Clark Equipment 45A Parts Catalog – OEM Factory Reference for Tractor Shovels

If you’ve ever wasted an afternoon trying to match a worn-out hydraulic valve from a blurry photocopy, you know the headache. This Clark Equipment 45A Parts Catalog fixes that. It’s 90 pages of factory part numbers, exploded views, and the exact specs Clark intended. No aftermarket reinterpretation. I’ve torn down enough 45A tractor shovels to tell you: having the correct part number before you call the dealer saves you half a day. This manual is the difference between guessing and knowing.

Bucket Control Valve and Hydraulic Pump Coverage

The Bucket Control Valve is a common failure point on these machines. Page 59 breaks it down – every spring, spool, and seal listed with Clark’s own part numbers. Same for the Boom and Bucket Hydraulic Pump on pages 52-53. No generic “fits-all” junk. If you need a Cylinder rebuild – the Boom Cylinder Assembly is on page 61, the Bucket Cylinder on page 60. Each exploded diagram shows the exact o-ring and gland dimensions factory-installed. Don’t trust aftermarket catalogs that guess the stroke length; this manual lists the actual Clark engineering data.

Brake Systems: Front, Rear, and Parking – Factory Part Numbers

Brake work on a 45A is straightforward if you have the right parts. The Brake Assembly – Front (page 32) and Brake Assembly – Rear (page 38) include the wheel cylinder, shoes, and springs. The Brake Master Cylinder is on page 42. The Parking Brake Assembly (page 19) has its own drum and band specs. One wrong part number for a brake shoe pad thickness and you’re pulling the axle again. This catalog gives you the Clark engineering part numbers so you don’t gamble.

Axle and Differential Assemblies – Front Drive & Rear Drive Steer

The Front Drive Axle Assembly starts on page 29, the Rear Drive Steer Axle on page 35. The differential and carrier assemblies are broken down on pages 31 and 37. The Axle Tie Rod (page 33) is a separate section because it gets bent and needs replacement. If you’re rebuilding a steer axle, you need the kingpin and bushing part numbers – this catalog has them. Don’t try to cross-reference with a generic bearing chart; use the Clark numbers.

Engine Mounts and Support Parts – Page 1 Details

Page 1 covers the Engine Assembly, mounting parts, and the oil pressure sender unit. The Engine Accessories and Support Parts section includes the fan, pulley, and bracket part numbers. If your 45A has a Continental gas engine (the common powerplant), you’ll need the correct gasket set and fastener lengths. The manual also lists the Choke Cable and Accelerator Pedal and Linkage on page 2. The Air Cleaner, Muffler and Connections section (page 3) gives you the intake pipe part number – often misordered because the aftermarket lists a generic filter housing.

Why a Factory Parts Catalog Beats Aftermarket Lists

Aftermarket parts lists are often compiled from old database dumps. They miss revisions. This catalog is a direct scan of Clark Equipment Company’s own publication – Part Manual No. 2110 for the Model 45A Tractor Shovel. The Valve sections (Bucket Control Valve page 59, Bucket Level Valve page 54, Control Valve Transmission page 18) are all from the same source. I’ve seen shops order a newer valve spool because an online listing said “fits 45A” – only to find the bore diameter was wrong. This catalog bookmarks every page with original Clark headings. For the rear steer axle, the Steering Cylinder (page 48) and Drag Link (page 49) are precisely identified.

FAQ – Common Questions About the Clark 45A Parts Catalog

Does this catalog include part numbers for the brake wheel cylinder?

Yes. The Brake Wheel Cylinder is listed on page 39 with the full assembly and individual seal part numbers.

How many pages cover the hydraulic system?

Multiple sections: Boom and Bucket Hydraulic Pump pages 52-53, Hydraulic System page 57, Bucket Control Valve page 59, plus the cylinder assemblies. Over a dozen pages dedicated to hydraulics.

Is this the same as the service repair manual?

No. This is a Parts Catalog – it shows exploded views and part numbers, not repair procedures. For step-by-step rebuild instructions you’d need the separate service manual. However, if you’re ordering parts, this is the only document you should trust.

What serial numbers does this manual cover?

Per the introductory page, it covers Waukesha serial range C2ZA9-10 through C2ZA9-32, and C3ZA9-10 and thereafter. Machines with optional powerplants have supplements at the rear of the manual.

Other Clark models you might need: the Clark 45A Tractor Shovel Parts Manual No. 1921 covers an earlier revision, and the Clark Equipment 75B 1989 Parts Catalog – OEM Factory Manual is for the larger loader. The Clark Equipment 310, 310III Parts Catalog – OEM Factory Manual handles the compact backhoe line. For background on how these machines fit into the broader Automotive Industry Overview, see the Automotive Industry Overview article.

If you’re tearing into a 45A, you need the right numbers the first time. Download the Factory Manual and keep it on your bench. Your parts counter will thank you.