All 391 pages of this Gehl/Mustang CTL60, CTL70, CTL80, MTL16, MTL20, MTL25 Parts Catalog (OEM #917491) exist for one purpose: putting the exact factory part number in front of you before you pick up the phone. Inside, you get exploded-view diagrams for every major system: track rollers, front idlers, travel devices, mainframe, lift arms, hydraulic control valves, pilot valves, tandem pump, gear pump, and the complete cab assembly. A dedicated Kits section covers every HVAC variant, door kit, pre-cleaner kit, and auxiliary coupler organized by machine size, plus wiring diagrams for the electrical system. Your CTL60 standard crawler belt is part #181929; the wide-tread version is #185637. Wrong part ordered twice this week? This catalog is bookmarked by system and keyword-searchable. Pull it up on your phone, find the exploded view, confirm the number, and order right the first time.
What's Inside This Gehl, Mustang CTL60 & variants Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Main Loader Components | 5 | - |
| Piping; Operation Lever | 6-32 | Travel Device, Front Idler, Track Roller a, Track Adjuster, Mainframe, Crawler Belt, Operation Lever and Stand, Lift Arm Stop (with Hook Assembly) |
| Engine and Accessories | 33-67 | - |
| Electrical | 68-99 | Engine Control, Control Box - Right and Left, Drain Plug |
| Control Valve and Accessories | 100-119 | Battery, Rear Lamp, Room Lamp, Maintenance Light Socket |
| Covers - Rear Grille and Engine | 120-179 | Piping; Hydraulic Tank and Drive Motors, Piping, Hydraulic Tank and Drive Motors, Fuel Tank and Fuel Piping, Pump Drive, Hydraulic Tank |
| Mirrors - Rear and Rearview, Plus Manual Box | 180-205 | Seat and Seat Components, Floor Frame, ROPS (with Lights and Harness), Restraint Bar, Mirrors - Rear and Rearview, Plus Manual Box |
| Piping; Lift Arm | 206-235 | Lift Arm, Attachment System, Piping |
| Decals | 236-250 | Rear Auxiliary Line, Auxiliary Hydraulics |
| Hydraulic Components | 251-307 | Control Valve, Inlet Housing Assembly, Block Assemblies, Self-Level Valve, Pilot Valve - Right and Left, Handle Assemblies, Sub Valve, Remote Control Valve |
| Kits and Accessories | 308-391 | Available Kits and Filters Listing, And 810121 Pre-Cleaner Kit, Pre-Cleaner Kit, And 810637 Pre-Cleaner Kit, Door Kit, Universal Radio Kit, ROPS/FOPS Gas Spring Replacement |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| CTL60 | ||
| Crawler belt replacement part number and dimensions | 181929 (12.75X2.875X1.375) | p. 16 |
| Wide tread track replacement part number and dimensions | 185637 (13.00X3.625X1.125) | p. 16 |
| Track adjuster spring assembly (L.H.) replacement part number | 180912 | p. 10 |
| Track adjuster spring assembly (R.H.) replacement part number | 180913 | p. 10 |
| Track roller A sub assembly replacement part number | 180775 | p. 6 |
| Sprocket replacement part number | 180917B | p. 11 |
| Idler assembly replacement part number | 180477 | p. 8 |
| Air cleaner outer replacement part number | 181878 | p. 309 |
| Air cleaner inner replacement part number | 181880 | p. 309 |
| CTL70, CTL80 | ||
| Track roller A sub assembly replacement part number | 181120 | p. 6 |
| Idler sub assembly/front replacement part number | 181127 | p. 9 |
| CTL70 | ||
| Sprocket replacement part number | 182792A | p. 13 |
Gehl, Mustang CTL60 & variants Common Problems This Manual Covers
Gehl CTL60 replacement crawler belt part number, standard versus wide tread track configuration p. 16
Check the crawler belt exploded view on page 16. For a CTL60 with standard tread, order part #181929 (12.75x2.875x1.375 in.). If the machine runs wide tread, order part #185637 (13.00x3.625x1.125 in.) instead. Confirm the actual tread width on the machine before ordering to avoid a return.
Manual Section: Track System Component RepairWorn bottom track roller needs replacing, which part number fits this undercarriage p. 6
Pull the parts list at page 6 for roller A and page 7 for roller B. On a CTL60, roller A is #180775 and roller B is #180776; on a CTL70 or CTL80, roller A is #181120 and roller B is #181124. When reinstalling, torque M8 grade 12.9 fasteners to 32.5 ft-lbs dry per the specs on page 390.
Manual Section: Track System Component RepairTrack adjuster cylinder or spring assembly failed, need correct part number by model p. 10
Open the track adjuster parts diagram on page 10. For a CTL60, the spring assembly is #180912 (L.H.) and #180913 (R.H.); the cylinder assembly is #188174 (L.H.) and #188175 (R.H.). The shim spec on page 35 shows CTL60 uses 1.6 mm shims. The grease valve fitting, #180987, is shared across all models.
Manual Section: Track System Component RepairSprocket worn past service limit, need correct replacement part number for this model p. 11
Check the drivetrain diagram on page 11 and use sprocket wear gauge #190762 to confirm replacement before ordering. CTL60 takes #180917B (page 11) or #180917A (page 12) depending on position; CTL70 uses #182792A (page 13) or #181147A (page 14); CTL80 takes #181147C (page 15). Torque mounting hardware to 32.5 ft-lbs dry per page 390.
Manual Section: Track System Component RepairAir filter service overdue, need outer and inner element part numbers by model p. 309
Find the kits and accessories listing at page 309. On a CTL60, order outer element #181878 and inner safety element #181880. For CTL70 or CTL80, the outer is #L99453 and the inner is #L99967. Replace both elements together when servicing. For pre-cleaner kit hardware, torque 1/4-20 fasteners to 12 ft-lbs dry per page 390.
Manual Section: Kits and AccessoriesBattery dead and needs replacement, unsure which CCA rating fits this model p. 100
Check the electrical parts list at page 100. All models take a 12 V battery, but CCA differs by platform: CTL60, CTL70, MTL16, and MTL20 require 600 CCA; CTL80 and MTL25 require 800 CCA (page 102). Ordering the wrong rating is the most common sourcing error here, so confirm your model designation before purchasing.
Manual Section: Electrical System Component RepairFrequently Asked Questions
What are the replacement specifications for tracks?
For Gehl CTL60 and Mustang MTL16 parts, replacement crawler belts include part number 181929 (BELT/RUBBER CRAWLER 12.75X2.875X1.375) and 185637 (TRACK/WIDE TREAD 13.00X3.625X1.125), both with a quantity of 2. For Mustang MTL20, use part number 185206 (BELT/RUBBER CRAWLER), quantity 2. For Mustang MTL25, use part number 181870 (BELT/RUBBER CRAWLER), quantity 2. It is important not to mix wide tread and standard-width tread on the same machine.
What are the replacement specifications for track tension components / grease cylinder?
For 60-16 models, the track adjuster includes a CYLINDER ASSY (L.H.) part number 188174 and CYLINDER ASSY (R.H.) part number 188175, both including items 7-12. For 70-20 and 80-25 models, the CYLINDER ASSY (L.H.) is part number 188187 and CYLINDER ASSY (R.H.) is part number 188188. The VALVE ASSY/CHECK (TRACK ADJUST FITTING) is part number 180987 for all models.
How will I receive this Gehl, Mustang CTL60 & variants Parts Catalog?
A 391-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone — no shipping wait.
Can I print this manual?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Can I find electrical parts diagrams in this Gehl, Mustang CTL60 & variants manual?
Complete electrical parts diagrams are included, covering all electrical systems, harness routing, and connector locations for the Gehl, Mustang CTL60 & variants.
Document Quality
This document is a scanned PDF, and while it includes an OCR layer allowing you to search and copy text, some text appears slightly blurry or faded in places. The diagrams and illustrations are raster images, but their labels remain generally readable. Pages are clean with no notable scan artifacts, stains, or skewed content. There are two intentionally left blank pages, serving as filler.
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