Platform

Bill of Materials — Part-Level Explorer

TCO
ISO 55000

BOM Value / Loco

50 tracked parts · 16 components

Fleet Parts Capital

Across 12 ES44AC units

Annual Parts Maint.

Labour derived @ 18% of parts

Company Buffer

Warranty reserve across all parts
Add PartLocomotive → System → Assembly → Component → Part

Indented Bill of Materials — ES44AC

HierarchyQtyExt. CostLife

Engine Block (V16 Diesel)

Turbocharger (GEVO)

GTA-7FDLFORMAT

Vital

Wabtec / ABB · Rotable

Maintenance

Interval

40,000hrs

Quantity

1ea

Price

$42,000

Cost / event

$50k

Labour @ 18% of parts$7,560

Extended (qty × unit price)$42,000

Warranty & Risk

Warranty (Years)

3yr

Warranty (Km)

720kkm

Failure probability17%
Company buffer$7,140

$42,000 × 17% — expected warranty reserve

Customer Cost

$99k

Company Cost

$7k

Over 20 years · 2 maintenance events

Procurement · Unit Exchange

Reman $27,000New $42,000

Reman = 64% of new · core credit $6,000/unit

Lead Time

16w

Replace Ivl

9y

Labor / Job

30h

Depreciation — Units of Production

Useful Life

8y

Salvage

$7k

Annual Dep.

$4k

Inventory Position

On-hand vs thresholdsHealthy
SS 1ROP 1Max 2

On Hand

2

Reorder Pt

1

Turns/yr

0.7

ABC / VED

AV

Annual carrying cost$21,000/yr

Annualized maintenance$2,650/yr

Part-Level TCO (20yr)

Customer $2.60MCompany $190kBuffer $171k
PartMaintenance CostWarrantyFailure Prob.Company BufferCustomer CostCompany Cost
Traction Motor (5GEB13 / 752)216 months · ×6 ea$389k1×3yr / 720k km12%$40k$389k$40k
Power Assembly (complete)40,000 hrs · ×16 ea$359k2×3yr / 720k km18%$27k$359k$27k
Armature (DC rewind)120 months · ×6 ea$312k2×3yr / 720k km16%$21k$312k$21k
Composition Shoe (AAR M-926)25,000 km · ×12 ea$130k192×0.5yr / 120k km45%$259$128k$3k
Wheel / Tire (36in)1,000,000 km · ×6 ea$127k4×3yr / 720k km23%$6k$127k$6k
Cylinder Head96 months · ×16 ea$121k2×3yr / 720k km18%$9k$121k$9k
Turbocharger (GEVO)40,000 hrs · ×1 ea$99k2×3yr / 720k km17%$7k$99k$7k
Injector (complete, GEVO EFI)30,000 hrs · ×16 ea$96k3×3yr / 720k km21%$6k$96k$6k
APU (idle-reduction unit)120 months · ×1 ea$94k2×2yr / 480k km10%$4k$94k$4k
Piston (articulated)40,000 hrs · ×16 ea$91k2×3yr / 720k km18%$7k$91k$7k
Carbon Brush Set (DC)18 months · ×6 set$78k13×1.5yr / 360k km25%$1k$72k$7k
Stator Winding (rewind)216 months · ×1 ea$77k1×3yr / 720k km12%$8k$77k$8k
Cylinder Liner (w/ guides)40,000 hrs · ×16 ea$72k2×3yr / 720k km18%$5k$72k$5k
Rotor / Field216 months · ×1 ea$65k1×3yr / 720k km12%$7k$65k$7k
Disc Rotor12,000 hrs · ×4 ea$59k9×3yr / 720k km21%$1k$53k$8k