Head to head · Utility

Advance-Rumely 6A vs Caterpillar RD8

Image not recorded
Advance-RumelyModel A

Advance-Rumely 6A

Utility

power
Not recorded
displacement
404 ci
Cylinders
6
Forward gears
6
Full 6A specs
Image not recorded
CaterpillarModel B

Caterpillar RD8

Industrial

power
Not recorded
displacement
1,246 ci
Cylinders
6
Forward gears
6
Full RD8 specs
Advance-RumelyAdvance-Rumely 6A
vs
CaterpillarCaterpillar RD8

How they compare

Headline specs vs. the whole Utility

n = 3,933–5,720

Engine Displacement

▲ RD8 higher · +842 ci (+208%)
6A404 ci
RD81,246 ci
Median Utility Tractor183 ci

6A is in the 90th percentile; RD8 is in the 99th · 5,580 models

Cylinders

= Effectively tied
6A6
RD86
Median Utility Tractor4

6A is in the 93rd percentile; RD8 is in the 93rd · 5,720 models

Forward Gears

= Effectively tied
6A6
RD86
Median Utility Tractor12

6A is in the 11th percentile; RD8 is in the 11th · 4,941 models

Operating Weight

▲ RD8 higher · +27,130 lb (+426%)
6A6,370 lb
RD833,500 lb
Median Utility Tractor5,303 lb

6A is in the 60th percentile; RD8 is in the 98th · 5,107 models

6A (A)RD8 (B)Median Utility Tractor

Full comparison

Every spec, side by side

General Information

SpecAdvance-Rumely 6ACaterpillar RD8Difference
ManufacturerAdvance-RumelyCaterpillar—
Model6ARD8—
CategoryUtility, Standard TreadIndustrial—

Engine

SpecAdvance-Rumely 6ACaterpillar RD8Difference
ManufacturerWaukeshaCaterpillar—
ModelNot recordedD13000—
Rated RPM1,365RPM1,000RPM▲ 6A+365 RPM · +37%
Cylinders66Same
Displacement404ci1,246ci▲ RD8+842 ci · +208%
Bore4.3in5.8in▲ RD8+1.5 in · +35%
Stroke4.8in8in▲ RD8+3.2 in · +67%

Transmission

SpecAdvance-Rumely 6ACaterpillar RD8Difference
TypeGearGearSame

Dimensions & Weight

SpecAdvance-Rumely 6ACaterpillar RD8Difference
Length163inNot recorded—
Width70in20in▲ 6A+50 in · +250%
Height74inNot recorded—
Operating Weight6,370lb33,500lb▲ RD8+27,130 lb · +426%

Hydraulics

SpecAdvance-Rumely 6ACaterpillar RD8Difference
Steering TypeManualNot recorded—

Chassis & Drive

SpecAdvance-Rumely 6ACaterpillar RD8Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WDNot recorded—
Steering TypeManualNot recorded—

Capacities

SpecAdvance-Rumely 6ACaterpillar RD8Difference
Coolant9.5galNot recorded—

Category context

Both models against the field

Engine Displacement

median 183 ci
A · 90th percentile (404 ci)B · 99th percentile (1,246 ci)

Cylinders

median 4
A · 93rd percentile (6)B · 93rd percentile (6)

Forward Gears

median 12
A · 11th percentile (6)B · 11th percentile (6)

Operating Weight

median 5,303 lb
A · 60th percentile (6,370 lb)B · 98th percentile (33,500 lb)

Width

median 66 in
A · 61st percentile (70 in)B · 1st percentile (20 in)
A · 6AB · RD8Median Utility Tractor
Full spec pageAdvance-Rumely 6AFull spec pageCaterpillar RD8