Thermostat Assembly for Ford OEM 1681993

Product Overview

Thermostat Assembly for Ford OEM 1681993 is a direct-reference replacement for the coolant control circuit of Ford vehicles. It is listed here against OEM 1681993, 1779760, 1838288, 9M5Q8A586AA, 9M5Q8A586AB and 9M5Q8A586AC, so the part can be matched to a vehicle without guesswork. This part carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. The failure modes that bring it across a parts counter are leaking sensor bosses and elements that stick part open, reported as a gauge that never settles in the normal band, higher fuel consumption and thermostat fault codes. Hunan Woojin Autoparts supplies it from a cooling-system range of more than 4000 types covering German, French, Japanese, American and Korean vehicles.

The source photograph for this reference is low resolution. A higher-resolution image can be sent by email on request.

Key Benefits

• Aftermarket buyers, not one-off retail — Pricing and packing are set up for distributors and workshop chains buying by the carton, not for single-piece retail.
• Ordered by reference not by photo — The listing carries OEM 1681993, 1779760, 1838288, 9M5Q8A586AA, 9M5Q8A586AB and 9M5Q8A586AC. You quote the number, we confirm against the same number, and the part that ships is the one on the invoice.
• Consolidate the platform in one order — Hoses, flanges and thermostat housings for the same platform ship on one pallet, which shortens the paperwork and the freight bill.
• Sample-based production for parts not yet listed — Send the old part or a drawing and we quote from the sample, including mould development where no tool exists.

Application Scenarios

Counter stock for a busy platform

Ford volume in the region justifies holding the line on the shelf instead of ordering it in per job. On this reference that means quoting 1681993 with the quantity and letting the packing follow.

Breakdown repair

The vehicle is off the road and the part has to be right the first time, which makes the reference match the whole decision. This reference, 1681993, is bought for exactly that situation on Ford vehicles.

Rebuild of an obsolete platform

The original reference is no longer produced, so the part is made from a supplied sample. This reference, 1681993, is bought for exactly that situation on Ford vehicles.

Who It Is For

• Workshop and fast-fit chains — replacing thermostat housing assemblys on Ford daily and judging a supplier on whether the part fits first time. What they need from 1681993 is that it fits the Ford on the ramp today.
• Online parts sellers — listing by OEM reference, where a mismatched number turns into a return and a negative rating. They order 1681993 by the carton and reorder against the same number.
• Fleet and bus operators — running Ford vehicles past warranty and buying cooling-system parts by the box to keep downtime short. What they need from 1681993 is that it fits the Ford on the ramp today.

Problems It Solves

Parts that are no longer produced

When the original reference is dropped, the repair still exists. Sample-based production and mould development keep the line alive. On 1681993 that is settled before the quotation goes out.

Returns from wrong fitment

Every returned part costs the freight twice. Checking the opening temperature, the housing outline and whether the unit is map-controlled before despatch is cheaper than a credit note. That is why 1681993 carries its full cross-reference set on this page.

Long lead times on slow movers

A slow line ordered alone waits for a container. Consolidated with fast movers it travels on the same shipment. For Ford buyers it is the difference between a stocked line and a credit note on 1681993.

Technical Features

The part serves the coolant control circuit and carries the wax element, housing, seals and — on mapped units — the heater and temperature sensor that govern warm-up. Material for this reference is confirmed per enquiry. The listed opening temperature is 83°C, which is the figure that has to match the vehicle.

Matched to the circuit the part serves. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

Specifications

Values marked TBC are not stated on the source catalogue. They are confirmed in writing on the quotation rather than estimated here.

Comparison With the Alternatives

Use Guide

1. Confirm the reference

   Match OEM 1681993, 1779760, 1838288, 9M5Q8A586AA, 9M5Q8A586AB and 9M5Q8A586AC against the number on the part you removed. Do not match on outline alone.

2. Check the interfaces

   Compare the opening temperature, the housing outline and whether the unit is map-controlled before the vehicle is stripped further.

3. Inspect on arrival

   Look for transit damage on sealing faces and connectors. Confirm the compound against the reference before ordering, because visually identical parts are moulded in different materials.

4. Fit with the original clamp style

   Reuse the clamp type the Ford platform was designed around, and fit any seal or O-ring supplied with 1681993 rather than carrying the old one over.

5. Pressure check before handover

   Refill, bleed the circuit and check for cracked plastic housings at working temperature before the vehicle leaves.