Description

Manitou 804866 Parts Catalog – Factory Specs for the 3-Stage Mast

If you’ve ever tried matching a worn-out cylinder seal or a busted chain sheave using aftermarket sketches, you know the headache. The lines blur, the callouts don’t match, and you end up ordering the wrong part twice. That stops here. This Manitou 804866 Parts Catalog is the OEM document – the same one the dealer’s parts counter pulls up. Thirty-two pages of exploded views, item numbers, and part numbers that actually align with what’s bolted to your mast. No guesswork, no reprints.

Rail System and Core Mast Structure

Section 1.00 lays out the RAIL SYSTEM – the inner and outer uprights that guide the mast. You get the stamped part numbers for individual rail assemblies (check the top end of each rail for the factory number). The manual tells you exactly where to find that stamp. If you’re rebuilding a mast that’s been welded or modified, this section is where you start. Part quantities per model are listed so you don’t under-order.

Primary Cylinder vs. Secondary Cylinders: What You Need

Sections 2.00 and 3.00 cover the PRIMARY CYLINDER and SECONDARY CYLINDERS. Each cylinder assembly has its own exploded diagram with item numbers. The manual notes that cylinder part numbers are stamped along the upper barrel – a detail aftermarket catalogs often skip. If your lift struggles or drifts, these sections get you the correct seal kit or complete replacement cylinder without the back-and-forth. The cylinder groups are separated because the primary and secondary are not interchangeable.

Chain System and Hydraulic Routing

Chain system (4.00) and HYDRAULIC SYSTEM (5.00) cover the lift chains, sheaves, hoses, and fittings. The hose kit sections (6.00 and 7.00) break out the single-function RH and LH hose assemblies – critical when one side leaks and you need the exact pre-formed hose with the right end fittings. Section 5.00 includes the hydraulic block and lines. If you’re swapping a hose, the part number is right there next to the illustration.

Why a Factory Parts Catalog Over Aftermarket PDFs

Aftermarket parts catalogs often re-draw diagrams and re-number items, introducing errors. This catalog comes from Manitou North America – the same folks who built the mast. The 32 pages were printed from factory CAD files, not scanned and OCR’d from a third-gen copy. The INDEX on pages 1-2 lists every major assembly: CARRIAGE ITA TYPE (8.00), CARRIAGE SHAFT TYPE (9.00), FORK POSITIONER 68 IN. (10.00), and DECALS (11.00). Every item number ties back to a factory part number. If you need a decal for the load rating, it’s in section 11.00. For the full Manitou parts lineup, check the K-D Manitou MVT 1230L MVT1230LC Parts Catalog – 264 Pages or the K-D Manitou K5705, K5797, K5755, K1479, K1787 1991 Parts Catalog.

3 Reasons This Catalog Belongs on Your Bench

1. OEM Part Numbers – No Cross-References Needed. Every number in this catalog was issued by Manitou. You order the exact piece, not a “replaces” gamble.
2. Stamp Location Guidance. The manual tells you exactly where to find the stamped part numbers on rails, carriages, and cylinders – saving you from tearing apart the mast to identify it.
3. Serial Number Dependency. The manual emphasizes that the mast serial number (on the ID plate, right outer rail, eye level) is required for ordering. This catalog is designed to work with that serial – aftermarket books ignore it.

If you’re dealing with a mixed-fleet shop, you might also need the K-D Manitou K5705, K5797, K5755, K1479 2000 Parts Catalog | OEM Factory Specs. For general background on the powerplants these masts mount to, see this Wikipedia article on diesel engines. One more reference: this Wikipedia article on diesel engines.

Does this parts catalog include assembly diagrams?

Yes – exploded views with item numbers for each section. Not step-by-step repair instructions.

Can I use this to order parts for a 804866 mast?

Yes. The catalog is designed for the 804866 3-stage mast. You will need the mast serial number from the ID plate to get the exact part application. The manual includes a blank space on page 3 to record that number.

How do I find the correct part number using this manual?

Locate the assembly section (e.g., 2.00 PRIMARY CYLINDER). Find the item number in the illustration. Go to the item table next to the picture – the part number is directly to the right of the item number, along with description, quantity, and compatible mast model numbers. If the part you need isn’t in the illustration, check the INDEX at the front of the catalog.

Why is the serial number critical when ordering parts?

Manitou updates mast components over production life. A cylinder from an early 804866 may have a different barrel length than a later version. The serial number ties your specific mast to the correct revision of each part. If you order without the serial, you risk getting a part that doesn’t fit. The manual states on page 3 that all modifications must be authorized by Manitou, and the parts department needs the serial to verify compatibility. Write the serial on page 3 as soon as you get this catalog.

This catalog isn’t a repair guide – it’s a parts identification tool. If you need torque specs or service procedures, that’s a different document. But if you’re rebuilding a mast and you need the right seal, bearing, or decal, this 32-page document is the only source you should trust. Write the mast serial number on page 3, then Access the Factory Manual and keep it in your laptop case or toolbox. You’ll use it every time you place a parts order.