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Mitsubishi S6R-MPTK
The Mitsubishi S6R-MPTK marine engine utilizes a dual-circuit indirect seawater cooling system. This system enables compact packaging, precise temperature control, and long component life, even in vessels operating continuously.
Features
High-Temperature (HT) Circuit – Fresh water removes heat from the engine block, cylinder head, and turbocharger before flowing through an integrated plate heat exchanger, where seawater removes the heat.
Low-Temperature (LT) Circuit – A separate stream of fresh water cools the charge air cooler (intercooler); this fresh water is itself cooled by a second stage of seawater within the same heat exchanger assembly.
Seawater Circuit – A gear-driven seawater pump draws raw water through filters, then through the low-temperature section, then the high-temperature section, before being discharged overboard, completely isolating the engine's metal components from the corrosive seawater.
Generator Radiator List
| CUMMINS | 4BT, 6BT, 6BTA, NT855, NTA855, KTA19, KTA38, KTA50, QSK23, QSK50, QSK60, QSK78, QSK90, VTA28 |
MTU | 8V1600, 10V1600, 12V2000, 16V2000, 18V2000, 12V4000, 16V4000, 20V4000 |
MITSUBISHI | S6R, S12R, S12H, S16R, S16R2, S12A2 |
PERKINS | 4006, 4006-TAG, 4008-TAG, 4012-46TAG, 4016-61TRG |
CAT | 3512, 3516B, 3508B, C15 |
Maintance and Service
Pressure Proof: 100% line-tested to 1.5× max working pressure; zero leaks, zero surprises.
24-Month Promise: Warranty twice the market standard—run it hard, we've got the next two years covered.
How We Produce
From ISO-9001 foundry to finished core, every SINRUI radiator is watched at each step—raw material stamped, robot-welded, then run through leak, pressure and thermal gauntlets—so it ships ready for long, fault-free hours.
Pictures of Sinrui's production workshop, raw materials
Radiator product packaging and delivery
