Engineered for Heavy-Duty Reliability and Heat Control
The Volvo / Mack 85136428 EGR Cooler is designed for 2011–2016 D13 and MP8 engines, powering some of the most proven workhorses on North American highways — from Volvo VNL and VHD to Mack Pinnacle, Granite, and Anthem. Remanufactured by Turbo Kings, each unit restores OEM-grade thermal efficiency and durability while reinforcing the weak points that often lead to premature cracking or internal leakage in factory units.
Each EGR core is completely disassembled, chemically stripped, and ultrasonically cleaned to remove soot, coolant residue, and hardened carbon. The internal fin matrix is then treated through a hot alkaline detergent bath followed by an acid descaling cycle — dissolving deposits and restoring unrestricted flow through every coolant and exhaust passage. All housings are dye-penetrant tested for hairline fractures and pressure-tested to 125 PSI, confirming complete separation between the exhaust and coolant systems before any reassembly begins.
Turbo Kings weld specialists then TIG-reinforce every stress-prone seam and end tank using a stainless filler rod matched to the original Volvo metallurgy. After welding, all mating surfaces are resurfaced for perfect gasket contact and verified for alignment across the manifold and mounting planes. The finished cooler is oven-cured to relieve weld tension and sealed under a corrosion-inhibiting film to ensure long-term durability.
What Makes a Turbo Kings Rebuild Different
Our EGR rebuilds aren’t just cleaned — they’re re-engineered for longevity. Each Volvo / Mack cooler is flow-bench validated to confirm balanced exhaust distribution and coolant performance that matches or exceeds OE standards. We target the chronic failure points of OEM units, applying thicker wall material and improved weld bead profiles to resist vibration-related fatigue.
Turbo Kings’ dual-stage cleaning process uses precisely monitored pH control to eliminate all carbon and oxidation without eroding brazed fins or softening joints. Every cooler is serialized and logged for full traceability through the Turbo Kings QA system — ensuring that each unit you receive is fully documented and certified for road-ready reliability.
Why Fleets and Owner-Operators Trust Turbo Kings
Direct OEM Replacement – Fits Volvo D13 / Mack MP8 (2011–2016)
Pressure-Tested to 125 PSI – Validated coolant and exhaust isolation
Dual-Stage Chemical Cleaning – Removes 100 % of soot and coolant scale
TIG-Reinforced End Caps and Seams – Strengthened beyond OEM construction
Flow-Bench Verified Performance – Matches original exhaust flow and cooling balance
Warranty: 6 months / unlimited mileage – Turbo Kings confidence built in
Delivered ready to install — no leaks, no carbon restriction, and no shortcuts.
Our Process at a Glance
Core Inspection & Disassembly – Check welds, housing, and fin integrity
Hot Alkaline Cleaning – Loosens carbon and oil residues
Acid Descaling – Clears scale and oxidation for full heat transfer
TIG-Weld Reinforcement – Strengthens OEM joints and tube ends
125 PSI Pressure Testing – Confirms system isolation and leak-free cooling
Oven Cure & Final QC Certification – Stabilizes alloy and locks in corrosion protection
