One New Aftermarket Replacement Gear Reduction Starter for Oliver, Fits John Deere, and Fits Bobcat Equipment
This 12-volt OSGR (offset gear reduction) starter is a direct-fit aftermarket replacement for Oliver tractors, Fits John Deere diesel tractors, and Fits Bobcat skid steer loaders and articulated loaders. It mounts to the engine block via three unthreaded .42-inch ears and features a 3-terminal solenoid with a wet clutch seal. Part number 1998359 is a widely cross-referenced Fits Delco 28MT-series replacement used across multiple equipment brands and engine families.
Specifications
- Voltage: 12V
- Rotation: Clockwise (CW)
- Starter Type: OSGR (Offset Gear Reduction)
- Number of Teeth: 10
- Gear OD: 1.575 in / 40 mm
- Registry OD: 3.504 in / 89 mm
- Mounting Ear Hole: .42 in Unthreaded (3 ears)
- Mounting Ear Center-to-Center: 3.5 in / 88.9 mm (all 3)
- Solenoid: 3-Terminal
- Wet Clutch Seal: Yes
- Unit Series: Fits Delco 28MT
Compatible Models
Oliver Tractors: 77, 88, 880, 1650, 1655, 1755, 1850, 1855
Fits John Deere Tractors (Diesel Engine, 12-Volt System): 3010 (diesel, 12V system), 3020 (diesel, 12V system – BSN 123000), 4010 (diesel – ASN 123000), 4020 (diesel, 12V system – BSN 201000)
Fits Bobcat Skid Steer Loaders and Articulated Loaders (Isuzu or Perkins Diesel Engine): 843B, 843HC, 853, 853H, 943, 974, 2000
Note Fits John Deere 3010/3020/4020: Serial number restrictions apply. Verify your tractor’s diesel engine configuration and 12-volt electrical system before ordering.
Replaces Part Number(s):
1998359, 1998360, 1998379, 1113285, 1109539, 1109194, 1109192, 111383, 110590, 10465349, 10465401, X34107, 6578, 6179
Aftermarket Interchange Numbers
AR34406, AR41627, AR55638, R1200757, R1200757-A, TY6667, 91-01-3957, 91-01-3957-A, 91-01-4002, 1113088, 1113098, SNK0038, 410-12128, 41012128R
New aftermarket replacement part – not remanufactured, not used.
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