Description

Bolens 5118HS, 5120H, 520H Parts Catalog

Ever order a part for a DuraTrac tractor and end up with something that doesn’t fit? That happens when you rely on aftermarket supersession charts or memory. This **Bolens 5118HS, 5120H, 520H Parts Catalog** kills that guessing. 22 pages of factory exploded views and part numbers straight from Bolens. No reprints, no scanned garbage. You get the same reference that dealers used when these tractors were new.

Page 2 of the catalog alone lists over 80 line items for the body work and trim assembly. You see the exact Bolens part number, the description (e.g., “F.L. Lock Screw, 3/8-16 x 1”), and the quantity needed. That means you order once. No returns, no lost time waiting on a wrong gasket or fastener.

Body Work and Trim Assembly Breakdown

The catalog dedicates its first two pages to the body and trim – seats, hood panels, decals, fenders, and the little hardware that holds it all together. I have wasted more hours than I want to admit hunting down a specific nylon washer or a shoulder bolt for a Bolens seat pivot. This manual lists part number 1705793 (Nylon Washer, qty 4) and 1755415 (Shoulder Bolt, qty 2). No guesswork. If you need the hood pad, it’s 1751616. If the grill cap is cracked, it’s 755628021. Every fastener uses Imperial thread sizes – 1/4-20, 5/16-18, 3/8-16 – so you can match hardware without conversion charts.

What Part Numbers Does This 22-Page Parts Catalog Cover?

Models 5118HS, 5120H, and 520H. All three share the same basic body structure, but the catalog flags where a part is specific to one model. For instance, lever assemblies 1755510 and 1755512 are listed as “5120H only” with a note about the pin (1186403). That kind of model-specific detail is what keeps you from ordering a 5120H lever for a 5118HS. The catalog also includes decals – ignition, throttle, warning, and side cover – each with its own factory number. No generic “fits all” labels.

Using the Ref Number System

Every part on the exploded view gets a reference number (Ref 1 through 85+). That number links to the parts list with description, part number, and quantity. For example, Ref 6 is Decal, Ignition (1755463). Ref 52 is Instrument Panel Service (1755426). If you are rebuilding a tractor that someone else disassembled and you find a loose bracket, you look at the drawing, find the ref number, then go straight to the list. No flipping back and forth between vague diagrams. The layout is consistent: body work first, then fasteners, then specialty items like the fuel fill shaft (1755404) and the seat support assembly (175562001).

3 Systems Illustrated in This Parts Catalog

While it is not a service manual, the catalog covers three main systems: (1) Body and Trim – hood, fenders, foot rests, grille, decals. (2) Seating and Controls – seat assembly, pivot bracket, throttle decal, instrument panel. (3) Engine Bay Accessories – fuel fill gasket, side covers, baffles. Each system is broken into sub-assemblies. For example, the fender assembly includes bumper straps (1755517), pop rivets (1757448), and a running board support (17490040). That level of detail saves you from having to disassemble and trace back every bolt.

OEM Documentation: Why Aftermarket Falls Short

Aftermarket parts catalogs often compress multiple model years into one drawing, leaving out critical hardware revisions. This is a factory Bolens document. The part numbers match what Bolens stamped on the originals. The fastener callouts – like “F.L. Lock Nut, 1/4-20” – are the exact hardware specifications. If you have a 520H and need the fender decals, the catalog gives you 1755624 (R.H.) and 1755625 (L.H.). An aftermarket source might list a generic decal that doesn’t peel right or fades in two seasons. That’s not a risk worth taking when the factory version is available for access. For more context on the industry standard for such documentation, refer to the Automotive Industry Overview on Wikipedia. Also check the Automotive Industry Overview for background on why OEM data matters.

Related manuals worth adding to your workbench:
Bolens DuraTrac Tractor 5100 Series Service Manual covers repairs and specs.
FMC Bolens 1666 Parts Catalog – 23 Page Factory Parts List is a similar resource for older models.
FMC Bolens 1660 Parts Catalog – 23-Page Factory Parts List helps if you work on that platform.

Does this catalog include service procedures like torque specs?

No. This is purely a parts catalog with exploded views and part numbers. You need the service manual for that.

How many pages are there?

22 pages.

Can I use aftermarket parts with these numbers?

You can cross-reference, but factory numbers are what you need to order from Bolens. Aftermarket catalogs sometimes reuse numbers for different parts or skip revisions. That leads to returns and downtime. Stick to OEM specs. That is the only way to guarantee fitment on a DuraTrac tractor like the 5118HS, 5120H, or 520H. I have seen guys order a seat cushion based on an aftermarket number only to find the bolt holes are off by half an inch. Not worth it. The factory catalog gives you the exact part number Bolens used when it left the assembly line. Use it.

Is the wiring diagram included?

No. This parts catalog covers body, trim, and other assemblies but not electrical schematics. You will need a factory service manual for wiring.

You have the tractor. You have the tools. Now get the right parts without calling the dealer every time. Access the Factory Manual – it’s a PDF that you can keep on your tablet or print for the shop wall.