch. Pages 57-58 detail the blade cylinder, pages 65 give you the blade cutting edges, and the winch cable, carrier, and motor are indexed on pages 53-54 and 63. The “A” frame and clamp carrier cylinder (page 56) are part of the logging arch – if you are replacing a worn clamp, the exploded view shows every bushing and pin. This catalog saves you from disassembling the whole arch to find a missing spacer.

Front and Rear Drive Axle Assemblies

Axle work without a parts list is a fast track to broken ring gears. The front drive differential and carrier assembly (page 31) includes the No-Spin unit, and the rear drive assembly (page 33) has the planet spider (page 34). The axle shafts, hubs, and final drives are all there. If you need a bearing for the center trunnion (page 70), the part number is right in the exploded view. You can order with confidence because the catalog is Clark’s own documentation.

Source Authenticity: OEM vs Aftermarket Part Numbers

Aftermarket catalogs often cross-reference to generic numbers that may not fit the exact revision of a Clark-hurth 75 component. This manual is the factory release – printed in the U.S.A., part number 1.5C7648-R1. It includes the original note: “To assure the best results … it is important that genuine ‘Clark’ Parts be used.” You are not getting a reprint or a scan of a scan. The 118 pages are clean, the index is complete, and all page references match the original binding. If you are ordering from a distributor, you hand them the Clark part number from this book. Period.

4 Questions Guys Usually Ask About This Manual

Does this catalog include torque specs for the cylinder bolts?

No. This is a parts catalog – it shows exploded views and part numbers. For torque values you need the service manual, which we also carry: CLARK GPH DPH 50 60 70 75 Service Manual.

How do I identify the correct brake master cylinder?

Turn to page 80. The exploded view of the brake master cylinder lists each component by part number. Compare the cylinder bore and mounting pattern to your machine’s serial number. If your tractor has a power brake valve (page 80 as well), the catalog shows that assembly too. Without this page you risk buying the wrong bore size – a mistake that costs a full day of shipping returns.

Can I use this catalog for the Clark-hurth 85III model?

No, this catalog is specifically for the Model 75 Timber Tractor. For the 85III, check Clark-hurth 85III 1965 Parts Catalog – Factory OEM Specs. The 75 has different axle and cylinder part numbers.

Is the hydraulic pump section detailed enough to order a replacement?

Yes. The main hydraulic pump (page 55), steering pump (page 49), and converter charging pump (page 26) each have their own exploded diagrams with all internal seals, gears, and housings listed. You will see the pump model number and the Clark part number for the complete assembly. The steering system oil filter pages (44-46) also show the canister and element part numbers.

Related Manuals You Might Need

• CLARK GPH DPH 50 60 70 75 Service Manual – for repair procedures and torque specs.
• Clark-hurth L320 1991 Parts Catalog – 690 Pages OEM Specs – for larger loader models.
• Clark-hurth 85III 1965 Parts Catalog – Factory OEM Specs – for the 85III tractor.
• External reference: Automotive Industry Overview and Internal Combustion Engine for general background.

You have the machine serial number? Then you have everything you need to cross-check every component. Access the Factory Manual now and get the real part numbers on your screen in two clicks.