Muir-Hill 161
The Muir-Hill 161 is a tractor produced by Muir Hill. It is equipped with a 510 ci 8.4 L engine. The listed engine power is Diesel (listed): 185 hp / 138.0 kW. Transmission: Fuller RT 610. Drive type: 4x4 4WD. Operating weight: 12000 lbs 5443 kg.
Engine Power
Diesel (listed): 185 hp / 138.0 kW
Drive & Traction
4x4 4WD
Fuel & Capacities
77 gal
291.4 L
Transmission
Fuller RT 610
Operating Weight
12000 lbs
5443 kg
Overview
 | 1969 - 1975
Four-wheel Drive (4WD) tractor |
|---|
Production | |
|---|---|
Manufacturer | Muir-Hill |
Four-wheel Drive (4WD) tractor | |
Built in Manchester, England | |
Muir-Hill 161 Engine | |
|---|---|
Perkins 8.4L 8-cyl diesel | |
Fuel tank | 77 gal
291.4 L |
Engine details ...  | |
Muir-Hill 161 Transmission | |
|---|---|
10-speed gear | |
Transmission details ...  |
Muir-Hill 161 Power | |
|---|---|
Engine | 185 hp
138.0 kW |
PTO (claimed) | 135 hp
100.7 kW |
Mechanical | |
|---|---|
Drive | 4x4 4WD |
Steering | power |
Cab standard. Air-conditioning optional. | |
Hydraulics | |
|---|---|
Type | open center |
Valves | 2 |
Pump flow | 25 gpm
94.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | III |
Dimensions & Tires | |
|---|---|
Wheelbase | 78 inches
198 cm |
Weight | 12000 lbs
5443 kg |
Front tire | 23.1/18x26 |
Rear tire | 23.1/18x26 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 510 ci / 8.4 L Diesel
Manufacturer | Perkins V8.510 |
Fuel Type | Diesel |
Configuration | 8-cylinder, liquid-cooled V-8 |
Displacement | 510 ci
8.4 L |
Bore/Stroke | 4.25x4.50 inches
108 x 114 mm |
Power | 185 hp
138.0 kW |
Compression | 16.5:1 |
Rated RPM | 2500 |
Torque | 390 lb-ft
528.8 Nm |
Torque RPM | 1500 |
Starter type | electric |
Transmission
Transmission — Fuller RT 610
Transmission | Fuller RT 610 |
Type | gear |
Gears | 10 forward and 2 reverse |
 | |
Dimensions
Muir-Hill 161 Tires | |
|---|---|
Ag front | 23.1/18x26 |
Ag rear | 23.1/18x26 |
Dimensions | |
|---|---|
Wheelbase | 78 inches
198 cm |
Length | 165.1 inches
419 cm |
Width | 97.5 inches
247 cm |
Height (hood) | 88 inches
223 cm |
Height (cab) | 114 inches
289 cm |
Weight | 12000 lbs
5443 kg |
Front tread | 74 inches
187 cm |
Rear tread | 74 inches
187 cm |
Photos
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Muir-Hill 161
Recommended Implements & Sizing Guide
Engineering recommendations for Muir Hill Muir-Hill 161 based on its 185 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 5 to 7 Bottom (18")5 - 7 铧 (45 cm) | Commercial / Field Scale | Large acreage tillage; requires front ballast weights. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙 | Commercial / Field Scale | Wide commercial field leveling; requires hydraulic remotes. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Muir Hill Muir-Hill 161.
Estimated Continuous Field Runtime: 8 hrs
Approximately 8 hours of continuous field operation at ~75% rated power on a full tank (77 gal / 291.5 L).
Estimated 75% Load Fuel Burn~9.6 gal/hr (36.4 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Muir Hill Muir-Hill 161 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Muir Hill Muir-Hill 161.
Converted Equivalents:
Horsepower (HP)185 hp
Kilowatts (kW)138 kW
Metric Horsepower (PS / CV)187.6 PS
Direct Competitor Comparison
Compare Muir-Hill 161 against same-era industry alternatives in the same horsepower class.
Current Model
Muir Hill
Muir-Hill 161
Engine Power:Diesel (listed): 185 hp / 138.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 4186
Engine Power:166.7
Production Years:1976 - 1978
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