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STM3521 Marine

Thermostaat 71°C Thermostate 71°C

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Fitted to

Engines, drives and generators whose parts catalogue lists this part. Open any for its exploded parts list.

Engines
Vetus M3.28 (SOLAS) 27hpVetus M3.29 27hp

OEM interchange

Same component rebadged by another engine marque — often the same part at a different dealer counter.

Equivalent P/NBrandDescriptionSourceConfidenceShop
30L46-04600 Mitsubishi Additional Mitsubishi L3E thermostat part number; note=verify against STM3521 spec yemparts.com Mitsubishi L3E thermostat listing likely
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MM433-54801 Mitsubishi Mitsubishi L3E thermostat; Vetus STM3521 used on M2 and M3 (L2E/L3E base); note=verify opening temp matches 71C shop4trac.com / tracpartz.com — thermostat listed for Mitsubishi L3E and cross-listed with Vetus M2/M3 likely
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Used in 5 places

Every catalog figure this part is placed in, the model(s) it applies to, and its reference/level/quantity.

Model(s)CatalogFigurePageRefLevQty
M3.28, M3.29 Vetus M3.28 M3.29 Parts Catalog (EN-NL) (vtpdf136) Fig 19. Model modification M3.28 Warmtewisselaar units Heat exchanger units 31 31 1
M3.28, M3.29 Vetus M3.28 M3.29 Parts Catalog (EN-NL) (vtpdf136) Fig 20. Model modification M3.28 Kielkoelspruitstuk Keelcooler manifold 34 33 1
M3.28, M3.29 Vetus M3.28 M3.29 Parts Catalog (EN-NL) (vtpdf136) Fig 21. 40 M3.29 Warmtewisselaar unit 07-2018-> Heat exchanger unit 07-2018-> 37 31 1
M3.28, M3.29 Vetus M3.28 M3.29 Parts Catalog (EN-NL) (vtpdf136) Fig 22. 47 M3.29 Kielkoelspruitstuk 07-2018-> Keelcooler manifold 07-2018-> 40 33 1
M3.28, M3.29 Vetus M3.28 M3.29 Parts Catalog (EN-NL) (vtpdf136) Fig 25. 9 M3.28 M3.29 Circulatiepomp Circulation pump 45 11 1