Frequently Asked Questions About Kenworth T800 Radiators

Will these radiators fit my specific year and engine configuration of Kenworth T800?

Kenworth T800 radiators vary significantly based on your truck's year (1987-present) and engine type. Key factors include whether you have a Caterpillar C15, Cummins ISX, or Detroit Series 60 engine, as each requires different cooling capacities and mounting configurations. Always verify compatibility by checking your existing radiator's part number, core dimensions (typically ranging from 42" to 48" wide), and inlet/outlet positions. If you're unsure, provide us with your VIN or call our tech support team with your truck's specifications for exact fitment confirmation.

What's the difference between aluminum and copper/brass radiators for my T800?

Aluminum radiators are lighter (typically 40-50% less weight than copper/brass), offer better heat dissipation, and are more resistant to road salt corrosion. However, they require aluminum-compatible coolant and can be more challenging to repair if damaged. Copper/brass radiators are heavier but easier to repair at most shops and tend to be more forgiving with coolant types. For heavy-haul applications or severe-duty cycles, many drivers prefer the durability of copper/brass, while aluminum is popular for weight-conscious operations and newer model compatibility.

Can I install a T800 radiator myself, or do I need special tools?

Installation typically takes 3-4 hours for experienced mechanics and requires basic hand tools, though some specific items make the job easier: a coolant pressure tester, torque wrench for proper mounting bolt specs (usually 25-30 ft-lbs), and potentially a transmission cooler line disconnect tool. The main challenges include safely draining 10-15 gallons of coolant, disconnecting charge air cooler pipes without damage, and ensuring proper alignment of all mounting brackets. Many customers successfully complete DIY installations, but having a helper is strongly recommended due to radiator weight (60-120 lbs) and awkward positioning.

How do I know if I need a standard or heavy-duty radiator for my T800?

Heavy-duty radiators feature additional cooling rows (4-row vs. 2-row cores), larger tube diameters, and increased fin density. You need a heavy-duty radiator if you regularly haul 80,000+ lbs, operate in mountainous terrain, run auxiliary equipment like hydraulic pumps, or experience coolant temperatures exceeding 210?F under normal operation. Standard radiators work well for highway applications and moderate loads. Check your current radiator's core thickness - standard units are typically 2-2.5 inches thick, while heavy-duty versions measure 3-4 inches.

What warranty coverage should I expect, and what voids the warranty?

Most quality T800 radiators come with 1-2 year warranties covering manufacturing defects and premature failure. Warranty typically becomes void if you use incorrect coolant types (mixing conventional green with extended-life orange/red), exceed 15 PSI pressure cap ratings, or show evidence of physical damage from road debris. Installation errors like over-tightening mounting bolts or running without proper coolant mixture (50/50 antifreeze to water ratio) also void coverage. Keep all receipts and document your coolant type and maintenance schedule to ensure warranty protection.