Description

Troy-bilt GTX 16, GTX 18, GTX 20 1998 Parts Catalog

If you are working on a Troy-bilt GTX 16, GTX 18, or GTX 20 and you reach for an aftermarket bolt because the original is stripped, stop. I have seen that go wrong — wrong thread pitch, wrong grade, and then the whole assembly loosens up at operating speed. This 1998 Troy-bilt Parts Catalog keeps you out of that trouble. 32 pages of factory part numbers, exactly what was on the line when these tractors were built. No guesswork on fasteners, no hunting for the right washer.

Body and Trim Assembly: Page 2 Breakdown

Page 2 of this catalog gives you the full Body and Trim Assembly exploded view. You get reference numbers for every piece — from the hex cap screw 3/8-16 x 3/4 (part 1100068) to the seat support (683-0261). Each entry includes the Troy-bilt part number, a description (like “Screw:Hex Cap:3/8-16 x 3/4”), and the quantity needed. If your hood is cracked or a foot pad is missing, you have the exact number to order. Aftermarket catalogs often skip these fasteners or bundle them wrong. This catalog lists them individually.

3 Mistakes a Parts Catalog Prevents

First mistake: using a bolt that looks right but has the wrong thread pitch. The catalog lists the exact screw, like “Scr:Whiz:Lock 3/8-16 x 3/4” for the grille support. Second mistake: ordering parts by model name only — the catalog breaks down by serial number (GTX 18 model 13074 covers 130741200101-130741299999). Third mistake: ignoring washers and locknuts. Those flat washers (part 1100256) and flange locknuts (1186393) are listed with quantities. Skip them and you get loose panels.

Verify Fastener Types Before Reassembly

Every screw, nut, and washer in this catalog has a specific part number. I have seen guys grab a generic 3/8-16 bolt and wonder why the bumper strap rattles. The catalog calls out “Bolt:Carriage: .312-18x .62” for the seat channel. That is not the same as a hex head. Look at page 5 for the seat adjustment hardware — you will see the same attention to detail. Use the exact fastener or you will be back in here next week.

Inside the Troy-bilt GTX 16/18/20 Parts Catalog

The manual covers three models: GTX 16 (13101), GTX 18 (13074), and GTX 20 (13076). Serial number ranges are listed on page 1. The Body and Trim section starts on page 2 and runs through page 5. That is where you find the hood, grille, fender, run boards, and seat components. Page 5 specifically covers the seat adjustment for model 13101. The rest of the 32 pages include other assemblies like the engine mounting, driveline, and electrical — each with the same level of part number detail.

Is This Manual Enough for a Full Restoration?

For ordering replacement parts, yes. For torque specs, fluid capacities, or repair procedures, you need the service manual. This is a parts catalog, not a repair guide. Troy-Bilt GTX 16 18 20 1998 Operators Manual covers operation. Troy-Bilt GTX 16 GTX 18 GTX 20 Operator’s Manual is also available. But if you are ordering a new grille or a set of bolts, this catalog is the only source that gives you the right part number the first time. Automotive Industry Overview shows why OEM documentation matters for safety and fit. Automotive Industry Overview is worth a read if you want to understand the stakes.

Does this catalog include torque specs?

No. Torque values are in the separate service manual.

Can I use this catalog to order parts from any dealer?

Yes. The part numbers are Troy-bilt OEM numbers. Any dealer that can look up Troy-bilt parts will be able to cross-reference them. However, be aware that some parts may have been superseded by later revisions. The catalog lists original 1998 part numbers. If you call a dealer, you might need to tell them the model and serial number range from page 1. For example, the GTX 18 model 13074 covers serial numbers 130741200101 through 130741299999. If your tractor falls outside that range, the parts might be different. This catalog is accurate for the listed serial blocks.

That is the whole point of this 32-page catalog — no fluff, no copycat part numbers, just the factory data. If you need to rebuild a Troy-bilt GTX 16, GTX 18, or GTX 20 and you want to get the right parts the first time, access the Factory Manual from AutoRepairManuals. Troy-Bilt GTX 16 GTX 18 GTX 20 Parts Catalog is also listed if you need a second copy.