Sarah Jenkins, CEMP
Fleet Economics & Machinery Analyst
Certified Equipment Manager Specialist analyzing heavy construction equipment life cycles, operating cost economics, and fuel burn metrics.
Editorial Role
What Sarah Jenkins, CEMP Covers
Sarah Jenkins, CEMP contributes practical heavy equipment guidance focused on specs, maintenance intervals, diagnostic workflows, fleet operating costs, and model-to-model comparison decisions. Pages credited here are intended for equipment owners, fleet managers, mechanics, estimators, and buyers who need clear numbers before checking the final OEM manual or dealer documentation.
Technical pages are written to separate verified specification fields from editorial planning estimates such as fuel burn and hourly operating cost. Critical values such as lift capacity, transport dimensions, fluid specifications, torque values, and safety procedures should always be verified against the exact serial range and configuration.
Machine Coverage
Equipment Profiles Referenced by This Author
Published Technical Guides
Maintenance, diagnostics, fleet economics, and equipment comparison articles by Sarah Jenkins, CEMP.
Hitachi ZX350LC-7H vs Cat 336 vs Komatsu PC360: 35-Ton Excavator Comparison
Compare Hitachi ZX350LC-7H, Caterpillar 336 and Komatsu PC360 class excavators by weight class, horsepower, bucket fit, truck loading, transport, dealer support and ownership cost.
Cat 305 CR Operating Cost Per Hour: Fuel, Rubber Tracks, Attachments and Trailer Math
Estimate Cat 305 CR operating cost per hour with fuel burn, rubber tracks, bucket wear, attachments, trailer payload, idle time, maintenance and ownership assumptions.
Volvo EC220E vs Cat 320 vs Komatsu PC200: 22-Ton Excavator Specs, Cost and Job Fit
Compare Volvo EC220E, Cat 320 and Komatsu PC200 class excavators by transport weight, dig depth, hydraulics, dealer support, fuel planning and ownership fit.
Volvo L90H vs Volvo L120H: Wheel Loader Size, Bucket, Fuel Cost and Yard Work Comparison
Compare Volvo L90H and Volvo L120H wheel loaders by bucket range, truck loading, yard work, tire cost, fuel burn, transport, snow work and ownership fit.
Komatsu WA320-8 Operating Cost Per Hour: Fuel Burn, Tires, Bucket Wear and Loader Cycles
Estimate Komatsu WA320-8 cost per hour with fuel burn, tires, bucket edge wear, brakes, loader linkage, idle time, yard cycles, maintenance and ownership.
Komatsu WA320-8 vs Cat 950 GC vs Volvo L90H: Mid-Size Wheel Loader Comparison
Compare Komatsu WA320-8, Cat 950 GC and Volvo L90H wheel loaders by bucket range, operating weight, fuel burn, tire cost, truck loading, yard work and ownership fit.
Volvo EC220E Operating Cost Per Hour: Fuel Burn, Undercarriage, Hydraulics and Ownership
Estimate Volvo EC220E operating cost per hour with fuel burn, undercarriage reserve, hydraulic maintenance, attachments, idle time, utilization and ownership assumptions.
Volvo L90H Operating Cost Per Hour: Fuel, Tires, Bucket Wear, Snow Work and Yard Cycles
Estimate Volvo L90H wheel loader cost per hour with fuel burn, tires, bucket wear, brakes, snow work, roading, idle time, maintenance and ownership.
CASE 580 Super N WT Operating Cost Per Hour: Fuel, Tires, Brakes, Stabilizers and Backhoe Wear
Estimate CASE 580 Super N WT operating cost per hour with fuel burn, tires, brakes, stabilizers, loader pins, backhoe wear, transport and ownership.
CASE 580 Super N WT vs JCB 3CX vs John Deere 310 P-Tier: Backhoe Loader Comparison
Compare CASE 580 Super N WT, JCB 3CX and John Deere 310 P-Tier backhoe loaders by dig depth, roading, loader work, stabilizers, brakes, tires and ownership fit.
Cat 305 CR vs Kubota KX040 vs John Deere 50 P-Tier: Compact Excavator Buying Comparison
Compare Cat 305 CR, Kubota KX040 and John Deere 50 P-Tier compact excavators by tight access work, trailer payload, attachments, rubber tracks and dealer support.
Compact Excavator Trailer Transport Weight Guide: Machine, Bucket, Attachment and Tie-Down Planning
Plan compact excavator transport weight by machine configuration, trailer GVWR, truck rating, bucket and attachment weight, fuel, counterweight, tie-down points and local rules.