Powertrain or comprehensive — which fits your truck?
Diesel truck vehicle service contracts are generally sold in two broad tiers. Exact component lists and dollar limits vary by provider and plan — what follows is a typical breakdown to help you compare options before you request a quote.
Powertrain-Only Coverage
Focuses on the components most likely to leave a truck undrivable, and most expensive to repair out of pocket — the engine, transmission, and drivetrain. Typically the lowest-cost tier.
- Engine block, heads, and internal components
- Turbocharger housing and internal parts
- Transmission case and internal components
- Drive axle and transfer case internals
- Torque converter and related seals
Comprehensive / Exclusionary Coverage
Starts from powertrain protection and extends further into the truck's other major systems. "Exclusionary" plans list what's NOT covered rather than what is — broader by design, but read the exclusions list carefully.
- High-pressure fuel injection system (pump, injectors)
- Electrical system components and sensors
- Air conditioning and climate control components
- Steering and front suspension components
- Braking system components (varies by provider)
Plus everything typically included in powertrain coverage.
What providers commonly cover on diesel trucks
Diesel-specific components tend to be the expensive ones. Here's how they typically get grouped across coverage tiers.
Turbocharger
Housing, internal components, and related seals — commonly included from the powertrain tier up on diesel-specific plans.
Fuel injection system
High-pressure common-rail pump and injectors — often a mid-tier or comprehensive-tier inclusion given diesel injector repair costs.
Transmission & drivetrain
Case, gears, torque converter, and transfer case internals — a powertrain-tier staple across most providers.
Emissions / aftertreatment
DPF, SCR catalyst, DEF system, and related sensors. Coverage here varies more than any other system — confirm specifics with your provider.
Cooling & engine support
Water pump, oil pump, and related engine-support components, typically bundled with engine internals.
Electrical & climate
Sensors, modules, and air conditioning components — generally a comprehensive-tier addition, not a powertrain-tier default.
What's typically excluded, on any tier
No vehicle service contract covers everything. Understanding common exclusions upfront — before a repair, not during a claim — is part of choosing the right plan.
- Routine maintenance — oil changes, filters, fluid flushes
- Wear items — brake pads, tires, wiper blades, batteries
- Cosmetic damage — paint, upholstery, trim
- Collision, accident, or weather damage (that's an insurance matter)
- Pre-existing conditions or damage from lack of maintenance
- Emissions components, on some base-tier plans (varies by provider)
Exclusion lists vary by provider and contract — always review the specific plan document before purchasing.
Personal use, business use, and fleet coverage
How a truck is used affects which plans are available and how they're priced. Standard personal-use pickups are the most straightforward to quote. Trucks used for business, towing, or in a small fleet often need a commercial-use plan or rider — terms and pricing vary by provider.
Some usage types — like rental, tow/wrecker service, or vehicles fitted with lifting or hoisting equipment — are excluded by many providers regardless of tier. If your truck falls into a specialized use case, tell us upfront so we can match you with a provider that actually covers it.
Compare coverage and request a free quote
Tell us about your truck — type, mileage, and how you use it — and we'll help you understand which coverage tier fits and connect you with a provider for a personalized quote.