Temperature Sender 107-8618 for CAT 314D 330D Excavator 988F Loader – Coolant Oil Temp Probe

OE Number: 107-8618Compatibility: CAT 314D, 330D Excavators; 988F Loader (with C6.6/C7/C9 engine)Type: NTC Thermistor Temperature SenderResistance Range: Matches OEM curve (~100Ω at 100°C to ~1,000Ω at 20°C)Thread Size: 1/8" NPTElectrical Connector: Single-terminal spadeOperating Temperature: -40°C to +150°CBody Material: Brass with high-temp epoxy seal

• Aftermarket temperature sender (OE 107-8618) for Caterpillar 314D and 330D excavators, 988F wheel loaders — monitors engine coolant or hydraulic oil temperature in C6.6, C7, and C9 industrial engines for accurate analog gauge display in construction and earthmoving applications.
• This is a passive NTC thermistor sender, not a digital sensor or switch. It provides a resistance-based signal that precisely matches the OEM calibration curve — enabling reliable dashboard readings without ECU communication or emission system involvement.
• Sealed brass body with 1/8" NPT thread and corrosion-resistant terminal withstands heat, vibration, and fluid exposure in demanding grading, digging, and loading operations across North America.
• Direct OEM-fit replacement with identical electrical characteristics and mounting profile. Install in minutes with standard tools — no wiring changes or recalibration needed.
• ⚠️ For off-road Caterpillar construction equipment only. Not approved for on-highway vehicles, agricultural tractors, marine engines, irrigation systems, pesticide sprayers, or refrigeration units.