XZR8®
JLG 70007603 Thermostat Assembly 88°C

JLG 70007603 Thermostat Assembly 88°C


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Opening Temperature88°C (190°F)
Heater TypeWax Expansion Element
Valve Body MaterialStainless Steel
Seal TypeIntegrated Gasket
ApplicationsEngine Jacket Water Cooling
Net Weight0.35 kg
Package Dimensions10 × 10 × 5 cm

Manufacturer No.

  • 70007603
  • 243440
  • DTZ00676636

OEM Part No.

  • 70007603

Engine Part No.

  • Deutz TD2.9L4
  • Deutz TD2.2L3
  • Deutz D2.9L4

Interchange No.

  • 243440
  • DTZ00676636

Fitment Vehicles

  • JLG 600S
  • JLG 660SJ
  • JLG 400S
  • JLG 460SJ
  • JLG 450A
  • JLG 450AJ
This thermostat regulates engine coolant temperature for Deutz TD2.9L4, TD2.2L3, and D2.9L4 diesel engines. It features a high-sensitivity wax expansion element, stainless steel valve body, and integrated sealing gasket for precise thermal management in heavy-duty cycles. Direct OEM replacement for JLG part number 70007603 and cross-reference 243440. Supersedes JLG part DTZ00676636. Designed for jacket water cooling systems on JLG telescopic and articulating boom lifts.