Precision Remanufacturing for Volvo Group Powertrains
The Volvo / Mack 85136427 EGR Cooler is engineered specifically for the D11 and MP7 engines used in 2011–2016 VNL, VHD, VNM, Pinnacle, and Granite models. This remanufactured cooler restores factory-level exhaust gas recirculation performance while exceeding OEM durability benchmarks. Built under the Turbo Kings reman standard, every cooler is precision-reconditioned to handle the extreme thermal cycling and vibration loads common in heavy-duty vocational and on-highway applications.
Each core undergoes complete disassembly, ultrasonic carbon removal, and hot alkaline cleaning to eliminate all oil and soot deposits from the inner fin network. Internal passages are then flushed through a high-temperature aqueous descaling process that re-exposes the stainless channels for full thermal efficiency. The housing is inspected for micro-cracks using dye-penetrant and pressure-decay testing at 125 PSI, guaranteeing separation between the coolant and exhaust circuits.
Where heat-stressed joints show early fatigue, Turbo Kings reinforces them using TIG-welded end caps and structural bead overlay, a technique proven to outlast original Volvo Group welds. All machined faces are re-surfaced to mirror finish and the unit is baked in a controlled-temperature curing oven to stabilize weld tension before final assembly.
What Makes a Turbo Kings Rebuild Different
Turbo Kings doesn’t just clean—we re-engineer durability back into every core. The D11/MP7 cooler’s known weak points—typically at the inner tube joints and water-jacket ends—are strengthened with precision stainless filler matched to OE metallurgy. After assembly, every unit is flow-bench tested to confirm exhaust restriction and coolant balance match factory specs.
Our dual-stage chemical process combines alkaline degreasing (pH > 11) and acidic descaling (pH ≈ 2.5) under temperature-controlled agitation, fully restoring internal efficiency without compromising brazed fins. Each cooler is serialized, recorded, and certified before packaging, ensuring traceability and long-term reliability for both fleet and owner-operator applications.
Why Fleets and Owner-Operators Trust Turbo Kings
Direct OEM Replacement – For Volvo D11 / Mack MP7 (2011–2016)
Pressure-Tested to 125 PSI – Ensures zero cross-leak between exhaust and coolant
Dual-Stage Cleaning Process – Removes 100 % of carbon and coolant scale
TIG-Reinforced Welds – Strengthens end caps and flange seams beyond OE standards
Flow-Bench Verified – Confirms balanced EGR cooling performance
Warranty: 6 months, unlimited mileage – backed by Turbo Kings reliability
Each reman cooler is delivered ready to install—no rework, no leaks, no compromise.
Our Process at a Glance
Core Disassembly & Visual Inspection – Identify stress fractures and thermal distortion
Ultrasonic Alkaline Cleaning – Dissolves oil residue and carbon deposits
Acid Descaling Treatment – Restores internal heat-transfer surfaces
TIG-Weld Reinforcement – Rebuilds weak OEM welds to heavy-duty specification
125 PSI Pressure & Flow Testing – Verifies system integrity and coolant isolation
Oven Cure & Quality Certification – Stabilizes metallurgy and finalizes corrosion resistance
